CHL2008 Book of abstract - Fakulta chemická - Vysoké učení ...
CHL2008 Book of abstract - Fakulta chemická - Vysoké učení ...
CHL2008 Book of abstract - Fakulta chemická - Vysoké učení ...
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Brno University <strong>of</strong> Technology<br />
Faculty <strong>of</strong> Chemistry<br />
4 th Meeting<br />
on Chemistry and Life<br />
<strong>Book</strong> <strong>of</strong> Abstracts<br />
Brno, September 9–11, 2008
Editor’s note:<br />
The contributions published in this <strong>Book</strong> <strong>of</strong> Abstracts as well as the full text papers<br />
published in a special issue <strong>of</strong> the Chemické listy journal share the same numbering<br />
scheme based on alphabetical order <strong>of</strong> corresponding author surname within the individual<br />
conference sections. Author index is available at the Appendices chapter <strong>of</strong><br />
this <strong>Book</strong>. Based on the requests <strong>of</strong> some authors, several full text contributions were<br />
not published in the journal even though they had been presented at the conference<br />
(either in the form <strong>of</strong> posters or lectures). Short <strong>abstract</strong>s <strong>of</strong> all the conference contributions<br />
are published in this <strong>Book</strong> <strong>of</strong> Abstracts <strong>of</strong> the 4 th Chemistry and Life 2008<br />
conference and are also available at the conference website<br />
(www.fch.vutbr.cz/chl_2008).<br />
© Petr Dzik (ed.), 2008<br />
ISBN 978-80-214-3715-9
Contents<br />
Preface<br />
Conference Partners ............................................................................................................43<br />
Foreword ...............................................................................................................................45<br />
Plenary Lectures<br />
PL-01 Functional Dairy Products – from Traditional to Modern<br />
Technology ..............................................................................................................P.3<br />
Irena Rogelj and Bojana Bogovič Matijašić<br />
PL-02 Alkali-activated Aluminosilicates: Past, Present and Future ...........................P.4<br />
Pavel Krivenko<br />
PL-03 Organic Anthropogenic Contaminants in River Systems<br />
– Complementary Environmental Approaches .................................................P.5<br />
Jan Schwarzbauer<br />
PL-04 Dark Side <strong>of</strong> Chemistry in Human Civilization ................................................P.6<br />
Pavel Častulík<br />
PL-05 Challenges <strong>of</strong> the Analysis <strong>of</strong> Food and Environmental Matrices<br />
by GC-TOF MS and GCxGC-TOF MS ................................................................P.7<br />
Tomáš Kovalczuk, Jitka Zrostlíková, Jana Hajšlová, Jakub Schůrek, Mark<br />
Libardoni<br />
PL-06 Nanoparticle Characterisation Using Light Scattering Techniques ...............P.8<br />
Michael Kaszuba<br />
PL-07 Rapid stability assessment and particle characterization for food<br />
and non-food products by multisample analytical centrifugation .................P.9<br />
D. Lerche, T. Sobisch, S. Küchler, A. Uhl<br />
PL-08 Transformation <strong>of</strong> Petroleum Type Pollutant in the Environment ...............P.10<br />
Branimir Jovancicevic
Table <strong>of</strong> Content<br />
Section 1: Environmental Chemistry & Technology<br />
Lectures<br />
1-L01 Ecotoxicity vs. Contamination vs. Composition <strong>of</strong> River<br />
Sediments: the Quest for Determinants <strong>of</strong> Toxic Effects ..................................1.5<br />
Luděk Bláha, Klára Hilscherová, Tomáš Čáp, Jana Klánová, Jiří Machát,<br />
Ivan Holoubek<br />
1-L02 Degradation Products <strong>of</strong> Synthetic Polymers as Emerging<br />
Environmental Contaminants ..............................................................................1.6<br />
Josef Čáslavský, Milada Vávrová, Daniela Mácová, Ludmila Mravcová<br />
1-L03 Usage <strong>of</strong> Gas Chromatography and IMS Detection for Evaluation<br />
<strong>of</strong> Polymer Barrier Material Properties ...............................................................1.7<br />
J. Dvořáková, I. Mašek<br />
1-L04 Complex Essessment <strong>of</strong> Organophosphates Low Dose Chronic<br />
Exposure on Endothelium, Macrophages, Platelets and Esterases ...............1.8<br />
Ermolaeva E.,Goncharov N., Radilov A., Glashkina L., Mindukshev I.,<br />
Avdonin P., Dobrylko I., Rembovskiy V.<br />
1-L05 Influence <strong>of</strong> Climate Conditions and Air Contamination on<br />
Village Inhabitants Health ....................................................................................1.9<br />
Melánia Feszterová, Slavomíra Kašiarová<br />
1-L06 Integration Metallomics, Proteomics and Transcriptomics in<br />
Environmental Issues ..........................................................................................1.10<br />
J. L. Gomez-Ariza, T. Garcia-Barrera, M. Gonzalez-Fernandez, J. Lopez-<br />
Barea and C. Pueyo *<br />
1-L07 Heavy Metals in Solid Immisions in the Vicinity <strong>of</strong> Iron Ore<br />
Mining and Processing Plant in Nižná Slaná ...................................................1.11<br />
J. Hančuľák, E. Fedorová, O. Šestinová, T. Špaldon, P. Slančo, J. Brehuv<br />
1-L08 Comparison <strong>of</strong> Energy Dispersive X-RAY Fluorescence<br />
Spectrometry, Inductively Coupled Plasma Optical Emission<br />
Spectrometry and Laser Ablation with Plasma Spectrometry<br />
and Laser Ablation with Plasma Spectrometry in the Elemental<br />
Analysis <strong>of</strong> Experimenta .....................................................................................1.12<br />
Ivona Hubová<br />
1-L09 Tissue-Specific Distribution and Accumulation <strong>of</strong> Organochlorine<br />
Pollutants in Selected Raptor Species from the Czech Republic ..................1.13<br />
Radim Lána, Milada Vávrová, Vladimír Večerek, Stanislav Kráčmar
Table <strong>of</strong> Content<br />
1-L10 CBRN Terrorism and International Legal Constraints ...................................1.14<br />
Jiří Matoušek<br />
1-L10 Optimization <strong>of</strong> Combustion Process in a Biomass Fuel Bed as a<br />
Way to Reduce a Greenhouse Gas Emitions ...........................................................<br />
Biljana Miljkovic, Borivoj Stepanov, Ivan Pesenjanski<br />
1-L11 Applicability <strong>of</strong> a High Performance Chelation Ion<br />
Chromatographic Method to the Determination <strong>of</strong> Aluminium in<br />
Antarctic Surface Seawater .................................................................................1.15<br />
Juliette Tria, Pavel Nesterenko, Andrew Bowie, Edward Butler, Paul Haddad<br />
1-L12 Direct Analysis in Real Time–Time-<strong>of</strong>-Flight Mass Spectrometry:<br />
Analysis <strong>of</strong> Pesticides and Enviromental Contaminans .................................1.16<br />
Lukáš Václavík, Jakub Schůrek, Tomáš Čajka, Jana Hajšlová<br />
1-L13 The Using <strong>of</strong> Pine-Needles, Bryophytes and Sponges as<br />
Bioindicators for the Evaluation <strong>of</strong> Persistent Organic Pollutants<br />
Environmental Levels ..........................................................................................1.17<br />
M. Vávrová, R. Lána, M. Hroch, I. Hlaváčková, J. Čáslavský, B. Tremlová<br />
Posters<br />
1-P01 Ultra Trace Determination <strong>of</strong> Silver in Preconcentrated Water<br />
Samples by Electrothermal Atomic Absorption Spectrometry .....................1.21<br />
Seyyed Hamid Ahmadi, Javad Didevar Asl<br />
1-P02 Removal <strong>of</strong> 2-mercaptobenzothiazole from Synthetic Wastewater ..............1.22<br />
Beáta Almásiová, Ján Derco, Angelika Kassai<br />
1-P03 Health Risk Assessment by Indoor Air Quality Monitoring .........................1.23<br />
Ekaterina Andreeva, Ivan Mašek, Milada Vávrová<br />
1-P04 Nitrogen in breeding laying hens and environment protection ...................1.24<br />
Mária Angelovičová, Marek Angelovič, Miroslava Kačániová, Daniela<br />
Liptaiová, Kamil Močár, Dávid Št<strong>of</strong>an<br />
1-P05 Testing <strong>of</strong> Various Sorbents for Copper Removal from Acid Mine<br />
Drainage ................................................................................................................1.25<br />
Magdaléna Bálintová, Natália Kovaliková<br />
1-P06 Influence <strong>of</strong> Composite Sorbent for Selected Elements Content in<br />
the Sediment Load <strong>of</strong> a Water Reservoir and Mine Sludge Basin.................1.26<br />
Ján Brehuv, Oľga Šestinová, Tomislav Špaldon, Pavel Slančo, Jozef<br />
Hančuľák, Erika Fedorová
Table <strong>of</strong> Content<br />
1-P07 Monitoring <strong>of</strong> Different Trace Metals Species Concentration in<br />
Morava River ........................................................................................................1.27<br />
Lukáš Brulík, Pavel Diviš, Hana Dočekalová and Jiří Machát<br />
1-P08 Volatile Degradation Products <strong>of</strong> Polyurethane Foams .................................1.28<br />
Josef Čáslavský, Daniela Mácová, Tereza Tobiášová<br />
1-P09 English fro Chemists Can Be pHun ...................................................................1.29<br />
Gabriela Clemensová<br />
1-P10 Dynamic Simulation <strong>of</strong> Biological Nitrogen Removal Processes....................1.30<br />
Lenka Černochová, Ján Derco<br />
1-P11 Application <strong>of</strong> a 6-Mercaptopurine Functionalised Sorbent for<br />
Diffusive Gradients in Films Technique ...........................................................1.31<br />
Pavel Diviš and Roman Szkandera<br />
1-P12 The Determination <strong>of</strong> Methylmercury in Water Ecosystems ........................1.32<br />
H. Doležalová Weissmannová, J. Čáslavský, M. Vávrová, L. Tuhovčáková<br />
1-P13 Ecotoxicological Testing and Test Methods <strong>of</strong> Chemicals and<br />
Waste ......................................................................................................................1.33<br />
H. Doležalová Weissmannová, H. Zlámalová Gargošová<br />
1-P14 Examining Indoor Aerosols ................................................................................1.34<br />
Adriana Eštoková, Nadežda Števulová, Lenka Kubincová<br />
1-P15 Atmospherical Deposition and Imission Situation in the Nižná<br />
Slaná Area ..............................................................................................................1.35<br />
Erika Fedorová, Jozef Hančuľák, Oľga Šestinová, Ján Brehuv, Tomislav<br />
Špaldon<br />
1-P16 The Natural and Anthropological Sources <strong>of</strong> the Halciansky<br />
Water Reservoir Contamination ........................................................................1.36<br />
Melánia Feszterová, Slavomíra Kašiarová<br />
1-P17 Biomodified Forms <strong>of</strong> Zeolites and their Environmental<br />
Application .........................................................................................................1.37<br />
Ľubica Fortunová, Mária Reháková, Silvia Čuvanová, Lucia Gaberová,<br />
Mária Kušnierová
Table <strong>of</strong> Content<br />
1-P18 Distribution Patterns <strong>of</strong> Organic Pollutants in Brno Lake with<br />
Respect to Its Depositional History ..................................................................1.38<br />
Eva Francu, Jan Schwarzbauer, Mathias Ricking, Radim Lána, Pavel<br />
Muller, Juraj Francu<br />
1-P19 New Resin Gel for Diffusive Gradients in Thin Film (DGT)<br />
Technique ..............................................................................................................1.39<br />
M. Gregušová, B. Dočekal, H. Dočekalová<br />
1-P20 Extending <strong>of</strong> the Scope <strong>of</strong> GC/MS Method for Multiple pesticide<br />
Residues: Validation Study ................................................................................1.40<br />
Markéta Hakenová, Jana Urbanová, Ondřej Lacina, Vladimír Kocourek, Jana<br />
Hajšlová<br />
1-P21 Challenges in the Analysis <strong>of</strong> Hexabromocyclododecane (HBCD)<br />
in the Environmental Samples ...........................................................................1.41<br />
Petra Hrádková, Jan Poustka, Jana Pulkrabová, Michaela Nápravníková,<br />
Jana Hajšlová<br />
1-P22 The Content <strong>of</strong> Polybrominated Diphenyl Ethers in Freshwater<br />
Fishes from Brno Water Reservoir .....................................................................1.42<br />
M. Hroch , M. Vávrová , V. Večerek<br />
1-P23 Examination <strong>of</strong> Aband)oned Sb Deposits by Mineralogical and<br />
Geochemical Methods in Poproč (Slovakia) .....................................................1.43<br />
Michal Jankulár, Tomáš Klimko, Michal Šutriepka, Marek Vaculík<br />
1-P24 Determination <strong>of</strong> Volatile Compounds and Saccharides at Alder<br />
Wood Hydrolysis .................................................................................................1.44<br />
František Kačík, Marta Laurová, Danica Kačíková<br />
1-P25 Determination <strong>of</strong> Methylmercury in Sediments by Headspace<br />
Gas Chromatography and Atomic Fluorescence Detection after<br />
Aqueous Phase Ethylation with Sodium Tetraethylborate ............................1.45<br />
Milada Kadlecová, Baghdad Ouddane, Hana Dočekalová, Jean-Claude<br />
Fischer<br />
1-P26 Modeling <strong>of</strong> Dispersion <strong>of</strong> Windborne Material in Atmosphere ..................1.46<br />
Michal Kapoun, Radim Dvořák<br />
1-P27 Reprocessing <strong>of</strong> Dangerous put out Chemicals and Wastes ........................1.47<br />
Juraj Kizlink
Table <strong>of</strong> Content<br />
1-P28 Application <strong>of</strong> Chitosan by Water Treatment .................................................1.48<br />
Zuzana Klímová<br />
1-P29 Substituted Carboxylic Acids as a Guest for Cucurbiturils ...........................1.49<br />
Viktor Kolman, Vladimír Šindelář<br />
1-P30 The Effect <strong>of</strong> Waste Basalt Wools on the Chemical, Agrochemical,<br />
Pedological and Hygienic-Toxicological Soil Parameters ..............................1.50<br />
Peter Kováčik, Alena Vollmannová, Jaroslav Noskovič<br />
1-P31 Influence <strong>of</strong> Water Erosion Processes on the Bottom Sediment<br />
Quality ...................................................................................................................1.51<br />
Natália Kovaliková, Magdaléna Bálintová<br />
1-P32 Modelling And Diagnosing <strong>of</strong> Mechanical Engineering Life Cycle<br />
Production Process ..............................................................................................1.52<br />
Ružena Králiková, Alena Paulíková<br />
1-P33 Simulation Of Chemical Factors in Working Environment ..........................1.53<br />
Ružena Králiková, Alena Pauliková<br />
1-P34 Multi-Residue Method for the Analysis <strong>of</strong> Pesticides and<br />
Mycotoxins in Cereals by LC-MS/MS ...............................................................1.54<br />
Ondřej Lacina, Jana Urbanová, Alexandra Krplová, Lukáš Václavík, Jana<br />
Hajšlová and Jan Poustka<br />
1-P35 Aerobic MTBE Biodegradation by Paecilomyces Variotii ............................1.55<br />
Blazo Lalevic,Vera Raicevic, Ljubinko Jovanovic, Dragan Kikovic,Miomir<br />
Niksic<br />
1-P36 Reclamation <strong>of</strong> Calcium Sulphate Sludges by Sulphate-Reducing<br />
Bacteria .................................................................................................................1.56<br />
Alena Luptáková, Mária Kušnierová<br />
1-P37 Bioleaching <strong>of</strong> Antimony Mineralsby Bacteria Acidithiobacillus<br />
and Desulfovibrio ...............................................................................................1.57<br />
Alena Luptáková, Eva Mačingová, Jana Jenčárová<br />
1-P38 Biological-Chemical regeneration <strong>of</strong> Desulphurization Sorbents<br />
Based on Zinc Ferrite ...........................................................................................1.58<br />
Alena Luptáková, Mária Kušnierová, Vladimír Šepelák
Table <strong>of</strong> Content<br />
1-P39 Single Analyte Zone Splitting in CZE: Origin, Appearance and<br />
Remedy ..................................................................................................................1.59<br />
Z. Malá, P. Gebauer, P. Boček<br />
1-P40 Chlorophyll Bleaching by UV-Irradiation in Solvents and Isolated<br />
Photosynthetic Organelles ..................................................................................1.60<br />
Dejan Marković, Jelena Zvezdanović<br />
1-P41 Environmental Risk Assessment, Transport <strong>of</strong> Dangerous Goods<br />
and Possible Accidents ........................................................................................1.61<br />
Jana Victoria Martincová and Ivan Mašek<br />
1-P42 Causes <strong>of</strong> Accidents Regarging Transport <strong>of</strong> Dangerous Goods .................1.62<br />
J. V. Martincová, I. Mašek, J. Martinec<br />
1-P43 Development <strong>of</strong> a new Educational Programme “Protection <strong>of</strong><br />
Population” ...........................................................................................................1.63<br />
Ivan Mašek, Pavel Častulík, , Otakar Mika<br />
1-P44 Can we Ensure Safer Environmental for Curtural Heritage? ........................1.64<br />
Ivan Mašek, Zdena Rosická<br />
1-P45 Risks Factors <strong>of</strong> Social Development for Management .................................1.65<br />
Ivan Mašek, Jaromír Novák<br />
1-P46 Actual Problems <strong>of</strong> chemical Disarmanet: Chemical Weapons<br />
Convention after the 2nd Review Conference .................................................1.66<br />
Jiří Matoušek<br />
1-P47 Protection <strong>of</strong> Population in The Czech Republic and its<br />
Perspectives ...........................................................................................................1.67<br />
Otakar J. Mika, Lenka Fišerová<br />
1-P48 Application <strong>of</strong> DGT Method for Assesment <strong>of</strong> Availability <strong>of</strong><br />
Heavy Metals to Plants .......................................................................................1.68<br />
Z. Mládková, K. Pešková, B. Dočekal, H. Dočekalová, P. Škarpa<br />
1-P49 Spectrophotometric Microdetermination <strong>of</strong> Phosphate Based on<br />
the Ion Association Complex with Rhodamine B in Water ...........................1.69<br />
Martin Moos, Lumír Sommer<br />
1-P50 Determination <strong>of</strong> Uranium by ICP-AES in the Absence and<br />
Presence <strong>of</strong> Preconcentration on Macroporous Sorbents ..............................1.70<br />
Martin Moos, Urbánková Kristýna, Lumír Sommer
Table <strong>of</strong> Content<br />
10<br />
1-P51 Determination <strong>of</strong> halogenated Pollutants in Environmental<br />
Samples by using GC-ECD after SPME-GC Separation ...............................1.71<br />
F. Moreno, J. M. Manso, T. García-Barrera, J. L. Gómez-Ariza<br />
1-P52 Simultaneous Speciation <strong>of</strong> Selenium and Mercury in Biological<br />
Samples by using a Column Swithching Systém with Liquid<br />
Chromatography Coupled to ICP-MS .............................................................1.72<br />
F. Moreno, T. García-Barrera, J. L. Gómez-Ariza<br />
1-P53 Volatile Organic Substances Present in Spices and Spruce Needles ............1.73<br />
Ludmila Mravcová, Milada Vávrová, Josef Čáslavský, Michaela Stoupalová,<br />
Ilona Hlaváčková, Hana Vítečková<br />
1-P54 Changes in Carotenoids Pattern in Mougeotia sp. Algae Induced<br />
By High Light Stress ............................................................................................1.74<br />
Edward Muntean, Victor Bercea, Nicoleta Muntean, Nicolae Dragoş<br />
1-P55 Simultaneous Ion Chromatographic Determination <strong>of</strong> Anions and<br />
Cations in Surface Waters From Fizes Valley ...................................................1.75<br />
Muntean Edward, Mihăiescu Tania, Muntean Nicoleta, Mihăiescu Radu<br />
1-P56 Strategies to Reduce Detection Limits (LODs) in the Analysis <strong>of</strong><br />
Brominated Flame Retardants (BFRs) in Environmental Samples ...............1.76<br />
Michaela Nápravníková, Jana PulkrabováPetra Hrádková, Jana Hajšlová,<br />
Jan Poustka, Dita Svobodová<br />
1-P57 Chemicals and Energy Form Biomass ..............................................................1.77<br />
Ľudovít Polívka, Eva Ürgeová<br />
1-P58 Simultaneous Determination <strong>of</strong> Mercury, Lead and Cadmium in<br />
Aqueous Samples Using Picric Acid-Modified Carbon Paste Electrode .....1.78<br />
Jose H. Santos, Sean Gerard Ward<br />
1-P59 Detection <strong>of</strong> Foreign Organic Substances in Water and Biological<br />
samples ..................................................................................................................1.79<br />
E. Savelieva, N. Goncharov, N. Koryagina, N. Khlebnikova, A. Radilov<br />
1-P60 Determination <strong>of</strong> Sulfonamides in water using Multiwalled<br />
Carbon Nanotubes Solid Phase Extraction and HPLC with<br />
Fluorescence Detector .........................................................................................1.80<br />
Stefania Simon, Dan Lupu, Alexandru R. Biris , Constantin Bele<br />
1-P61 Microbiologial Remediation <strong>of</strong> Metal-Contaminated Soil .............................1.81<br />
Valéria Snopková, Katarína Jablonovská
Table <strong>of</strong> Content<br />
1-P62 Distribution <strong>of</strong> Phthalic Acid Esters (DEPH, DBS) in Chicken<br />
Tissues and Organs ..............................................................................................1.82<br />
Vlasta Stancová, Lenka Krátká, Alžběta Jarošová, Jiří Harazim, Pavel Suchý<br />
1-P63 Purification Process Influence on the PAH Determination in Real<br />
Soil Samples ..........................................................................................................1.83<br />
M. Stoupalová, M. Vávrová, L. Mravcová, V. Večerek<br />
1-P64 The Optimalisation <strong>of</strong> SPME Method for Determination <strong>of</strong><br />
Essential Oils in Spice ..........................................................................................1.84<br />
M. Stoupalová, H. Pleskačová, M. Vávrová, L. Mravcová, V. Večerek<br />
1-P65 DTA and Fluorescence Spectra <strong>of</strong> Humic Acids as Indicators <strong>of</strong><br />
Human Influence on Soil ....................................................................................1.85<br />
Nora Szombathová, Jörg Luster, Božena Debska, Anton Zaujec,Milan<br />
Macák, Erika Tobiašová, Juraj Chlpík, Vladimír Šimanský<br />
1-P66 Evaluation <strong>of</strong> Heavy Metals Mobility in the Sediments from the<br />
Hnilec River, Slovakia ..........................................................................................1.86<br />
Oľga Šestinová, Ján Brehuv, Jozef Hančuľák ,Tomislav Špaldon, Erika<br />
Fedorová<br />
1-P67 Sulphates Reduction from Waste Water <strong>of</strong> Old Mine Loads .........................1.87<br />
T. Špaldon, J. Brehuv, J. Hančuľák, E. Fedorová, O. Šestinová<br />
1-P68 Arsenic Removal From Water by Synthetic Akaganeite ................................1.88<br />
Katarína Štefušová, Miroslava Václavíková, George P. Gallios, Štefan<br />
Jakabský<br />
1-P69 The EPR Study <strong>of</strong> Particulate Matter .................................................................1.89<br />
Nadežda Števulová, Adriana Eštoková, Pavel Stopka<br />
1-P70 Selection <strong>of</strong> Packing Materials for Bi<strong>of</strong>ilter Development .............................1.90<br />
Iveta Štyriaková, Alexandra Vašková<br />
1-P71 Antibiotic Effects Of The Naphtoquinonic Derivatives On Gram-<br />
Positive And Gram-Negative Germs ................................................................1.91<br />
Radu Tamaian, Nadia Păun, Andreea Iordache, Raluca Vremeră, Ştefania<br />
Broscăţean<br />
1-P72 Practical Application in Agriculture <strong>of</strong> the Magnesium Products<br />
Industry Waste .....................................................................................................1.92<br />
Lidia Taubert, Hortensia Rădulescu, S. A. Kiss, R. Kastori, Ecaterina<br />
Princz, Éva Stefanovits-Bányai<br />
11
Table <strong>of</strong> Content<br />
12<br />
1-P73 Possibilities <strong>of</strong> Objective Odorisation Control <strong>of</strong> Natural Gas ......................1.93<br />
Daniel Tenkrát, Ondřej Prokeš, František Humhal<br />
1-P74 Contamination <strong>of</strong> Soil and Alimentary wheat in Zemplínska<br />
Polluted Area ........................................................................................................1.94<br />
Ján Tomáš, Juraj Čéry, Ladislav Lahučký, Janette Musilová<br />
1-P75 Determination <strong>of</strong> Changes in Soil Organic Matter Content through<br />
Carbon and Nitrogen Labile Fractions ..............................................................1.95<br />
Tomáš Tóth, Erika Tobiašová, Vladimír Šimanský<br />
1-P76 Distribution <strong>of</strong> Heavy Metals in Soil .................................................................1.96<br />
Tomáš Tóth, Alena Vollmannová, Tomáš Ján, Peter Lazor<br />
1-P77 Separation and Preconcentration <strong>of</strong> Arsenic, Antimony, Selenium<br />
and Tellurium on Modified Silicagels for their Determination by<br />
ICP-AES .................................................................................................................1.97<br />
Kristýna Urbánková, Lumír Sommer, Martin Moos<br />
1-P78 Multicomponent Microdetermination <strong>of</strong> Arsenic, Antimony,<br />
Tellurium, Selenium Besides <strong>of</strong> Thallium by ICP-MS in Waters ...................1.98<br />
Kristýna Urbánková, Jiří Machát, Lumír Sommer<br />
1-P79 Treating Wastewater by Using <strong>of</strong> Bioceamic Filters .......................................1.99<br />
A. Vaskova, I. Styriakova, D. Kupka, V. Snopkova<br />
1-P80 Selected MUSK Compounds in Abiotic and Biotic Samples .......................1.100<br />
M. Vávrová, D. Štenclová, E. Blahová, J. Mareš, M. Mášová, J. Čáslavský<br />
1-P81 Determination <strong>of</strong> Surfactants Included in Sewage Water ...........................1.101<br />
Milada Vávrová, Lenka Langová, Helena Zlámalová Gargošová, Kristýna<br />
Kubíčková, Vladimír Večerek<br />
1-P82 Examination <strong>of</strong> the Mutual Interaction <strong>of</strong> Heavy Metals in Course<br />
<strong>of</strong> Adsorption from Model Solutions ..............................................................1.102<br />
Ján Vereš, Tomáš Bakalár, Milan Búgel, Martin Sisol<br />
1-P83 Fungicidal Effect <strong>of</strong> Printed Titanium Dioxide Layers .................................1.103<br />
Mária Veselá, Michal Veselý, Petr Dzik,Jana Chomoucká, Lenka Šupinová<br />
1-P84 Photocatalytic Disinfection <strong>of</strong> Water Using Ag/TiO 2 ....................................1.104<br />
Mária Veselá, Michal Veselý, Jana Chomoucká, Michaela Lipenská
Table <strong>of</strong> Content<br />
1-P85 Laboratory Study <strong>of</strong> Arsenic Mobility in Stream Sediments and<br />
Impoundment Material using Column Experiments ..................................1.105<br />
Veronika Veselská, Edgar Hiller<br />
1-P86 Antibiotics in the Environment ..........................................................................1.106<br />
H. Vítečková, L. Vydrová, M. Vávrová, L. Mravcová<br />
1-P87 The Fluorimetric Determination <strong>of</strong> Aluminium, Gallium and<br />
Indium with 8-Hydroxyquinoline-5-sulphonic acid in Aqueous<br />
and Submicellar Medium ..................................................................................1.107<br />
Šimon Vojta, Lumír Sommer<br />
1-P88 Surgical Polyester Fabric Impregnated by Cross-Linked Collagen ............1.108<br />
Lucy Vojtová,Pavel Filka, Josef Jančář<br />
1-P89 Soil Hygiene in Old Environmental Burden Areas .......................................1.109<br />
Alena Vollmannová, Ján Tomáš, Daniel Bajčan, Peter Kováčik<br />
1-P90 EPR Study on Photoinduced Processes <strong>of</strong> Novel Quinolone<br />
Derivatives ..........................................................................................................1.110<br />
Zuzana Vrecková, Vlasta Brezová, Maroš Bella, Viktor Milata<br />
1-P91 The Boron in Kraft Pulp Mill and Influence in Waste Water.................... 1.111<br />
Milan Vrška, Eva Gemzicka,<br />
1-P92 Contents <strong>of</strong> Different Fractions <strong>of</strong> Sulphur in Slovakia Soils ......................1.112<br />
Anton Zaujec, Lýdia Jedlovská, Melánia Feszterová,<br />
1-P93 Factors Influencing the Sorption Behaviour <strong>of</strong> Herbicide<br />
Acetochlor in Soils and Sediments .................................................................1.113<br />
Lenka Zemanová, Edgar Hiller, Zoltán Krascsenits<br />
1-P94 Ecotoxicological Evaluation <strong>of</strong> the Sludges From Waste Water<br />
Treatment Plants .................................................................................................1.114<br />
Helena Zlámalová Gargošová, Lucie Hellingerová,Milada Vávrová<br />
1-P95 Microwave Desulphurization Of Coal ............................................................1.115<br />
Ingrid Znamenáčová, Michal Lovás, Silvia Čuvanová, Štefan Jakabský<br />
1-P96 The Biological Activity <strong>of</strong> Tetracyclic Diterpene Isolated from The<br />
Slovak Brown Coal .............................................................................................1.116<br />
Anton Zubrik, Andrea Lauková, Alena Gábelová, Zuzana Valovičová, Josef<br />
Cvačka, Ľudmila Turčániová<br />
1
Table <strong>of</strong> Content<br />
Section 2: Food Chemistry & Biotechnology<br />
Lectures<br />
2-L01 Nonsaccharomyces Yeast in Grape Must – Advantege or Spoilage? .............2.5<br />
Emília Breierová, Jaroslava Kaňuchová Pátková, Ingrid Vajciková,<br />
1<br />
2-L02 Approaches to Minimization <strong>of</strong> Acrylamide Level in Foods...........................2.6<br />
Zuzana Ciesarová<br />
2L-03 Solid State Fermentation as a Tool for Preparation <strong>of</strong> Bioproducts<br />
Enriched with Polyunsaturated Fatty Acids ......................................................2.7<br />
Milan Čertík, Zuzana Adamechová, Linda Németh<br />
2-L04 Emerging Technologies in Food Analysis .........................................................2.8<br />
Jana Hajšlová<br />
2L-05 Physiological Regulation <strong>of</strong> Biotechnological Production <strong>of</strong><br />
Carotenoid Pigments .............................................................................................2.9<br />
Vladimíra Hanusová, Martina Čarnecká, Andrea Halienová, Milan Čertík,<br />
Emília Breierová, Ivana Márová<br />
2-L06 Enzymatic Saccharide Acetylations in Water – Comparation <strong>of</strong><br />
Catalysts ................................................................................................................2.10<br />
Vladimír Mastihuba, Tatiana Kraková, Mária Mastihubová<br />
2-L07 Preparation <strong>of</strong> Bio-Diesel from Tall Oil ............................................................2.11<br />
Radoslav Mikulášik, Ján Cvengroš, Viktor Milata, Martin Polovka, Svetozár<br />
Katuščák, Igor Šurina<br />
2-L08 Artificial Neural Networks in Food Analysis ..................................................2.12<br />
Ján Mocák, Viera Mrázová, Dáša Kružlicová, Filip Kraic<br />
2-L09 Detection <strong>of</strong> Spices‘ Irradiation by Modern Spectroscopic<br />
Techniques .............................................................................................................2.13<br />
Martin Polovka, Milan Suhaj<br />
2-L10 Application Potential <strong>of</strong> Novel GC-HT TOF MS (TRU TOF)<br />
System in Food and Environmental Analysis .................................................2.14<br />
Jakub Schurek, Jana Pulkrabova, Jana Hajslova<br />
2-L11 C<strong>of</strong>ffe as a Source <strong>of</strong> Antioxidants (An EPR Study) ........................................2.15<br />
Andrej Staško, Vlasta Brezová and Anna Šlebodová
Table <strong>of</strong> Content<br />
2-L12 Interactions Between Organic Food Contaminants and Plastic<br />
Packaging Materials ............................................................................................2.16<br />
Peter Šimko, Božena Skláršová, Peter Šimon, B. Drobná<br />
2-L13 Analysis <strong>of</strong> Fusarium Mycotoxins, Critical Assessment ...............................2.17<br />
Zachariasova Milena, Hajslova Jana, Poustka Jan, Kostelanska Marta,<br />
Krplova Alexandra, Vaclavik Lukas<br />
Posters<br />
2-P001 Determination <strong>of</strong> β-Carotene in the Gelatin Capsule .....................................2.21<br />
B. Altangerel, Z. Kolajova, D. Kramarova, O. Rop, I. Hoza<br />
2-P002 Determination <strong>of</strong> β-Carotene in Tomato by High Performance<br />
Liquid Chromatography with Electrochemical Detector ...............................2.22<br />
B. Altangerel, P. Vojtiskova, D. Kramarova, , O. Rop, I. Hoza<br />
2-P003 Protective Effect <strong>of</strong> Tomatoes Powder in Oxidative Stress Induced<br />
by Thyroid Disfunctions ....................................................................................2.23<br />
Sanda Andrei, Adela Joanta, Adela Pintea, M. Merca Sarlea<br />
2-P004 Thermophilic Bacteria Application to Whey Biodegradation .......................2.24<br />
Libor Babák<br />
2-P005 Growth Curves <strong>of</strong> Mixed Thermophilic Bacteria ............................................2.25<br />
Libor Babák, Radka Burdychová, Vlastimil Dohnal<br />
2-P006 Monitoring <strong>of</strong> Acrylamide Levels Using LC-MS/MS: Malts and<br />
Beers .....................................................................................................................2.26<br />
Veronika Bartackova, Lukas Vaclavik, Katerina Riddellova,Jana Hajslova<br />
2-P007 Determination <strong>of</strong> Polycyclic Aromatic Hydrocarbons in Czech<br />
Honeys ...................................................................................................................2.27<br />
Petra Batelková, Ivana Borkovcová,Klára Bartáková, Lenka Vorlová<br />
2-P008 Quantitative Determination <strong>of</strong> Sulfonamide Residues in Chicken<br />
Meat by a New Solid Phase Extraction and HPLC-UV for Detection .........2.28<br />
Constantin Bele, Adela Pintea, Francisc Dulf, Dan Lupu, Alexandru R.<br />
Biris<br />
2-P009 Monitoring <strong>of</strong> Ferulic Acid Content During the Malt Production ................2.29<br />
Sylvie Běláková, Renata Mikulíková, Zdeněk Svoboda, Simona Macuchová<br />
1
Table <strong>of</strong> Content<br />
1<br />
2-P010 Monitoring <strong>of</strong> Sensorially Active Sulphur Compounds in Malt<br />
and Beer ................................................................................................................2.30<br />
Sylvie Běláková, Renata Mikulíková, Zdeněk Svoboda, , Simona Macuchová<br />
2-P011 Content <strong>of</strong> Strobilurin Fungicides in Barley Malt and Beer ..........................2.31<br />
Sylvie Běláková, Renata Mikulíková, Zdeněk Svoboda, Simona Macuchová<br />
2-P012 The Effect <strong>of</strong> Fermentation Conditions on the Yeast Aroma Pr<strong>of</strong>ile ............2.32<br />
Emília Breierová, Kornélia Nemcová, Jaroslava Kaňuchová Pátková, Ingrid<br />
Vajciková<br />
2-P013 Biogenic Amines Reduction by Probiotic L. casei During Ripening<br />
<strong>of</strong> Fermented Sausages ........................................................................................2.33<br />
Radka Burdychová, Vlastimil Dohnal, Petra H<strong>of</strong>erková, Pavla Sládková<br />
2-P014 Testing <strong>of</strong> Different Sacharomyces Species for the Ability to Sorb<br />
DeoxynivAlenol....................................................................................................2.34<br />
Radka Burdychová<br />
2-P015 Separation <strong>of</strong> Complex Oligosaccharides from Worth and Beer<br />
Using HPLC ..........................................................................................................2.35<br />
Jana Cabálková, Janette Bobáľová<br />
2-P016 Traceability <strong>of</strong> Honey and Olive Oil Origin using SPME–GC×GC–<br />
TOFMS ...................................................................................................................2.36<br />
Tomas Cajka, Katerina Riddellova, Jana Hajslova<br />
2-P018 Extention <strong>of</strong> Asparaginase Application to Acrylamide<br />
Minimization from Potato to Cereal Products ................................................2.37<br />
Zuzana Ciesarová, Kristína Kukurová, Alena Bednáriková<br />
2-P019 Amino Acids Pr<strong>of</strong>ile <strong>of</strong> Selected Wholegrains Important to<br />
Acrylamide Formation in Cereal-based Products ..........................................2.38<br />
Zuzana Ciesarová, Kristína Kukurová, Alena Bednáriková, Peter Hozlár<br />
2-P019 Characterization <strong>of</strong> Beta-Carotene Enriched Biomass Production<br />
by Red Yeasts ........................................................................................................2.39<br />
Martina Čarnecká, Andrea Hároniková, Terezie Dvořáková, Andrea<br />
Halienová, Ivana Márová, Emília Breierová<br />
2-P020 Monitoring <strong>of</strong> Polycyclic Aromatic Hydrocarbons and Pesticides<br />
Occurring in Oils and Fish Products .................................................................2.40<br />
Lucie Drábová, Marie Suchanová,Vladimír Kocourek, Jana Hajšlová
Table <strong>of</strong> Content<br />
2-P021 Biogenic Amines in Cheeses and Human Health ...........................................2.41<br />
Eva Dudriková, Zuzana Dičáková<br />
2-P022 Phytosterol and Fatty Acid Pr<strong>of</strong>ile <strong>of</strong> Four Edible Functional Oils<br />
Processed in Romania .........................................................................................2.42<br />
Francisc Vasile Dulf, Carmen Socaciu, Constantin Bele, Adela Pintea,<br />
Mihaela L. Ungureşan<br />
2-P023 Antioxidant Activity <strong>of</strong> Flavanols From Grape Seed Extracts ......................2.43<br />
Rugina Dumitrita, Simona Vicas, Carmen Momeu, Carmen Socaciu<br />
2-P024 Influence <strong>of</strong> Long-Term Storage Onditions on Antioxidant and<br />
Other Active Component Content in Several Sorts <strong>of</strong> Apples .......................2.44<br />
Kateřina Duroňová, Kateřina Pařilová, Andrea Halienová, Jitka Dvořáková,<br />
Radka Kočí, Jan Goliáš, Ivana Márová<br />
2-P025 Content <strong>of</strong> Polyphenols and Antiradical Activity <strong>of</strong> bee Pollen ..................2.45<br />
Katarína Fatrcová-Šramková, Janka Nôžková, Magda Máriássyová,<br />
Miroslava Kačániová, Eva Dudriková<br />
2-P026 Reduction Power, Polyphenols Content and Antimicrobial<br />
Activity <strong>of</strong> Honey ...............................................................................................2.46<br />
Katarína Fatrcová-Šramková, Janka Nôžková, Miroslava Kačániová, Magda<br />
Máriássyová, Eva Dudriková<br />
2-P027 omparison <strong>of</strong> pectate hydrolases from parsley root cells ...............................2.47<br />
D. Flodrová, E. Stratilová, S. Garajová and J. Omelková<br />
2-P028 Mechanism <strong>of</strong> Bi Bi Reaction <strong>of</strong> Xyloglucan Endotransglycosylase<br />
(XET) from Petroselinum Crispum Roots .........................................................2.48<br />
S. Garajová, D. Flodrová, V. Farkaš and E. Stratilová<br />
2-P029 Multispeciation in Wines by Orthogonal Chromatograpy Coupled<br />
to UV, Refraction Index and ICP-MS Detectors ...............................................2.49<br />
T. García-Barrera, J. L. Gómez-Ariza<br />
2-P030 Identification <strong>of</strong> Cu-Metalloproteins in Mus Musculus Brain<br />
Extracts by Reversed-Phase HPLC Coupled with ICP-MS and ESI-<br />
Qq-MS ....................................................................................................................2.50<br />
T. García-Barrera, M. Gónzalez-Fernández, J. López-Barea, C. Pueyo and J.<br />
L. Gómez-Ariza<br />
1
Table <strong>of</strong> Content<br />
1<br />
2-P031 Analysis <strong>of</strong> Flavor Compounds in Fruits by GC with two<br />
Dimensional Detection by FID and MS ............................................................2.51<br />
T. García-Barrera, R. Jara Biedma, J. L. Gómez-Ariza<br />
2-P032 Content <strong>of</strong> Cadmium in selected Meat Products Supplied on the<br />
Slovak Marked .....................................................................................................2.52<br />
Jozef Golian, Branislav Šiška, Robert Toman, Michal Bošiak<br />
2-P033 Chiral Speciation <strong>of</strong> Iodine in Thyroid Hormones by Using HPLC-<br />
MS/MS and HPLC-ICP-MS .................................................................................2.53<br />
J. L. Gómez-Ariza, E. Gómez de las Heras, T. García-Barrera<br />
2-P034 Development <strong>of</strong> a rapid arsenic Speciation Procedure for Marine<br />
Origin Food based on Ultrasound Probe Extraction and HPLC-<br />
UV-HG-AFS .........................................................................................................2.54<br />
J. L. Gómez-Ariza, M. Contreras-Acuña, T. García-Barrera<br />
2-P035 Comparison <strong>of</strong> Proteome and Metabolome Changes in Stressed<br />
Yeast Strains Rhodotorula Glutinis and Rhodotorula Rubra ........................2.55<br />
Andrea Halienová, Ivana Márová, Zbyněk Zdráhal, Hana Konečná, Martina<br />
Čarnecká, Kateřina Pařilová, Emília Breierová<br />
2-P036 (1→3)(1→4)-β-D-Glucan: Variability and Factors Affecting Its<br />
Content in Oat Grain ...........................................................................................2.56<br />
Michaela Havrlentová, Ján Kraic, Milan Čertík<br />
2-P037 Extraction and Determination <strong>of</strong> Flavonoids in Plant Materials ..................2.57<br />
Barbora Hohnová , Pavel Karásek, Milena Vespalcová<br />
2-P038 Monitoring <strong>of</strong> Pesticide Residues in Commodities Used for Baby<br />
Food Production ...................................................................................................2.58<br />
Jiří Honzíček, Jana Hajšlová, Vladimír Kocourek<br />
2-P039 Trichosporon Cutaneum: Cell Adhesion on Cellophane Surface .................2.59<br />
J. Hrdinová, T. Krulikovská,V. Jirků, O. Schreiberová, A. Čejková, J. Masák<br />
2-P040 Seasonal Changes <strong>of</strong> Rubisco Activity and its Content in Norway<br />
Spruce Exposed to Ambient and Elevated CO 2 Concentrations ...................2.60<br />
Miroslav Hrstka, Lucie Zachová, Otmar Urban<br />
2-P041 Enzyme Degradation <strong>of</strong> LIPIDS and its Application in lipid<br />
–Containing Wastewater ...................................................................................2.61<br />
Kateřina Illková, Jiřina Omelková, Bohumila Vlčková
Table <strong>of</strong> Content<br />
2-P042 Gas Chromatography-Mass spectrometry Characterization <strong>of</strong> Sea<br />
Buckthorn ..............................................................................................................2.62<br />
Andreea Iordache, Radu Minea, Monica Culea, Camelia Lehene<br />
2-P043 Rapid Authentification <strong>of</strong> Natural Juices by GC-MS .....................................2.63<br />
Andreea Iordache, Monica Culea, Onuc Cozar<br />
2-P044 Comparative Extraction Methods <strong>of</strong> some Biologic Active<br />
Compounds in Herbs .........................................................................................2.64<br />
Andreea Iordache, Monica Culea, Onuc Cozar<br />
2-P045 Bioremediation <strong>of</strong> Botton Sediments using Bacillus Megaterium<br />
and Bacillus Cereus .............................................................................................2.65<br />
Katarina Jablonovska, Iveta Styriakova<br />
2-P046 Biosorbents Preparation for Heavy Metals Removing from Waters ............2.66<br />
Jana Jenčárová, Alena Luptáková<br />
2-P047 Genotype Variability <strong>of</strong> Fatty Acids in Cereal Grains ....................................2.67<br />
Dalibor Ješko, Milan Čertík<br />
2-P048 Preliminary Simultaneous Studies on the Antifungal Activity<br />
and Chemical Composition <strong>of</strong> the Hexane Extract <strong>of</strong> the Brazilian<br />
Chenopodium Ambrosioides L. ..........................................................................2.68<br />
Gulab Newandram Jham, Carolina Marangon Jardim, Onkar Dev Dhingra<br />
and Marcelo Moreira Freire<br />
2-P049 Evaluation <strong>of</strong> antioxidant and antimicrobial effects <strong>of</strong> natural<br />
honeys ....................................................................................................................2.69<br />
Miroslava Kačániová, Martina Fikselová, Soňa Felšöciová, Vladimíra<br />
Kňazovická, Katarína Fatrcová-Šrámková, Janka Nôžková<br />
2-P050 Combined Technique LC/MS in Analyses <strong>of</strong> Antioxidant<br />
Compounds ...........................................................................................................2.70<br />
Radka Kočí, Marie Trčková, Lukáš Müller, Ivana Márová<br />
2-P051 Influence <strong>of</strong> Chemical Treatment on Fusarium Toxins in Barley<br />
Harvested 2005-2007 ............................................................................................2.71<br />
Jana Kohoutková, Kateřina Lancová, Alexandra Krplová, Ondřej Lacina,<br />
Jana Hajšlová, Jana Marková, Jaroslava Ehrenbergerová<br />
2-P052 Monitoring <strong>of</strong> Acrylamide in Foods : “The Project on Dietary<br />
Exposure <strong>of</strong> the Czech Population to Selected Chemical Substances” ........2.72<br />
J. Kolářová, S. Saláková, I. Řehůřková, J. Ruprich<br />
1
Table <strong>of</strong> Content<br />
20<br />
2-P053 Trans Fatty Acids in Diet <strong>of</strong> the Czech Population During year<br />
2007 .........................................................................................................................2.73<br />
J. Kolářová, J. Hradilová, I. Řehůřková, J. Ruprich, S. Saláková, D.<br />
Pečinková<br />
2-P054 The Monitoring <strong>of</strong> Dietary Exposure <strong>of</strong> Czech Population to<br />
Persistent Organic Pollutants ............................................................................2.74<br />
Jana Kolářová, Sylva Saláková, Irena Řehůřková, Jiří Ruprich<br />
2-P055 Occurrence <strong>of</strong> Fusarium Mycotoxins and their Conjugated Forms<br />
in Cereal-based Foods ........................................................................................2.75<br />
Marta Kostelanská, Jana Hajšlová, Milena Zachariášová, Alexandra<br />
Krplová, Jan Poustka, Jana Kohoutková<br />
2-P056 Lignans in Flaxseeds – LC-MS/MS Determination .........................................2.76<br />
Anna Krajcova, Vera Schulzova, Jana Hajslova, Zuzana Zakova, Marie<br />
Bjelkova<br />
2-P057 The Occurence <strong>of</strong> PhthalicAcid Esters in Selected Feedstuffs .......................2.77<br />
Lenka Krátká, Alžbeta Jarošová, Jana Malyszová, Vlasta Stancová, Jiří<br />
Harazim<br />
2-P058 New Approach in Analysis <strong>of</strong> Fusarium Mycotoxins and their<br />
“Masked” Forms: Immunoaffinity Column Clean-up ...................................2.78<br />
A. Krplova, A. Kostelanska, M. Zachariasova, J. Hajslova and J. Kohoutkova<br />
2-P059 The effect <strong>of</strong> cell adhesion on polutant biodegradation ................................2.79<br />
Tereza Krulikovská , Olga Schreiberová, Jitka HrdinováJan Masák, Alena<br />
Čejková, Vladimír Jirků<br />
2-P060 Categorization <strong>of</strong> Olive Oils ..............................................................................2.80<br />
Dáša Kružlicová, Ján Mocák, Ernst Lankmayr<br />
2-P061 The Proteomic Analysis <strong>of</strong> Barley Albumins And Globulins ......................2.81<br />
Markéta Laštovičková and Janette Bobáľová<br />
2-P062 Comparative Study <strong>of</strong> The Protein Composition Induced By<br />
Malting <strong>of</strong> Two Barley Varieties .........................................................................2.82<br />
Markéta Laštovičková, Martina Šopíková, and Janette Bobáľová<br />
2-P063 fatty acids like markers <strong>of</strong> processed cheese changes during<br />
storage ....................................................................................................................2.83<br />
Blanka Loupancová, Eva Vítová, Hana Štoudková, František Buňka
Table <strong>of</strong> Content<br />
2-P064 Determination <strong>of</strong> Selected Antioxidant Enzymes in Barley and<br />
Malt ........................................................................................................................2.84<br />
S. Macuchová, I. Márová, R. Mikulíková<br />
2-P065 Fat content and its quality in rapeseed (Brassica napus l) during<br />
storage ....................................................................................................................2.85<br />
Ján Mareček, Martina Fikselová, Helena Frančáková, Zdenka Muchová<br />
2-P066 Analysis <strong>of</strong> Active Substances in Honey – a Contribution to<br />
Honey Authenticity .............................................................................................2.86<br />
Ivana Márová, Zuzana Jelénková, Kateřina Duroňová, Petra Ždánská,<br />
Veronika Ehrenbergerová<br />
2-P067 Antioxidant and Antimutagenic Activity <strong>of</strong> Dried Fruit, Fruit Teas<br />
and Cereal Fruit Products ..................................................................................2.87<br />
Ivana Márová, Michaela Barošová, Martina Tomková, Hedvika Vondráčková,<br />
Kateřina Duroňová, Radka Kočí<br />
2-P068 Charactzerization <strong>of</strong> „Czech Beer“ – a Pilot Study ........................................2.88<br />
Ivana Márová, Renata Mikulíková, Zbyněk Zdráhal, Hana Konečná,<br />
Kateřina Pařilová, Andrea Halienová<br />
2-P069 Tocopherol and Fatty Acid Contents <strong>of</strong> Selected Romanian Cereal<br />
Grains .....................................................................................................................2.89<br />
Cristian Tudor Matea, Ioan Has, Simona Ifrim, Constantin Bele<br />
2-P070 Monitoring <strong>of</strong> Barley Starch Amylolysis by Gravitational Field<br />
Flow Fractionation and MALDI-TOF/TOF MS ................................................2.90<br />
Karel Mazanec and Janette Bobáľová<br />
2-P071 Wood Biomass in Cosmetics Industry ..............................................................2.91<br />
Radoslav Mikulášik, Jana Kosinková, Aleš Ház, Jarmila Hojerová, Svetozár<br />
Katuščák, Igor Šurina<br />
2-P072 Termogravimetric Analysis <strong>of</strong> Liquid Pyrolysis Products <strong>of</strong> Wood<br />
Biomass .................................................................................................................2.92<br />
Radoslav Mikulášik, Aleš Ház, Peter Šimon, Svetozár Katuščák, Igor Šurina<br />
2-P073 Analytical Meassurements and Phisicochemical Parametrs<br />
Determination in Strawberries and Raspberries Enhance Production .......2.93<br />
Fernando R. Moreno, A. Gago, T. García-Barrera, J. L. Gómez-Ariza<br />
2-P074 Multivariate Methods in Food Analysis ...........................................................2.94<br />
Viera Mrázová, Ján Mocák, Katja Šnuderl, Ernst Lankmayr<br />
21
Table <strong>of</strong> Content<br />
22<br />
2-P075 Phytochemical Study <strong>of</strong> Flavonoides from Melampyrum<br />
Cristatum L. Species ............................................................................................2.95<br />
M. F. Munteanu, L. Vlase, C. Toma<br />
2-P076 The Influence <strong>of</strong> Choice Factors on Fermentation <strong>of</strong> Red Wine ...................2.96<br />
J. Omelková, L. Zechmiestrová<br />
2-P077 Optimalization <strong>of</strong> Cultivation Media and Hydroxylase Enzyme<br />
Production by Aureobasidium Pullulans .........................................................2.97<br />
J. Omelková, S. Matalová, I. Šimkovic<br />
2-P078 Influence <strong>of</strong> Modified Biocomposites on Production <strong>of</strong><br />
Extracellular Polysaccharides by Immobilized Aureobasidium pullulans ..2.98<br />
V. Ondruška, I. Márová, J. David, L. Vojtová<br />
2-P079 Fatty Acids Distribution in the Lipid Fractions <strong>of</strong> Calendula<br />
<strong>of</strong>ficinalis l. Seeds Oil ...........................................................................................2.99<br />
Adela Pintea, Francisc Dulf, Constantin Bele, Sanda Andrei<br />
2-P080 Lipid Peroxidation Products in Plasma <strong>of</strong> Patients with Chronic<br />
Pancreatitis ..........................................................................................................2.100<br />
M. Podborská, A. Lojek, L. Kubala, R. Buňková, I. Márová, A. Ševčíková,<br />
J. Trna, P. Dítě<br />
2-P081 The Effect <strong>of</strong> Lipophilicity on Antifungal Activity <strong>of</strong> Some 2-<br />
Amino and 2-Methylbenzimidazole derivatives ..........................................2.101<br />
Sanja O. Podunavac-Kuzmanović, Dragoljub D. Cvetković<br />
2-P082 QSAR Models for Predicting the Antibacterial Activity <strong>of</strong> Some<br />
1-Benzylbenzimidazole Derivatives ................................................................2.102<br />
Sanja O. Podunavac-Kuzmanović, Dragoljub D. Cvetković, D.Barna<br />
2-P083 Antimicrobial Investigations <strong>of</strong> Nickel(II) Complexes With Some<br />
1-Benzylbenzimidazole Derivatives ................................................................2.103<br />
Sanja O. Podunavac-Kuzmanović, Dragoljub D. Cvetković<br />
2-P084 Cheese Species Identification by Multivariate Analysis <strong>of</strong><br />
Elemental Data ...................................................................................................2.104<br />
Martin Polovka, Milan Suhaj, Mária Koreňovská
Table <strong>of</strong> Content<br />
2-P085 Optimalization <strong>of</strong> Method for Quantification <strong>of</strong> Streptococcus<br />
Mutans to Dental Materials ..............................................................................2.105<br />
Ilona Prudíková, S. Matalová, Jiřina Omelková, Josef Jančář<br />
2-P086 BFRs Pr<strong>of</strong>iles in Breast Milk and Adipose Tissue Samples: Case<br />
Study Concerned with Czech Population ......................................................2.106<br />
Jana Pulkrabová, Petra Hrádková,Michaela Nápravníková, Jana Hajšlová,<br />
Jan Poustka<br />
2-P087 Iodine in the Czech Market Milk ....................................................................2.107<br />
Jana Řeháková, Radek Kavřík, Irena Řehůřková, Jiří Ruprich<br />
2-P088 Monitoring <strong>of</strong> Total Mercury Content in Foods Consumed by the<br />
Czech Population During 1994–2005 ...............................................................2.108<br />
J. Řeháková, I. Řehůřková, J. Ruprich, J. Kalvodová, D. Matulová<br />
2-P089 The Influence <strong>of</strong> Surface Characteristics on Bacterial Cell<br />
Adhesion .............................................................................................................2.109<br />
Olga Schreiberová, Tereza Krulikovská, Jitka Hrdinová, Jan Masák, Alena<br />
Čejková, Vladimír Jirků<br />
2-P090 HPLC Analysis <strong>of</strong> Flavonoids from Satureja Hortensis L. ..........................2.110<br />
Maria-Loredana Soran, Bros Ildiko, Constantin Bele, Emanoil Surducan,<br />
Vasile Surducan, Cristian Tudoran<br />
2-P091 Selection <strong>of</strong> Suitable Microorgamisms for Preparation <strong>of</strong> Lactic<br />
Acid Fermented Cabbage Juice ........................................................................2.111<br />
Ivana Šimonová, Jolana Karovičová, Mária Greifová, Zlatica Kohajdová<br />
2-P092 Using <strong>of</strong> Hydrocolloids for Delaing Staling <strong>of</strong> Bakery Products ................2.112<br />
Ivana Šimonová, Zlatica Kohajdová, Jolana Karovičová<br />
2-P093 Influence <strong>of</strong> Ph on the Rheology Properties <strong>of</strong> Tomato Ketchups ..............2.113<br />
Ivana Šimonová, Jarmila Lehkoživová, Jolana Karovičová, Jarmila Hojerová,<br />
Zlatica Kohajdová,<br />
2-P094 Distribution <strong>of</strong> Diazinon in Various Tissues and its Effect on<br />
Serum Cholinesterase after an Intraperitoneal Administration .................2.114<br />
Branislav Šiška, Jozef Golian, Robert Toman, Andrea Krajčírová<br />
2-P095 Identification <strong>of</strong> Bacterial Strains <strong>of</strong> Species Lactococcus Lactis in<br />
Hard Cheeses using PCR ..................................................................................2.115<br />
A. Španová , J. Herzogová, B. Rittich<br />
2
Table <strong>of</strong> Content<br />
2<br />
2-P096 Identification <strong>of</strong> Bacterial Strains <strong>of</strong> Species Streptococcus<br />
thermophilus using PCR ...................................................................................2.116<br />
A. Španová, M. Tycová, B. Rittich<br />
2-P097 Study <strong>of</strong> Oxidation Stability <strong>of</strong> Selected Vegetable Oils ...............................2.117<br />
Hana Štoudková, Monika Maxová, Jiří Kučerík, Jana Zemanová<br />
2-P098 Antioxidant Properties <strong>of</strong> Grape Skins Extracts Investigated by<br />
EPR and UV-VIS Spectroscopy .........................................................................2.118<br />
Lenka Šťavíková , Martin Polovka<br />
2-P099 The Impact <strong>of</strong> Fermentaion Process on Amino Acids Pr<strong>of</strong>ile in<br />
White Wine Veltlínské Zelené ..........................................................................2.119<br />
Lenka Šťavíková, Miroslav Hrstka<br />
2-P100 Characterization <strong>of</strong> Neutral Lipid Composition <strong>of</strong> Nigella Sativa<br />
L. Seeds Oil .........................................................................................................2.120<br />
Claudia-Crina Toma, Adela Pintea, Constantin Bele, Francisc Dulf .<br />
2-P101 Identification <strong>of</strong> Viable Lactobacillus Cell in Fermented Milk<br />
Products. ..............................................................................................................2.121<br />
S. Trachtová, A. Španová, B. Rittich<br />
2-P102 Dynamic <strong>of</strong> Selected Pesticides Applied to Apples Protection<br />
During Pre-Harvest and Post-Harvest Period ...............................................2.122<br />
Jana Urbanova, Ondrej Lacina, Jakub Schurek, Miroslav Lansky and Jana<br />
Hajslova<br />
2-P103 Relationship between Xanthohumol, Polyphenols and flavonoids<br />
content in hop Leaves and Cones with Regard to Cultivar and<br />
Vegetation Period ...............................................................................................2.123<br />
Eva Ürgeová, Peter Kulacs, Ľudovít Polívka<br />
2-P104 Amino Acid Composition <strong>of</strong> Non-Transgenic and Ovalbumine<br />
Expressing Transgenic Alfalfa (Medicago sativa). ........................................2.124<br />
Eva Ürgeová, Juraj Faragó, Miklós Fári, Natália Faragová<br />
2-P105 Sea Buckthorn – Source <strong>of</strong> Vitamin C and Efficient Antioxidant ................2.125<br />
Milena Vespalcová, Dana Vránová, Martin Polovka, Jiřina Endstrasserová,<br />
Vojtěch Řezníček
Table <strong>of</strong> Content<br />
2-P106 Arsenic Speciation in Fish Samples Using High Performance<br />
Liquid Chromatography Coupled with Hydride Generation<br />
Atomic Fluorescence Spectrometry .................................................................2.126<br />
Eva Vitoulová, Blanka Macharáčková, Miroslav Fišera, Olga Čelechovská<br />
2-P107 Comparison <strong>of</strong> Aroma Pr<strong>of</strong>iles <strong>of</strong> Several Types <strong>of</strong> Dark Chocolate ..........2.127<br />
Eva Vítová, Blanka Loupancová, Hana Štoudková, Jana Zemanová, Libor<br />
Babák, Ivana Macků<br />
2-P108 Monitoring <strong>of</strong> Changes in Population <strong>of</strong> Yeasts During<br />
Fermentation <strong>of</strong> Grape Must. ...........................................................................2.128<br />
Dana Vránová,Michaela Zdeňková, Renata Vadkertiová<br />
2P109 Study <strong>of</strong> Stability <strong>of</strong> Cleansers Based on Active Chlorine............................2.129<br />
J. Zemanova, E. Vitova, M. Dankova, M. Popelkova<br />
2-P110 Vegetable Oils for Cosmetics – Evaluation <strong>of</strong> their Effects on<br />
Human Skin ........................................................................................................2.130<br />
J. Zemanova, H. Stoudkova, E. Vitova<br />
Section 3: Chemistry <strong>of</strong> InorganicMaterials<br />
Lectures<br />
3-L01 Non -Traditional Binders and Composites Tested at the Student<br />
Laboratories <strong>of</strong> the Iinstitute <strong>of</strong> Materials Chemistry, Faculty <strong>of</strong><br />
Chemistry, Brno University <strong>of</strong> Technology ......................................................3.5<br />
Jiří Brandštetr, Jaromír Havlica, Tomáš Opravil, František Šoukal<br />
3-L02 Influence <strong>of</strong> Phosphate Content on Formation <strong>of</strong> Dicalciumsilicate<br />
Modifications .........................................................................................................3.6<br />
Jaromír Havlica, Teodor Staněk, Jan Baráček, Petr Ptáček, František Šoukal<br />
3-L03 The Efficacy <strong>of</strong> Deacidification by Aerosols <strong>of</strong> MgO and Dolomite<br />
Microparticles .........................................................................................................3.7<br />
S. Holubková, M. Jablonský, M. Bajziková, J. Hanus, J. Rychlý, V. Bukovský,<br />
S. Katuscak<br />
3-L04 Distribution <strong>of</strong> Heavy Metals in the Products <strong>of</strong> Magnetic<br />
Separation <strong>of</strong> Siderite Ore From Nižná Slaná ....................................................3.8<br />
Slavomír Hredzák, Michal Lovás, Štefan Jakabský, Dana Gešperová<br />
2
Table <strong>of</strong> Content<br />
2<br />
3-L05 Magnetically Modified Bentonite and Study <strong>of</strong> its Improved<br />
Sorption Properties ................................................................................................3.9<br />
Z. Orolínová, A. Mockovčiaková<br />
3-L06 Reductive Dissolution <strong>of</strong> Ferric Sulfate and Ferric Iron<br />
Oxihydroxides by Acidophilic Heterotrophic Bacteria ..................................3.10<br />
Zuzana Pállová, Daniel Kupka, Alexandra Vašková, Zuzana Orolínová,<br />
Vladimír Šepelák.<br />
3-L07 The Effect <strong>of</strong> Hydrogen on Combustion <strong>of</strong> Natural Gas ...............................3.11<br />
Ondřej Prokeš, Daniel Tenkrát, Aleš Doucek<br />
3-L08 The IR Spectroscopy Study <strong>of</strong> Particle Size Influence on Course <strong>of</strong><br />
Kaolin Dehydroxylation ......................................................................................3.12<br />
Petr Ptáček, Dana Kubátová, Jaromír Havlica, František Šoukal, Tomáš<br />
Opravil<br />
3-L09 Critical Particulates fineness <strong>of</strong> the Air Classification Processes .................3.13<br />
Tomáš Svěrák, Ondřej Kozdas, Vítězslav Frank<br />
3-L10 Determination the Reaction Order for Fast Formation <strong>of</strong> CuS 2 O 3 ................3.14<br />
Mihaela Ligia Ungureşan, Francisc Vasile Dulp<br />
3-L11 Ceramic Petrography <strong>of</strong> the Loštice Pottery ....................................................3.15<br />
Dalibor Všianský, Miroslava Gregerová, Martin Hložek,<br />
Posters<br />
3-P01 Optimalization <strong>of</strong> Lead Sulphide Mechanochemical Synthesis ...................3.19<br />
M. Achimovičová, A. Mockovčiaková, E. Dutková<br />
3-P02 Synthesis <strong>of</strong> Doped Lanthanum Ferrite Perovskites .......................................3.20<br />
Eva Bartoníčková, Jaroslav Cihlář<br />
3-P03 Effect <strong>of</strong> Heat Treatment on the Al + Si Diffusion Coatings on Ni-<br />
Based Alloys ..........................................................................................................3.21<br />
Ladislav Čelko, Lenka Klakurková<br />
3-P04 Chemical Analysis <strong>of</strong> Al and Si Surface Layers on Steels...............................3.22<br />
Pavel Doležal, Ladislav Čelko, Aneta Němcová, Lenka Klakurková<br />
3-P05 Synthesis <strong>of</strong> Belite Cement from Coal Fly Ash ...............................................3.23<br />
Ivana Fiľková, Nadežda Števulová
Table <strong>of</strong> Content<br />
3-P06 Microbiologically influenced corrosion <strong>of</strong> concrete .......................................3.24<br />
Vlasta Harbuľáková, Adriana Eštoková, Nadežda Števulová, Alena<br />
Luptáková<br />
3-P07 Influence <strong>of</strong> Salts Admixtures on Gelation Process <strong>of</strong> Silica ........................3.25<br />
Jaromír Havlica, Petr Ptáček, František Šoukal, Martin Zmrzlý<br />
3-P08 Thaumasite preparation ......................................................................................3.26<br />
Markéta Hermanová, Vítězslav Frank<br />
3-P09 An Application <strong>of</strong> Al-Si Layer on Nickel-Based Superalloys and<br />
their Analysis ........................................................................................................3.27<br />
Martin Juliš, Simona Pospíšilová<br />
3-P10 Alkaline Modified Coal Fly Ash as an Addition to Concrete ........................3.28<br />
Jozef Junák, Nadežda Števulová<br />
3-P11 Elements Interaction Analyses During Preparation <strong>of</strong> Al-Al 3 Ni<br />
Eutectic Composites .............................................................................................3.29<br />
Lenka Klakurková, Ladislav Čelko, Pavel Doležal, Ondřej Man, Karel Němec<br />
3-P12 Magnetic Properties <strong>of</strong> Waste Vitrified in Microwave Furnace.....................3.30<br />
Milota Kováčová, Michal Lovás, Marek Matik, Vladimír Šepelák<br />
3-P13 The use <strong>of</strong> Electrokinetic Potential Measurement for Examination<br />
<strong>of</strong> Kaolinite Decomposition ................................................................................3.31<br />
Dana Kubátová, Petr Ptáček, Jaromír Havlica.<br />
3-P14 Analysis and Interpretation <strong>of</strong> Height Alumina Refractories<br />
Corrosion by Alkali and Vanadium Oxides .....................................................3.32<br />
Tomáš Opravil, Petr Ptáček, Jaromír Havlica,František Šoukal, Michal<br />
Vršecký<br />
3-P15 Measurment <strong>of</strong> Heat <strong>of</strong> Hydratation <strong>of</strong> Roman Cement ...............................3.33<br />
Tomáš Opravil, Petr Ptáček, František Šoukal, Jaromír Havlica<br />
3-P16 FT-IR Spectroscopic Study <strong>of</strong> Portland Cement Hydration ...........................3.34<br />
Tomáš Opravil, Petr Ptáček, Jaromír Havlica, František Šoukal<br />
3-P17 Synthesis <strong>of</strong> Calcium, Magnesium and Zinc Negative Thermal<br />
Expansion LAS Ceramics ....................................................................................3.35<br />
Petr Ptáček, Helena Krejčová, Jaromír Havlica, František Šoukal, Tomáš<br />
Opravil<br />
2
Table <strong>of</strong> Content<br />
2<br />
3-P18 Catalytic Actitity <strong>of</strong> Titania-Kaoline Composite..............................................3.36<br />
Petr Ptáček, Michal Fiala, Jaromír Havlica ,František Šoukal, Tomáš Opravil<br />
3-P19 Deposition <strong>of</strong> the TiO 2 on a Glass and Ceramics Surface ...............................3.37<br />
Alena Rutteová, Jaromír Havlica, Petr Ptáček<br />
3-P20 Composition Changes <strong>of</strong> Clinker with P 2 O 5 Content .....................................3.38<br />
Theodor Staněk, Petr Sulovský, Lenka Tomancová<br />
3-P21 Spectroscopic Investigation <strong>of</strong> some Transitional Metals<br />
Complexes with Leucine as Ligand ..................................................................3.39<br />
A. Stanila , A. Marcu, D. Rusu, M. Rusu<br />
3-P22 The Study <strong>of</strong> Compressive and Flexural Strength <strong>of</strong> High<br />
Performance Concrete (HPC) as the Function <strong>of</strong> its Composition................3.40<br />
Pavel Šiler, Josef Krátký, Ondřej Veleba, Pavel Jedlička<br />
3-P23 Temperature and Moisture Effects on Macrodefct-Free Composite<br />
Structure and Properties ....................................................................................3.41<br />
František Šoukal, Jiří Másilko, Jaromír Havlica, Petr Ptáček, Tomáš Opravil<br />
3-P24 Latex Modified Cement Composites: Effect <strong>of</strong> Polymer Type .......................3.42<br />
František Šoukal, Václav Vinter, Jaromír Havlica, Petr Ptáček, Tomáš<br />
Opravil<br />
3-P25 Influence <strong>of</strong> Conditions on Hydraulic Calcium Aluminate Phases<br />
Hydration Mechanisms ......................................................................................3.43<br />
František Šoukal, Jan Koplík, Jaromír Havlica, Vítězslav Frank, Petr Ptáček<br />
3-P26 The Study <strong>of</strong> Building Materials Biodeterioration by Inovatives<br />
Methods ................................................................................................................3.44<br />
Eva Terpáková<br />
3-P27 Milling <strong>of</strong> Olivine (Mg, Fe) 2 SiO 4 in High-Energy Mills by Wet and<br />
Dry Way .................................................................................................................3.45<br />
Erika Turianicová, Peter Baláž<br />
3-P28 Numerical Modelling and Simulation for Interaction between Cu2+ and S O 2 3<br />
Mihaela Ligia Ungureşan, Mihail Abrudean, Paula Raica, Eva Dulf, Tiberiu<br />
Coloşi<br />
2- ...............................................................................................................3.46<br />
3-P29 Bioactivity and Cytotoxicity <strong>of</strong> Fluorhydroxyapatite Ceramic .....................3.47<br />
Martin Vitkovič, Maha Salih Mahammed Noaman and Martin Palou
Table <strong>of</strong> Content<br />
3-P30 Microwave-Hydrothermal Synthesis <strong>of</strong> Hydroxyapatite From<br />
CaSO 4 · 1/2H 2 O ......................................................................................................3.48<br />
P. Zamazalová , Ch. Damia, E. Champion, O. Gedeon<br />
3-P31 Conversion Coatings on Magnesium Alloys....................................................3.49<br />
Martin Zmrzlý<br />
Section 4: Chemistry <strong>of</strong> OrganicMaterials<br />
Lectures<br />
4-L01 Effect <strong>of</strong> Water Dissolution and Freeze-Drying on the Solid State<br />
NMR Sensitivity <strong>of</strong> a Heterogeneous Organic Mixture ...................................4.5<br />
Pellegrino Conte, Anne E. Berns,Peter Burauel, Hans-Dieter Narres, Harry<br />
Veerecken<br />
4-L02 Aminoacid Pr<strong>of</strong>iles Monitoring for Diagnosis ..................................................4.6<br />
Monica Culea, Andreea Iordache, Cornelia Mesaros<br />
4-L03 Microwave-Assisted Extraction <strong>of</strong> Organic Compounds from the<br />
Brown Coal ..............................................................................................................4.7<br />
Silvia Čuvanová, Michal Lovás<br />
4-L04 Reactivity <strong>of</strong> N-NO 2 Bonds in Nitro Amides ...................................................4.8<br />
Zdeněk Friedl, Svatopluk Zeman<br />
4-L05 XRD and FT-IR Study <strong>of</strong> Soot Obtained from Pyrolysis <strong>of</strong> Used<br />
Tires ..........................................................................................................................4.9<br />
Slavomír Hredzák, Silvia Ivanová<br />
4-L06 Determination <strong>of</strong> Yield and Chemical Composition <strong>of</strong> Soda-<br />
Anthraquinone Semichemical Pulp from Hardwood Mixture ....................4.10<br />
Michal Letko, Erika Nováková, Milan Vrška<br />
Posters<br />
4-P01 Efficient Solvent-Free Synthesis <strong>of</strong> Bis(arylmetylidene)piperidinon<br />
es .............................................................................................................................4.13<br />
M. Saeed Abaee, Mohammad M. Mojtahedi, Roholah Sharifi, A. Wahid<br />
Mesbah<br />
4-P02 Novel Diketopyrrolopyrroles for Molecular Optical and Electrical<br />
Devices ...................................................................................................................4.14<br />
Pavel Bednář, Oldřich Zmeškal, Martin Weiter, Martin Vala<br />
2
Table <strong>of</strong> Content<br />
0<br />
4-P03 Diagnosis <strong>of</strong> Cirrhosis by GC/MS .....................................................................4.15<br />
Monica Culea, Cornelia Mesaros, Eugen Culea<br />
4-P04 Leukotriene Quantitation by GC-MS ................................................................4.16<br />
Monica Culea, Eugen Culea, Paraschiva Chereches-Panta, Adela Pintea<br />
4-P05 Characterization <strong>of</strong> Oligosaccharides Using ESI-MS in Presence <strong>of</strong><br />
Anions ....................................................................................................................4.17<br />
Richard Čmelík, Janette Bobáľová<br />
4-P06 A new Approach to Protein Enzymatic Digestion for Fast Protein<br />
Identification by Matrix-Assisted Laser Desorption/Ionization<br />
Time-<strong>of</strong>-Flight Mass Spectrometry ....................................................................4.18<br />
Filip Dyčka, Markéta Laštovičková, and Janette Bobáľová<br />
4-P07 The 13 C and 119 Sn NMR Spectra <strong>of</strong> Some<br />
Trioraganotin-(IV)-N,N-Diethyldithiocarbamates Used as Wood<br />
Preservatives .........................................................................................................4.19<br />
Juraj Kizlink, Ladislav Reinprecht<br />
4-P08 Preparation <strong>of</strong> Dimethyl Carbonate from Methanol and Carbon<br />
Dioxide – The Removal <strong>of</strong> Reaction Water by Olefins ....................................4.20<br />
Juraj Kizlink<br />
4-P09 Amadori Rearrangement for Synthesis <strong>of</strong> Chiral Fragments .......................4.21<br />
Jana Marková, Milan Potáček<br />
4-P10 Solvent-Free Oxidative Deprotection <strong>of</strong> Trimethylsilyl Ethers with<br />
Calcium Hypochlorite .........................................................................................4.22<br />
Mohammad M. Mojtahedi, M. Saeed Abaee, Hassan Abbasi<br />
4-P11 Ionic Liquid Promoted Synthesis <strong>of</strong> Benz<strong>of</strong>urans at Room-<br />
Temperature .........................................................................................................4.23<br />
Ali Sharifi, M. Saeed Abaee, Bahram Zamiri, Mojtaba Mirzaei<br />
4-P12 Crystal Engineering <strong>of</strong> Glycoluril Dimers ........................................................4.24<br />
Marek Štancl, Vladimír Šindelář
Table <strong>of</strong> Content<br />
Section 5: Photochemistry<br />
Lectures<br />
5-L01 EPR and UV Study on Photocatalytic Activity <strong>of</strong> Titanium<br />
Dioxide Powders ...................................................................................................5.5<br />
Vlasta Brezová, Zuzana Vrecková, Dana Dvoranová<br />
5-L02 Photocatalytic Degradation <strong>of</strong> Formic Acid on TiO 2 thin Layers ...................5.6<br />
Jana Chomoucká, Petr Dzik, Michal Veselý, Eric Puzenat and Chantal<br />
Guillard<br />
5-L03 Kinetic <strong>of</strong> Degradation <strong>of</strong> Historical Documents Containing Iron-<br />
Gall Inks ...................................................................................................................5.7<br />
Michal Čeppan, Viera Jančovičová, Milena Reháková, Andrej Buzinkay<br />
5-L04 Photochemical Transformations <strong>of</strong> Anticancer Drug Irinotecan .....................5.8<br />
Dana Dvoranová, Vlasta Brezová, Zuzana Vrecková, Marián Valko<br />
5-L05 Thin Layers <strong>of</strong> TiO 2 Prepared by Inkjet Printing ...............................................5.9<br />
Petr Dzik, Jana Chomoucká, Michal Veselý<br />
5-L06 Photocatalytic Properties <strong>of</strong> TiO 2 and Photosensitizing Materials<br />
for Bactericidal Applications ..............................................................................5.10<br />
C. Guillard, K. Benabbou, T.-H. Bui, T. Pigot, S. Pigeot-Remy, P. Lejeune,<br />
S. Lacombe<br />
5-L07 Promising Perspectives in Photocatalysis ........................................................5.11<br />
Chantal Guillard, Eric Puzenat, Jean-Marie Herrmann<br />
5-L08 Interactions in Iron Gall Inks in Air and Nitrogen Atmosphere ...................5.12<br />
Viera Jančovičová, Michaela Ciglanská, Bohuslava Havlínová, Michal<br />
Čeppan<br />
5-L09 Reactivity <strong>of</strong> Hydroxyl Radical on Benzene Ring and Side Chain<br />
in the Photocatalytic Degradation <strong>of</strong> Phenylurea Derivatives ......................5.13<br />
Jaromír Jirkovský, Gottfried Grabner<br />
5-L10 Approaches to standard photocatalyst tests in gaseous and liquid<br />
phase .....................................................................................................................5.14<br />
Josef Krýsa<br />
5L-11 Testing network for verification <strong>of</strong> photo-catalytic products and<br />
technologies for environmental benefit – PETV ..............................................5.15<br />
František Peterka<br />
1
Table <strong>of</strong> Content<br />
2<br />
5-L12 Evaluation <strong>of</strong> the Photocatalytic Properties <strong>of</strong> TiO 2 Thin Film<br />
Layers. Application to Self-cleaning Glass .......................................................5.16<br />
E. Puzenat, J. Drbohlavová, L. Péruchon, J.-M. Herrmann and C. Guillard<br />
5-L13 Study <strong>of</strong> Stabilization <strong>of</strong> Documents Containing Iron Gall Inks by<br />
Treatment <strong>of</strong> Atmospheric DBD N 2 Plasma .....................................................5.17<br />
Milena Reháková, Michal Čeppan, Milan Mikula<br />
5-L14 An Overview <strong>of</strong> Inkjet Printouts Accelerated Ageing Methods ...................5.18<br />
Jiří Stančík, Michal Veselý, Petr Dzik<br />
5-L15 Subjective and Objective Evaluation <strong>of</strong> Recognisability <strong>of</strong> Black<br />
Character on Paper ...............................................................................................5.19<br />
A. Szitás, M. Jablonský, S. Katuščák S.,<br />
5-L16 Pigments for Photocatalytic Paints ...................................................................5.20<br />
Jan Šubrt<br />
5-L17 Organometallic Cationic Photoinitiators ..........................................................5.21<br />
Jan Vališ, Bohumil Jašúrek, Tomáš Syrový, Katarína Remenárová, Tomáš<br />
Weidlich<br />
5-L18 Kinetics <strong>of</strong> Oxidative Processes on Inkjet-Printed thin Layers <strong>of</strong><br />
Titanium Dioxide ................................................................................................5.22<br />
Michal Veselý, Petr Dzik, Mária Veselá, Jana Drbohlavová, Jana Chomoucká<br />
5-L19 Model dyes in Titania photocatalytic systems .................................................5.23<br />
Jiří Zita and Josef Krýsa<br />
5-L20 A Study on the Thickness Homogeneity and Refractive Index <strong>of</strong><br />
Thin Organic Layers ...........................................................................................5.24<br />
Oldřich Zmeškal, Ota Salyk, Michal Veselý, Petr Dzik<br />
Posters<br />
5-P01 Using <strong>of</strong> Vis-Nir Fibre Optics Reflectance Spectra for<br />
Identification <strong>of</strong> Iron-Gall Inks in Historical Documents ...............................5.27<br />
Michal Čeppan, Daniela Pavlisová, Milena Reháková, Jarmila Dóriová<br />
5-P02 The Study <strong>of</strong> TiO 2 thin Films Photocatalytic Activity on<br />
Degradation <strong>of</strong> Yeast and Dye Pollutants .........................................................5.28<br />
Jana Chomoucká, Jana Drbohlavová, Petr Dzik, Mária Veselá, Michal Veselý
Table <strong>of</strong> Content<br />
5-P03 The Influence <strong>of</strong> Photoinitiators and Aditives on the<br />
Photochemical Speed <strong>of</strong> Methacrylated PVAl .................................................5.29<br />
Marcela Černá, Petr Dzik, Michal Veselý<br />
5-P04 TiO 2 Based Sensor with Nanostructured Surface for Gas Detection ............5.30<br />
Jana Drbohlavová, Jaromír Hubálek, Marina Vorozhtsova, Radim Hrdý<br />
5-P05 Image Analysis <strong>of</strong> Offset Lithography Prints...................................................5.31<br />
Bohuslava Havlínová, Vladimír Dvonka, Ján Panák, Michal Čeppan<br />
5-P06 Color Fidelity <strong>of</strong> Reproduction<strong>of</strong> Historical Documents ...............................5.32<br />
Bohuslava Havlínová, Vladimír Dvonka, Michal Čeppan, Milena Reháková,<br />
Ján Panák<br />
5-P07 Improvement <strong>of</strong> Barrier Properties <strong>of</strong> Paper Using<br />
Photochemically Modified Polymer Layers .....................................................5.33<br />
Viera Jančovičová, Sabine Amberg-Schwab<br />
5-P08 Influence <strong>of</strong> Ageing on Optical Properties <strong>of</strong> Arylmethane Dyes .................5.34<br />
Viera Jančovičová, Miroslava Petrovičová, Bohuslava Havlínová,<br />
5-P09 Investigation <strong>of</strong> Decomposition <strong>of</strong> Photoinitiators .........................................5.35<br />
Bohumil Jašúrek, Tomáš Syrový, Jan Vališ, Tomáš Weidlich<br />
5-P10 Comparison <strong>of</strong> the Photocatalytic Properties <strong>of</strong> TiO 2 and Au/TiO 2<br />
in the Degradation <strong>of</strong> C 2 H 2 .................................................................................5.36<br />
E. Puzenat, C. Youssef, N. Jaffrezic-Renault, J.-M. Herrmann, C. Guillard a<br />
5-P11 Study <strong>of</strong> Influence <strong>of</strong> Iron-gall Inks Composition on Properties <strong>of</strong><br />
Historical Documents ..........................................................................................5.37<br />
Milena Reháková, Michal Čeppan, Vladimír Dvonka<br />
5-P12 The Influence <strong>of</strong> Receiving Layer Composition on Inkjet Print<br />
Lightfastness ........................................................................................................5.38<br />
Jiří Stančík, Michal Veselý, Petr Dzik<br />
5-P13 Photopolymerization <strong>of</strong> Monomers with two Different Reactive<br />
Groups ...................................................................................................................5.39<br />
Josef Svoboda, Josef Knobloch<br />
5-P14 A new Aproach to Inkjet Prints Lightfastness Evaluation .............................5.40<br />
Michal Veselý, Petr Dzik, Jiří Stančík
Table <strong>of</strong> Content<br />
Section 6: Physical and Applied Chemistry<br />
Lectures<br />
6-L01 Self-Aggregation <strong>of</strong> Humic and Fulvic Acids Studied on IHSS<br />
Standards .................................................................................................................6.5<br />
Martin Drastík, Anna Čtvrtníčková, Jiří Kučerík<br />
6-L02 Robust Nonlinear Control <strong>of</strong> a Separation Column for 13 C<br />
Enrichment by Cryogenic Distillation <strong>of</strong> Carbon Monoxide ...........................6.6<br />
Eva-Henrietta Dulf, Clement Festila, Francisc Dulf<br />
6-L03 Molecular Characterisation <strong>of</strong> Lignite Humic Acids by Chemical<br />
Degradations ...........................................................................................................6.7<br />
Laurent Grasset, Dana Válková, André Amblès<br />
6-L04 Prediction <strong>of</strong> the Acetic and Formic Acid Formation in the Paper<br />
During the Accelerated Ageing by the Change <strong>of</strong> Optical Properties ...........6.8<br />
M. Jablonský, K. Hroboňová, J. Lehotay, S. Katuščák<br />
6-L05 Effect <strong>of</strong> Modification <strong>of</strong> Paper with Antioxidant <strong>of</strong> Piperidine<br />
Serie on Recognisability <strong>of</strong> Black Characters on Paper ....................................6.9<br />
Jana Kazíková, Attila Szitás, Katarína Vizárová, Michal Jablonský, František<br />
Považanec, Soňa Kirschnerová, Svetozár Katuščák<br />
6-L06 Role <strong>of</strong> Aromaticity in Humic Substances Degradation Kinetics<br />
UsingNon-Arrhenius Temperature Functions .................................................6.10<br />
Jiří Kislinger, František Novák, Jiří Kučerík<br />
6-L07 NMR Spectroscopy <strong>of</strong> Minor Compounds in Wine – a<br />
Comparison <strong>of</strong> Different Pre-Concentration methods ..................................6.11<br />
M. Mazur, K. Furdíková, M. Kaliňák, M. Valko, V. Žúbor, N. Prónayová<br />
6-L08 Hydrophobization <strong>of</strong> Paper by Vapours in N 2 Plasma at<br />
Atmospheric Pressure .........................................................................................6.12<br />
Milan Mikula, Alexandra Valaseková,Zuzana Jakubíková, Viera Jančovičová<br />
6-L09 Fluorescence Study <strong>of</strong> Polysaccharide in Dilute Aqueous Solution .............6.13<br />
Filip Mravec, Tereza Halasová, Miloslav Pekař, Vladimír Velebný<br />
6-L10 Spin-Trapping Investigation <strong>of</strong> Radical Intermediates Generated<br />
from Phenols.Specific Behaviour <strong>of</strong> Para-Methyl Phenols .............................6.14<br />
Ladislav Omelka, Petr Majzlík,Renata Superatová, Petra Holubcová<br />
6-L11 Vortex-Fractal-Ring Structure <strong>of</strong> Molecule ......................................................6.15<br />
Pavel Ošmera
Table <strong>of</strong> Content<br />
6-L012 Hydration <strong>of</strong> Hyaluronan ...................................................................................6.16<br />
Alena Průšová, Petra Bursáková, Jiří Kučerík<br />
6-L13 Electrochemical Analysis <strong>of</strong> New Indole-Based Antioxidants .....................6.17<br />
P. Rapta, M. Zalibera, V. Šnirc, S. Štolc<br />
6-L14 New Colloidal Systems made <strong>of</strong> Humic Acids ...............................................6.18<br />
Petr Sedláček, Martina Klučáková, Miroslava Malenovská<br />
6-L15 Photochemical and Free Radicals Study <strong>of</strong> Cyanobacteria using<br />
EPR Spectroscopy .................................................................................................6.19<br />
Stopka P., Maršálek B., Křížová J.<br />
6-L16 Molecular Electronic: Advances and Limitations, Strategies,<br />
Materials, Methods and Applications ...............................................................6.20<br />
Martin Vala, Martin Weiter, Oldřich Zmeškal, Ota Salyk<br />
6-L17 Mutual Relation between Fractal and Statistical (Random,<br />
Thermodynamic) Phenomena in Nature ..........................................................6.21<br />
Oldřich Zmeškal, Martin Weiter,Martin Vala, Tomáš Bžatek<br />
Posters<br />
6-P01 Influence <strong>of</strong> Regenerated Humic Acids on Polyvinyl Alcohol<br />
Thermo-Oxidational Stability .............................................................................6.25<br />
Barbora Bakajová, Zoja Vlčková, Jiří Kučerík<br />
6-P02 Determination <strong>of</strong> Particle Shape and Size Distribution ................................6.26<br />
Edita Bretšnajdrová, Ladislav Svoboda, Jiří Zelenka<br />
6-P03 Hydration <strong>of</strong> Regenerated Humic Substances Considering their<br />
Biological Properties ............................................................................................6.27<br />
Petra Bursáková, Zoja Vlčková, Zdeněk Cihlář, Jiří Kučerík<br />
6-P04 Evaluation <strong>of</strong> Sorption Abilities <strong>of</strong> Natural Lignite for Organic<br />
Substances .............................................................................................................6.28<br />
Petra Bušinová, Miloslav Pekař<br />
6-P05 Maximum Bubble Pressure and the du noüy Platinum Ring<br />
Method <strong>of</strong> Surface Tension Measurements <strong>of</strong> Sodium Dodecyl<br />
Sulfate and Sodium Hyaluronate ......................................................................6.29<br />
Martin Chytil, Jitka Krouská, P. Kulilová, Miloslav Pekař<br />
6-P06 Surface Tension <strong>of</strong> Regenerated Humic Acids Salts .......................................6.30<br />
Anna Čtvrtníčková, Jiří Kučerík
Table <strong>of</strong> Content<br />
6-P07 Immobilization <strong>of</strong> Lignite into PVAl Sponges .................................................6.31<br />
Petr Dzik, Václav Mach, Michal Veselý<br />
6-P08 FTIR and SFS Spectra <strong>of</strong> Humic Acids Isolated from Lignite and<br />
Chernozem ............................................................................................................6.32<br />
Naděžda Fasurová and Ľubica Pospíšilová<br />
6-P09 Enhancement <strong>of</strong> Northern S<strong>of</strong>twood Bleached Kraft Pulp<br />
Accessibility and Acid Hydrolysis by Means <strong>of</strong> Ultrasonic Treatment .......6.33<br />
Michal Jablonský, Štefan Šutý, B. Švehla<br />
6-P10 Modelling <strong>of</strong> Complexation <strong>of</strong> Heavy Metals And Humic Acids<br />
with Utilization <strong>of</strong> High Resolution Ultrasound Spectroscopy ....................6.34<br />
Martina Klučáková, Jiří KučeríkMiloslav Pekař<br />
6-P11 Kinetics <strong>of</strong> Sorption <strong>of</strong> Metal Ions on Lignitic Humic Acids .........................6.35<br />
Martina Klučáková<br />
6-P12 Acid-base Properties <strong>of</strong> Fractionated Humic Acids ........................................6.36<br />
Martina Klučáková, Ondřej Pilný<br />
6-P13 HF and DFT Calculations <strong>of</strong> the Infrared and Raman Spectra <strong>of</strong><br />
Lanthanide Complexes Cp* 2 LnCl 2 Li(OEt 2 ) 2 , where Ln = Sm, Nd .................6.37<br />
Ondřej Kroutil, Soňa Hermanová, Lukáš Richtera, Josef Jančář<br />
6-P14 Comparison <strong>of</strong> Various Plasmachemical Processes with Respect to<br />
the Gas Temperature ............................................................................................6.38<br />
L. Lazar, P. Synek, M. Karásková, M. Eliáš, O. Jašek, L. Kelar, V. Buršíková,<br />
P. Konupčík, L. Zajíčková<br />
6-P15 EPR Study <strong>of</strong> Nitroxide Radicals Generated from Some Secondary<br />
Alkyl-Aryl and Aryl-Aryl Amines ....................................................................6.39<br />
Petr Majzlík, Ladislav Omelka, Jan Světlík, Peter Rapta<br />
6-P16 Roughness <strong>of</strong> Coated Papers Treated in Atmospheric Plasma ......................6.40<br />
Milan Mikula, Zuzana Pobudová, Adam Gilan<br />
6-P17 Influence <strong>of</strong> Dye Structure on Its Decomposition by Electric<br />
Discharge in Water Solution ...............................................................................6.41<br />
Jana Pajurková, Zdenka Stará, František Krčma<br />
6-P18 Influence <strong>of</strong> Mmmk Neutralization on Stability <strong>of</strong> Models <strong>of</strong><br />
Historical Documents ..........................................................................................6.42<br />
M. Petrovičová, B. Havlínová, H. Paulusová
Table <strong>of</strong> Content<br />
6-P19 Influence <strong>of</strong> CSC <strong>Book</strong>saver Deacidification Process on Stability <strong>of</strong><br />
Arylmetane Dyes on Paper .................................................................................6.43<br />
M. Petrovičová, M. Ďurovič, E. Belányiová, B. Havlínová<br />
6-P20 Effect <strong>of</strong> Accelerated Ageing on Properties <strong>of</strong> Parchment .............................6.44<br />
M. Petrovičová, B. Marušicová, M. Ohlidalová, B. Havlínová,<br />
6-P21 Quality <strong>of</strong> Soil Humic Substances by SFS and UV-VIS<br />
Spectroscopy .........................................................................................................6.45<br />
Ľubica Pospíšilová, Naděžda Fasurová<br />
6-P22 Sensoric Properties <strong>of</strong> Aromatic and Heterocyclic Compounds<br />
with Conjugated Bonds .......................................................................................6.46<br />
Ota Salyk, Pavel Bednář, Oldřich Zmeškal, Jan Vyňuchal<br />
6-P23 Structure <strong>of</strong> 1,4-diketo-3,6-bis-(4´-dipyridyl)-pyrrolo-[3,4c]pyrrole<br />
and Relative Compounds ..................................................................6.47<br />
Ota Salyk, Vítězslav Frank, Jakub Stejkora, Jan Vyňuchal<br />
6-P24 The Influence <strong>of</strong> Mechanical Activation on the Production <strong>of</strong> the<br />
Humic Acids in the Brown Coal ........................................................................6.48<br />
M. Skybova, M. Lovas<br />
6-P25 Numeric Modelling <strong>of</strong> V-T Process in Nitrogen Ground State<br />
under Post-Discharge Conditions ......................................................................6.49<br />
Ivo Soural, František Krčma, Vasco Guerra<br />
6-P26 Evaluation <strong>of</strong> Intake Cappability <strong>of</strong> LCM Surface by Adsorption<br />
Dyeding Method and its Utilization for Evaluation <strong>of</strong> Changes in<br />
Surface Polarity Caused by DCSBD Low-Energy Plasma. ............................6.50<br />
Radovan Tiňo, Lívia Beňová,Svetozár Katuščák<br />
6-P27 Evaluation <strong>of</strong> Effiency, Release and Oxidation Stability <strong>of</strong><br />
Seabuckthorn Microencapsulated Oil using Fourier Transformed<br />
Infrared Spectroscopy ..........................................................................................6.51<br />
Monica Trif and Carmen Socaciu<br />
6-P28 13C NMR Spectroscopy <strong>of</strong> Humic Acids Ectracted from Incubated<br />
Plant Residues in Haplic Luvisol ......................................................................6.52<br />
Anton Zaujec, Jozef Šima, Juraj Chlpík, Nora Szombathová, Erika Tobiašová
Table <strong>of</strong> Content<br />
Section 7: Polymers and Polymer Composites<br />
Lectures<br />
7-L01 The Way <strong>of</strong> Stereoregularity Determination <strong>of</strong> Polypropylene ......................7.5<br />
Adam Hoza, Jan Kratochvíla, Soňa Hermanová<br />
7-L02 The Crystallization Kinetics in Semicrystalline Nanocomposites .................7.6<br />
Kateřina Hynštová, Jan Kalfus, Josef Jančář<br />
7-L03 Effect <strong>of</strong> Hexamethyldisiloxane Solution <strong>of</strong> Zirconium Propoxide<br />
on Permanence <strong>of</strong> Paper ........................................................................................7.7<br />
Soňa Kirschnerová, Katarína Vizárová, Svetozár Katuščák<br />
7-L04 Modification <strong>of</strong> Polypropylene Through Radical Grafting in Melt ................7.8<br />
František Kučera<br />
7-L05 Properties <strong>of</strong> Polypropylene Sheets Hot Compacted With<br />
Oriented Polypropylene Tapes .............................................................................7.9<br />
Jaroslav Kučera, Jiří Sadílek, Blanka Rýznarová<br />
7-06 Biodegradation <strong>of</strong> Modified Polyurethane Foams ..............................................7.10<br />
Obruča Stanislav, Márová Ivana, Ondruška Vladimír, Vojtová Lucy, David<br />
Jan<br />
7-L07 Reinforcing Mechanism in Layered Silicate Nanocomposites .....................7.11<br />
Lukáš Recman, Josef Jančář, Jan Kalfus<br />
7-L08 The Influence <strong>of</strong> Mg Compound Paper Modification on<br />
Hornification and Strength Properties During Accelerated Ageing ............7.12<br />
Štefan Šutý, Katarína Petriláková, Svetozár Katuščák, Soňa Kirschnerová,<br />
Michal Jablonský, Katarína Vizárová<br />
7-L09 Impact <strong>of</strong> Processing on Degradation <strong>of</strong> Polypropylene Impact-<br />
Copolymer .............................................................................................................7.13<br />
Jiří Tocháček, Soňa Hermanová, Josef Jančář, Jan Kalfus<br />
7-L10 Polymer Semiconductors for Future Molecular Electronic Devices .............7.14<br />
Martin Weiter, Martin Vala, Stanislav Nešpůrek<br />
7-L11 Molecular Modeling <strong>of</strong> Materials with Network Structure ...........................7.15<br />
Jan Žídek, Josef Jančář
Table <strong>of</strong> Content<br />
Posters<br />
7-P01 Physico-Chemical Properties <strong>of</strong> Functionalized Temperature-<br />
Sensitive Biocompatible Block Copolymers .....................................................7.19<br />
Jan David, Lucy Vojtová, Jiří Kučerík, Ludmila Mravcová, Martin Chytil,<br />
Miloslav Pekař, Milada Vávrová, Josef Jančář<br />
7-P02 Properties <strong>of</strong> Recycled Carbon Fibers ...............................................................7.20<br />
Jan Grégr, Vladimír Kovačič, Miroslav Valeš, Bedřich Štekner, Karel<br />
Cihelník<br />
7-P03 Halosilyl-substituted Cyclopentadienyl Titanium Complexes as<br />
Catalysts for Styrene Syndiospecific Polymerisation ......................................7.21<br />
Soňa Hermanová, Jan Merna, Milan Erben, Zdeněk Svačina<br />
7-P04 Synthesis <strong>of</strong> Modified Cucurbit [n]Urils ..........................................................7.22<br />
Muhammad Shamsul Azim Khan, Vladimír Šindelář<br />
7-P05 Application <strong>of</strong> Thermochromic Compounds in Polymeric Materials .............7.23<br />
František Kučera, Petra Slánská<br />
7-P06 Polymer Photoelectronic Devices Based on Interaction Between<br />
π-Conjugated Polymer Matrices and Photochromic Molecules ...................7.24<br />
Jiří Navrátil, Martin Weiter, Martin Vala, Oldřich Zmeškal, Petr Toman,<br />
Stanislav Nešpůrek<br />
7-P07 Analysis <strong>of</strong> the Wood Surface Treated by Diffuse Coplanar<br />
Surface Barrier Discharge type Atmospheric Plasma .....................................7.25<br />
Erika Nováková, Michal Letko, Radovan Tiňo, Ján Marták, Lívia Beňová<br />
7-P08 Strategies for Enhancing Poly(3-hydroxybutyrate) Production in<br />
Selected Bacterial Strains .....................................................................................7.26<br />
Stanislav Obruča, Soňa Melušová, Ivana Márová, Zdeněk Svoboda<br />
7-P09 Comparison <strong>of</strong> Biodegradability <strong>of</strong> Modified Polyuretne Foams<br />
and Polyurethane Elastomeric Films .................................................................7.27<br />
Stanislav Obruča, Ivana Márová, Jana Piechová, Lucy Vojtová, Marek<br />
Novotný, Jan David<br />
7-P10 Synthesis <strong>of</strong> Substituted Polysilylenes Used as Semiconductive<br />
Polymers ...............................................................................................................7.28<br />
Imad Ouzzane, Soňa Hermanová, Martin Weiter, Stanislav Nešpůrek<br />
7-P11 Automation <strong>of</strong> PE-CVD Process for Preparing <strong>of</strong> Nanostructured<br />
Films .......................................................................................................................7.29<br />
Radek Přikryl
Table <strong>of</strong> Content<br />
0<br />
7-P12 Crystal Structure <strong>of</strong> an Lanthanide Sandwich Complex<br />
(C5Me5)2NdCl2Li(OEt2)2...................................................................................7.30<br />
Lukáš Richtera, Soňa Hermanová, Vojtěch Jančík, Jaroslav Cihlář<br />
7-P13 Computing Effective Properties <strong>of</strong> Composites Via FEM<br />
Simulations ............................................................................................................7.31<br />
Miroslav Rolník, Jan Žídek, Josef Jančář<br />
7-P14 Effect <strong>of</strong> Thermal History on Structure-Property Relationship in<br />
Oriented Polypropylene Films and Tapes ........................................................7.32<br />
Jiří Sadílek, Jaroslav Kučera<br />
7-P15 Bioresorbable Collagen-Hyaluronic Acid Scaffolds Cross-Linked<br />
Using a Water-Soluble Carbodiimide ...............................................................7.33<br />
Alexandra Sloviková, Lucy Vojtová, Josef Jančář<br />
7-P16 Water Retention Value During Thermally Accelerated Ageing <strong>of</strong><br />
Paper. ......................................................................................................................7.34<br />
Štefan Šutý, Katarína Petriláková, Svetozár Katuščák, Michal Jablonský,<br />
Katarína Vizárová., Soňa Kirschnerová<br />
7-P17 Spin Probe Dynamics in Relation to Free Volume and Relaxation<br />
Dynamics <strong>of</strong> Poly(isobutylene) ..........................................................................7.35<br />
Helena Švajdlenková, Josef Bartoš<br />
7-P18 Toughness Versus Strength and Stiffness <strong>of</strong> Polypropylene Filled<br />
with Submicron CaCO 3 Particles .......................................................................7.36<br />
Petr Veselý, Eva Nezbedová, Bohumil Vlach<br />
7-P19 Polysaccharides Modified Elastomeric Polyurethane .....................................7.37<br />
Lucy Vojtová, Marek Novotný, Stanislav Obruča, Jana Piechová, Ivana<br />
Márová, Josef Jančář<br />
7-P20 Models <strong>of</strong> Organized Supermolecular Structures: Application to<br />
Collagen Fibrils and Dendrimers .......................................................................7.38<br />
Jan Žídek, Jolana Ščudlová, Josef Jančář<br />
Appendices<br />
Index .................................................................................................................................. I.3<br />
Commercial presentations ............................................................................................... I.15
Preface<br />
1
Conference Partners<br />
2 THETA<br />
Analytical standards and equipment
Foreword<br />
Dear participants <strong>of</strong> the Chemistry and Life 2008 conference,<br />
Like three years ago, this year a special issue <strong>of</strong> the Chemické listy Journal<br />
with contributions presented at this 4 th successive conference Chemistry and Life<br />
has been delivered to you again. Unlike the previous conference contributions, this<br />
year’s ones have been published electronically on a CD, which might be appreciated<br />
by many <strong>of</strong> you, dear participants.<br />
Since 1999 the conference Chemistry and Life has regularly been organized by<br />
the Faculty <strong>of</strong> Chemistry <strong>of</strong> Brno University <strong>of</strong> Technology (BUT). It has become<br />
one <strong>of</strong> the most significant items in the field <strong>of</strong> science and research activities implemented<br />
by the faculty. Specialists have shown increasing interest in the conference<br />
and the present Organizing Committee has received almost 300 contributions that<br />
will be presented in 7 sessions. Besides the traditional attendance <strong>of</strong> Czech and<br />
Slovak chemists we also appreciate increasing number <strong>of</strong> contributing scientists and<br />
researchers from abroad.<br />
Fruitful cooperation with industry enables implementation <strong>of</strong> the conference<br />
in broad extent designed by the organizers. The conference committees are pleased<br />
to <strong>of</strong>fer accompanying social programme that might contribute to successful course<br />
<strong>of</strong> the conference.<br />
Dear participants <strong>of</strong> the 4 th Chemistry and Life conference, on behalf <strong>of</strong> both<br />
the Organizing and Scientific Committees I feel honoured to welcome you to the<br />
grounds <strong>of</strong> the Faculty <strong>of</strong> Chemistry <strong>of</strong> BUT. At the same time let me express the<br />
hope that the conference outcomes will contribute to development <strong>of</strong> knowledge in<br />
various branches <strong>of</strong> chemistry.<br />
Assoc. Pr<strong>of</strong>., Jaromír Havlica, Ph.D.<br />
Dean <strong>of</strong> the Faculty <strong>of</strong> Chemistry <strong>of</strong> BUT Brno<br />
Chairman <strong>of</strong> the Scientific Committee<br />
<strong>of</strong> the Chemistry and Life 2008 conference
Plenary Lectures<br />
P.1
P.2
Plenary Lectures<br />
PL-01 Functional Dairy Products – from Traditional to<br />
Modern Technology<br />
Irena Rogelj and Bojana Bogovič Matijašić<br />
University <strong>of</strong> Ljubljana, Biotechnical faculty,<br />
Department <strong>of</strong> Animal Science, Chair <strong>of</strong> Dairy Science,<br />
Groblje 3, 1230 Domzale, Slovenia<br />
Irena.rogelj@bfro.uni-lj.si<br />
Functional Food is a new chapter in nutrition science. It is usually described as<br />
“food which promotes health beyond providing basic nutrition”. From this point<br />
<strong>of</strong> view one could argue whether milk and many traditional dairy products belong<br />
to the family <strong>of</strong> functional food. However, it is more and more evident that almost<br />
all components <strong>of</strong> milk possess physiological functionality beyond nutrition. Moreover,<br />
several <strong>of</strong> them exert more than one physiological function. To date, different<br />
in vivo experiments including human clinical trials have generally supported the<br />
concept that dairy foods possess a natural “cluster” <strong>of</strong> nutrients that protect health<br />
and enhance the immune system. Bioactive peptides derived from milk proteins are<br />
a typical example. In addition, the milk and dairy products represent an excellent<br />
medium for the delivery <strong>of</strong> pro- and pre-biotics. Designing and developing functionality<br />
in dairy products simply means modifying and/or enriching the healthy<br />
nature <strong>of</strong> the original base. Progresses in food production and processing and modern<br />
biotechnology have been <strong>of</strong>fering numerous opportunities for creation <strong>of</strong> “tailor<br />
made” functional dairy products. New in vitro and in vivo research methods and<br />
advanced models provide important information on the mechanisms behind the observed<br />
effects and enable the discovery <strong>of</strong> new biomarkers to be followed in human<br />
studies. In addition, different -omics are giving step by step more opportunities<br />
for scientific demonstration <strong>of</strong> health claims. Dairy products representing the major<br />
part <strong>of</strong> functional foods, especially fortified dairy foods, designer milk, fermented,<br />
probiotic and symbiotic dairy products will be presented and discussed.<br />
Key words: functional food, dairy products, biotechnology, probiotics,<br />
bioactive peptides<br />
P.
Plenary Lectures<br />
PL-02 Alkali-activated Aluminosilicates: Past, Present<br />
and Future<br />
P.<br />
Pavel Krivenko<br />
V. D. Glukhovsky State Scientific Research Institute for Binders and Materials,<br />
Kiev National University <strong>of</strong> Civil Engineering and Architecture<br />
Vozdukh<strong>of</strong>lotsky prospect, 31, Kiev, 03037, Ukraine<br />
pavlo.kryvenko@gmail.com<br />
Less than half a century ago an idea <strong>of</strong> the presence <strong>of</strong> free alkalis in the cement<br />
composition was considered by cement people as absurd one and this was a postulate<br />
<strong>of</strong> fundamental bases <strong>of</strong> revealing hydraulic binding properties by the mineral<br />
systems. At the same time, the studies held on the reasons for excellent durability <strong>of</strong><br />
ancient cements together with data collected on stability and composition <strong>of</strong> natural<br />
mineral formations testified that this postulate was not correct. In 1957 the scientist<br />
from the USSR V.D.Glukhovsky put forward an idea about these contradictions and<br />
an assumption he made was taken as a base for studying, development and use <strong>of</strong> a<br />
principally new class <strong>of</strong> cements known in the art under the name-alkaline cements<br />
or in some publications- alkali- activated cements, in which the alkaline ions played<br />
role <strong>of</strong> not catalysts <strong>of</strong> reactions but as structure- forming elements. Further development<br />
<strong>of</strong> these binding systems and the experience obtained from their small- and<br />
large- scale application gave pro<strong>of</strong>s to this assumption.<br />
Keywords: aluminosilicate, alkaline activator, alkaline cement, concrete,<br />
hydration
Plenary Lectures<br />
PL-03 Organic Anthropogenic Contaminants in<br />
River Systems – Complementary Environmental<br />
Approaches<br />
Jan Schwarzbauer<br />
Institute <strong>of</strong> Geology and Geochemistry <strong>of</strong> Petroleum and Coal, RWTH Aachen Unievrsity<br />
Lochnerstrasse 4-20, 52056 Aachen<br />
schwarzbauer@lek.rwth-aachen.de<br />
Rivers are sensitive but also complex ecosystems hosting a wide spectrum <strong>of</strong><br />
organisms. Anthropogenic activities and the resulting discharge <strong>of</strong> contaminants<br />
have resulted in increasing river pollution over decades. Especially, in industrialized,<br />
densely populated or agricultural strongly affected regions the natural riverine<br />
organic matter is superimposed by huge anthropogenic emissions.<br />
Organic contaminants discharged to the aquatic environment exhibit a high diversity<br />
with respect to their molecular structures and the resulting physico-chemical<br />
properties. Although the chemical analysis <strong>of</strong> anthropogenic contamination in<br />
river systems is still an important feature, especially with respect to the identification<br />
and structure elucidation <strong>of</strong> novel contaminants, the focus <strong>of</strong> environmental<br />
studies has changed. In recent times the research on the environmental behaviour <strong>of</strong><br />
organic pollutants became more and more important in order to assess their risk as<br />
a result <strong>of</strong> their emission to natural systems. Consequently, the knowledge not only<br />
about the occurrence and amount <strong>of</strong> anthropogenic contaminants but also about<br />
bioavailability, their exchange within different compartments, as well as on molecular<br />
aspects <strong>of</strong> degradation or metabolism processes increases significantly. Further<br />
on, environmental studies on the anthropogenic pollution <strong>of</strong> aquatic systems do not<br />
remain on tthe analysis <strong>of</strong> pre-selected substances. Considering the currently use <strong>of</strong><br />
over 1000.000 man-made chemicals in the EU it has to be assumed, that analytical<br />
investigations on environmental systems solely focussed on a few pollutants still<br />
do not depict the ‘real’ pollution level. Therefore, the number <strong>of</strong> more extensive<br />
and detailed investigations considering a wide spectra <strong>of</strong> relevant organic pollutants<br />
increases slowly. Such investigations reveal a more comprehensive view on the<br />
state <strong>of</strong> pollution <strong>of</strong> a natural system. For all the described purposes, a complementary<br />
application <strong>of</strong> different analytical strategies and methods have to be applied<br />
to reveal a better understanding <strong>of</strong> environmental processes affecting the riverine<br />
pollution by organic substances. Examples <strong>of</strong> such approaches are presented in the<br />
following lecture.<br />
P.
Plenary Lectures<br />
PL-04 Dark Side <strong>of</strong> Chemistry in Human Civilization<br />
P.<br />
Pavel Častulík<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> chemistry,<br />
Institute <strong>of</strong> Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkynova 464/118, 612 00 Brno, Czech Republic<br />
castulik@fch.vutbr.cz<br />
As the Moon appears to human civilization as a planet with only one face towards<br />
to our eyes due to the Universe mechanics laws, some human societies would<br />
like to apply their subjective laws in order to keeping their superiority, by demonstrating<br />
only beneficial and peaceful face <strong>of</strong> chemistry. However, in the same time<br />
any advanced knowledge and technologies may have also display their dark side, if<br />
misused forcefully against others in order to keep dominancy above them. In nowadays<br />
the negative side <strong>of</strong> chemistry is affecting our living environment and lives due<br />
to negligence <strong>of</strong> subjects driven inter alia by commercial interests. Nevertheless, bitter<br />
experience in the use <strong>of</strong> chemistry in past war conflicts against humans giving us<br />
a serious warning on possible misuse <strong>of</strong> advanced nuclear, chemical and biological<br />
science and technology knowledge in unpredictable and covert consequences.<br />
On one side chemistry is helping to ease our life and speed up advanced development<br />
<strong>of</strong> human civilization and on the other side also manufacturing <strong>of</strong> weapons<br />
and their components and precursors. Traditionally the dark side <strong>of</strong> chemistry is<br />
linked within the chain <strong>of</strong> pharmacology and toxicology and their effects to living<br />
organisms. There is common ground between pharmacology benefits <strong>of</strong> drugs and<br />
toxicology effects due to the same chemical reactions/mechanism. Only differences<br />
between drugs and venoms are in their doses.<br />
In this presentation I wish to remind senior and junior scientific community<br />
on a very narrow razor-blade <strong>of</strong> balancing between benefits <strong>of</strong> chemistry and its<br />
potential evil role. We wish to go historically through events when chemical molecules<br />
had been used as mass killing chemical warfare and also on the other side<br />
<strong>of</strong> that coin when associated research in this field helps to increased agricultural<br />
production and advanced treatment <strong>of</strong> human diseases and more comprehensive<br />
understanding <strong>of</strong> metabolism and functions <strong>of</strong> human body. Memento will be given<br />
to potential threats <strong>of</strong> advanced chemistry science and technology, if misguided by<br />
humans against others and living environment.
PL-05 Challenges <strong>of</strong> the Analysis <strong>of</strong> Food and<br />
Environmental Matrices by GC-TOF MS<br />
and GCxGC-TOF MS<br />
Tomáš Kovalczuk, Jitka Zrostlíková, Jana Hajšlová, Jakub Schůrek,<br />
Mark Libardoni<br />
Leco Corporation, Apllication Laboratory Prague<br />
Sokolovská 219, Pratur 9-Vysočany, 1900 00<br />
Tomas.kovalczuk@leco.cz<br />
Plenary Lectures<br />
The demands on the analysis <strong>of</strong> organic contaminants’ residues have been<br />
increasing recently, taking into account the number <strong>of</strong> compounds analysed in a<br />
single run, number <strong>of</strong> matrices handled within one method, requirements on detection<br />
limits as well as requirements on the analysis speed. Accordingly, considerable<br />
progress in both sample preparation techniques and in the instrumentation has<br />
been done recently.<br />
Time-<strong>of</strong>-flight mass spectrometry <strong>of</strong>fers several important benefits over conventional<br />
(scanning) MS detectors: (i) With TOF MS full mass spectral information<br />
is available across the whole chromatogram, while the achieved detectability is<br />
comparable to the one typical for conventional MS detectors. Therefore, unambiguous<br />
confirmation <strong>of</strong> analyte identity is possible according to full mass spectrum.<br />
(ii) The absence <strong>of</strong> spectral skewing and the constant ratios <strong>of</strong> ions across a chromatographic<br />
peak allow the application <strong>of</strong> s<strong>of</strong>tware data mining algorithms <strong>of</strong> peak<br />
finding and true signal deconvolution. This enables the applications for non-target<br />
screening analysis. (iii) Being the fastest MS detector, time-<strong>of</strong>-flight can be used for<br />
the applications in fast and ultra-fast GC and comprehensive two-dimensional gas<br />
chromatography (GCxGC), as discussed below.<br />
Comprehensive two-dimensional gas chromatography (GCxGC) has been a<br />
subject <strong>of</strong> attention in recent years, because <strong>of</strong> its enormous separation ability. In<br />
GCxGC, two columns <strong>of</strong> different selectivity are connected via a thermal modulator,<br />
which cuts small parts <strong>of</strong> the first column eluate, focuses them to sharp zones and<br />
samples them onto the second column, where a very fast “flash” separation (100-150<br />
times faster compared to separation in first column) is performed. Each compound<br />
<strong>of</strong> a sample is therefore subjected to two independent separation mechanisms.<br />
The considerably increased peak capacity <strong>of</strong> GCxGC over one dimensional GC<br />
provides not only improved separation <strong>of</strong> target analytes but also target anaytes from matrix<br />
which allow more accurate identification and quantification <strong>of</strong> analytes.<br />
P.
Plenary Lectures<br />
PL-06 Nanoparticle Characterisation Using Light<br />
Scattering Techniques<br />
P.<br />
Michael Kaszuba<br />
Malvern Instruments Ltd., Grovewood Road, Enigma Business Park, Malvern,<br />
Worcestershire, WR14 1XZ. UK<br />
Particle size and zeta potential are important parameters for the characterization<br />
<strong>of</strong> nanoparticles. The technique <strong>of</strong> dynamic light scattering is well suited to the<br />
measurement <strong>of</strong> the size <strong>of</strong> nanoparticle dispersions. Traditionally, measurement <strong>of</strong><br />
very small and/or poorly scattering particles or samples that are very dilute were difficult<br />
unless high-powered lasers were used. These problems have been addressed<br />
in a light scattering instrument incorporating novel non-invasive backscatter optics<br />
(NIBS®). This novel optic arrangement maximises the detection <strong>of</strong> scattered light<br />
while maintaining signal quality.<br />
Laser Doppler electrophoresis is an accepted method for the measurement<br />
<strong>of</strong> particle mobility and zeta potential <strong>of</strong> dispersions <strong>of</strong> colloidal size materials. A<br />
novel scheme using a combination <strong>of</strong> Phase Analysis Light Scattering (PALS) and<br />
a patented method <strong>of</strong> measurement called M3 to improve the accuracy and ease <strong>of</strong><br />
use <strong>of</strong> the technique will be discussed.<br />
These technologies have been incorporated in the Zetasizer Nano Series <strong>of</strong><br />
instruments from Malvern Instruments Ltd (Malvern, Worcestershire, UK). Examples<br />
<strong>of</strong> the application <strong>of</strong> these novel light scattering techniques to a wide range <strong>of</strong><br />
nanoparticle samples will be presented which will illustrate the capabilities <strong>of</strong> the<br />
technology.
PL-07 Rapid stability assessment and particle<br />
characterization for food and nonfood<br />
products by multisample analytical<br />
centrifugation<br />
D. Lerche, T. Sobisch, S. Küchler, A. Uhl<br />
Pr<strong>of</strong>. Dr. Dietmar Lerche, L.U.M. GmbH, Rudower Chaussee 29, 12489 Berlin<br />
www.lum-gmbh.com, info@lum-gmbh.de<br />
Plenary Lectures<br />
A considerable fraction <strong>of</strong> food products are dispersions (emulsions, suspensions,<br />
suspoemulsions). Therefore not only the microbiological and chemical stability<br />
matters, but the separation stability has also to be characterized.<br />
The development <strong>of</strong> new food formulations as well as process monitoring and<br />
quality assurance require efficient and objective analytical tools for shelf life prediction<br />
and stability determination.<br />
A new multisample approach is presented using analytical centrifugation,<br />
which allows for an accelerated characterization <strong>of</strong> destabilization processes (creaming,<br />
sedimentation, coalescence, phase separation). The kinetics <strong>of</strong> these destabilizing<br />
processes can be traced simultaneously for up-to 12 different samples with temperature<br />
control in the range from 4 °C to 60 °C.<br />
Analytical centrifugation measures the inherent stability <strong>of</strong> the samples, but<br />
cannot foresee destabilizing processes which will happen in the future. In this respect<br />
a combination with common accelerated stability testing is the method <strong>of</strong><br />
choice.<br />
The wide application potential <strong>of</strong> this approach is demonstrated by examples<br />
<strong>of</strong> measurements on typical food dispersions like milk and milk based products.<br />
The characterization <strong>of</strong> cosmetic products or fine chemicals provide further insight<br />
into this analytical technique.<br />
P.
Plenary Lectures<br />
PL-08 Transformation <strong>of</strong> Petroleum Type Pollutant<br />
in the Environment<br />
P.10<br />
Branimir Jovancicevic<br />
Department <strong>of</strong> Chemistry, University <strong>of</strong> Belgrade,<br />
Studentski trg 12-16, Belgrade, Serbia<br />
bjovanci@chem.bg.ac.yu<br />
Petroleum and its refining products continue to be one <strong>of</strong> the most abundant<br />
environmental pollutants. Consequently, transformation processes <strong>of</strong> petroleumtype<br />
pollutants in soils, recent sediments, alluvial sediments, ground and surface<br />
waters were studied by numerous authors: in coastal marine environment, in estuarine<br />
sediments, under arctic marine conditions, on the East Mediterranean coast<br />
etc.<br />
The fate <strong>of</strong> an oil type pollutant in the environment can be monitored most accurately<br />
by determining its quantity and studying its composition in the polluted<br />
samples from the same or close locality, and during different periods <strong>of</strong> time. On<br />
that way a number <strong>of</strong> experiments were carried out in order to define the intesity<br />
and optimal conditions for the most efficient biodegradation (temperature, humidity,<br />
nutrients).<br />
On the other side, simulation <strong>of</strong> the natural conditions in the laboratory or by<br />
ex situ bioremediation with simultaneous intensification <strong>of</strong> only specified factors affecting<br />
the intensity and rate <strong>of</strong> transformation made it possible to save time and to<br />
come to relevant conclusions. Applications <strong>of</strong> biodegradation processes foccussed<br />
primarily on bioremediation <strong>of</strong> different sections <strong>of</strong> the environmental compartments<br />
have been described.<br />
In this paper our recent results will be reviewed observed by investigating tranformation<br />
processes <strong>of</strong> petroleum-type pollutant 1) by determining its quantity and<br />
studying its composition in the polluted samples from different distance <strong>of</strong> oil spill;<br />
2) by determining its quantity and studying its composition in the polluted samples<br />
during different periods <strong>of</strong> time from oil spill; 3) by simulation <strong>of</strong> the natural conditions<br />
in the laboratory and 4) by ex situ bioremediation with simultaneous intensification<br />
<strong>of</strong> only specified factors affecting the intensity and rate <strong>of</strong> transformation.
Section 1:<br />
Environmental Chemistry &<br />
Technology<br />
1.1
1.2
Lectures<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L01 Ecotoxicity vs. Contamination vs. Composition <strong>of</strong><br />
River Sediments: the Quest for Determinants <strong>of</strong><br />
Toxic Effects<br />
Luděk Bláha, Klára Hilscherová, Tomáš Čáp, Jana Klánová,<br />
Jiří Machát, Ivan Holoubek<br />
Masaryk University, RECETOX<br />
(Research Centre for Environmental Chemistry and Ecotoxicology)<br />
Kamenice 3, CZ62500 Brno, Czech Republic,<br />
blaha@recetox.muni.cz<br />
In this study, we present part <strong>of</strong> the results <strong>of</strong> a large-scale assessment <strong>of</strong> sediments<br />
in the Morava river basin (Zlín region, Czech Republic). Our aims were to<br />
evaluate novel rapid Flash assay, and to identify key sediment characteristics beyond<br />
the toxicity. Sediments from 14 localities (sampled 4-times at springs and autumns <strong>of</strong><br />
2005 and 2006) were analysed for (i) geological and geochemical parameters (Corg,<br />
pH, silt, clay and sand size and % etc.), (ii) dominant contaminants (13 metals by<br />
ICP-MS, 16 US EPA PAHs, 14 PCBs and 9 OCPs by GC-MS and HPLC-UV/FD),<br />
and (iii) ecotoxicity (eluate toxicity with Vibrio fisheri, whole-sediment toxicity with<br />
the Flash assay, in vitro tests for dioxin toxicity, estrogenicity, mutagenicity etc.).<br />
Our critical evaluation <strong>of</strong> the Flash (based on a broad number <strong>of</strong> sediment samples)<br />
revealed good applicability <strong>of</strong> this whole-sediment test. However, we have found<br />
only minor correlations with the total levels <strong>of</strong> contaminants, and exchangable H+<br />
was the only parametr (from more than 80 evaluated) that correlated with the toxicity.<br />
We conclude that ecotoxicity testing <strong>of</strong> the whole sediments is needed to obtain<br />
key data for complex risk evaluation, and rapid contact Flash assay may serve these<br />
purporses. Supported by the EU (FP6 project ECODIS, No. 518043-1), and by the<br />
Czech grants INCHEMBIOL (No. VZ0021622412) and ENVISCREEN (2B08036).<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L02 Degradation Products <strong>of</strong> Synthetic Polymers as<br />
Emerging Environmental Contaminants<br />
1.<br />
Josef Čáslavský, Milada Vávrová, Daniela Mácová,<br />
Ludmila Mravcová<br />
Institute <strong>of</strong> Chemistry and Technology <strong>of</strong> Environmental Protection, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
caslavsky@fch.vutbr.cz<br />
Synthetic polymers are widely used due to their excellent properties which<br />
can be “tailored” with respect to their planned use. The worldwide production <strong>of</strong><br />
synthetic polymers is constantly increasing and these materials are used in a wide<br />
range <strong>of</strong> products. At the end <strong>of</strong> the product life cycle great part <strong>of</strong> the polymers is<br />
disposed on the waste dumps, where they remain usually for quite a long time and<br />
undergo various environmental degradation mechanisms. Due to huge amount <strong>of</strong><br />
produced polymers it is advisable to evaluate the polymer degradation pathways,<br />
to identify the degradation products and to evaluate their possible environmental<br />
effects.<br />
In this study we focused our attention on the degradation mechanism and identification<br />
<strong>of</strong> degradation products <strong>of</strong> polyurethane foams, whose biodegradability<br />
was enhanced by the addition <strong>of</strong> biodegradable and bio-originated filler.<br />
Keywords: synthetic polymers, environmental degradation
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L03 Usage <strong>of</strong> Gas Chromatography and IMS<br />
Detection for Evaluation <strong>of</strong> Polymer Barrier<br />
Material Properties<br />
J. Dvořáková, I. Mašek<br />
VOP-026 Šternberk, divison VTÚO, Veslařská 230, 637 00 Brno<br />
dvorakova.j@vtuo.cz<br />
Polymer barrier property against the highly toxic agents and industrial harmful<br />
substance is the phenomenon, which adjudicate about the quality <strong>of</strong> every protection<br />
means. By selection <strong>of</strong> the suitable polymer materials used for the protection<br />
means is needed to know not only their physical and chemical properties, but<br />
primarily their resistance against the permeation <strong>of</strong> toxic agents under short time<br />
and/or long time contamination in the gaseous and liquid phases. For comparison <strong>of</strong><br />
the barrier materials from resistance against harmful substances the suitable methods<br />
for their evaluation is needed. The developed procedure enables to measure<br />
permeation <strong>of</strong> toxic agents through a given barrier materials. The results <strong>of</strong> permeation<br />
measurement <strong>of</strong> 2,2´-dichlorodiethylsulfide (sulphur mustard, HD) through<br />
polymer membrane will be presented. The gas chromatography was chosen as the<br />
main detection procedure and was supplied by IMS method.<br />
Keywords: ČSN EN ISO 6529, permeation methods, breakthrough time,<br />
liquid extraction, IMS detection<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L04 Complex Essessment <strong>of</strong> Organophosphates<br />
Low Dose Chronic Exposure on Endothelium,<br />
Macrophages, Platelets and Esterases<br />
1.<br />
Ermolaeva E.,Goncharov N., Radilov A., Glashkina L., Mindukshev I.,<br />
Avdonin P., Dobrylko I., Rembovskiy V.<br />
Research Institute <strong>of</strong> Hygiene, Occupational Pathology and Human Ecology,<br />
Saint-Petersburg, Russia.<br />
eermolaeva@mail.ru<br />
An attempt was undertaken to estimate a role <strong>of</strong> circulatory hypoxia, cellular<br />
hemostasis and neuropathy target esterase upon the exposure <strong>of</strong> organophosphates<br />
low doses. We studied diisopropyl fluorophosphate, which is known to be a cause<br />
<strong>of</strong> delayed neuropathy and paraoxon, which is known not to cause this effect. Activities<br />
<strong>of</strong> cholinergic and non-cholinergic esterases <strong>of</strong> rat blood plasma and brain<br />
were investigated, as well as generation <strong>of</strong> reactive oxygen species by peritoneal<br />
macrophages <strong>of</strong> mice, aggregation activity <strong>of</strong> rat platelets, and functional role <strong>of</strong><br />
endothelium <strong>of</strong> rat aorta. The data obtained seem to be non-specific pointing out at<br />
the development <strong>of</strong> non-specific resistance under chronic exposure to organophosphates.<br />
At the same time, there are some qualitative and quantitative differences in<br />
the character <strong>of</strong> action <strong>of</strong> different organophosphates upon various components <strong>of</strong><br />
the process.<br />
Keywords: organophophate, pathogenesis, esterases, cells
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L05 Influence <strong>of</strong> Climate Conditions and Air<br />
Contamination on Village Inhabitants Health<br />
Melánia Feszterová, Slavomíra Kašiarová<br />
Trenčín University <strong>of</strong> A. Dubček, Department <strong>of</strong> public management,<br />
Študentská 2, 911 50 Trenčín, Slovakia<br />
mfeszterova@mail.t-com.sk<br />
The relation between climate conditions, atmosphere quality and health respectively<br />
sicknesses state and style <strong>of</strong> life in the village <strong>of</strong> Kráľovce-Krnišov located in<br />
South Sitno region is discussed in the paper. GIS technologies, landscape – ecology<br />
synthesis, questionnaire methods and statistics were used in the research. In the complex<br />
climate - relief was evaluated from mesoclime: inverse locations, intensity and<br />
direction <strong>of</strong> air flow, exposure climate, air contamination in the area – heating, agriculture<br />
production, transport.<br />
Discussing the relation between environmental health and air pollution, we<br />
can see several negative factors, e.g. a valley climate. Negative influence <strong>of</strong> the environment<br />
is seen on health state: respiratory disease 11 %. asthma 1 %, influenced by<br />
traffic, diseases caused by increased stress conditions <strong>of</strong> amplitude changes. Contamination<br />
(allergens, pesticides) may come through valley flow 15 % <strong>of</strong> inhabitants<br />
have dermatic problems, 18 % suffers from frequent influenza. The evaluation <strong>of</strong><br />
resident climate showed the presence <strong>of</strong> stress (20 %), cordial diseases (7 %) and hypertension<br />
(22 %). Statistical interpretation showed increased presence <strong>of</strong> diseases<br />
among inhabitants aged between 41–60 years<br />
The village has taken part in the programme “Rural Revitalisation” and the<br />
project education programme at elementary school, which regards environmental<br />
health.<br />
Keywords: contamination village, air, environmental health<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L06 Integration Metallomics, Proteomics and<br />
Transcriptomics in Environmental Issues<br />
1.10<br />
J. L. Gomez-Ariza, T. Garcia-Barrera, M. Gonzalez-Fernandez, J. Lopez-Barea<br />
and C. Pueyo *<br />
Department <strong>of</strong> Chemistry and Material Science, University <strong>of</strong> Huelva, 21007-Huelva, * Department<br />
<strong>of</strong> Biochemistry and Molecular, University <strong>of</strong> Cordoba, 14071-Cordoba, Spain<br />
Metallomics is related to metal-biomolecules characterization in tissues from<br />
environmental bioindicators based on multidimensional methods that combine orthogonal<br />
chromatographic with mass spectrometry and inductively coupled plasma<br />
mass spectrometry (ICP-MS). The integration <strong>of</strong> these analytical methods with the<br />
proteomic approach provides a powerful tool for environmental issues deciphering.<br />
When genetic homology between model organisms, e.g. Mus musculus, and bioindicator<br />
organisms, such as Mus spretus, is checked, important consequences can be<br />
drawn in connection to environmental metallomics, proteomics and transcriptomics.
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L07 Heavy Metals in Solid Immisions in the Vicinity<br />
<strong>of</strong> Iron Ore Mining and Processing Plant in<br />
Nižná Slaná<br />
J. Hančuľák, E. Fedorová, O. Šestinová,<br />
T. Špaldon, P. Slančo, J. Brehuv<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> the Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice, Slovak Republic<br />
hanculak@saske.sk<br />
The contribution deals with the evaluation <strong>of</strong> dust fallout monitoring, which<br />
was focused on heavy metals. The results from the years <strong>of</strong> 2001–2007 are introduced.<br />
The monitoring has been realised in the vicinity <strong>of</strong> mining and siderite processing<br />
plant. The siderite feed is treated by thermal technologies. Besides <strong>of</strong> gaseous<br />
emissions the plant also produces the solid ones compound <strong>of</strong> iron oxides and<br />
other heavy metals. The dust fallout was monitored by means <strong>of</strong> 17 sampling points<br />
located maximally up to 8 km from main source <strong>of</strong> pollution. After comparison<br />
with other localities, the monitored area is mostly loaded by heavy metals, which<br />
come from siderite feed, i.e. namely Fe, Mn and As. The highest values <strong>of</strong> deposition<br />
were detected on sampling points situated in the main flow <strong>of</strong> air, in the central<br />
part <strong>of</strong> valley. Thus, loads <strong>of</strong> individual sampling points are very different. Applied<br />
measuring methods and dust fallout analyses enable matter-<strong>of</strong>-fact evaluation <strong>of</strong><br />
immission loading in given area.<br />
Keywords: heavy metals, immisions, dust fallout<br />
1.11
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L08 Comparison <strong>of</strong> Energy Dispersive X-RAY<br />
Fluorescence Spectrometry, Inductively<br />
Coupled Plasma Optical Emission Spectrometry<br />
and Laser Ablation with Plasma Spectrometry<br />
and Laser Ablation with Plasma Spectrometry<br />
in the Elemental Analysis <strong>of</strong> Experimentally<br />
Contaminated Archive Agricultural Soils<br />
1.12<br />
Ivona Hubová<br />
Department <strong>of</strong> Chemistry<br />
Masaryk University, Brno 62500, Czech Republic<br />
1 @mail.muni.cz<br />
Methods for direct analysis are favored for the determination <strong>of</strong> total elemental<br />
content in agricultural soils over the solution analysis based methods, as the latter<br />
require the use <strong>of</strong> time consuming decomposition procedures accompanied by<br />
unfavourable processes such as sample loss and contamination. Usually, X-ray fluorescence<br />
(XRF) spectrometry belongs to methods routinely used for this purpose.<br />
Nowadays, laser ablation inductively coupled plasma optical/mass spectrometry<br />
(LA-ICP-OES/MS) still represent methods that are being investigated and gradually<br />
improved rather than used for reliable routine quantification. Experimentally contaminated<br />
agricultural soils that belong to archived materials <strong>of</strong> the Central Institute<br />
for Supervising and Testing in Agriculture (UKZUZ), Brno, Czech Republic were<br />
used to compare capabilities <strong>of</strong> energy dispersive XRF and ICP-OES <strong>of</strong> solutions obtained<br />
by means <strong>of</strong> decomposition with HF and HClO 4. Bioavailability <strong>of</strong> Cr, Ni, Cu,<br />
Zn, Pb was examined using sequential extraction procedures. Finally, LA-ICP-OES<br />
method was established for analysis <strong>of</strong> contaminated soils. Certified reference material<br />
<strong>of</strong> soil (GBW07406) was employed to verify reliability <strong>of</strong> methods. Analysis <strong>of</strong><br />
pulverized samples by LA-ICP-OES/MS poses advantages and shortcoming at the<br />
same time. Advantages include a possibility <strong>of</strong> preparation <strong>of</strong> calibration samples<br />
<strong>of</strong> arbitrary composition, matrix matching and sample dissolution, while problems<br />
involve sometimes laborious preparation <strong>of</strong> suitable compact targets and their satisfactory<br />
homogeneity.<br />
Keywords: laser ablation inductively coupled plasma mass spectrometry,<br />
soil analysis
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L09 Tissue-Specific Distribution and Accumulation<br />
<strong>of</strong> Organochlorine Pollutants in Selected<br />
Raptor Species from the Czech Republic<br />
Radim Lána, Milada Vávrová,<br />
Vladimír Večerek, Stanislav Kráčmar<br />
ICTEP, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkynova 118, 61200 Brno, Czech Republic<br />
e-mail: lana@fch.vutbr.cz<br />
The issue <strong>of</strong> environmental contamination by persistent organic pollutants<br />
(POPs) has been an object <strong>of</strong> investigation for more than three decades. Despite<br />
many efforts to ban or reduce their use, POPs continue to found in almost all parts <strong>of</strong><br />
the global ecosystem. One <strong>of</strong> the most threatened animal species (besides humans)<br />
are predators, since they top the food chains within which most POPs are accumulated.<br />
Our comprehensive study is focused on the determination <strong>of</strong> organochlorine<br />
POPs (polychlorinated biphenyls and organochlorine pesticides) in the tissues <strong>of</strong><br />
three raptor species from the Czech Republic. Several specimens <strong>of</strong> cormorant, grey<br />
heron, and common buzzard have been investigated in order to asses the distribution<br />
<strong>of</strong> monitored contaminants among individual tissues and potential intra- and<br />
interspecies differences. As for aquatic species investigated, a complex monitoring<br />
<strong>of</strong> the POP levels in fish and sediment samples from the specimen habitat complements<br />
our results which are a clear illustration <strong>of</strong> the bioaccumulation <strong>of</strong> POPs in the<br />
environment. Our findings are comparable to other similar studies and surveys.<br />
Keywords: polychlorinated biphenyls, pesticides, cormorant, buzzard, heron<br />
1.1
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L10 CBRN Terrorism and International Legal<br />
Constraints<br />
1.1<br />
Jiří Matoušek<br />
Masaryk University, Faculty <strong>of</strong> Sci., EU Res. Ctre <strong>of</strong> Excellence for Environ. Chemistry and<br />
Ecotoxicology, Kamenice 126/3, CZ-625 00 Brno, Czech Republic<br />
matousek@recetox.muni.cz<br />
End <strong>of</strong> the 20 th century was marked with shift <strong>of</strong> “classical” forms <strong>of</strong> terrorism,<br />
using firearms, explosives and incendiaries to CB agents, while using radionuclides<br />
and improvised nuclear explosive devices are expected. Worldwide community<br />
has been accepting legal instruments in constraining various form <strong>of</strong> terrorism<br />
with delay, usually after they have been executed. Existing 13 global multilateral<br />
conventions on combating international terrorism are thoroughly analysed starting<br />
with the oldest on <strong>of</strong>fences on board aircraft (1963) till the newest on suppression <strong>of</strong><br />
nuclear terrorism (2005) that is not yet in force. All these documents are analysed in<br />
association with the CBRN-terrorism.<br />
Antiterrorist system <strong>of</strong> UN, developed in connection with illicit trade with<br />
drugs, weapons, human beings, money laundering and corruption, including respective<br />
UN organs is characterised, relevant actions by the UN Security Council<br />
are stressed.<br />
Antiterrorist agreements and other legal documents <strong>of</strong> regional and similar<br />
organisations, (such as Organisation <strong>of</strong> American States. Council <strong>of</strong> Europe, European<br />
Union, NATO, Organisation <strong>of</strong> African Unity, Commonwealth <strong>of</strong> Independent<br />
States, Organisation <strong>of</strong> Islamic Conference, and like) are analysed.<br />
Lessons learned for the emergency preparedness and protection <strong>of</strong> population<br />
are presented.<br />
Keywords: CBRN terrorism, international legal constraints
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L11 Applicability <strong>of</strong> a High Performance Chelation<br />
Ion Chromatographic Method to the<br />
Determination <strong>of</strong> Aluminium in Antarctic<br />
Surface Seawater<br />
Juliette Tria, Pavel Nesterenko,<br />
Andrew Bowie, Edward Butler, Paul Haddad<br />
ACROSS, School <strong>of</strong> Chemistry, University <strong>of</strong> Tasmania,<br />
Private Bag 75, Hobart, Tasmania, Australia, 7001<br />
jtria@utas.edu.au<br />
Oceanographers use surface aluminium concentrations in open-ocean seawater<br />
as a tracer to fingerprint the location and magnitude <strong>of</strong> atmospheric dust<br />
deposition. It has become increasingly important to understand the role that such<br />
deposition plays in supplying trace elements to surface waters and consequently the<br />
effects such episodic supply has on moderating biological processes.<br />
FIA has generally been used for the real time analysis <strong>of</strong> aluminium in surface<br />
seawater, however, the technique is not always robust and preconcentration is<br />
required. This paper presents a discussion on recent developments <strong>of</strong> a high performance<br />
chelation ion chromatographic (HPCIC) technique, using post column<br />
reaction followed by fluorescence detection, as an alternative for shipboard determination<br />
<strong>of</strong> aluminium. Separation <strong>of</strong> aluminium was achieved using iminodiacetic<br />
acid functionalised silica and fluorescence detection <strong>of</strong> the Al-lumogallion complex<br />
was chosen based on its excellent sensitivity. Preliminary investigation into detection<br />
limits for the optimised HPCIC system have shown sensitivity to be in the low<br />
ng L -1 region, without preconcentration and for a 20 µL sample volume. The applicability<br />
<strong>of</strong> the HPCIC system to the analysis <strong>of</strong> surface seawater taken from the Ross<br />
Sea, Antarctica was evaluated.<br />
Keywords: aluminium<br />
1.1
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L12 Direct Analysis in Real Time–Time-<strong>of</strong>-Flight<br />
Mass Spectrometry: Analysis <strong>of</strong> Pesticides and<br />
Enviromental Contaminans<br />
1.1<br />
Lukáš Václavík, Jakub Schůrek, Tomáš Čajka, Jana Hajšlová<br />
Institute <strong>of</strong> Chemical Technology, Prague, Faculty <strong>of</strong> Food and Biochemical Technology,<br />
Department <strong>of</strong> Food Chemistry and Analysis<br />
Technická 5, 166 28 Prague 6 – Dejvice, Czech Republic<br />
lukas.vaclavik@vscht.cz<br />
DART (Direct Analysis in Real Time) represents a new type <strong>of</strong> ion source working<br />
under ambient conditions and ground potential. The sample components are<br />
ionised in the beam <strong>of</strong> neutral metastable species after placing the sample (liquid,<br />
solid, or gaseous) between the ion source and mass spectrometer. Until now, DART<br />
has been demonstrated to be a useful tool for rapid screening <strong>of</strong> a wide range <strong>of</strong><br />
chemicals including pharmaceuticals, explosives, drugs <strong>of</strong> abuse and various natural<br />
compounds.<br />
Coupling <strong>of</strong> DART ion source to a high-resolution time-<strong>of</strong>-flight mass spectrometer<br />
(TOFMS) allows rapid sample characterisation. Real-time information on<br />
sample composition (mass spectrum) is obtained continuously; time needed for<br />
analysis <strong>of</strong> one sample is reduced to tens <strong>of</strong> seconds. Moreover, high-resolution<br />
TOFMS capable <strong>of</strong> accurate mass measurement enables analyte identity confirmation<br />
and identification <strong>of</strong> “unknowns” via calculation <strong>of</strong> elemental composition.<br />
In this presentation, the potential <strong>of</strong> DART-TOFMS system to identify/quantify<br />
a wide range <strong>of</strong> pesticides in various products and matrices will be demonstrated.<br />
The possibility to monitor some groups <strong>of</strong> environmental pollutants will be also<br />
discussed.<br />
Keywords: DART-TOFMS, pesticides, pollutants
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
1-L13 The Using <strong>of</strong> Pine-Needles, Bryophytes and<br />
Sponges as Bioindicators for the Evaluation <strong>of</strong><br />
Persistent Organic Pollutants Environmental<br />
Levels<br />
M. Vávrová, R. Lána, M. Hroch,<br />
I. Hlaváčková, J. Čáslavský, B. Tremlová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry;<br />
Purkyňova 118, 61200 Brno<br />
vavrova@fch.vutbr.cz<br />
The study submitted dealt with problems <strong>of</strong> the utilization <strong>of</strong> spruce, pine and<br />
fir needles, bryophytes and chosen sponges for the evaluation <strong>of</strong> ecosystems’ primary<br />
organic pollutants (POPs) load. Samples were being taken in several locations.<br />
Out <strong>of</strong> the POPs group, there were chosen organochlorine pesticides (DDT and its<br />
metabolites, γ-HCH and HCB), polychlorobiphenyls (PCB) and polybromodiphenylethers<br />
(PBDE). The isolation <strong>of</strong> tracked analytes from plant matrices was performed<br />
by means <strong>of</strong> extraction processes, namely via sonication and Soxhlet extraction,<br />
extract purification via column chromatography in the blending column, the<br />
very determination was performed by means <strong>of</strong> gas chromatography with μECD<br />
detection and the confirmation determination by means gas chromatography and<br />
mass detection. On the basis <strong>of</strong> results acquired, it was stated that needles contamination<br />
level is not negligible, the highest contamination levels showed PCB. Conifers<br />
and bryophytes’ results attained also lead to the conclusion that the secondary<br />
contamination comes from the atmosphere, which is evident namely from 100 % CB<br />
28 contamination; from OCHP there were dominant 4,4´-DDT and 4,4´-DDE, g-HCH<br />
and HCB, PBDE contamination was not so frequent and its levels were considerably<br />
lower than those <strong>of</strong> other POPs. In sponges, only PCB were investigated, their levels<br />
ranged between 1–80 µg/kg, concerning the dry matter. Based on finding attained,<br />
it can be claimed that bio-indicators evaluated are appropriate for POPs contamination<br />
level observation.<br />
Acknowledgement: Financial support from Ministry <strong>of</strong> Education, Youth and<br />
Sports under MSM 6215712402 is greatly appreciated.<br />
Keywords: primary organic pollutants, extraction, separation methods,<br />
needles, bryophytes, sponges<br />
1.1
1.1
Posters<br />
1.1
1.20
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P01 Ultra Trace Determination <strong>of</strong> Silver<br />
in Preconcentrated Water Samples by<br />
Electrothermal Atomic Absorption<br />
Spectrometry<br />
Seyyed Hamid Ahmadi, Javad Didevar Asl<br />
Chemistry & Chemical Engineering Research Center <strong>of</strong> Iran<br />
P.O. Box 14335-186, Tehran, Iran<br />
ahmadi@ccerci.ac.ir<br />
An efficient microextraction technique was used for detection <strong>of</strong> silver ultratrace<br />
quantities in water samples using the dispersive liquid–liquid microextraction<br />
(DLLME), followed by the electrothermal atomic absorption spectrometry (ETAAS).<br />
In this technique, a mixture containing ethanol (disperser solvent), CCl 4 (extraction<br />
solvent) and sodium diethyldithiocarbamate(chelating agent), was rapidly injected<br />
by a syringe into the sample, spiked with silver. The silver ions reacted with the<br />
chelating agent and were extracted into the fine droplets <strong>of</strong> CCl 4 . After centrifugation,<br />
the fine CCl 4 droplets sedimented at the bottom <strong>of</strong> the conical test tube. The<br />
concentration <strong>of</strong> enriched analyte in the sedimented phase, was determined by<br />
ETAAS. Effective parameters such as the type and the volume <strong>of</strong> the solvents, the<br />
extraction time, the salt effect, pH and the quantity <strong>of</strong> the chelating agent were optimized.<br />
Under the optimum conditions, the enrichment factor <strong>of</strong> 150 was obtained<br />
from only a 5.00 mL water sample. The calibration graph was linear in the range <strong>of</strong><br />
0.05–1 μg L −1 with the detection limit <strong>of</strong> 0.02 μg L −1 . The silver recoveries in natural<br />
water samples at the spiking level <strong>of</strong> 0.20 and 0.40 μg L −1 varied from 94.5 to 103.0.<br />
The main DLLME advantages combined with ETAAS were simplicity <strong>of</strong> operation,<br />
rapidity, low cost, high-enrichment factor and good repeatability.<br />
Keywords: silver, wateranalysis<br />
1.21
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P02 Removal <strong>of</strong> 2-mercaptobenzothiazole<br />
from Synthetic Wastewater<br />
1.22<br />
Beáta Almásiová, Ján Derco,<br />
Angelika Kassai<br />
Slovak University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Institute <strong>of</strong> Chemical and Environmental Engineering,<br />
Radlinského 9, 812 37 Bratislava 1, Slovak Republic<br />
beata.almasiova@stuba.sk<br />
2-Mercaptobenzothiazole (MBT) is the most important member <strong>of</strong> the benzothiazole<br />
group <strong>of</strong> heterocyclic aromatic compounds. This xenobiotic compound is<br />
used mainly in the manufacture <strong>of</strong> rubber additive chemicals but also has other<br />
uses, notably as a corrosion inhibitor. It is known as a widespread, toxic and poorly<br />
biodegradable pollutant. It is able to pass conventional treatment systems, widespread<br />
with surface and underground waters and enters into organisms.<br />
We were studied degradation <strong>of</strong> 2-mercaptobenzothiazole with ozone. The feasibility<br />
<strong>of</strong> utilisation <strong>of</strong> ozonation process for reduction <strong>of</strong> concentration <strong>of</strong> MBT<br />
was investigated in laboratory scale equipment. The experiments were performed<br />
in bubble ozonation column. The process efficiency was considerably influenced<br />
by time <strong>of</strong> ozonation. The content <strong>of</strong> MBT in synthetic wastewater containing MBT<br />
decreased more than 5 times after 15 minutes <strong>of</strong> ozonation performed at 70 % <strong>of</strong> the<br />
maximum power <strong>of</strong> ozone generator. Total removal <strong>of</strong> 2-MBT from the sample was<br />
achieved by ozonation.<br />
Respirometric tests confirmed that this compound is not biodegradable. At the<br />
concentration above 100 mg/l it can inhibit demand <strong>of</strong> biodegradable compounds.<br />
MBT is not consumed by non adapted activated sludge. Partial decay <strong>of</strong> MBT by<br />
microorganism was observed with adapted activated sludge within 8 days. The adsorption<br />
tests confirmed the ability <strong>of</strong> MBT to adsorb on surface <strong>of</strong> activated sludge.<br />
This ability <strong>of</strong> MBT depends significantly on the type <strong>of</strong> activated sludge.<br />
Keywords: adsorption, biodegradability, 2-mercaptobenzothiazole, ozonation
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P03 Health Risk Assessment by Indoor Air Quality<br />
Monitoring<br />
Ekaterina Andreeva, Ivan Mašek, Milada Vávrová<br />
Brno University <strong>of</strong> Technology, ICTEP, Czech Republic<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
xcandreeva@fch.vutbr.cz<br />
Today the chemical substances are used during any kind <strong>of</strong> work, thus creating<br />
certain chemical risks at many workplaces all over the world. Their quantity is being<br />
estimated by few <strong>of</strong> thousands, which is permanently growing.<br />
Therefore the system approach for predicting risks from work with dangerous<br />
substances and following safety rules are matters <strong>of</strong> high priority. One <strong>of</strong> the elements,<br />
the quality <strong>of</strong> indoor air, was chosen. The purpose <strong>of</strong> this study is to develop<br />
the system <strong>of</strong> steps for health risk assessment at workplaces in university chemical<br />
laboratories.<br />
In particular, the aim <strong>of</strong> the study is the group <strong>of</strong> the priority organic pollutants<br />
in the environment – volatile organic compounds, especially mostly used in the<br />
laboratory different kinds <strong>of</strong> solvents (hexane, dichloromethane, acetone, acetonitrile,<br />
ethanol etc.).<br />
According to some sources, they act not only as central nervous system depressants,<br />
but also affect the human reproduction.<br />
The different working areas (laboratory <strong>of</strong> organic chemistry, environment matrix<br />
sampling, personal sampling) are chosen. In these areas measurement <strong>of</strong> concentration<br />
<strong>of</strong> the solvents are conducting by means <strong>of</strong> diffusive sampling system<br />
Radiello with following GC with FID or GC-MS analysis.<br />
Keywords: workplace safety, dangerous substance, indoor air<br />
1.2
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P04 Nitrogen in breeding laying hens<br />
and environment protection<br />
1.2<br />
Mária Angelovičová, Marek Angelovič, Miroslava Kačániová,<br />
Daniela Liptaiová, Kamil Močár, Dávid Št<strong>of</strong>an<br />
Department <strong>of</strong> Food Hygiene and Safety, Faculty <strong>of</strong> Biotechnology and Food Sciences,<br />
Slovak University <strong>of</strong> Agriculture, Tr. A. Hlinku 2, 949 76 Nitra,<br />
maria.angelovicova@uniag.sk<br />
High nutrient balances exert pressures on the environment in terms <strong>of</strong> an<br />
increased risk <strong>of</strong> leaching <strong>of</strong> nitrates to groundwater.<br />
We realized experiments with laying hens, which ingested feed mixture<br />
with different protein content. It is soya cereal type assigned for laying hens.<br />
The laying hens ingested fodder ad libitum.<br />
Within experiments were researched: protein contents in feed mixture in one<br />
kg, excreted nitrogen (N) in dropping per bird and day (chemical analysis – Kjeldahl<br />
method and calculation).<br />
After ingestion <strong>of</strong> feed mixture with protein content 173.10 g per kg was N<br />
content in dropping from 1.80 to 1.95 g per bird and day. The laying hens, which<br />
fed feed mixture with protein contents 146.12 or 146.68 g per kg excreted the N in<br />
dropping in range 1.35 to 1.40 g per bird and day. From these results follow that near<br />
decrease protein contents in feed mixture from 173.10 to 146.12 or 146.68 g per kg is<br />
possibility <strong>of</strong> N decrease in excreted dropping at laying hens about 25.0 to 28.21%<br />
per bird and day.<br />
The research results about N in breeding <strong>of</strong> laying hens in relationship to environment<br />
protection confirmed the possibility its decrease. One <strong>of</strong> the possibilities is<br />
decrease <strong>of</strong> protein contents in feed mixture. With decrease <strong>of</strong> protein content<br />
in feed mixture from 173.10 into 146.68 or 146.12 g per kg (about 15.26 to 15.59%) is<br />
possibility <strong>of</strong> decrease <strong>of</strong> excreted N in dropping at laying hens about 25 to 28.21%.<br />
Keywords: nitrogen, dropping, layers, feed mixture, protein
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P05 Testing <strong>of</strong> Various Sorbents for Copper Removal<br />
from Acid Mine Drainage<br />
Magdaléna Bálintová, Natália Kovaliková<br />
Civil Engineering Faculty, Technical University <strong>of</strong> Košice,<br />
Institute <strong>of</strong> Building and Environmental Engineering,<br />
Vysokoškolská 4, 042 00 Košice<br />
magdalena.balintova@tuke.sk<br />
Elimination <strong>of</strong> the consequences <strong>of</strong> mining activities belongs to the most serious<br />
environmental problems nowadays. Acid mine drainage (AMD) with high<br />
metal concentrations and usually with low value <strong>of</strong> the pH (about 2–4) is mainly<br />
a result <strong>of</strong> chemical oxidation <strong>of</strong> sulphides and other chemical processes in overflowed<br />
mines, mining waste dumps and tailings. This water may transfer various<br />
heavy metals in a dissolved form, such as Fe, Cu, Al.<br />
The paper deals with utilization <strong>of</strong> four types sorbents (zeolite, active carbon,<br />
turf brush PEATSORB and universal crushed sorbent ECO-DRY) for coper removal<br />
from AMD Smolník and presents their influence on Cu decreasing under various<br />
conditions. The change <strong>of</strong> pH has been monitored, too. All sorbents slightly decreased<br />
pH (pH AMD was 3,8) that was positive fact because pH above 4 is connected<br />
with precipitation <strong>of</strong> heavy metals.<br />
Keywords: acid mine drainage, copper, sorbents<br />
1.2
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P06 Influence <strong>of</strong> Composite Sorbent for Selected<br />
Elements Content in the Sediment Load <strong>of</strong> a<br />
Water Reservoir and Mine Sludge Basin<br />
1.2<br />
Ján Brehuv, Oľga Šestinová, Tomislav Špaldon,<br />
Pavel Slančo, Jozef Hančuľák, Erika Fedorová<br />
Istitute <strong>of</strong> Geotechnics <strong>of</strong> Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, 045 53 Ko3ice, Slovak Republik<br />
E-mail:brehuv@saske.sk<br />
The paper contains information about results <strong>of</strong> the laboratory experiments.<br />
They were focused on decrease <strong>of</strong> content <strong>of</strong> selected contaminants (heavy metals)<br />
in sediment load <strong>of</strong> water reservoir and mine sludge basin samples. For experiments<br />
the composite sorbent was used, which contains natural materials with sorption attributes.<br />
The first results <strong>of</strong> influence <strong>of</strong> this sorbent on heavy metals content in the<br />
investigated (examined) samples were obtained. On this base the experiments will<br />
continue.<br />
Keywords: sediment load, water reservoir, sludge basin, composite sorbent,
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P07 Monitoring <strong>of</strong> Different Trace Metals Species<br />
Concentration in Morava River<br />
Lukáš Brulík, Pavel Diviš, Hana Dočekalová and Jiří Machát<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkynova 118, Brno, CZ-61200, Czech Republic<br />
brulik@fch.vutbr.cz<br />
This work summarized results from an experiment in Morava River (Czech<br />
Republic, South Moravia) running during the September 2007 and December 2007.<br />
The concentrations <strong>of</strong> Cd, Cu, Ni, Pb were monitored using different sampling techniques.<br />
Kinetically labile species were measured by DGT (diffusive gradient in thin<br />
films technique), total dissolved and total metal concentrations were monitored using<br />
the conventional sampling techniques. The bioavailable concentrations <strong>of</strong> trace<br />
metals were monitored by application <strong>of</strong> moss bags with Fontinalis Antipyretica<br />
aquatic moss species.<br />
Keywords: Fontinalis Antipyretica, DGT, heavy metals<br />
1.2
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P08 Volatile Degradation Products <strong>of</strong> Polyurethane<br />
Foams<br />
1.2<br />
Josef Čáslavský, Daniela Mácová, Tereza Tobiášová<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
xcmacova @fch.vutbr.cz<br />
Polyurethanes are widely used in many industrial branches. Most <strong>of</strong> their production<br />
represents flexible polyurethane foams. They are also <strong>of</strong>ten deposited on<br />
waste dumps, where they degrade under the influence <strong>of</strong> various environmental<br />
factors; hydrolysis and photolysis are the main degradation mechanisms.<br />
Polyurethane foams were modified by addition <strong>of</strong> biodegradable filler to enhance<br />
their degradation ability. This foam was photo-degraded by UV irradiation.<br />
Volatile photodegradation products were the subjects <strong>of</strong> analysis. These compounds<br />
were adsorbed by Solid Phase Microextraction (SPME) using polyacrylate<br />
and polydimethylsiloxane fibers. Gas chromatography with mass spectrometry was<br />
the method <strong>of</strong> their final analysis.<br />
Keywords: polyuretane foam, volatile degradation products
1-P09 English fro Chemists Can Be pHun<br />
Gabriela Clemensová<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkynova 118, Brno, CZ-61200, Czech Republic<br />
clemensova@fch.vutbr.cz<br />
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
Is it necessary to teach English for specific purposes? Is good knowledge <strong>of</strong><br />
general English enough one needs to be able to communicate? Foreign language<br />
competence can be defined as the ability <strong>of</strong> authentic self presentation in that language.<br />
Accepting this approach to competency we can say that English for specific<br />
purposes has its irreplaceable position in a postsecondary curriculum.<br />
Our mission <strong>of</strong> teaching English for future chemists is more or less challenged<br />
by 3 major phenomena:<br />
1. Absence <strong>of</strong> appropriate teaching materials on the market<br />
2. The different language experience <strong>of</strong> the students who come to our school.<br />
3. The absolute majority <strong>of</strong> our students strongly oppose and almost detest memory<br />
based learning as they are used almost entirely to rely on their ability <strong>of</strong><br />
logical reasoning<br />
4. Last but not least challenge is that the technically oriented students are not such<br />
good “natural speakers”. even in their mother language as the students <strong>of</strong> the<br />
humanities.<br />
The paper describes the approach to these above mentioned issues. Special emphasize<br />
is put on the preparation and use <strong>of</strong> appropriate web based material which<br />
enables to bring the Internet into the classes.<br />
Keywords: English for specific purposes, material preparation, Internet<br />
supported language learning<br />
1.2
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P10 Dynamic Simulation <strong>of</strong> Biological Nitrogen<br />
Removal Processes<br />
1. 0<br />
Lenka Černochová, Ján Derco<br />
Faculty <strong>of</strong> Chemical and Food Technology, Institute <strong>of</strong> Chemical<br />
and Environmental Engineering,<br />
Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, 812 37 Bratislava, Slovakia<br />
lenkacernochova@stuba.sk<br />
The Activated Sludge Model No. 1 (ASM1) was used for modelling <strong>of</strong> biological<br />
stage <strong>of</strong> real wastewater treatment plant (WWTP). Two series <strong>of</strong> diurnal variation<br />
measurements <strong>of</strong> wastewater flow and composition in input and output at<br />
biological stage <strong>of</strong> real WWTP were carried out. The first set <strong>of</strong> measurements was<br />
performed before the reconstruction <strong>of</strong> WWTP (year 2002) and the second one after<br />
the reconstruction (year 2007). The results <strong>of</strong> measurements were transformed into<br />
organic and nitrogen pollution fractions according to ASM1 concept and the database<br />
structure <strong>of</strong> the used simulation program (SIMBA).<br />
In this work is shown utilization <strong>of</strong> simulation program SIMBA in which is included<br />
ASM1 to describe behaviour <strong>of</strong> WWTP. Dynamic simulations were realized<br />
for different operational states. Results <strong>of</strong> dynamic simulations show quite good<br />
agreement between experimental and calculated. Mathematical model was used for<br />
verification <strong>of</strong> steady state design and for prediction effluent concentration values<br />
as well.<br />
Keywords: biological wastewater treatment plant, Activated Sludge Model<br />
No. 1, dynamic simulations, prediction, simulation program
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P11 Application <strong>of</strong> a 6-Mercaptopurine<br />
Functionalised Sorbent for Diffusive Gradients<br />
in Films Technique<br />
Pavel Diviš and Roman Szkandera<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkynova 118, Brno, CZ-61200, The Czech Republic<br />
divis@fch.vutbr.cz<br />
Iontosorb AV a modified bead-form celulose sorbent containing aminoaryl-ßethylsulfone<br />
groups was functionalised by coupling it through an azo group with<br />
6-mercaptopurine. The resulting sorbent was characterised and tested for use in<br />
diffusive gradient in thin films technique.<br />
Keywords: resin, mercury, DGT<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P12 The Determination <strong>of</strong> Methylmercury in Water<br />
Ecosystems<br />
1. 2<br />
H. Doležalová Weissmannová, J. Čáslavský, M. Vávrová,<br />
L. Tuhovčáková<br />
Brno University <strong>of</strong> Ttechnology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno, Czech Republic<br />
dolezalova@fch.vutbr.cz<br />
Environmental contamination by mercury compounds is clearly a growing<br />
problem even today. Mercury is among the most highly bioconcentrated toxic trace<br />
metals in the organisms. Mercury toxicity depends on its chemical form, among<br />
which alkyl mercury compounds are the most toxic. Methylmercury is well known<br />
neurotoxic agents for human and animals. The concern about methylmercury is<br />
based on its effects on ecosystems and human health and alkyl mercury has received<br />
considerable attention because <strong>of</strong> the toxicity <strong>of</strong> methylmercury compounds<br />
(MeHg), the accumulation <strong>of</strong> Hg in biota, and its biomagnification in aquatic food<br />
chains. By reasons <strong>of</strong> the seriousness <strong>of</strong> methylmercury the determination is growing<br />
need for analytical and separation methods. The determination <strong>of</strong> methylmercury<br />
in samples from water ecosystems is not easy; the very low concentrations<br />
together with the presence <strong>of</strong> interfering substances (such as sulphides, humic acids,<br />
amino acids, and proteins) able to strongly bind methylmercury are the main<br />
analytical complications. The main steps to determination <strong>of</strong> methylmercury need<br />
extraction, separation and mercury-specific detection, for these purpose the conventional<br />
technique can be used (GC-ECD, GC-MS, HPLC).<br />
Keywords: methylmercury, chromatography
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P13 Ecotoxicological Testing and Test Methods <strong>of</strong><br />
Chemicals and Waste<br />
H. Doležalová Weissmannová, H. Zlámalová Gargošová<br />
Brno University <strong>of</strong> Ttechnology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno, Czech Republic<br />
dolezalova@fch.vutbr.cz<br />
Ecotoxicology belongs to one <strong>of</strong> the new sciences which emerged as a consequence<br />
<strong>of</strong> the adverse effects <strong>of</strong> technology on complex natural systems. The main<br />
purpose <strong>of</strong> toxicological and ecotoxicological testing is the determination <strong>of</strong> doseeffect.<br />
Ecotoxicological testing involves the prediction <strong>of</strong> the impact <strong>of</strong> very low<br />
concentration <strong>of</strong> a chemical or leached waste. In aquatic ecotoxicological testing the<br />
many organisms can be used (Algae, Crustacea). The standard ecotoxicological tests<br />
with aquatic organisms are used for definition and description <strong>of</strong> environmental<br />
effects <strong>of</strong> chemicals, since most <strong>of</strong> the pollutants are found in the water. The aim <strong>of</strong><br />
this contribution is the comparison <strong>of</strong> the standard test (OECD) and determination<br />
<strong>of</strong> sensitivity <strong>of</strong> testing organism for standard chemical.<br />
Keywords: ecotoxicity, standard OECD tests<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P14 Examining Indoor Aerosols<br />
1.<br />
Adriana Eštoková, Nadežda Števulová, Lenka Kubincová<br />
Technical University <strong>of</strong> Košice, Civil Engineering Faculty,<br />
Institute <strong>of</strong> Building and Environmental Engineering,<br />
Vysokoškolská 4, 042 00 Košice, Slovak Republic<br />
Adriana.Estokova@tuke.sk,<br />
This work is primarily concerned with PM 10 concentrations level and settled<br />
particulate matter in indoor environment assessment as well as with the chemical<br />
composition, size and shape <strong>of</strong> particles investigation.<br />
The indoor particulate matter concentration in various types <strong>of</strong> residential and<br />
non-residential buildings were monitored and compared with Slovak indoor PM 10<br />
limit. The highest mass concentration <strong>of</strong> PM 10 was observed in non-residential public<br />
buildings. The concentrations <strong>of</strong> deposited particles on horizontal surfaces were<br />
measured in residential buildings at various high levels. The trend <strong>of</strong> gradual decreasing<br />
<strong>of</strong> particulate matter occurrence with the raise <strong>of</strong> height was observed.<br />
The collected dust samples were characterized by scanning electron microscopy/energy-dispersive<br />
X-ray analysis (SEM/EDX). The individual particles in irregular<br />
shape <strong>of</strong> the various particle size as well as aggregates <strong>of</strong> ultra-dispersion<br />
particles were observed on the SEM micrographs. The majority <strong>of</strong> dust particles are<br />
non-spherical in shape with strong division <strong>of</strong> the surface. The occurrence <strong>of</strong> the<br />
spherical particles as well as <strong>of</strong> fibrous particles was not obvious. Elemental analysis<br />
was carried out by energy-dispersion x-ray spectroscopy. The trace metal contents<br />
were investigated by atomic absorption spectroscopy. The high mass concentrations<br />
<strong>of</strong> heavy metals were determined. The indoor concentrations <strong>of</strong> magnesium and<br />
calcium because <strong>of</strong> former ambient source existence were investigated too.<br />
Keywords: PM10, dust
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P15 Atmospherical Deposition and Imission Situation<br />
in the Nižná Slaná Area<br />
Erika Fedorová, Jozef Hančuľák, Oľga Šestinová,<br />
Ján Brehuv, Tomislav Špaldon<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> the Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, 043 53 Košice,<br />
fedorova@saske.sk<br />
The Siderit plant Nižná Slaná is exploiting the iron ore – siderit with the local<br />
deposit. The plant is interesting with air pollution from different sources.<br />
The biggest <strong>of</strong> this sources is chimney which is 120 m high. The dust fallout<br />
was monitored by means <strong>of</strong> 17 sampling points located maximally up to 8 km from<br />
main source <strong>of</strong> pollution. The pollutants have municipal as well as industrial origin.<br />
The range <strong>of</strong> plant emission by chemical data processing and by their comparision<br />
with dust deposition was investigated. Finally, the imission action <strong>of</strong> the plant on its<br />
wider surroundings was found out by this way.<br />
In the present time the communal and the natural sphere causes the air pollution.<br />
The main are line and area sources.<br />
Key words: atmospherical deposition, imission and emission situation, dust,<br />
solid air pollutants<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P16 The Natural and Anthropological Sources <strong>of</strong><br />
the Halciansky Water Reservoir Contamination<br />
1.<br />
Melánia Feszterová, Slavomíra Kašiarová<br />
Trenčín University <strong>of</strong> A. Dubček, Department <strong>of</strong> public management,<br />
Študentská 2, 911 50 Trenčín, Slovakia<br />
mfeszterova@mail.t-com.sk<br />
The aim <strong>of</strong> the paper is to identify natural and anthropological sources <strong>of</strong> contamination<br />
within the model area <strong>of</strong> Halčiansky water reservoir, which is part <strong>of</strong><br />
Belianske reservoirs basin in Banská Štiavnica region. Theoretical scopes such as relief,<br />
geological, climate and soil conditions, fauna, flora, were deliberated. Samples<br />
from six sites taken in terrain (in 2006–2007) were analysed spectrophotometrically<br />
(HACH DR 2000, Horiba). Natural and anthropological contamination sources were<br />
processed by basic GIS s<strong>of</strong>tware (Geomedia pr<strong>of</strong>essional, Microstation, Idrisi).<br />
The results showed: pH, conductivity, turbidity, temperature, salinity meet the<br />
– –1 limits <strong>of</strong> the state norm No. 491/2002 in codex. The content <strong>of</strong> NO (0,07–0,43 m gl )<br />
3<br />
exceeded the limit, especially at sites close to surrounding meadows, fields and<br />
– –1 3– pasturelands. The NO concentration (0,004–0,212 mg l ) and PO4 concentration<br />
2<br />
(0,7–1,8 mg l –1 ) exceeded the norm limits during the whole research period at all<br />
2– studied sites. The SO concentration didn’t exceed norm limits. CHSKCr measures<br />
4<br />
didn’t meet norm limits at all sites during the research period (20–2800 mg.l –1 ).<br />
Lixiviums from organically reach soils, forest and moss, pesticides, fertilizers,<br />
field dung-hills, pasture-land, grasslands, illegal cesspit waste from residential<br />
zones, sewage waters from lodge and cabin areas as well as illegal dumping<br />
grounds were identified as the main contamination sources.<br />
Keywords: contamination, water reservoir, GIS s<strong>of</strong>tware
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P17 Biomodified Forms <strong>of</strong> Zeolites and their<br />
Environmental Application<br />
Ľubica Fortunová, Mária Reháková, Silvia Čuvanová, Lucia Gaberová,<br />
Mária Kušnierová<br />
Faculty <strong>of</strong> Science, P. J. Šafárik University,<br />
Moyzesova 11, 041 54 Košice<br />
maria.rehakova@upjs.sk<br />
Natural zeolite <strong>of</strong> clinoptilolite type from East Slovakian deposit in Nižný<br />
Hrabovec has been studied with respect to its feasibility <strong>of</strong> application in environmental<br />
area in combination with biotechnological methods for decreasing the residual<br />
content <strong>of</strong> heavy metals and other toxic compounds in industrial contaminated<br />
soils.<br />
The aim <strong>of</strong> the study was enlarging <strong>of</strong> clinoptilolite sorption surface by effect<br />
<strong>of</strong> microorganisms Thiobacillus ferrooxidans and obtaining more effective results <strong>of</strong><br />
its application in the process <strong>of</strong> the reduction <strong>of</strong> the content <strong>of</strong> toxic substance residua<br />
in industrially contaminated soils. By using the microorganisms the changes <strong>of</strong><br />
the surface, total volume <strong>of</strong> the cavities and bioextraction on model forms <strong>of</strong> natural<br />
clinoptilolite with a content <strong>of</strong> some heavy metals was confirmed.<br />
Thiobacillus ferrooxidans is used in mineral technologies in the process <strong>of</strong> extraction<br />
<strong>of</strong> Cu, Fe and other metals that are present in soil in low concentrations. The<br />
combination <strong>of</strong> the natural zeolites and bioremediated technologies is perspective<br />
environmental alternation <strong>of</strong> decrease the residua content <strong>of</strong> the toxic substance in<br />
heavily contaminated soils in industrial areas.<br />
Keywords: zeolite, clinoptilolite, heavy metals, bioremediation<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P18 Distribution Patterns <strong>of</strong> Organic Pollutants<br />
in Brno Lake with Respect to Its Depositional<br />
History<br />
1.<br />
Eva Francu, Jan Schwarzbauer, Mathias Ricking,<br />
Radim Lána, Pavel Muller, Juraj Francu<br />
Czech Geological Survey, Leitnerova 22, 658 69 Brno,<br />
eva.francu@geology.cz<br />
Brno Lake is situated on the Svratka River and belongs to the most important<br />
reservoirs in the Southern Moravia region. A pilot study focused on the occurrence<br />
<strong>of</strong> risk elements and organic pollutants in vertical pr<strong>of</strong>iles <strong>of</strong> the sediment layers has<br />
been carried out. A Th-U(Ra)-K gamma-spectrometric survey showed that a probable<br />
source <strong>of</strong> these elements is in the weathered granitic material <strong>of</strong> the Brno Massif<br />
with negligible contribution from the U-mines. The sediment dating using Cs 137<br />
indicates the position <strong>of</strong> the 1986 1961–2. Analyses <strong>of</strong> 1–3 m deep probes reveal the<br />
distribution patterns <strong>of</strong> organic carbon, sulphur, PAHs and PCBs, and provide a tentative<br />
pattern related to depositional history and flow rate. The geochemical pr<strong>of</strong>iles<br />
show a general upward increase in eutrophycation and organic matter accumulation<br />
associated with increased cyanobacterial blooms. The sum <strong>of</strong> nine PAHs <strong>of</strong>ten<br />
exceeds the 10 mg/kg EPA limit value and their pyrogenic character suggests an<br />
origin in low-quality fuel and furnaces used in the villages and recreational facilities<br />
in the watershed. PCBs with dominating congeners 138, 153 and 180, on the other<br />
hand, show upward increase with some stagnation during last decade. The integration<br />
<strong>of</strong> the environmental geochemical archive into the sedimentological restoration<br />
<strong>of</strong> depositional and erosional sequence <strong>of</strong> events provides a new dynamic view <strong>of</strong><br />
the pollution in historical terms.<br />
Keywords: depositional history, organic pollutants
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P19 New Resin Gel for Diffusive Gradients in Thin<br />
Film (DGT) Technique<br />
M. Gregušová, B. Dočekal, H. Dočekalová<br />
Department <strong>of</strong> Environmental Chemistry and Technology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology, Purkyňova 118, 612 00 Brno, Czech Republic<br />
xcgregusova@fch.vutbr.cz<br />
The diffusive gradients in thin film technique (DGT) represent a relatively new<br />
approach to in situ determination <strong>of</strong> labile metal-species in aquatic systems. The<br />
DGT device accumulates labile species from the solution while deployed in situ and<br />
therefore contamination problems associated with conventional collection and filtration<br />
procedures are eliminated. The technique employs a hydrogel layer to control<br />
the diffusive transport <strong>of</strong> metals to a cation-exchange resin, usually Chelex 100,<br />
which is selective in free or weakly complexed metal ion species.<br />
This study deals with a new resin gel based on Spheron-Oxin® (5-sulphophenyl-azo-8-hydroxychinoline)<br />
ion exchanger for DGT technique. This new binding<br />
phase with a higher selectivity for trace metal species than Chelex 100 could potentially<br />
provide more information on metals speciation in aquatic systems. The performance<br />
<strong>of</strong> this new binding phase was tested for the determination <strong>of</strong> Cd, Cu, Ni,<br />
Pb and U under laboratory conditions. Resin gel based on Spheron-Oxin® appears<br />
to be a new useful resin gel for speciation analysis <strong>of</strong> uranium in natural waters.<br />
Acknowledgement: This work was performed and supported within the Institutional<br />
research plan AV0Z40310501.<br />
Keywords: DGT technique, speciation analysis<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P20 Extending <strong>of</strong> the Scope <strong>of</strong> GC/MS Method for<br />
Multiple pesticide Residues: Validation Study<br />
1. 0<br />
Markéta Hakenová, Jana Urbanová,<br />
Ondřej Lacina, Vladimír Kocourek, Jana Hajšlová<br />
Institute <strong>of</strong> chemical technology Prague, Department <strong>of</strong> Food Chemistry and Analysis,<br />
Technická 5, 166 28, Prague 6 Dejvice, Czech Republic<br />
hakenovm@vscht.cz<br />
Hundreds <strong>of</strong> pesticides have been registred for protection <strong>of</strong> food crops during<br />
their growth and storage. Multiresidue methods are used to control maximum<br />
limits established for particular pesticide/comodity combination. In our laboratory<br />
method <strong>of</strong> gas chromatography in connection with mass spectrometry detection is<br />
employed for determination <strong>of</strong> over 100 residues occurring in “pesticide fraction“<br />
obtained by gel permeation chromatographic (GPC) clean-up <strong>of</strong> crude ethylacetate<br />
extract.<br />
The aim <strong>of</strong> the current study was to extend the scope <strong>of</strong> this method by adding<br />
20 pesticides (2-phenylphenol, ametryn, cadusafos, cyanazine, cyromazine, desmetryn,<br />
dicrotophos, fluoxastrobin, fon<strong>of</strong>os, metoxuron, metazachlor, monuron, pencycuron,<br />
prometon, pyrazophos, pyrethrins, simetryn, tau-Fluvalinate, thiometon<br />
a vamidathion) on the list <strong>of</strong> the target analytes. The performance characteristics<br />
obtained by validation <strong>of</strong> optimised method will by critically assessed with regard<br />
to EU requirements on analytical methods.<br />
This project was funded by National Agency for Agriculture Research (NAZV)<br />
QH81292.<br />
Keywords: pesticides, gas chromatography
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P21 Challenges in the Analysis <strong>of</strong><br />
Hexabromocyclododecane (HBCD) in the<br />
Environmental Samples<br />
Petra Hrádková, Jan Poustka, Jana Pulkrabová,<br />
Michaela Nápravníková, Jana Hajšlová<br />
Department <strong>of</strong> Food Chemistry and Analysis, ICT Prague<br />
Technická 3, CZ-16628 Prague 6, Czech Republic<br />
e-mail address: petra.hradkova@vscht.cz<br />
HBCD has been widely used as an additive flame retardant in various materials.<br />
There are theoretically 16 HBCD stereoisomers, however, the commercial<br />
technical mixture consist mainly <strong>of</strong> three diastereomeric pairs <strong>of</strong> enantiomers (α-,<br />
β-, and γ-HBCD), the latter one is the most abundant. Some difficulties may be observed<br />
in the determination and quantification <strong>of</strong> HBCD in the samples, hence accurate<br />
detection techniques are required. Individual HBCD diasteromers can be determined<br />
using LC/MS-MS (ESI), whereas total-HBCD (sum <strong>of</strong> α-, β-, and γ-HBCD)<br />
may be also measured by GC/MS (NCI). GC/MS does not allow the quantification<br />
<strong>of</strong> the individual isomers, because the diastereoisomers interconvert at temperature<br />
above 160 °C and the insufficient chromatographic and spectral separation. On<br />
the other hand, the response in LC/MS-MS system may be influenced by ion suppression<br />
especially in the electrospray ionisation MS. In this study, the both types<br />
<strong>of</strong> analytical systems were tested to assess the quality <strong>of</strong> HBCD determination in<br />
the environmental samples. Our results are in accordance with those published in<br />
similar studies concerned with biotransformation processes <strong>of</strong> the isomers pr<strong>of</strong>ile<br />
resulting in dominance <strong>of</strong> α-HBCD.<br />
This is study was undertaken within the projects MSM 6046137305 and NPV II<br />
(2B06151).<br />
Keywords: HBCD; GC/MS; LC/MS<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P22 The Content <strong>of</strong> Polybrominated Diphenyl Ethers<br />
in Freshwater Fishes from Brno Water Reservoir<br />
1. 2<br />
M. Hroch , M. Vávrová , V. Večerek<br />
Faculty <strong>of</strong> Chemistry, University <strong>of</strong> Technology Brno<br />
Purkyňova 118, Brno 612 00, Czech Republic<br />
hroch@fch.vutbr.cz<br />
Most attention has been focused on the group <strong>of</strong> polybrominated diphenyl<br />
ethers (PBDEs), which are widely used as flame retardants in polymers for textiles,<br />
electronics and home furnishings and they more likely leach out and transfer into<br />
the environment and biota. As a result, PBDEs have been detected in biotic and<br />
abiotic matrices including sediments, air, water, fish, marine mammals, human<br />
plasma, and human milk. This paper presents results <strong>of</strong> measuring concentration <strong>of</strong><br />
ten PBDE congeners (BDE-3, 15, 28, 47, 99, 100, 118, 153, 154 and 183) in fishes skin<br />
and muscles (amur, bream, carp, crucian) by using gas chromatography with electron<br />
captured detector (GC-ECD). These samples were collected from Brno water<br />
reservoir, which is located on north-west near Brno city.<br />
Five head <strong>of</strong> each kind were detected and the total PBDE congener concentrations<br />
(Σ PBDEs) in the fishes were amur < bream < crucian < carp. Residues <strong>of</strong> main<br />
congeners were not found in all samples. The highest concentrations were identified<br />
in carp skin BDE-47 (26 do 92 µg.kg -1 ) and crucian musles BDE-153 (31–106 µg.kg -1 ).<br />
Congeners BDE-15, 28 and 118 were not identified in all <strong>of</strong> analyzed samples.<br />
Keywords: flame retardant, GC-ECD
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P23 Examination <strong>of</strong> Aband)oned Sb Deposits<br />
by Mineralogical and Geochemical Methods<br />
in Poproč (Slovakia)<br />
Michal Jankulár, Tomáš Klimko, Michal Šutriepka, Marek Vaculík<br />
Faculty <strong>of</strong> Natural Sciences Comenius University<br />
Mlynska dolina, 84215 Bratislava, Slovak Republic<br />
jankular@fns.uniba.sk<br />
Surrounding <strong>of</strong> abandoned Sb-deposits in SE <strong>of</strong> Spišsko-gemerské Rudohorie<br />
Mts. (Slovakia) poses environmental large-scale contamination by toxic elements<br />
(e.g. Sb, Pb, As, Cu, Zn) as a result <strong>of</strong> long-term mining activity, which finished in<br />
second half <strong>of</strong> 20 th century. The main scientific interest is focused on migration <strong>of</strong><br />
toxic elements in environment, their bindings on Fe-oxyhydroxides or other natural<br />
sorbents, possibility <strong>of</strong> input to food item and potentially influence on population<br />
health quality.<br />
Antimonite is main ore mineral <strong>of</strong> mineralization occurring as quartz-carbonate<br />
veinlets, other ore minerals are pyrite, arsenopyrite and other Pb-Sb-Zn-Cu sulphides.<br />
In investigated area field research and sampling <strong>of</strong> geological materials and<br />
natural media (groundwater, surface waters, stream sediments, soils, ochre) and biological<br />
samples (selected plant species) were realized by standard methods. Sample<br />
localization was focused on surrounding <strong>of</strong> potential local contamination sources<br />
(outflow from mines, tailings ponds and theirs surrounding, mining wastes). Material<br />
<strong>of</strong> ochre is potential contamination source <strong>of</strong> toxic elements for aquatic environment<br />
in catchments <strong>of</strong> Olšava and Bodva rivers. Further experiments will bring<br />
important data for bioavailability assessment.<br />
Keywords: Sb-deposits, toxic elements<br />
Keywords: soil type, fractions <strong>of</strong> sulphure, sulphur dynamics<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P24 Determination <strong>of</strong> Volatile Compounds and<br />
Saccharides at Alder Wood Hydrolysis<br />
1.<br />
František Kačík, Marta Laurová, Danica Kačíková<br />
Technical University in Zvolen<br />
T. G. Masaryka 24, 960 53 Zvolen, Slovakia<br />
kacik@vsld.tuzvo.sk<br />
Hydrolysis <strong>of</strong> fast-growing wood species is an important way to production <strong>of</strong><br />
saccharides from renewable resources. Resulting sugars can be converted to ethanol<br />
by fermentation.<br />
In this study, formation <strong>of</strong> volatile compounds (methanol, 2-furaldehyde, acetic<br />
and propionic acids) as well as saccharides during hydrolysis <strong>of</strong> alder wood at<br />
160-200 °C has been studied by gas chromatography. At the mild conditions <strong>of</strong> hydrolysis<br />
the acetic acid and 2-furaldehyde concentration increases due to the saccharides<br />
deacetylation and dehydration, respectively. The amount <strong>of</strong> 2-furaldehyde<br />
is decreased at 200 °C due to its participation in the condensation reactions. The<br />
maximum <strong>of</strong> both monosaccharides and total saccharides contents were found at<br />
180 °C and 60 minutes <strong>of</strong> treatment.<br />
Keywords: hydrolysis, saccharides, alder wood
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P25 Determination <strong>of</strong> Methylmercury in Sediments<br />
by Headspace Gas Chromatography and Atomic<br />
Fluorescence Detection after Aqueous Phase<br />
Ethylation with Sodium Tetraethylborate<br />
Milada Kadlecová, Baghdad Ouddane, Hana Dočekalová,<br />
Jean-Claude Fischer<br />
Department <strong>of</strong> Environmental Chemistry and Technology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
xckadlecova@fch.vutbr.cz<br />
Aqueous phase ethylation, headspace injection (HS), separation by gas chromatography<br />
(GC) with cold vapour atomic fluorescence detection (CV-AFS) is widely<br />
used technique for analysis <strong>of</strong> mercury, because <strong>of</strong> its accuracy and high sensitivity.<br />
The purpose <strong>of</strong> the present work was to verify and optimise the parameters for determination<br />
<strong>of</strong> methylmercury (MeHg) in sediments.<br />
The analytical system for determination methylmercury consists <strong>of</strong> a headspace<br />
sampler (Perkin Elmer HS TurboMatrix-40 Trap) coupled to a GC (Perkin Elmer,<br />
Clarus 500) through a heated fused silica transfer line. The transfer line is directly<br />
connected to the packed GC capillary column consists <strong>of</strong> a Teflon tube filled with<br />
10% OV3 on Chromosorb. The outlet <strong>of</strong> GC is coupled to a CV-AFS (Tekran, Model<br />
2600 Mercury Analysis System) via a pyrolysis unit. The pyrolysis oven (Varian,<br />
ETC-60 Electrothermal temperature Controler) was provided with a temperature<br />
control set.<br />
The method for methylmercury determination was based on the work <strong>of</strong> Leermakers<br />
et al. (Anal Bioanal Chem, 2003) For MeHg extracted samples were ethylated<br />
and directly introduced to GC column by HS or injected after trapped (pre-concentrated)<br />
on Tenax columns and separated in the GC. Both technique were tested<br />
and compared. The better recovery <strong>of</strong> methylmercury determination and also better<br />
detection limit is by using HS with Trap instead <strong>of</strong> HS only.<br />
The optimization <strong>of</strong> extraction procedure (the time agitation, time for contraextraction),<br />
ethylation parameters (volume <strong>of</strong> ethylating agent, pH, reaction time),<br />
headspace parameters (volume sample, thermostating time, HS temperature, pressurization<br />
time, injection time) and gas chromatography parameters (column temperature,<br />
carrier gas flow rate) are presented. The initial systems values...<br />
The extend <strong>of</strong> this <strong>abstract</strong> exceeded the allowed size and therefore had to be clipped.<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P26 Modeling <strong>of</strong> Dispersion <strong>of</strong> Windborne Material<br />
in Atmosphere<br />
1.<br />
Michal Kapoun, Radim Dvořák<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno<br />
xckapoun@ch.vutbr.cz<br />
This paper deals with mathematical modeling <strong>of</strong> dispersion <strong>of</strong> windborne<br />
material that serves as the basic assumption to create s<strong>of</strong>tware to predict dispersion<br />
in environment during chemical accidents. As an example a point source <strong>of</strong> pollution<br />
in atmosphere with defined meteorological conditions was chosen.<br />
Keywords: modeling, dispersion, atmosphere
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P27 Reprocessing <strong>of</strong> Dangerous put out Chemicals<br />
and Wastes<br />
Juraj Kizlink<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118., CZ-612 00 Brno<br />
kizlink@fch.vutbr.cz<br />
The possibilities <strong>of</strong> reprocessing <strong>of</strong> some dangerous put out chemicals and wastes<br />
are described. Benzidine by the means <strong>of</strong> diazotization and boiling in methanol<br />
into 4,´4-dimethoxydiphenyl (fragrance). Hydrazine by means <strong>of</strong> boiling with<br />
benzaldehyde into substituted hydrazone, known under trade name Benzalazine<br />
(cheap UV-absorber). Alkaline cyanides by means <strong>of</strong> reaction with benzylchloride<br />
into benzylcyanide and after hydrolysis in ethanol, followed by azeotropic distillation<br />
is possible to obtain aromatic phenylacetic acid ethyl ester. After reduction by<br />
means <strong>of</strong> hydrides it is possible to obtain 2-phenylethanol (fragrance). The chemical<br />
substitute <strong>of</strong> natural rose oil.<br />
Key words: dangerous chemicals, dangerous wastes, waste reprocessing,<br />
chemical fragrances,<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P28 Application <strong>of</strong> Chitosan by Water Treatment<br />
1.<br />
Zuzana Klímová<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 61200 Brno, Czech Republic<br />
klimova-z@fch.vutr.cz<br />
Chitosan is a derivative <strong>of</strong> chitin, a polysaccharide that is the major component<br />
<strong>of</strong> the shells <strong>of</strong> crustaceans and insects. Chitin consists <strong>of</strong> long chains <strong>of</strong> acetylated<br />
D-glucosamine, that is, glucosamine with acetyl groups on the amino groups (Nacetylglucosamine).<br />
Chitosan is N-deacetylated chitin, although the deacetylation<br />
in most chitosan preparations is not complete. The protonization <strong>of</strong> amino groups in<br />
solution makes chitosan positively charged, and there by very attractive for flocculation<br />
and different kinds <strong>of</strong> binding applications. Since most natural colloidal particles,<br />
including bacteria and macromolecules, are negatively charged, attractive<br />
electrostatic interactions may lead to flocculation.<br />
This study deals with treatment <strong>of</strong> surface water with content <strong>of</strong> humic matters<br />
with the help <strong>of</strong> coagulation. It was worked with coagulants, ferrous and clayey sulphate,<br />
that are in practice commonly used and with natural biopolymer on chitosan<br />
base, that is not used CR. The aim <strong>of</strong> this work was to found optimal use <strong>of</strong> chitosan<br />
and to compare its coagulative effectivity with effectivity <strong>of</strong> coagulation <strong>of</strong> standard<br />
coagulants ferrous and clayey sulphate.<br />
Keywords: chitosan, coagulation, humic substances, water treatment
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P29 Substituted Carboxylic Acids as a Guest for<br />
Cucurbiturils<br />
Viktor Kolman, Vladimír Šindelář<br />
Masaryk University, Fakulty <strong>of</strong> science<br />
Kotlářská 2 , 625 00 Brno<br />
sindelar@chemi.muni.cz<br />
Recent studies approved, that suitably substituted carboxylic acids can create<br />
the supramolecular complexes with cucurbit[n]urils (CB[n]), which behave as<br />
molecular switches. At low pH these complexes are stable but the decomplexation<br />
takes place in basic environment.<br />
Our work is based on the synthesis <strong>of</strong> dipyridinium salts bearing carboxylic<br />
group in central aliphatic/aromatic unit. We studied these compounds as a guest<br />
for the supramolecular interaction with various CB[n] macrocycles in order to prepare<br />
pseudorotaxane switches. In these systems carboxylic group can be hidden<br />
in the CB[n] cavity and exposed to the water environment after the carboxylate is<br />
formed.<br />
Determination <strong>of</strong> stability constants <strong>of</strong> the synthesized guests with macrocyclic<br />
host CB[n] is presented using 1 H NMR and UV-VIS spectroscopy. Finally, we<br />
describe switching properties <strong>of</strong> the pseudorotaxane system, which is controlled by<br />
pH <strong>of</strong> the solution.<br />
Keywords: cucurbituril, supramolecular switch<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P30 The Effect <strong>of</strong> Waste Basalt Wools on the<br />
Chemical, Agrochemical, Pedological and<br />
Hygienic-Toxicological Soil Parameters<br />
1. 0<br />
Peter Kováčik, Alena Vollmannová, Jaroslav Noskovič<br />
Department <strong>of</strong> Agrochemistry, Slovak University <strong>of</strong> Agriculture in Nitra<br />
Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic<br />
Peter.Kovacik@uniag.sk<br />
The effect <strong>of</strong> two waste rock wools (Nobasyp and Agrodrap) on the soil parameters<br />
has been studied in the pot trial realized in a vegetation cage located at the<br />
Slovak Agricultural University in Nitra ( 48° 18´ N, 18° 05´ E) on Haplic Luvisol (25<br />
kg soil per pot).<br />
Achieved results have shown that application <strong>of</strong> Agrodrap or Nobasyp<br />
(20 t.ha –1 ) has statistically significantly increased the cation exchange capacity, the<br />
sum <strong>of</strong> exchange basic cations (chiefly Mg, K, Ca) and the base <strong>of</strong> saturation <strong>of</strong> the<br />
soil. The bulk density <strong>of</strong> the soil has been decreased significantly as well, whereas<br />
Nobasyp has determined the parameters more importantly than Agrodrap.<br />
Both materials have had a positive effect on the total carbon content and the organic<br />
matter quality, thereby have increased the humic acid share in the soil, whereas<br />
Agrodrap has had more significant effect on these parameters than Nobasyp.<br />
Both waste rock wools have had an alcalic effect on the soil and have deadened<br />
acidic effect <strong>of</strong> the fertilizers and the negative effect on the increase <strong>of</strong> salt content in<br />
the soil as well. They have had the same effect on the content <strong>of</strong> 9 determined heavy<br />
metals in the soil (Cd,Pb,Cr,Zn,Cu,Co,Ni,Mn,Fe) as NPK fertilizers application.<br />
Due to the neutral effect <strong>of</strong> wools on the heavy metals content in the soil and the<br />
positive effect on the remaining soil parameters can be Nobasyp and Agrodrap regarded<br />
as soil amendments.<br />
Keywords: waste basalt wools, soil amendments
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P31 Influence <strong>of</strong> Water Erosion Processes on the<br />
Bottom Sediment Quality<br />
Natália Kovaliková, Magdaléna Bálintová<br />
Civil Engineering Faculty, Technical University <strong>of</strong> Košice,<br />
Institute <strong>of</strong> Building and Environmental Engineering,<br />
Vysokoškolská 4, 042 00 Košice<br />
natalia.kovalikova@tuke.sk<br />
Erosion processes in watersheds belong to serious ecological and economical<br />
problems. Sediments, originated by water erosion reduce stream capacity and cause<br />
silting <strong>of</strong> water basins. Additionally, large amounts <strong>of</strong> chemicals (such as heavy metals,<br />
nutrients, and other pollutants) adsorbed to soil particles can be transported<br />
via soil erosion to water bodies that result in water pollution problems. Especially<br />
nutrients are the important pollution source, which is <strong>of</strong>ten attributed to non-point<br />
source pollution from agricultural production areas.<br />
This contribution deals with the nutrient transport from eroding upland fields<br />
by the small water basin Kľušov.<br />
Our research has been focused on monitoring the nutrient concentration (nitrogen,<br />
phosphorus) in soil particles detached from hillslopes during the soil erosion<br />
and the granularity impact <strong>of</strong> soil particles on the nutrient concentration. The<br />
results from chemical analyses confirmed the literary information, that the concentrations<br />
<strong>of</strong> P, N in chosen sediment samples were diverse due to irregular sediment<br />
deposit in the reservoir. The next part <strong>of</strong> our study deals with determination <strong>of</strong> the<br />
nutrient concentration in sediment and soils in dependence on application quantity<br />
and type <strong>of</strong> used fertilizers and the crop uptake rates.<br />
Keywords: erosion, nutrients, sediment quality<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P32 Modelling And Diagnosing <strong>of</strong> Mechanical<br />
Engineering Life Cycle Production Process<br />
1. 2<br />
Ružena Králiková, Alena Paulíková<br />
Department <strong>of</strong> Environmental Studies, SjF - TU in Košice,<br />
Park Komenského 5, 041 87 Košice, Slovakia<br />
ruzena.kralikova@tuke.sk,<br />
Competing business challenges to interest in production process as determined<br />
factor for quality products, environment protection, production machinery condition,<br />
required parameters for machining and elaborateness for given accuracy. One<br />
<strong>of</strong> solution is the implementation modern simulating devices and applications <strong>of</strong><br />
analogs in production practice.<br />
Keywords: LCA, simulation
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P33 Simulation Of Chemical Factors in Working<br />
Environment<br />
Ružena Králiková, Alena Pauliková<br />
Department <strong>of</strong> Environmental Studies, SjF - TU in Košice,<br />
Park Komenského 5, 041 87 Košice, Slovakia<br />
ruzena.kralikova@tuke.sk,<br />
The contribution deals <strong>of</strong> the modelling and the influences <strong>of</strong> selected chemical<br />
factors in working environment. It is applied by means <strong>of</strong> the modern simulation<br />
<strong>of</strong> s<strong>of</strong>tware devices. The methodology with the look-up functions <strong>of</strong> simulation<br />
program Vensim was designed for complex assessment <strong>of</strong> working environment in<br />
specific conditions <strong>of</strong> mechanical engineering enterprises.<br />
Keywords: chemical factors, working environment<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P34 Multi-Residue Method for the Analysis <strong>of</strong><br />
Pesticides and Mycotoxins in Cereals<br />
by LC-MS/MS<br />
1.<br />
Ondřej Lacina, Jana Urbanová, Alexandra Krplová, Lukáš Václavík,<br />
Jana Hajšlová and Jan Poustka<br />
Institute <strong>of</strong> Chemical Technology Prague<br />
Technická 5, 166 28 Prague 6<br />
ondrej.lacina@vscht.cz<br />
In recent decade, liquid chromatography–tandem mass spectrometry (LC-MS/<br />
MS) operated in selected-reaction-monitoring mode, has become the main tool for<br />
the analysis <strong>of</strong> food and environmental contaminants presenting wide range <strong>of</strong><br />
physico-chemical properties. This approach allowed the introduction <strong>of</strong> multiresidue<br />
methods with up hundreds target analytes determined in a single run. However,<br />
most <strong>of</strong> these methods are focused only on one group <strong>of</strong> food contaminants<br />
such as pesticides, veterinary drugs, mycotoxins, plant toxins, etc.<br />
Considering the fact, that sample preparation/detection principles are basically<br />
similar for most <strong>of</strong> these methods, we attempted to determine pesticide residues<br />
and mycotoxins - contaminants representing different sources <strong>of</strong> origin in single<br />
run. The comprehensive LC-MS/MS multi-residue method has been developed and<br />
validated for 12 Fusarium toxines and approximately 200 pesticides, that may occurred<br />
in cereals.<br />
Keywords: liquid chromatography, tandem mass spectrometry, pesticides,<br />
mycotoxins
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P35 Aerobic MTBE Biodegradation by Paecilomyces<br />
Variotii<br />
Blazo Lalevic,Vera Raicevic, Ljubinko Jovanovic, Dragan Kikovic,<br />
Miomir Niksic<br />
Faculty <strong>of</strong> Agriculture <strong>of</strong> Belgrade University<br />
Nemanjina 6, 11080 Belgrade - Zemun<br />
lalevicb@yahoo.com<br />
Methyl tert-butyl ether (MTBE) has been used since the 1970s as a gasoline additive<br />
in order to octane replacement for tetraethyl lead, increasing <strong>of</strong> combustion<br />
efficiency and reduction <strong>of</strong> carbon monoxide and VOC emission. However, the widespread<br />
use <strong>of</strong> MTBE in different types <strong>of</strong> gasoline, has resulted in its introduction<br />
into groundwaters. The MTBE has led to increased need to identify and aplicate the<br />
cost-effective bioremediation technologies. The aim <strong>of</strong> this paper was investigation<br />
<strong>of</strong> MTBE biodegradation by fungus Paecilomyces variotii isolate 129b, isolated from<br />
the wastewater <strong>of</strong> API separator in Oil Refinery <strong>of</strong> Pancevo district. The experiment<br />
was conducted by inoculation <strong>of</strong> liquid MSM medium with spores <strong>of</strong> Paecilomyces<br />
variotii. The MTBE was added in following concentrations: 11; 34; and 83 ppm. The<br />
MTBE concentration were detected using GC/FID method. The leveling <strong>of</strong> degradation<br />
rate was conducted in the beginning <strong>of</strong> experiment and after 2; 5; 12; 15; and 19<br />
days from the beginning <strong>of</strong> the experiment.<br />
The results indicate that Paecilomyces variotii can degrade MTBE. The degradation<br />
rate was from 41–85%, amount <strong>of</strong> fungi biomass was from 0.017–0.021 mg/ml<br />
depending on starting MTBE concentration and the time <strong>of</strong> sampling. This studies<br />
confirms the possibilities <strong>of</strong> fungus Paecilomyces variotii in degradation <strong>of</strong> recalcitrant<br />
pollutants such as MTBE.<br />
Keywords: MTBE, biodegradation, Paecilomyces variotii<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P36 Reclamation <strong>of</strong> Calcium Sulphate Sludges by<br />
Sulphate-Reducing Bacteria<br />
1.<br />
Alena Luptáková, Mária Kušnierová<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Kosice, Slovak Republic<br />
luptakal@saske.sk<br />
Combustion <strong>of</strong> fossil fuels containing sulphur releases sulphur oxides to the<br />
atmosphere. If combustion gases are desulphurized by lime or limestone scrubbing,<br />
calcium sulphates sludges are generated and these must be disposed <strong>of</strong>. Under appropriate<br />
conditions these sulphate can be converted to sulphide by bacterial sulphate<br />
reduction as hydrogen sulphide gas, which can be oxidized chemically or<br />
biologically to elemental sulphur. Because bacterial sulphate reduction by sulphatereducing<br />
bacteria has widespread environmental effects and this process has potential<br />
as a treatment process for calcium sulphate sludge and acid mine drainage,<br />
the aim <strong>of</strong> this work was to study the gypsum biodegradation from the final stored<br />
product – “stabilizate“, from deposit thermal power plant Vojany in Slovakia. The<br />
process may consist <strong>of</strong> three stages: anaerobic sulphate reduction to hydrogen sulphide<br />
by sulphate-reducing bacteria, metals precipitation from acid mine drainage<br />
by continuous stripping <strong>of</strong> hydrogen sulphide and the excess hydrogen sulphide<br />
oxidation to elemental sulphur. Metal sulphides, calcium carbonate and elemental<br />
sulphur are final products and these may by recycled in chemical or hydrometallurgical<br />
processes.<br />
Keywords: calcium sulphates sludges, sulphate-reducing bacteria
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P37 Bioleaching <strong>of</strong> Antimony Minerals<br />
by Bacteria Acidithiobacillus and Desulfovibrio<br />
Alena Luptáková, Eva Mačingová, Jana Jenčárová<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Kosice, Slovak Republic<br />
luptakal@saske.sk<br />
The objectives <strong>of</strong> this work were to evaluate the use <strong>of</strong> sulphate-reducing bacteria<br />
Desulfovibrio sp. and sulphur-oxidising bacteria Acidithiobacillus sp. for the<br />
leaching <strong>of</strong> gold-bearing antimony sulfide minerals. The basic metabolic process<br />
<strong>of</strong> Desulfovibrio sp. is the anaerobic reduction <strong>of</strong> sulphates to hydrogen sulphide,<br />
which can use for leaching antimony-bearing materials. The basic metabolic process<br />
<strong>of</strong> Acidithiobacillus sp. is the aerobic oxidation <strong>of</strong> sulphur in result <strong>of</strong> which may be<br />
used for the oxidation <strong>of</strong> sulphur from antimony sulphide minerals.<br />
Series <strong>of</strong> aerobic and anaerobic tests were studied in a fed batch reactor at 30°C.<br />
Samples <strong>of</strong> gold-bearing antimony sulphide minerals were kept in static and dynamic<br />
conditions. After 40 days the solid and liquid phase were analysed. Solubilized<br />
metals were determined using an atomic absorption spectrophotometer. Solid<br />
residues recovered by filtration were analysed by means <strong>of</strong> X-ray diffraction.<br />
Keywords: bioleaching, sulphate-reducing bacteria<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P38 Biological-Chemical regeneration <strong>of</strong><br />
Desulphurization Sorbents Based on Zinc Ferrite<br />
1.<br />
Alena Luptáková, Mária Kušnierová, Vladimír Šepelák<br />
Institute <strong>of</strong> Geotechnics SAS,<br />
Watsonova 45,040 01 Košice, Slovak Republic<br />
kusnier@saske.sk<br />
Nowadays is the zinc ferrite used as an adsorption material for high-temperature<br />
desulphurization <strong>of</strong> waste gases after coal combustion.<br />
The first results <strong>of</strong> the experiments using the biological-chemical way <strong>of</strong> leaching,<br />
on principle a new process <strong>of</strong> regeneration <strong>of</strong> desulphurization sorbents<br />
based on zinc ferrite is shown in this paper.<br />
Keywords: zinc ferrite, bioregeneration, leaching
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P39 Single Analyte Zone Splitting in CZE: Origin,<br />
Appearance and Remedy<br />
Z. Malá, P. Gebauer, P. Boček<br />
Institute <strong>of</strong> Analytical Chemistry, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic, v. v. i.<br />
Veveří 97, 602 00 Brno, Czech Republic<br />
mala@iach.cz<br />
It is not a rare phenomenon in capillary zone electrophoresis (CZE) that the<br />
electrophoregram shows more peaks than is the number <strong>of</strong> components present in<br />
the sample. In analytical practice, these redundant peaks are <strong>of</strong>ten left unexplained<br />
or are declared as unidentified impurities or system peaks. So far, there has been<br />
paid little attention to a case when one single analyte can form two or more regular,<br />
mutually separated, distinct zones. This contribution brings the results <strong>of</strong> theoretical<br />
and experimental investigation <strong>of</strong> the electromigration behavior <strong>of</strong> salt-containing<br />
samples in various currently used background electrolytes (BGEs), and, it is<br />
shown that this type <strong>of</strong> samples can exhibit splitting <strong>of</strong> the single analyte zone into<br />
mutually independent parts that can be detected as several well developed distinct<br />
peaks. Theory based on velocity diagrams and computer simulations reveals that<br />
the origin <strong>of</strong> these effects lies in the transient phase <strong>of</strong> sample separation. Here, the<br />
(salt containing) sample induces parallel existence <strong>of</strong> several transient sharp boundaries<br />
simultaneously capable to stack an analyte. The electromigration <strong>of</strong> these<br />
boundaries is convergent, however, if these boundaries do not merge before the<br />
analyte destacks from them, permanent double or even multiple peaks <strong>of</strong> the given<br />
analyte are the result. Presented examples <strong>of</strong> anionic and cationic systems show<br />
good agreement between theory/simulation and experiment and demonstrate that<br />
the appearance <strong>of</strong> multiple peaks can be very variable, ranging from double or triple<br />
peaks to a major peak with a minor peak quite apart. Knowledge <strong>of</strong> the mechanism<br />
<strong>of</strong> the peak splitting phenomenon allows both to identify its presence in a given<br />
BGE/sample system and to find effective remedy.<br />
Acknowledgements: This work was supported by the Grant Agency <strong>of</strong> the<br />
Czech republic, grant No 203/08/1536, by the Grant Agency <strong>of</strong> the Academy <strong>of</strong><br />
Science <strong>of</strong> the Czech Republic, grants No IAA 400310609 and IAA 400310703, and<br />
by the Institutional Research Plan AV0Z40310501 <strong>of</strong> the Academy <strong>of</strong> Sciences <strong>of</strong> the<br />
Czech Republic.<br />
Keywords: capillary zone electrophoresis, peak spliting<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P40 Chlorophyll Bleaching by UV-Irradiation<br />
in Solvents and Isolated Photosynthetic<br />
Organelles<br />
1. 0<br />
Dejan Marković, Jelena Zvezdanović<br />
Faculty <strong>of</strong> Technology, University <strong>of</strong> Niš<br />
16000 Leskovac, Serbia<br />
dejan_markovic @yahoo.com<br />
Solar radiation is not only the biosphere vital source <strong>of</strong> energy, but also acts as<br />
an adverse environmental factor for various forms <strong>of</strong> life. The light-induced damage<br />
increases with decreasing wavelengths. Thus, from natural sunlight that reaches the<br />
Earth the UV-B portion (280-315 nm), in increasing proportions with recent ozone<br />
layer reductions, has the highest damaging potential.<br />
Chlorophyll (Chl), a major photosynthesis pigment, is a chlorin, porphyrin<br />
derivative, a cyclic tetrapyrrol with isocyclic cyclopentanone ring, fused at the edge<br />
<strong>of</strong> the right-bottom pyrrole ring; with central Mg-atom playing a coordinating role.<br />
Though it primarily absorbs in VIS region, it‘s composure is significantly altered<br />
when exposed to UV-light in vivo and in vitro.<br />
Chlorophyll bleaching by UV-irradiation (UV-A, UV-B and UV-C) was studied<br />
by absorbance and fluorescence spectroscopy in acetone and n-hexane extracts <strong>of</strong><br />
photosynthetic pigments, and in thylakoids suspensions. Chlorophyll undergoes<br />
bleaching accompanied by fluorescent transient formation obeying the first-order<br />
kinetics. The bleaching is governed by UV-photons energy input, as well as by different<br />
Chl molecular organizations in the two solvents (in vitro), and in thylakoids<br />
(in situ). UV-C-induced bleaching <strong>of</strong> chlorophyll in thylakoids is probably caused by<br />
different mechanism, compared to UV-A and UV-B induced bleaching.<br />
Keywords: chlorophyll, UV-irradiation, bleaching, thylakoids
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P41 Environmental Risk Assessment, Transport <strong>of</strong><br />
Dangerous Goods and Possible Accidents<br />
Jana Victoria Martincová and Ivan Mašek<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkynova 118, Brno, CZ-61200, The Czech Republic<br />
platina@email.cz<br />
Road transport <strong>of</strong> dangerous goods is increasing and there are also increasing<br />
numbers <strong>of</strong> registered accidents. The environmental risk assessment is possible to<br />
approach by means <strong>of</strong> methods applicable in releases and dispersion modelling <strong>of</strong><br />
dangerous gases or vapours and other dangerous goods in cases <strong>of</strong> major accidents<br />
from road transportation in urban zones and landscapes. The most transported<br />
dangerous goods on the roads are flammable substances. The description for the<br />
hazardous transport corresponds to the European ADR Directive. There will be predictions<br />
in the article from the s<strong>of</strong>tware ALOHA and TeRex used and the numerical<br />
methods such as IAEA TEC DOC 727 and Dow´s FαE Index.<br />
Keywords: environmental risk asssessment, transport <strong>of</strong> dangerous goods,<br />
accidents<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P42 Causes <strong>of</strong> Accidents Regarging Transport <strong>of</strong><br />
Dangerous Goods<br />
1. 2<br />
J. V. Martincová, I. Mašek, J. Martinec<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkynova 118, Brno, CZ-61200, The Czech Republic<br />
platina@email.cz<br />
A Transport <strong>of</strong> dangerous substances can be characterized by a permanent contact<br />
or mutual conjunction with the population and represents in all possible stages<br />
a potential hazard. In addition to human health injury or death, also damage to<br />
property and the affected environment remains a very serious problem. Considering<br />
each <strong>of</strong> the negative aspects relating to hazardous materials transportation the<br />
increase <strong>of</strong> 95 % in numbers <strong>of</strong> road accidents have been recorded in the last 30 years<br />
and must be accounted. This negative feature <strong>of</strong> the excessive traffic on roads is in<br />
evidence due to available statistics <strong>of</strong> the accidents in the whole Europe. Besides<br />
the noticeable number <strong>of</strong> accidents in the cases related to the transport <strong>of</strong> dangerous<br />
substances the economical point <strong>of</strong> view in increasing costs is under general<br />
concern.<br />
The most frequented transportation regarding dangerous goods is on the roads<br />
in the Europe.<br />
Keywords: dangerous goods, road transport, statistics, causes <strong>of</strong> accidents.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P43 Development <strong>of</strong> a new Educational Programme<br />
“Protection <strong>of</strong> Population”<br />
Ivan Mašek, Pavel Častulík, , Otakar Mika<br />
Brno University <strong>of</strong> Technology,Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova 118, 61200 Brno<br />
masek@fch.vutbr.cz<br />
Authors in their contribution inform about newly conceived master degree<br />
educational programme, its scope <strong>of</strong> the study, pr<strong>of</strong>ile <strong>of</strong> graduates, orientation <strong>of</strong><br />
study and theoretical disciplines including practical training and composition <strong>of</strong><br />
study subjects. Further they present the views and suggestions on the pr<strong>of</strong>ile <strong>of</strong> a<br />
new study field and its technological orientation, with respect for education <strong>of</strong> graduates<br />
in complexity <strong>of</strong> arrangements for protection <strong>of</strong> population against hazardous<br />
materials such as chemicals, in particular. In this contribution will be outlined<br />
the possibilities for cooperation <strong>of</strong> the University and/or the Faculty <strong>of</strong> chemistry<br />
with public administration and their associated institutions, research and development<br />
establishments and manufacturing companies in order to provide protection<br />
<strong>of</strong> population through crisis management and technological support.<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P44 Can we Ensure Safer Environmental<br />
for Curtural Heritage?<br />
1.<br />
Ivan Mašek, Zdena Rosická<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Purkynova 118, Brno, 612 00, Czech Republic,<br />
masek@fch.vutbr.cz<br />
In the late 70ies it was estimated that only 10% <strong>of</strong> the cultural heritage in Europe<br />
would survive by 2000. The principal threats were identified as development,<br />
traffic and road construction. The causes <strong>of</strong> decay <strong>of</strong> the cultural heritage are in<br />
different degrees common to most countries in the world: climatic causes (floods,<br />
extreme frosts, wildfire…), geological causes (ground water, mining settlement…),<br />
economic causes (lack <strong>of</strong> maintenance, development…), biological causes (moulds,<br />
fungi, lichens, rats, pigeons and man as well), and man-made causes (pollution, fire,<br />
arson, neglect, vandalism, theft…).<br />
Library and archive materials call for specific environmental conditions necessary<br />
to maintain the collections safely in a stable condition. HVAC systems, relative<br />
humidity, temperature, pollutants in the air, light, monitoring equipment and<br />
methods, mold and mildew, insects, vermin and fumigation - all elements <strong>of</strong> environmental<br />
(EC) conservation are in question. EC is a preventive preservation program<br />
for the entire collection and therefore is a more cost effective in the long run<br />
than individual treatment <strong>of</strong> library materials.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P45 Risks Factors <strong>of</strong> Social Development for<br />
Management<br />
Ivan Mašek, Jaromír Novák<br />
Brno University <strong>of</strong> Technology,Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova 118, 61200 Brno<br />
masek@fch.vutbr.cz<br />
The article deals with some <strong>of</strong> the main risks factors <strong>of</strong> social development<br />
both at present time and in future. The authors characterise phenomena and processes<br />
taking part in society. These phenomena and processes can gain risky characters,<br />
having negative influence on further development. It is necessary to respect<br />
these factors both in theory and practice even at lowers levels <strong>of</strong> management. These<br />
factors include: population increase, world’s wealth, globalisation, integration and<br />
disintegration, weapons, violence, permanent development, and ability to manage.<br />
Key words: Society, development, risks factors, population increase,<br />
world’s wealth, globalisation, integration and disintegration,<br />
weapons, violence, permanent development, ability to manage.<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P46 Actual Problems <strong>of</strong> chemical Disarmanet:<br />
Chemical Weapons Convention after the 2nd<br />
Review Conference<br />
1.<br />
Jiří Matoušek<br />
Masaryk University, Facultty <strong>of</strong> Sci ,<br />
EU Res. Ctre <strong>of</strong> Excellence for Environmental Chemistry and Ecotoxicology, Kamenice 126/3,<br />
CZ-625 00 Brno, Czech Republic<br />
matousek@recetox.muni.cz<br />
The Chemical Weapons Convention (CWC) is characterised and its special<br />
mood <strong>of</strong> defining prohibitions and commitments <strong>of</strong> States Parties (SPs), based on its<br />
leading principle, the s.c. General Purpose Criterion, stressed.<br />
The CWC is the only functioning document on eliminating one kind <strong>of</strong> weapons<br />
<strong>of</strong> mass destruction (WMD) under effective international verification system.<br />
Status <strong>of</strong> its implementation 11 years after entry into force is assessed, mainly as<br />
<strong>of</strong> the course and problems <strong>of</strong> destruction <strong>of</strong> CW stockpiles and destruction/conversion<br />
<strong>of</strong> former CW production facilities. Fundamental problems <strong>of</strong> non-proliferation,<br />
i.e. mainly <strong>of</strong> non-production <strong>of</strong> CW in peaceful chemical industries and<br />
verification there<strong>of</strong>, are elucidated.<br />
Impact <strong>of</strong> advances in science and technology on the CWC and its implementation<br />
is analysed vis-à-vis the assessment <strong>of</strong> achievements <strong>of</strong> the 1 st and 2 nd Review<br />
Conferences (2003, 2008). Special attention is devoted to experience in combating<br />
chemical terrorism, assistance and protection, and national implementation measures.<br />
Experience <strong>of</strong> implementing CWC in the Czech Republic and its contribution<br />
to the worldwide chemical disarmament is discussed.<br />
Keywords: Chemical Weapons Convention, implementation
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P47 Protection <strong>of</strong> Population in The Czech Republic<br />
and its Perspectives<br />
Otakar J. Mika, Lenka Fišerová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Institute <strong>of</strong> Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova Street No. 464/118, CZ-612 00 Brno, Czech Republic<br />
mika@fch.vutbr.cz<br />
Brief survey <strong>of</strong> civil protection and defence history in the former Czechoslovakia.<br />
Civil protection and protection <strong>of</strong> population in the Czech Republic after sociopolitical<br />
changes at the beginning <strong>of</strong> 90-ties. Current state <strong>of</strong> protection <strong>of</strong> population<br />
in the Czech Republic and perspectives <strong>of</strong> its development in the forthcoming<br />
years.<br />
Present requirements on modern system <strong>of</strong> protection <strong>of</strong> population with respect<br />
to all significant risks and hazards. Outline proposal <strong>of</strong> a new legal regulation<br />
(Civilian Protection Act) for both current situation and following 10-15 years.<br />
Keywords: protection <strong>of</strong> citizen, emergency situations, Civilian Protection Act<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P48 Application <strong>of</strong> DGT Method for Assesment <strong>of</strong><br />
Availability <strong>of</strong> Heavy Metals to Plants<br />
1.<br />
Z. Mládková, K. Pešková, B. Dočekal, H. Dočekalová, P. Škarpa<br />
Department <strong>of</strong> Environmental Chemistry and Technology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology, Purkyňova 118, 612 00 Brno, Czech Republic<br />
xcpeskova@fch.vutbr.cz<br />
The content <strong>of</strong> heavy metals in agricultural soils is gradually increasing from<br />
various processes such as utilization <strong>of</strong> fertilizers, atmospheric fall-out etc. These<br />
metals may transfer from contaminated soils into growing plants. Therefore, it is<br />
essential to assess the biological relevance <strong>of</strong> heavy metals in soils. Various leaching<br />
procedures are applied for this purpose. Total mineral analysis procedures can not<br />
provide information on biochemical activity <strong>of</strong> heavy metals. Sequential extraction<br />
procedures are adopted for determination <strong>of</strong> heavy metals distribution in different<br />
forms and phases. Diffusive gradient in thin films (DGT) can be applied for characterization<br />
<strong>of</strong> soils. DGT probe, when deployed in the soil disturbs soil/pore water<br />
equilibrium and simultaneously measures the response <strong>of</strong> the soil, resupply fluxes<br />
<strong>of</strong> labile metal species from the soil solid phase to soil solution.<br />
The results <strong>of</strong> DGT and extraction techniques by common leaching procedures<br />
are presented and compared with the metals uptake in various parts <strong>of</strong> an experimental<br />
plant (Raphanus) cultivated on tested soils.<br />
Acknowledgement: This work was performed and supported within the Institutional<br />
research plan AV0Z40310501.<br />
Keywords: DGT technique, analysis <strong>of</strong> soils
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P49 Spectrophotometric Microdetermination <strong>of</strong><br />
Phosphate Based on the Ion Association Complex<br />
with Rhodamine B in Water<br />
Martin Moos, Lumír Sommer<br />
Brno University <strong>of</strong> Technology,Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova 118, 61200 Brno<br />
xcmoos@fch.vutbr.cz<br />
The spectrophotometric determination <strong>of</strong> phosphate based on the ion associa-<br />
tion komplex with Rhodamin B is H 2 [P(Mo 3 O 10 ) 4 ] ө RhB ⊕ . Linear calibration curves<br />
were observed for 1–7⋅10-6 - –5 3 -1 M H PO (∆λmax = 552 nm, ∆ε = 1.42 × 10 dm mol cm ) in<br />
2 4<br />
1 M sulphuric acid in the presence <strong>of</strong> 0,01% non-ionic surfactant Brij 35 and 0,03 M<br />
α β sodium molybdate. The detection limits are X = 12.4 ppb XD = 36.6 ppb (Graham),<br />
D<br />
m XD = 24.4 ppb (Miller) or 25.6 ppb (IUPAC). No interferences at 1 × 10–4 – M H PO 2 4<br />
were observed for 1000 : 1 Mg2+ , K + , Na + + – 2– – – 3+ , NH , NO3 SO4 , Cl , HCO3 and 100 : 1 Al ,<br />
4 ,<br />
Fe2+ , Ca2+ – . As (III, V), NO and Si (IV) were especially tested as considerable interfe-<br />
2<br />
– rents, from which As (III, V) and NO interfere above the concentration only which<br />
2<br />
cannot be found in natural waters. The Si (IV) was masked with 0.1 g l –1 tartaric<br />
acid. The optimalised method was applied fot the determination <strong>of</strong> phosphate in<br />
drinking and surface water.<br />
Keywords: phosphate, Rhodamin B, water<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P50 Determination <strong>of</strong> Uranium by ICP-AES in the<br />
Absence and Presence <strong>of</strong> Preconcentration on<br />
Macroporous Sorbents<br />
1. 0<br />
Martin Moos, Urbánková Kristýna, Lumír Sommer<br />
Brno University <strong>of</strong> Technology,Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova 118, 61200 Brno<br />
xcmoos@fch.vutbr.cz<br />
The echelle based ICP spectrometer at 27.12 MHz, with power output 1.35 kW,<br />
Meinhard concentric nebuliser and CID detector is used for the determination <strong>of</strong><br />
U. Linear calibration plots for 0.1–50 ppm U(IV) are in solutions containing 1–3 %<br />
HNO for 385.958 and 409.014 nm. The slope <strong>of</strong> the plot decreases with the increasing<br />
3<br />
concentration <strong>of</strong> HNO but increases in the presence <strong>of</strong> 4-(2-pyridylazo)resorcinol<br />
3<br />
(PAR) by 10 %. 3 × 10 –3 M surfactants such as Septonex, Brij 35 and dodecylsulphate<br />
considerably increase the sensitivity <strong>of</strong> the determination <strong>of</strong> U. The detection limits<br />
α β m<br />
are X = 1.26, XD =3.69 (Graham), XD = 1.13 (Miller) or 0.30 ppm (IUPAC). No interfer-<br />
D<br />
– – 2– 2– + ences at 1–3 ppm U were observed for 100 : 1 NO , Cl , SO4 , SiO3 , NH4,<br />
Na, K, Ca,<br />
3<br />
Mg, Al 10 : 1 multicomponent containing Br – , Cl, Br – 2– 3– , SO , PO4 and Cd, Co, Cr, Cu,<br />
4<br />
Mn, Pb, V, Zn in the absence or presence <strong>of</strong> internal standard Y (1ppm) except <strong>of</strong> Fe3+ for which the interfering signal 10 : 1 excess decreases only by 50 % in the presence<br />
<strong>of</strong> Y. The macroporous Amberlite XAD 4 conditioned with the cationic surfactant in<br />
the presence <strong>of</strong> PAR has proved for the preconcentration <strong>of</strong> U at pH 5–9. The subsequent<br />
elution is with mixtures <strong>of</strong> aceton, ethanol or methanol and 1–4 M HNO . The 3.<br />
solvent is removed by evaporation prior to the ICP determination.<br />
Keywords: uranium, amberlite XAD, ICP-AES
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P51 Determination <strong>of</strong> halogenated Pollutants in<br />
Environmental Samples by using GC-ECD after<br />
SPME-GC Separation<br />
F. Moreno, J. M. Manso, T. García-Barrera, J. L. Gómez-Ariza<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen. 21007 Huelva (SPAIN).<br />
tamara.garcia@dqcm.uhu.es<br />
The presence <strong>of</strong> halogenated pollutants in the environmenta has a great concern,<br />
especially chlorinated pesticides and chlorinated or brominated biphenyls.<br />
Their introduction in the food chain that can promote hazard effects on the animals<br />
and men and the legislation tends to provide guidelines levels to avoid consequences<br />
for health. Special interest has been focused on fruit and vegetables to reduce to<br />
reduce the maximum residue levels (MRLs). As a consequence, accurate determinations<br />
reducing the analysis costs are needed.<br />
A number <strong>of</strong> methods have been proposed for determination <strong>of</strong> these POPs<br />
in environmental and food samples, but the task is still the development <strong>of</strong> new<br />
analytical methods allowing the extraction from the complex matrixes, elimination<br />
<strong>of</strong> interfering co-extracted compounds and detection limits under the MRLs. In addition,<br />
the determination <strong>of</strong> PCBs and PBBs is a difficult task due to the similarity<br />
<strong>of</strong> these compounds which normally coeluted in the chromatographic separations.<br />
Thus, a powerful analytical approach for halogenated POPs is based on the use <strong>of</strong><br />
GC-ECD/MS. This coupling is simple and transferable to routine laboratories.<br />
In this work, SPME-GC-ECD/MS has been applied to halogenated compounds<br />
in environmental and food samples avoiding coelution problems. A surface response<br />
design (Rotable Central Composite Design-RCCD) was constructed in order<br />
to obtain the optimum experimental conditions.<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P52 Simultaneous Speciation <strong>of</strong> Selenium and<br />
Mercury in Biological Samples by using a Column<br />
Swithching Systém with Liquid Chromatography<br />
Coupled to ICP-MS<br />
1. 2<br />
F. Moreno, T. García-Barrera, J. L. Gómez-Ariza<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen. 21007 Huelva (SPAIN)<br />
tamara@dqcm.uhu.es<br />
It has been issued that the simultaneous intake <strong>of</strong> selenium and mercury prevents<br />
against some neurotoxic effects <strong>of</strong> mercury. For this reason, analytical methods<br />
for the multispeciation <strong>of</strong> elements are required. However, is difficult to obtain<br />
optimal instrumental parameters for both elements as well as the establishment <strong>of</strong><br />
common extraction conditions. In the present study, a new method for the simultaneous<br />
extraction <strong>of</strong> Se- and Hg-species has been developed. The optimized analytical<br />
strategy for the simultaneous extraction <strong>of</strong> Se- and Hg-species was based on the<br />
use <strong>of</strong> an ultrasonic probe and a microwave oven as well as solid-liquid extraction.<br />
The analyzed species: Se-methionine, Se-cystamine, Se-cystine, Se-(methyl)-Se-cysteine,<br />
Se (IV), Se (VI), Se-urea, methylmercury and inorganic mercury, showed good<br />
recoveries with the proposed method. The separation <strong>of</strong> the species was carried out<br />
with two columns connected to a column switching system coupled to an ICP-MS<br />
that allowed the separation <strong>of</strong> all the analytes in less than 25 minutes.<br />
The method has been validated by using several certified materials, namely:<br />
SELM-1 (selenium enriched yeast), DORM-2 (dogfish), TORT-2 (lobster hepatopancreas),<br />
IAEA-407 (fish homogenate) and IAEA-85 (human hair)
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P53 Volatile Organic Substances Present in Spices<br />
and Spruce Needles<br />
Ludmila Mravcová, Milada Vávrová, Josef Čáslavský, Michaela Stoupalová,<br />
Ilona Hlaváčková, Hana Vítečková<br />
<strong>Vysoké</strong> <strong>učení</strong> technické v Brně, <strong>Fakulta</strong> <strong>chemická</strong><br />
Purkyňova 118, 612 00 Brno<br />
mravcova@fch.vutbr.cz<br />
The study concentrates on the identification <strong>of</strong> selected content substances<br />
present in spices and in spruce needles. The attention was given to volatile organic<br />
substances <strong>of</strong> the group <strong>of</strong> aromatic oils. The isolation and identification <strong>of</strong> the mentioned<br />
substances was carried out by two ways. The first way used the extraction<br />
for the isolation <strong>of</strong> monitored analytes from the matrix and thin layer chromatography<br />
with chemical detection for the identification. This is the method recommended<br />
by the Pharmaceutical Codex as a screening method. The second way was based on<br />
passive sampling using SPME and identification <strong>of</strong> analytes using GC/MS. The study<br />
is closed with evaluation <strong>of</strong> the both methods for detection and identification <strong>of</strong><br />
content substances present in aromatic oils isolated from spices or spruce needles .<br />
Keywords: GC/MS, SPME, aromatic oils<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P54 Changes in Carotenoids Pattern in Mougeotia<br />
sp. Algae Induced By High Light Stress<br />
1.<br />
Edward Muntean, Victor Bercea, Nicoleta Muntean, Nicolae Dragoş<br />
University <strong>of</strong> Agricultural Sciences and Veterinary Medicine Cluj Napoca<br />
3-5 Calea Mănăştur, 400372 – Cluj Napoca, Romania<br />
edimuntean@yahoo.com<br />
The behavior <strong>of</strong> the photoprotective function <strong>of</strong> xanthophyll cycle was studied<br />
using as matrix the green algae Mougeotia sp. Agardt, using excessive light. For investigating<br />
the light-dependent adaptation <strong>of</strong> the violaxanthin cycle pigments, the<br />
carotenoid analysis was achieved using high performance liquid chromatography<br />
(HPLC) with photodiode array detection. Separations were performed on an Agilent<br />
1100 system, using a Nucleosil 120-5 C 18 column (250 x 4.6 mm) and the following<br />
mobile phases: A - acetonitrile : water (9 : 1) and B - ethyl acetate. The flow rate<br />
<strong>of</strong> the mobile phase was 1 mL/ min. and the solvent gradient was as follows: from 0<br />
to 20 min. - 10% to 70% B, then from 20 to 30 min. - 70% to 10% B.<br />
HPLC analysis revealed a carotenoid pattern in which the xanthophylls violaxanthin,<br />
lutein, zeaxanthin, 5,6-epoxy-β-carotene and the carotenes α-carotene,<br />
β-carotene, 9Z-β-carotene and 15Z-β-carotene were identified. This pattern is dominated<br />
by two major carotenoids: lutein and β-carotene. HPLC analysis also revealed<br />
a particular behavior <strong>of</strong> xanthophyll cycle in Mougeotia sp. algae under intense illumination:<br />
the major de-epoxidation product is not zeaxanthin, but antheraxanthin.<br />
Besides, the light stress affects the whole carotenoid biosynthesis and thus the<br />
HPLC carotenoid pattern, starting with tηε ϖιολαξαντηιν χψχλε σ πρεχυρσορ: βcarotene.<br />
Keywords: HPLC, carotenoids
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P55 Simultaneous Ion Chromatographic<br />
Determination <strong>of</strong> Anions and Cations in Surface<br />
Waters From Fizes Valley<br />
Muntean Edward, Mihăiescu Tania,<br />
Muntean Nicoleta, Mihăiescu Radu<br />
University <strong>of</strong> Agricultural Sciences and Veterinary Medicine Cluj Napoca<br />
3-5 Calea Mănăştur, 400372 – Cluj Napoca, Romania<br />
edimuntean@yahoo.com<br />
The system <strong>of</strong> fishing ponds, streams and ground waters from Fizes Valley watershed<br />
(Romania) was studied in order to assess the effects <strong>of</strong> antropic pollution<br />
through leaching <strong>of</strong> fertilizers from soils and waste waters from the villages within<br />
its catchment. An ion chromatography (IC) method with conductivity detection was<br />
+ ,<br />
developed, enabling a simultaneous determination <strong>of</strong> six cations (Li + , Na + , K + , NH4 Mg2+ and Ca2+ ) and seven anions (F- , Cl- , Br- - - 3- , NO , NO3 , PO4 and SO4<br />
2<br />
2- ) in a single<br />
run, saving thus analytical time, sample pre-treatment and reagents.<br />
IC separations were performed on a Shimadzu system equipped with two<br />
Alltech columns in parallel: an Allsep Anion 7u column (100 x 4.6 mm) and an<br />
Universal Aation 7u (150 x 4.6 mm) column - both maintained at 400C. Anion separations<br />
were accomplished using as mobile phase 4-hidroxybenzoic acid 4 mM with<br />
pH-ul adjusted to 7.5 with LiOH 0.1 M, at a flow rate <strong>of</strong> 0.85 mL/ min; cation separations<br />
were carried out using as mobile phase HNO 3 mM with EDTA 0.1 mM at a<br />
3<br />
flow rate <strong>of</strong> 0.5 ml/min. Aliquots <strong>of</strong> 250 µl samples were used for all determinations.<br />
All peaks were baseline separated, the total separation time being 23 min. The obtained<br />
data were validated using certified reference materials (LGC6020, SPS ww2);<br />
all calibrations were linear, with r>0.99. Only eight ions were found in the samples<br />
+ 2+ 2+ - - 3- 2- , Mg , Ca , Cl , NO3 , PO4 and SO4 ), within a concentration range <strong>of</strong><br />
(Na + , K + , NH4 6.64 ppm (for K + ) to 423.27 ppm (for Cl- ).<br />
Keywords: ion chromatography, surface water<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P56 Strategies to Reduce Detection Limits (LODs)<br />
in the Analysis <strong>of</strong> Brominated Flame Retardants<br />
(BFRs) in Environmental Samples<br />
1.<br />
Michaela Nápravníková, Jana Pulkrabová<br />
Petra Hrádková, Jana Hajšlová, Jan Poustka, Dita Svobodová<br />
Department <strong>of</strong> Food Chemistry and Analysis, ICT Prague<br />
Technická 3, 16628 Prague 6, Czech Republic<br />
michaela.napravnikovascht.cz<br />
BFRs, represented by polybrominated diphenyl ethers (PBDEs), have become<br />
in recent years <strong>of</strong> a great concern because <strong>of</strong> endocrine disruption and other potential<br />
health adverse effects. Now a days, these highly persistent and bioaccumulative<br />
chemicals have been monitored in a wide range <strong>of</strong> environmental compartments<br />
(both biotic and abiotic) including humans. Due to very low concentrations <strong>of</strong> PB-<br />
DEs in these types <strong>of</strong> samples, which are approximately 10 – 100 times lower compared<br />
to levels <strong>of</strong> major halogenated persistent organic pollutants (POPs) – polychlorinated<br />
biphenyls (PCBs). Low detection limits (LODs) <strong>of</strong> respective analytical<br />
method are required. The potential <strong>of</strong> following modification <strong>of</strong> GC-MS procedure<br />
is presented in this study: (i) replacement <strong>of</strong> electron impact ionization (EI-MS) by<br />
negative chemical ionization (NCI-MS), (ii) the use <strong>of</strong> programmable temperature<br />
vaporization (PTV) instead <strong>of</strong> commonly used splitless injection and (iii) the use<br />
<strong>of</strong> comprehensive two-dimensional (orthogonal) gas chromatography coupled to<br />
time-<strong>of</strong>-flight mass spectrometry (GC×GC–TOF MS).<br />
This is study was undertaken within the projects MSM 6046137305 and NPV<br />
II (2B06151) both supported by the Ministry <strong>of</strong> Education, Youth and Sports <strong>of</strong> the<br />
Czech Republic.<br />
Keywords: PBDE; PTV; GC-MS-EI; GC-MS-NCI
1-P57 Chemicals and Energy Form Biomass<br />
Ľudovít Polívka, Eva Ürgeová<br />
Department <strong>of</strong> Biotechnologies, Faculty <strong>of</strong> Natural Sciences,<br />
University <strong>of</strong> St. Cyril and Methodius in Trnava,<br />
Nám. J. Herdu 2, 917 01 Trnava, Slovakia;<br />
ludovit.polivka@ucm.sk<br />
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
Biomass as renewable sources is very important feedstock for biotechnological<br />
production food and non-food products. The chemical industry has used biotechnological<br />
processes for many years using natural and genetic modified biosystems<br />
form last two decades.<br />
Application a modern biotechnology including green biotechnology some recent<br />
reports predict production <strong>of</strong> 10% <strong>of</strong> all chemicals by the year 2010 and fine<br />
chemicals products or segments including chemical “building block” by the same<br />
year. Biotechnologies are the basic pillar <strong>of</strong> SUSCHEM and others European technological<br />
platforms.<br />
The survey <strong>of</strong> very important chemicals and pharmaceuticals products are referred.<br />
In connections with utilisation <strong>of</strong> biomass as a source <strong>of</strong> energy and chemicals,<br />
the new aspects <strong>of</strong> technology and products <strong>of</strong> biorafinery are presented.<br />
Keywords: biomass, chemical products, bioenergy, fine chemicals, biorafinery<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P58 Simultaneous Determination <strong>of</strong> Mercury, Lead<br />
and Cadmium in Aqueous Samples Using Picric<br />
Acid-Modified Carbon Paste Electrode<br />
1.<br />
Jose H. Santos, Sean Gerard Ward<br />
Department <strong>of</strong> Chemistry, University <strong>of</strong> Brunei Darussalam<br />
Tungku Link, Gadong BE141, Negara Brunei Darussalam<br />
joey@fos.ubd.edu.bn<br />
An environmentally friendly alternative to mercury electrodes for the analysis<br />
<strong>of</strong> heavy metals by anodic stripping voltammetry (ASV) is presented in this paper.<br />
Picric acid isolated from orange peel was utilized as a modifier for carbon paste electrode<br />
(CPE) and used as a working electrode in the ASV <strong>of</strong> mercury, lead and cadmium<br />
in aqueous samples and found to provide enhanced sensitivity in the analysis<br />
<strong>of</strong> these metal species. The overall detection procedure involves preconcentration <strong>of</strong><br />
the heavy metal ions on the electrode surface at open circuit, then cathodic electrolysis<br />
<strong>of</strong> the preconcentrated species in an acidic medium followed by a detection<br />
step using square wave anodic stripping voltammetry (SWASV). The best electrode<br />
contained 20% (w/w) <strong>of</strong> powdered picric acid and 80% (w/w) <strong>of</strong> carbon paste. The<br />
optimum operating conditions were 2–10 minutes preconcentration period in metal<br />
ion solution, followed by a 60-second cathodic electrolysis <strong>of</strong> the preconcentrated<br />
species and SWASV detection in 0.1 M HCl. Under these conditions the sensitivity,<br />
limit <strong>of</strong> detection and linear concentration range <strong>of</strong> the technique are reported.<br />
Keywords: heavy metal analysis, picric acid, anodic stripping voltammetry
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P59 Detection <strong>of</strong> Foreign Organic Substances in<br />
Water and Biological samples<br />
E. Savelieva, N. Goncharov, N. Koryagina, N. Khlebnikova, A. Radilov<br />
Research Institute <strong>of</strong> Hygiene, Occupational Pathology and Human Ecology,<br />
Saint-Petersburg, Russia.<br />
esavelieva @mail.ru<br />
In spite <strong>of</strong> rapid development <strong>of</strong> liquid chromatography and capillary electrophoresis,<br />
gas chromatography coupled with mass-spectrometry (GCMS) remains to<br />
take leading positions in the area <strong>of</strong> analysis <strong>of</strong> foreign organic substances in water<br />
and biological tissues. The method <strong>of</strong> solid-phase microextraction greatly extends<br />
possibilities <strong>of</strong> GCMS, taking into account sensitivity and selectivity <strong>of</strong> analysis, as<br />
well as unique opportunities to overcoming the matrix effect, that allows to develop<br />
universal procedures <strong>of</strong> analysis <strong>of</strong> toxic compounds in water, beverages, foods,<br />
environmental objects and biological samples (blood plasma, urea, organ and tissue<br />
homogenates). The latter is <strong>of</strong> great importance in practice <strong>of</strong> environmental<br />
expertise, toxicological and forensic laboratories. In our report we’ll give examples<br />
<strong>of</strong> solving problems as applied to organophosphates and fluoroacetates for direct<br />
GCMS analysis with their preliminary derivatization both in the sample and on<br />
micr<strong>of</strong>iber, as well as reactivation products <strong>of</strong> toxic compounds.<br />
Keywords: gas chromatography, mass spectrometry, microextraction,<br />
organophophates, fluoroacetate<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P60 Determination <strong>of</strong> Sulfonamides in water<br />
using Multiwalled Carbon Nanotubes Solid<br />
Phase Extraction and HPLC with Fluorescence<br />
Detector<br />
1. 0<br />
Stefania Simon, Dan Lupu, Alexandru R. Biris , Constantin Bele<br />
National Institute for Research & Development <strong>of</strong> Isotopic and MolecularTechnologies<br />
R-400293, Cluj-Napoca, Romania<br />
stefania@itim-cj.ro<br />
This work focuses on the application <strong>of</strong> SPE- HPLC analysis <strong>of</strong> six commonly<br />
used sulfonamides (sulfadiazine –SDZ, sulfapyridine –SPY , sulfamerazine –SRZ ,<br />
sulfisoxazole –SFX, sulfamethoxazole –SMO and sulfadimethoxine –SDM) in water<br />
samples.The method involves pre-concentration and clean-up by solid phase extraction<br />
( SPE ) using multiwalled carbon nanotubes<br />
( MWCNTs ) as adsorbent. . Parameters that might influence the extraction<br />
efficiency such as the pH sample and the sample volume were optimized in details.<br />
Final analysis was carried out by high performance liquid chromatography ( HPLC<br />
) coupled with fluorescence detection. Recoveries were ranged from 53.6 to 93.5 %<br />
with relative standard deviation below 7.3%.Limits <strong>of</strong> quantification were in the<br />
range <strong>of</strong> 22–40 ng L –1 .<br />
Keywords: Multi-walled carbon nanotubes; solid phase extraction;<br />
sulfonamides; HPLC
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P61 Microbiologial Remediation <strong>of</strong> Metal-<br />
Contaminated Soil<br />
Valéria Snopková, Katarína Jablonovská<br />
Iinstitute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice, Slovak Republic<br />
snopkova@saske.sk<br />
Heavy metals are widely used in many branches <strong>of</strong> industry and agriculture<br />
and hence they appear widespread in the environment. Unlike organic pollutants,<br />
heavy metals do not undergo degradation; therefore they tend to accumulate in<br />
soils and sediments. The occurrence <strong>of</strong> heavy metals in soils and their impact on<br />
ecosystems depends on several factors including the character <strong>of</strong> the contaminant,<br />
nature <strong>of</strong> the soil, climate and anthropogenic activities. Heavy metals affect the population<br />
<strong>of</strong> soil micr<strong>of</strong>lora and vegetation; enter the food chain, pose a threat to health<br />
<strong>of</strong> animals and humans and cause consequent economical problems.<br />
Several approaches have been applied for the remediation <strong>of</strong> soil contaminated<br />
with heavy metals. Conventional physical and chemical techniques should<br />
be combined with biological methods in order to meet ecological and economical<br />
acceptance. Bioremediation technologies use the abilities <strong>of</strong> living organisms for the<br />
attenuation <strong>of</strong> metal contaminations. Processes such as oxidative or reductive metal<br />
dissolution or precipitation, metal volatilization, sorption or accumulation are commonly<br />
used. Microorganisms, particularly bacteria and archaea, are able to mediate<br />
variety <strong>of</strong> processes that lead to mobilization/immobilization or transformation <strong>of</strong><br />
heavy metals. Presented work is a review <strong>of</strong> the bioremediation methods for cleaning<br />
<strong>of</strong> soil contaminated with heavy metals.<br />
Keywords: heavy metals, bioremediation<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P62 Distribution <strong>of</strong> Phthalic Acid Esters (DEPH,<br />
DBS) in Chicken Tissues and Organs<br />
1. 2<br />
Vlasta Stancová, Lenka Krátká, Alžběta Jarošová, Jiří Harazim, Pavel Suchý<br />
Mendel University <strong>of</strong> Agriculture and Forestry Brno<br />
Faculty <strong>of</strong> Agronomy, Zemedelska 1, 613 00, Brno, Czech Republic<br />
xwegsch0@node.mendelu.cz<br />
Phthalates, largely used as plasticiesers for PVC, are among the most important<br />
industrial chemicals and are produced in great quantities. These substances are<br />
also used in many other areas, such as in production <strong>of</strong> medical devices, packaging<br />
materials, toiletry products, housing equipment and textiles are thus omnipresent<br />
in the environment.<br />
Phthalic acid esters (PAEs) are considered highly hazardous to human health<br />
because they disrupt the hormonal balance and impair reproduction and development.<br />
PAEs have long been suspected in connection with rising infertility rates, particularly<br />
among men. Some <strong>of</strong> them are considered as potential carcinogens, teratogens<br />
and mutagens. Additionally, phthalates are suspected to trigger asthma and<br />
dermal diseases in children.<br />
The most common and toxic PAEs are di-(2-ethylhexyl)phthalate (DEHP) and<br />
dibutylphthalate (DBP). The aim <strong>of</strong> this study was to investigate real content <strong>of</strong><br />
these PAEs in samples <strong>of</strong> chicken’s muscle, skin, fat and liver. Chickens were fed by<br />
commercial feedstuffs with various content <strong>of</strong> PAEs. Phthalates were determined<br />
by HPLC with UV detection. It was confirmed lipolytical character <strong>of</strong> PAEs. The<br />
highest amount <strong>of</strong> phthalates was accumulated in fat (1,36–3,27 mg.kg -1 DEHP; 0,47–<br />
1,28 mg.kg -1 DBP) and skin (1,10–1,60 mg.kg -1 DEHP; 0,36–0,57 mg.kg -1 ).<br />
Keywords: phthalates, chicken, feed
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P63 Purification Process Influence on the PAH<br />
Determination in Real Soil Samples<br />
M. Stoupalová, M. Vávrová, L. Mravcová, V. Večerek<br />
University <strong>of</strong> Veterinary and Pharmaceutical Sciences Brno,<br />
Faculty <strong>of</strong> Veterinary Hygiene and Ecology<br />
Palackého 1–3, 612 42 Brno, Czech Republic<br />
stoupalovam@vfu.cz<br />
The study submitted was focused on the comparison <strong>of</strong> pre-analytical processes<br />
which can significantly influence results <strong>of</strong> xenobiotics’ trace and ultra-trace<br />
analyses and analyses <strong>of</strong> bio-active substances. A choice <strong>of</strong> inappropriate isolation<br />
and purification process can decrease analytes’ yield by up to 80%. Extracts were acquired<br />
via soil samples’ microwave extraction and subsequently purified by means<br />
<strong>of</strong> column chromatography. There were two purification processes compared. During<br />
the first process, the sorbent used was silica gel and during the second process,<br />
sorbents used were silica gel and florisil. On the basis <strong>of</strong> results acquired, it can be<br />
claimed that both processes mentioned are appropriate for PAH extracts purification.<br />
However, it is important to draw the attention to the fact that during such<br />
group determination (18 PAH agents), the structure and chemical properties <strong>of</strong><br />
individual PAH are also substantial. The difference was evident namely at higher<br />
molecular mass PAH, at which better result were reached via silica gel/florisil purification<br />
process.<br />
This work was supported by the grant given by Ministry <strong>of</strong> Education, Youth<br />
and Sports <strong>of</strong> the Czech Republic no. MSM 6215712402.<br />
Keywords: PAH, clean-up, soil<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P64 The Optimalisation <strong>of</strong> SPME Method for<br />
Determination <strong>of</strong> Essential Oils in Spice<br />
1.<br />
M. Stoupalová, H. Pleskačová, M. Vávrová, L. Mravcová, V. Večerek<br />
University <strong>of</strong> Veterinary and Pharmaceutical Sciences Brno,<br />
Faculty <strong>of</strong> Veterinary Hygiene and Ecology<br />
Palackého 1–3, 612 42 Brno, Czech Republic<br />
stoupalovam@vfu.cz<br />
The main subject <strong>of</strong> this contribution was an optimalization <strong>of</strong> solid phase microextraction<br />
(SPME) method used for the determination <strong>of</strong> contentual substances<br />
in spice. During the SPME method development, there were tested two stationary<br />
phases <strong>of</strong> fibres used, as well as the sorption length, preheating and sorption temperature.<br />
The optimalized method proceeds in the following fashion: sample preheating<br />
for 5 minutes, 15 minutes’ sorption per fibre PDMS/DVB (65 mm) at the<br />
temperature <strong>of</strong> 30 °C from the head-space. Analytes were determined via GC/MS.<br />
Contentual substances identification was performed on the basis <strong>of</strong> comparison to<br />
the mass spectra library. By means <strong>of</strong> this method, samples <strong>of</strong> thyme, marjoram,<br />
origanum and caraway were measured.<br />
This work was supported by the grant given by Ministry <strong>of</strong> Education, Youth<br />
and Sports <strong>of</strong> the Czech Republic no. MSM 6215712402.<br />
Keywords: SPME, GC/MS, spice
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P65 DTA and Fluorescence Spectra <strong>of</strong> Humic Acids as<br />
Indicators <strong>of</strong> Human Influence on Soil<br />
Nora Szombathová, Jörg Luster, Božena Debska, Anton Zaujec,<br />
Milan Macák, Erika Tobiašová, Juraj Chlpík, Vladimír Šimanský<br />
Slovak University <strong>of</strong> Agriculture<br />
Tr. A. Hlinku 2, 949 76 Nitra, The Slovak Republic<br />
Nora.Szombathova@uniag.sk<br />
We investigated differences in absorptive, fluorescence and thermogravimetric<br />
characteristics between humic acids (HA) isolated from humus horizons <strong>of</strong> soils<br />
with similar properties, but located in different ecosystems (agroecosystem and<br />
nearby forest ecosystem).<br />
Obtained results showed that values <strong>of</strong> absorbance ratios were significantly<br />
lower in HA isolated from cultivated soil compared to forest. This indicates higher<br />
degree <strong>of</strong> nucleus condensation and/or higher aromaticity <strong>of</strong> HA isolated from cultivated<br />
soil. Fluorescence spectra <strong>of</strong> the HA exhibited two major signals - one indicated<br />
highly conjugated aromatic compounds and a second peak indicated simple<br />
phenolics. Peaks were located at the same positions, and differed only in fluorescence<br />
intensity, which was higher for HA isolated from cultivated soil. The degree<br />
<strong>of</strong> aliphaticity ascertained thermogravimetrically was lower in HA isolated from<br />
cultivated soil compared with forest soil, what confirmed higher condensation or<br />
humification degree <strong>of</strong> HA isolated from cultivated soil.<br />
The results presented in this work confirmed, that investigated characteristics<br />
<strong>of</strong> HA can be a sensitive index <strong>of</strong> structural changes between cultivated and natural<br />
soils, thus, they can be used as an indicator <strong>of</strong> anthropogenic influence on soil.<br />
Keywords: fluorescence spectra, DTA analysis, humic acids<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P66 Evaluation <strong>of</strong> Heavy Metals Mobility in the<br />
Sediments from the Hnilec River, Slovakia<br />
1.<br />
Oľga Šestinová, Ján Brehuv, Jozef Hančuľák ,Tomislav Špaldon, Erika<br />
Fedorová<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, 043 53 Košice, Slovak Republic<br />
sestinova@saske.sk<br />
The aim <strong>of</strong> our work was to determine released, potentially mobile and mobile<br />
heavy metals (Cu, Ni, Pb) forms in the contaminated sediments from the Hnilec<br />
river (Slovakia).<br />
The sediment samples from eight localities from Hnilec River situated in the<br />
area <strong>of</strong> water reservoir Ruzin, water reservoir Palcmanská Maša were analysed.<br />
The one-shot extraction <strong>of</strong> sequential leaching according to Tessier procedure<br />
was used for isolation <strong>of</strong> individual forms. The extraction was based on already<br />
known concentrations <strong>of</strong> total heavy metals contents, which have been observed for<br />
many years.<br />
The bottom sediments occuring in water reservoir are results <strong>of</strong> erosion and<br />
sedimentation process in their river-basin. They accumulate different pollutants,<br />
which have natural or anthropogenic origin.<br />
Heavy metals in sediments occur in various forms and bonds. Their binding<br />
forms show various mobility degrees, various forms <strong>of</strong> transport to subterranean<br />
and surface waters and bio-facility for plants and animals as well.<br />
Except the released forms, metals can be fixed also in the potentially mobile<br />
and mobile forms that are the most important for evaluation <strong>of</strong> the soil bio-toxicity.<br />
These metals may come directly from weathering process <strong>of</strong> rocks, where the<br />
soil-forming process influences their concentration and distribution. Moreover, they<br />
also come into sediment as result <strong>of</strong> the anthropogenic human activity.<br />
Keywords: sequential extraction, sediment, pollution
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P67 Sulphates Reduction from Waste Water <strong>of</strong> Old<br />
Mine Loads<br />
T. Špaldon, J. Brehuv, J. Hančuľák, E. Fedorová, O. Šestinová<br />
Institute <strong>of</strong> geotechnics SAS<br />
Watsonova 45, 043 53 Košice<br />
spaldon@saske.sk<br />
This contribution briefs about sulphates reduction <strong>of</strong> acid mine water. We used<br />
physical and chemical methods <strong>of</strong> cleaning, like precipitation, neutralisation, sorption<br />
and ion-changing by ion-changers. The first step was testing <strong>of</strong> sulphates reduction<br />
by Ca(OH) 2 and Al- ions (sodium aluminate) By this method was achieved almost<br />
100% effect <strong>of</strong> sulphates elimination. Next step was testing <strong>of</strong> various kinds <strong>of</strong><br />
sorbents, ion-changers and then mutual combinations. (active carbon, zeolite from<br />
N.Hrabovec, annorganic composite sorbent Slovakite, ion-changers katex and anex)<br />
All these tests were performed in dynamic regime. Conclusion <strong>of</strong> contribution is<br />
grafical comparing <strong>of</strong> sulphates reduction effects by selected reagents.<br />
Keywords: acid mine water, dynamic regime, sorption, ion-changers,<br />
precipitation<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P68 Arsenic Removal From Water by Synthetic<br />
Akaganeite<br />
1.<br />
Katarína Štefušová, Miroslava Václavíková, George P. Gallios,<br />
Štefan Jakabský<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, SK-043 53 Kosice, Slovakia<br />
vaclavik@saske.sk<br />
Synthetic akagenite (β-FeOOH) was studied as potential sorbent for the removal<br />
<strong>of</strong> arsenic from model aqueous solutions. The material was prepared by hydrolysis<br />
<strong>of</strong> partially neutralized FeCl 3 , and fully characterized by chemical analysis as<br />
well as powder X-ray diffraction, electron microscopy TEM/SEM, specific surface<br />
measurements (BET). Specific surface area <strong>of</strong> sorbent was 151.30 m 2 /g. Electrophoretic<br />
mobility measurements <strong>of</strong> akaganeite particles and consequently zeta potential<br />
calculations were performed in order to describe the surface charge <strong>of</strong> the sorbent.<br />
The point <strong>of</strong> zero charge (PZC) <strong>of</strong> akaganeite was achieved at pH 7.56. Moreover,<br />
the chemical speciation <strong>of</strong> water solutions containing arsenic oxyanions in various<br />
ratios was calculated with the aid <strong>of</strong> computer program and their interaction with<br />
Fe oxide species is discussed.<br />
Arsenic removal from aqueous solutions was investigated using batch adsorption-equilibrium<br />
experiments. Initial As concentration was in the range 20-200 mg/L<br />
and the sorbent concentration was 2 g/L. All experiments were carried out at ambient<br />
temperature (22±1°C) The effect <strong>of</strong> pH, ionic strength and initial arsenic concentration<br />
were investigated. Experimental data were modeled using Freundlich<br />
equation and adsorption parameters (K, b, R 2 ) were determined. Maximum sorption<br />
capacity <strong>of</strong> akaganeite was 49.97 mg <strong>of</strong> As per g <strong>of</strong> sorbent.<br />
Keywords: arsenic, akaganeite, sorption, zeta potential
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P69 The EPR Study <strong>of</strong> Particulate Matter<br />
Nadežda Števulová, Adriana Eštoková, Pavel Stopka<br />
Technical University <strong>of</strong> Košice, Civil Engineering Faculty,<br />
Institute <strong>of</strong> Building and Environmental Engineering,<br />
Vysokoškolská 4, 042 00 Košice, Slovak Republic<br />
Nadezda.Stevulova@tuke.sk,<br />
In recent years the role <strong>of</strong> particulate matter in environmental and health areas<br />
has come under increased attention <strong>of</strong> experts and public. The PM 10 and PM 2,5 concentrations<br />
show much higher correlation to the negative health effects in comparison<br />
to the total suspended particulate matter. Building constructions and building<br />
materials play an important role in indoor particulate matter contamination due to<br />
particles infiltration through joint construction leakages and material distribution<br />
and deposition processes.<br />
The dust particles are dangerous not only because <strong>of</strong> their high concentrations<br />
in dependence on their particle size but also because <strong>of</strong> their nature. The surface <strong>of</strong><br />
the inhaled particles, which determines the biological response, is large. The surface<br />
reactivity <strong>of</strong> particles depends on the number <strong>of</strong> reactive spots on the dust particles<br />
surface and on the distribution <strong>of</strong> various sites (free radicals and paramagnetic species)<br />
at the surface. It determines the pathogenic potential <strong>of</strong> inhaled particles.<br />
This work is concerned with the particulate matter reactivity investigation by<br />
concentration <strong>of</strong> surface active centres. The determined surface spin concentrations<br />
obtained from EPR spectra were high.<br />
The presence <strong>of</strong> transition metal ions in a low oxidation state, typically iron<br />
Fe 3+ , copper Cu 2+ and manganese Mn 2+ which have to be regard as a possible cause<br />
<strong>of</strong> toxicity were determined.<br />
Keywords: particulate matter, surface active centers<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P70 Selection <strong>of</strong> Packing Materials for Bi<strong>of</strong>ilter<br />
Development<br />
1. 0<br />
Iveta Štyriaková, Alexandra Vašková<br />
Department <strong>of</strong> Biotechnology, Institute <strong>of</strong> Geotechnics <strong>of</strong> the Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, 043 53 Košice, Slovakia<br />
bacil@saske.sk<br />
Bi<strong>of</strong>iltration is a potential alternate process for treatment <strong>of</strong> large volumes <strong>of</strong><br />
wastewaters containing low concentration <strong>of</strong> heavy metals. In order to select a suitable<br />
packing material for the treatment <strong>of</strong> polluted water and better understand the<br />
influence <strong>of</strong> the packing material properties upon the bacterial cell adhesion and the<br />
removal efficiency <strong>of</strong> three metals.<br />
The individual mineral phases <strong>of</strong> silicates (zeolite, bentonite, quartz sands) and<br />
carbonates (magnezite, calcite) can control an efficiency <strong>of</strong> bi<strong>of</strong>iltration when sorption<br />
and precipitation <strong>of</strong> metals occurs. Moreover, in both cases, Zn, Cu, Pb were<br />
accumulated at the mineral and cell surface as precipitates.<br />
Removal <strong>of</strong> Zn from solution by silicate was lower efficient, 20% Zn by zeolite,<br />
46% by bentonite, 21% by quartz sands was removed from the 0.5mM solution,<br />
while up to 55% by calcite and 88% by magnezite. Removal <strong>of</strong> Cu was similar approximately<br />
24%. Pb was very effective removed 93% by bentonite and magnezite<br />
and 74% by zeolite and calcite. The affinity series for bacterial removal <strong>of</strong> these metals<br />
decrease in the order Pb > Zn > Cu.<br />
Keywords: sorption, minerals
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P71 Antibiotic Effects Of The Naphtoquinonic<br />
Derivatives On Gram-Positive And Gram-<br />
Negative Germs<br />
Radu Tamaian, Nadia Păun, Andreea Iordache, Raluca Vremeră,<br />
Ştefania Broscăţean<br />
National Research and Development Institute for Cryogenics and Isotopic Technologies – ICIT<br />
Râmnicu Vâlcea<br />
Uzinei Street No. 4, PO 4, BOX 10, Zip Code 240050, Râmnicu Vâlcea, Romania<br />
tradu@icsi.ro<br />
Intestinal bacteria and enterococcus are known as being contaminated pathogenetic<br />
agents <strong>of</strong> aliments and water. In this paper it was followed the antibiotic<br />
effect (bacteriostatical and bactericid) <strong>of</strong> dichlor derivatives <strong>of</strong> 1,4 naphtoquinones:<br />
2,3-dichloro-1,4 naphtoquinones (diclone) on those pathogenetical agents. For<br />
testing there were used both Gram-positive coccus Enterococcus faecalis (ATCC 29212<br />
and ATCC 19433), and Gram-negative motile bacteria Enterobacter aerogenes (ATCC<br />
13048). Diclone‘s grade <strong>of</strong> remanence, in the culture medium, it was determined<br />
through chromatographical techniques.<br />
Keywords: enterobacteria, enterococcus, diclone<br />
1. 1
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P72 Practical Application in Agriculture <strong>of</strong> the<br />
Magnesium Products Industry Waste<br />
1. 2<br />
Lidia Taubert, Hortensia Rădulescu, S. A. Kiss, R. Kastori,<br />
Ecaterina Princz, Éva Stefanovits-Bányai<br />
Chemistry Institute – Timişoara <strong>of</strong> the Romanian Academy<br />
Bv. Mihai Viteazu No.24, 300223, Timişoara, Romania<br />
lidiat@acad-icht.tm.edu.ro<br />
The paper presents the impact <strong>of</strong> some mineral additions resulted as waste<br />
from the magnesium products industry on soil fertility and oat plants (Avena sativa<br />
L.) nutrition.<br />
The industrial process <strong>of</strong> magnesium carbonate and oxide manufacturing from<br />
dolomites by carbon dioxide leaching generates large amounts <strong>of</strong> calcium carbonate<br />
as waste; this also contains appreciable amounts <strong>of</strong> magnesium carbonate and<br />
low contents <strong>of</strong> solid impurities like iron, copper, manganese, zinc and chromium<br />
compounds. Crusts deposed on the same industrial equipment could represent a<br />
second source <strong>of</strong> mineral supplements for the soil treatment.<br />
Four different doses <strong>of</strong> each mineral addition were administered on a low fertile<br />
acid soil. The effects on soil indicate that its reaction turns from acid to neutral and<br />
an increase <strong>of</strong> the essential and trace elements content was established. The results<br />
show that both mineral supplements have improved the seeds germination as well<br />
as the plants growth and nutrition, reflected in the number <strong>of</strong> risen plants and plant<br />
size. In order to improve other physiological characteristics <strong>of</strong> oat plants and the<br />
uptake process <strong>of</strong> nutritive elements as well as the protein content, an ammonium<br />
nitrate fertilizer was applied too.<br />
The mineral supplements from the magnesium products industry were successfully<br />
tested as amendment for low fertile acid soils and as nutrients for oat<br />
plants in mixture with a nitrogen fertilizer.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P73 Possibilities <strong>of</strong> Objective Odorisation Control<br />
<strong>of</strong> Natural Gas<br />
Daniel Tenkrát, Ondřej Prokeš, František Humhal<br />
Ústav plynárenství, koksochemie a ochrany ovzduší; VŠCHT Praha<br />
Technická 5; 166 28 Praha 6<br />
tenkratd@vscht.cz<br />
The possibility <strong>of</strong> use <strong>of</strong> the objective odorisation control <strong>of</strong> natural gas instead<br />
<strong>of</strong> the subjective method is discussed in this paper. The subjective method <strong>of</strong> odorisation<br />
control is dependent on individual olfactory perception <strong>of</strong> each examiner<br />
who is responsible for the measurement while the objective method is based on<br />
instrumental (analytical) estimation <strong>of</strong> an odorant concentration in natural gas.<br />
The aim <strong>of</strong> these experiments was to verify a minimal safe odorant concentration<br />
in natural gas which would meet the requirements for evoking the warning<br />
grade <strong>of</strong> an odorisation level (i.e. at latest at 20% <strong>of</strong> lower explosion limit in mixture<br />
with air).<br />
Keywords: odorisation, natural gas, measurement<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P74 Contamination <strong>of</strong> Soil and Alimentary wheat in<br />
Zemplínska Polluted Area<br />
1.<br />
Ján Tomáš, Juraj Čéry, Ladislav Lahučký, Janette Musilová<br />
Department <strong>of</strong> Chemistry,<br />
Slovak Agricultural University in Nitra, Slovak Republic<br />
jan.tomas@uniag.sk<br />
Metallic pollution <strong>of</strong> soil in Zemplínska polluted area has begins by uptake <strong>of</strong><br />
heavy metals into the soil, mainly in vicinity <strong>of</strong> chemical and industrial factories as<br />
well as <strong>of</strong> many others sources.<br />
For inorganic risky elements are considered all risky elements and their compounds<br />
<strong>of</strong> mineral nature, which are in specific concentration and their activity affect<br />
harmfully on compounds <strong>of</strong> environment and also on soil. They decrease yield<br />
production as well as their technological, nutritional and sensorial value, mainly<br />
health safety and safety <strong>of</strong> growth agricultural products. Significantly are monitoring<br />
these risky elements: Cr, Pb, Cd, Zn, Cu, Hg, Ni, Co, Se, As and F. From observed<br />
<strong>of</strong> heavy metals the enhanced limit value for pseudo-total content <strong>of</strong> heavy metals in<br />
aqua regia were evaluated for Cd, Ni and Co. For Cd the limit value is 0.7 mg.kg -1 ,<br />
it was exceed at five gained points in range 0.70–0.96 mg.kg -1 . Interval <strong>of</strong> Cd content<br />
was in range 0.40–0.96 mg.kg -1 . The highest enhanced limit value was 37 %. Contamination<br />
<strong>of</strong> soil was in one case obvious also for Ni and enhanced limit value was<br />
15.6 %. The most significant enhanced limit value by Co was 15.0 mg.kg -1 ; this value<br />
was exceeded at seven gained positions. The highest <strong>of</strong> overloading was 46.6 %.<br />
Keywords: heavy metals, risky elements, soil, gained points
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P75 Determination <strong>of</strong> Changes in Soil Organic<br />
Matter Content through Carbon and Nitrogen<br />
Labile Fractions<br />
Tomáš Tóth, Erika Tobiašová, Vladimír Šimanský<br />
Department <strong>of</strong> Pedology and Geology,<br />
Slovak Agricultural University in Nitra<br />
Erika.Tobiasova@uniag.sk<br />
We studied the suitability <strong>of</strong> carbon and nitrogen labile fractions for determination<br />
<strong>of</strong> soil organic matter (SOM) changes in farming systems. Research focus on<br />
possibilities <strong>of</strong> soil organic matter changes evaluation through C T -total organic carbon,<br />
C L -labile carbon, C NL -non-labile carbon, L C -lability <strong>of</strong> soil organic carbon, LI C<br />
-lability index <strong>of</strong> carbon, CPI -carbon pool index, CMI -carbon management index,<br />
N T -total nitrogen, N L -potentially mineralizable nitrogen, N NL –non-labile nitrogen,<br />
L N -lability <strong>of</strong> soil nitrogen, LI N -lability index <strong>of</strong> nitrogen, NPI -nitrogen pool index<br />
and NMI -nitrogen management index. In 1990, the field experiment was established<br />
on loamy Orthic Luvisol. Content <strong>of</strong> labile carbon (C L ) was in average higher<br />
in ecological farming system (ES) 2175 g.kg -1 than in integrated farming system (IS)<br />
1854 g.kg -1 . Values <strong>of</strong> C L were higher in fertilized variants 2206 g.kg -1 than in variants<br />
without application <strong>of</strong> fertilizers 1823 g.kg -1 . These parameters are more sensitive<br />
than total carbon and nitrogen contents for determination <strong>of</strong> changes in SOM in<br />
shorter period. They seem to be suitable for agro-ecosystems, as well. From tested<br />
indexes, L C and CMI were the most sensitive on SOM changes determination.<br />
Keywords: Labile Carbon and Nitrogen; Soil Organic Matter<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P76 Distribution <strong>of</strong> Heavy Metals in Soil<br />
1.<br />
Tomáš Tóth, Alena Vollmannová, Tomáš Ján, Peter Lazor<br />
Department <strong>of</strong> Chemistry, Slovak Agricultural University in Nitra<br />
E-mail: tomas.toth@uniag.sk<br />
The soil quality is derived from its loading by hazardous substances. The loading<br />
<strong>of</strong> soil occurs when the soil is not able to lower the negative influences <strong>of</strong> the<br />
risk heavy metals. The reference value, which represents natural content <strong>of</strong> heavy<br />
metals in soil, forms the basis for evaluation <strong>of</strong> the content <strong>of</strong> heavy metals in soil.<br />
The important parameters for the input <strong>of</strong> heavy metals from soil into plants are: the<br />
soil reaction, the content and the quality <strong>of</strong> organic matter, the nutrition <strong>of</strong> plants,<br />
cation exchange and sorptive capacity, the microbiological activity, the oxidation<br />
and reduction potential, the amount and the quality <strong>of</strong> the clay fraction <strong>of</strong> soil and<br />
the methods <strong>of</strong> soil cultivation, etc. The extracfability for individual ectractans is<br />
evident : 2 mol.dm -3 HNO 3 : Cu > Cd > Pb > Zn > Cr; 0,05 mol.dm -3 EDTA : Cu ><br />
Cd > Pb > Zb > Cr; 0,01 mol.dm -3 CaCl 2 : Cd > Cu > Pb > Zn > Cr. 2. It is necessary<br />
to emphasize the differences in solubility between the highly contaminated eutric<br />
cambisols <strong>of</strong> Stredný Spiš and other analyzed soils. The different solubility is in all<br />
extractants and heavy metals except the solubility <strong>of</strong> chromium in 0,05 M EDTA<br />
and 0,01 M CaCl 2 . It is probably connected with the high portion <strong>of</strong> heavy metals <strong>of</strong><br />
immissional origin. The other analyzed soil subtypes have a low solubility <strong>of</strong> Zn in<br />
HNO 3 and EDTA in luvic stagnosols.<br />
Keywords: heavy metals, soi hygiene
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P77 Separation and Preconcentration <strong>of</strong> Arsenic,<br />
Antimony, Selenium and Tellurium on Modified<br />
Silicagels for their Determination by ICP-AES<br />
Kristýna Urbánková, Lumír Sommer, Martin Moos<br />
Brno University <strong>of</strong> Technology, Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova 118, 612 00 Brno<br />
urbankova@fch.vutbr.cz<br />
Modified silica sorbents SeparonTM SGX C18, C8, CN, NH , RPS and Phenyl<br />
2<br />
were tested for preconcentration <strong>of</strong> 0,25–5 mg.l –1 from 50–1000 ml sample volume<br />
<strong>of</strong> As, Sb, Se and Te in the form <strong>of</strong> ion associates with cationic surfactants. Carbethoxy-pentadecyltrimethylammonium<br />
bromide (Septonex ® ) in concentration<br />
0,005 mol.l-1 was suitable for the purpose. Septonex ® with selected organic reagents<br />
4-(2-Pyridylazo)resorcinol, Pyrollidincarbodithionate, diethyl-dithiokarbamidate,<br />
thiourea, 8-hydroxyquinoline-5-sulphononic acid and 1,2-dihydroxybenzene were<br />
successfully used for quantitative sorption at pH 7 and after elution <strong>of</strong> 10 ml <strong>of</strong> acetone<br />
with ethanol in ratio 1 : 1 in the presence <strong>of</strong> 0,1M HCl. The enrichment factor<br />
for the elements on Separon ® reaches 100.<br />
The influence <strong>of</strong> Na + , K + , Ca2+ , Mg2+ , Fe3+ , Al3+ – – – 2– 3– or NO , Cl , Br , SO4 and PO4 as<br />
3<br />
well as the mixture <strong>of</strong> heavy metal ions on the sorption was studied. Organic solvents<br />
and the excess <strong>of</strong> acids were removed by evaporaton prior to the determination<br />
by ICP-AES. Optimalized procedures were used for the determination <strong>of</strong> arsenic,<br />
antimony, selenium and tellurium in the form <strong>of</strong> anionic speciations in natural<br />
waters.<br />
Keywords: ICP-AES, preconcentration<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P78 Multicomponent Microdetermination <strong>of</strong><br />
Arsenic, Antimony, Tellurium, Selenium Besides<br />
<strong>of</strong> Thallium by ICP-MS in Waters<br />
1.<br />
Kristýna Urbánková, Jiří Machát, Lumír Sommer<br />
Brno University <strong>of</strong> Technology, Chemistry and Technology <strong>of</strong> Environmental Protection<br />
Purkyňova 118, 612 00 Brno<br />
urbankova@fch.vutbr.cz<br />
Arsenic, antimony, selenium, tellurium and thallium in the form <strong>of</strong> isotopes<br />
75 As, 82 Se, 125 Te, 121 Sb and 205 Tl were determined for less than 5 µg.L -1 in solution with<br />
0.5% HNO 3 .The practical detection limits for various kinds <strong>of</strong> waters are 0.05-0.08<br />
for µg L -1 75 As, 0.04- 0.03 µg.L -1 82 Se, 0.03-0.01 µg.L -1 121 Sb, 0.3-0.02 µg.L -1 125 Te and<br />
0.005-0.2 µg.L -1 205 Tl. For 100 µg .L -1 <strong>of</strong> the element the error does not exceed 20% in<br />
the presence <strong>of</strong> 50 mg.mL -1 Ca, Mg, Al, Fe(III) or 10% in the presence <strong>of</strong> 200 mg.L -1<br />
Na or K. For multicomponent solutions with 1 – 100 mg.L -1 <strong>of</strong> Al, Ba, Ca, Cd, Co, Cr,<br />
Cu, Fe, Mg, Mn, Na, Ni, Pb, Ti, and Zn the signal decrease <strong>of</strong> the microelements is<br />
not larger than 35% for 82 Se and 125 Te and 30% for 75 As, 121 Sb and 205 Tl. Internal standards<br />
such as 72 Ge and 209 Bi can be successfully used with respect to the particular<br />
mass <strong>of</strong> the microelements.<br />
Drinking, surface and mineral waters can be analyzed with spikes ≤ 1-5 µg.L -1<br />
75 As, 82 Se, 121 Sb, 125 Te and 205 Tl, sea and mine waters using standard addition method<br />
when the signals were always previously corrected against ultra pure water.<br />
Keywords: ICP-MS, water
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P79 Treating Wastewater by Using <strong>of</strong> Bioceamic<br />
Filters<br />
A. Vaskova, I. Styriakova, D. Kupka, V. Snopkova<br />
Department <strong>of</strong> Biotechnology, Insitute <strong>of</strong> Geotechnics <strong>of</strong> the Slovac Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Kosice, Slovakia<br />
avaskova@saske.sk<br />
The using <strong>of</strong> bioceramic filters based on iron oxides, clay minerals and bacteria<br />
could be an alternative way to remove heavy metals from industrial effluents.<br />
Synthetic iron oxides including goethite, lepidocrocite, maghemite, magnetite<br />
and hematite were prepared in the laboratory by hydrolysis <strong>of</strong> Fe 3+ acid solutions or<br />
by controlled oxidation <strong>of</strong> Fe 2+ solutions followed by Fe 3+ precipitation. The main<br />
mineral phases were confirmed by X-ray diffraction and Mössbauer spectroscopy.<br />
A number <strong>of</strong> studies on metal uptake using clay minerals have been conducted<br />
and results have shown good adsorption properties. Due to its metal-binding capacity,<br />
high surface area, natural materials such as zeolite, bentonite, kaolinite will be<br />
used for the treatment <strong>of</strong> metal-contaminated waste waters.<br />
In this study two bacterial strains were isolated from the heavy metal pollluted<br />
waste water <strong>of</strong> industry plant: Bacillus megaterium and Pseudomonas diminuta.<br />
The resistance <strong>of</strong> bacterial strains to copper, zinc and chromium was tested. The<br />
bacterial isolate Bacillus megaterium could grow at a concentration ranging from<br />
52–780 mg Cr/l , 52–260 mg Zn /l and max 52 mg Cu /l and Pseudomonas diminuta<br />
at a concentration ranging from 52–520 mg Cu/l , 52–260 mg Zn /l and max 52 mg<br />
Cr/l , at temperature 25°C.<br />
Keywords: bioceramic filter, bacteria<br />
1.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P80 Selected MUSK Compounds in Abiotic and Biotic<br />
Samples<br />
1.100<br />
M. Vávrová, D. Štenclová, E. Blahová, J. Mareš, M. Mášová, J. Čáslavský<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 61200 Brno<br />
vavrova@fch.vutbr.cz<br />
Synthetic musk compounds are fragrance substances commonly used as fragrant<br />
constituents <strong>of</strong> detergents, cleaning and washing agents, and cosmetics. At<br />
present, there are more than three thousand synthetic fragrances being used for<br />
perfuming commercial products. However, some musk compounds have proved to<br />
accumulate in the environment as well as in mammal tissues <strong>of</strong> human body, and<br />
hence classified as persistent organic pollutants (POPs). This thesis was focused on<br />
some synthetic fragrances produced by the AROMA Prague Co. and musk xylene,<br />
musk ketone and tonalide. The aim <strong>of</strong> this study was to perform a method optimisation<br />
for the determination <strong>of</strong> selected fragrances in waste water, sewage sludge and<br />
tissues <strong>of</strong> fish. Different extraction techniques for the separation <strong>of</strong> studied compounds<br />
from solid matrices were compared. The identification and quantification <strong>of</strong><br />
analytes was carried out by high resolution gas chromatography – mass spectrometry<br />
(HRGC/MS).<br />
Acknowledgement: Financial support from the COST Action 636, Project<br />
No. OC-183<br />
Keywords: synthetic musk compounds, waste water, sewage sludge,<br />
tissues <strong>of</strong> fish, gaschromatography, mass spectrometry
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P81 Determination <strong>of</strong> Surfactants Included in<br />
Sewage Water<br />
Milada Vávrová, Lenka Langová, Helena Zlámalová Gargošová,<br />
Kristýna Kubíčková, Vladimír Večerek<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 61200 Brno<br />
vavrova@fch.vutbr.cz<br />
Tensides rank among the surfactants with the ability to reduce surface tension.<br />
This ability is used to remove impurities. The thesis concentrates on the determination<br />
<strong>of</strong> tensides in sewage waters. These substances reach sewage waters from various<br />
cleansing and washing agents which are used both in households and industry.<br />
The theoretic part includes the basic classification <strong>of</strong> tensides, their characteristics<br />
and the requirements <strong>of</strong> the legislative <strong>of</strong> the Czech Republic on their content in<br />
sewage waters. The thesis is closed with estimation <strong>of</strong> the results <strong>of</strong> tenside content<br />
measuring done on the inflow and outflow <strong>of</strong> sewage waters on the premises <strong>of</strong> the<br />
Veterinary and Pharmaceutical University at Brno. The method <strong>of</strong> mobile analysis<br />
based on the reaction between the monitored substance and chemical agent was<br />
chosen for the tenside measuring. This method results in the origin <strong>of</strong> a colorful<br />
compound suitable for spectrophotometric determination.<br />
Acknowledgement: Financial support from Ministry <strong>of</strong> Education, Youth and<br />
Sports under MSM 6215712402 is greatly appreciated<br />
Keywords: tensides, mobile analytics, arbitration methods, sewage waters<br />
1.101
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P82 Examination <strong>of</strong> the Mutual Interaction <strong>of</strong> Heavy<br />
Metals in Course <strong>of</strong> Adsorption from Model<br />
Solutions<br />
1.102<br />
Ján Vereš, Tomáš Bakalár, Milan Búgel, Martin Sisol<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, SK-043 53 Kosice, Slovakia<br />
veres@saske.sk<br />
The research was focused on study <strong>of</strong> heavy metals removal from aqueous solutions<br />
using by different sorbents natural zeolite and synthetic zeolite Slovakit.<br />
The metals <strong>of</strong> interest were zinc, copper, nickel and lead. Heavy metals removal was<br />
investigated in batch adsorption-equilibrium experiments. The inicial concentration<br />
<strong>of</strong> heavy metals in stock solutions was in the range at 5-1000 mg/L. Sorption experiments<br />
were carried out at pH 5.5, at the sorbent concentration <strong>of</strong> 2g/L. All adsorption<br />
experiments were carried out at ambient temperature (22±1°C). The quantity <strong>of</strong><br />
elements in solution has been determined both before the introduction <strong>of</strong> sorbent<br />
and after the equilibrium time <strong>of</strong> 24 hours. The experimental data were modeled<br />
with Langmuir, Freundlich and Redlich-Peterson isotherms. Best sorption capacity<br />
was obtained on synthetic Slovakit, decrease in this order Pb>Ni>Cu>Zn.<br />
Keywords: adsorption, heavy metals, adsorption isotherm, zeolite, Slovakit
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P83 Fungicidal Effect <strong>of</strong> Printed Titanium Dioxide<br />
Layers<br />
Mária Veselá, Michal Veselý, Petr Dzik,<br />
Jana Chomoucká, Lenka Šupinová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno<br />
vesela@fch.vutbr.cz<br />
Microorganisms form an essential part <strong>of</strong> Earth life. They range almost everywhere.<br />
In course <strong>of</strong> many years people learned to use microorganisms to their benefit.<br />
But in many cases the microorganisms are unwanted and detrimental. There<br />
is a heavy risk <strong>of</strong> microbial contamination especially on places which require very<br />
high cleanness. This is the reason for research and development <strong>of</strong> new disinfection<br />
methods. In the last years the so-called self-cleaning surfaces have been <strong>of</strong> a great<br />
interest. Their self-cleaning properties are based on the photocatalytic activity <strong>of</strong><br />
titanium dioxide thin layers.<br />
UV radiation is required for generating <strong>of</strong> reactive oxygen radicals on titanium<br />
dioxide surfaces. Thus, such surfaces work as fungicidal or bactericidal agent.<br />
In this work, the fungicidal effect <strong>of</strong> titanium dioxide was studied. Titanium<br />
dioxide layers were prepared by sol-gel method and coated on soda-lime glasses by<br />
an inkjet printer. Candida vini phocatalytic degradation was studied in dependence<br />
<strong>of</strong> surface structure <strong>of</strong> printed titanium dioxide layers. Cell viability was measured<br />
using epi-fluorescence microscopy and kinetics <strong>of</strong> this photokilling process was<br />
evaluated.<br />
Keywords: yeast, printed layers, titanium dioxide<br />
1.10
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P84 Photocatalytic Disinfection <strong>of</strong> Water Using Ag/<br />
TiO 2<br />
1.10<br />
Mária Veselá, Michal Veselý, Jana Chomoucká, Michaela Lipenská<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno<br />
vesela@fch.vutbr.cz<br />
Common disinfection methods such as chlorination, ozonation and UV irradiation<br />
have their limitations. In the case <strong>of</strong> chlorination and ozonation, trihalomethanes<br />
and other carcinogenic disinfection by-products maybe generated. As for UV<br />
disinfection, the process may not be effective enough as some <strong>of</strong> bacteria may have<br />
mutated and developed resistance towards UV light<br />
New methods which can be capable to replace chlorination and ozonation in<br />
water treatment are <strong>of</strong> great interest. A photocatalytic process is one <strong>of</strong> them. By<br />
means <strong>of</strong> UV radiation, very reactive oxygen radical on titanium dioxide surfaces<br />
are generated. These radicals are very strong oxidative agent with very high disinfection<br />
potential.<br />
The photocatalytic disinfection process <strong>of</strong> yeast Hansenula anomala in water was<br />
studied in a multi tube flow reactor. The inner walls <strong>of</strong> tubes were coated by titanium<br />
dioxide using sol-gel process and dip-coating method. The kinetics <strong>of</strong> photocatalytic<br />
disinfection on pure titanium dioxide and titanium dioxide with deposited<br />
metallic silver islands were evaluated.<br />
Keywords: photokilling, yeast, flow-reactor
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P85 Laboratory Study <strong>of</strong> Arsenic Mobility in Stream<br />
Sediments and Impoundment Material using<br />
Column Experiments<br />
Veronika Veselská, Edgar Hiller<br />
Comenius University in Bratislava, Faculty <strong>of</strong> Natural Sciences, Department <strong>of</strong> Geochemistry<br />
Mlynská dolina, 842 15 Bratislava, Slovak Republic<br />
veselska@fns.uniba.sk<br />
High arsenic contents in the impoundment located near the village <strong>of</strong> Poša in<br />
eastern Slovakia, represent a serious environmental problem because <strong>of</strong> As mobilization<br />
from the impoundment material, its release in contaminated stream sediments<br />
<strong>of</strong> the Kyjov brook and its behaviour in contaminated stream sediments and<br />
impoundment material using column laboratory experiments was studied.<br />
The results <strong>of</strong> the column experiments showed that As release from the solid<br />
samples by water was likely controlled by Fe and Mn oxohydroxides and pH <strong>of</strong><br />
the sediments and leachates. It was also observed that extraction time was an important<br />
factor influencing the As release. The extent <strong>of</strong> As contamination in stream<br />
sediments and impoundment material was 20- up to 401- times higher as compared<br />
with the site-specific As background concentrations.<br />
The leaching behaviour <strong>of</strong> As was investigated in three stream sediment samples<br />
<strong>of</strong> the Kyjov brook (KY-100, KY-1000 a KY-2000) and one sample <strong>of</strong> the impoundment<br />
material (KY-0). The relative mobility <strong>of</strong> As was inversely proportional<br />
to the oxalate-extractable Mn content (R = -0,960*, α
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P86 Antibiotics in the Environment<br />
1.10<br />
H. Vítečková, L. Vydrová, M. Vávrová, L. Mravcová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno 612 00<br />
viteckova@fch.vubr.cz<br />
Antibiotics used in human and veterinary medicines are important group <strong>of</strong><br />
drugs. Using <strong>of</strong> these compounds leads to their spreading and acccumulating into<br />
the environment where undesirable resistance is formed. It has been proved that<br />
they block biological processes in wastewater treatment plants. They also harm natural<br />
ecosystems and may concentrate in food chain.<br />
Tetracyclines and sulfonamides were determinated in this work. The samples<br />
were collected from the municipal wastewater treatment plant and the veterinary<br />
wastewater treatment plant in Brno, The Czech Republic. The simple extraction<br />
method for sulfonamides and tetracyclines in wastewater has been developed. Sulfonamides<br />
were extracted by liquid-liquid extraction with ethylacetate and evaporated<br />
by a rotary vacuum evaporator. The evaporation residues were dissolved in<br />
methanole and mobile phase. The mixture <strong>of</strong> acetonitrile and formic acid in purified<br />
water was used as the mobile phase. Tetracyclines were extracted by SPE and acetonitrile<br />
and sulfuric acid was used as the mobile phase. The samples were filtered<br />
into the amber glass vials by membrane filters. The HPLC instrument equipped<br />
with diode array detector was used for analysis <strong>of</strong> the samples.<br />
Finantial support from the COST, Action 636, Project No. OC-183 is greatly<br />
acknowledged.<br />
Keywords: tetracyclines, sulfonamides, HPLC
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P87 The Fluorimetric Determination <strong>of</strong> Aluminium,<br />
Gallium and Indium with 8-Hydroxyquinoline-<br />
5-sulphonic acid in Aqueous and Submicellar<br />
Medium<br />
Šimon Vojta, Lumír Sommer<br />
Institute <strong>of</strong> Environmental Protection, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, 612 00 Brno (Czech Republic)<br />
vojta@fch.vutbr.cz<br />
Collinear fluorescence spectra appear for complexes with 8-Hydroxyquinoline-<br />
5-sulphonic acid (QSA) with λ max 495 nm for Al, 504 nm for Ga and In in dependence<br />
on pH. The fluorescence is highly increased in the presence <strong>of</strong> submicellar<br />
concentration <strong>of</strong> cationic surfactants, especially Zephyramine. The stoichiometry <strong>of</strong><br />
the components in the complexes is M:L = 1:1 – 1:3 in the absence <strong>of</strong> surfactant and<br />
M:L = 1:3 in the presence <strong>of</strong> cationic surfactant. The optimal concentration range for<br />
the determination <strong>of</strong> Al, Ga and In is 0.03-1 g.L -1 , the detection limits 0.03-0.04 g.L -1<br />
in the presence or absence <strong>of</strong> surfactant for normal and first derivative spectra. Fe 3+ ,<br />
fluoride, phosphate and excess <strong>of</strong> nitrate and bromide interfere in the absence and<br />
presence <strong>of</strong> Zephyramine.<br />
The first derivative spectra for pH 3, 8 and 4 with λ max 460 nm for Al, 472 nm for<br />
Ga and 478 nm for In do not bring advantages.<br />
For the determination <strong>of</strong> Al, Ga, and In pH 4, 3, and 8 in the presence <strong>of</strong> hexamethylentetramine<br />
or tetraborate and Zephyramine is suitable.<br />
Keywords: 8-hydroxyquinoline-5-sulphonic acid, Aluminium, Gallium, Indium<br />
complexes, fluorescence, cationic surfactants, first derivative spectra<br />
1.10
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P88 Surgical Polyester Fabric<br />
Impregnated by Cross-Linked Collagen<br />
1.10<br />
Lucy Vojtová,Pavel Filka, Josef Jančář<br />
Institute <strong>of</strong> Materials Science, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, 612 00, Brno, Czech Republic<br />
xcfilka@fch.vutbr.cz<br />
Proposed work was focused on the impregnation <strong>of</strong> biomedical permanently<br />
implantable polyester (PES) fabric with collagen type I in order to improve the biocompatibility<br />
<strong>of</strong> surgical fabric used for long time fixation <strong>of</strong> different organs.<br />
Coated air-dried collagen was subsequently cross-linked either by a commonly<br />
used formaldehyde resins or by a new water-soluble nontoxic carbodiimide solution.<br />
The cross-linked collagens embodied very good adhesion to the implantable<br />
fabric from which the collagen did not separate up to the time <strong>of</strong> total degradation.<br />
Based on the measured values the best result attained collagen cross-linked by<br />
carbodiimide, which had the lowest swelling degree related to the highest density<br />
<strong>of</strong> polymer network. This cross-linked collagen beard up against the hydrolytic degradation<br />
up to the 78 days in physiological solution at 37 °C. Within this time the<br />
cross-linked collagen is able to increase the biocompatibility <strong>of</strong> commercially used<br />
implantable fabric.<br />
Acknowledgement: This work was supported by the Ministry <strong>of</strong> Education,<br />
Youth and Physical Training <strong>of</strong> the Czech Republic under the research project MSM<br />
0021630501.<br />
Keywords: Collagen, surgical fabric, cross-linking.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P89 Soil Hygiene in Old Environmental Burden Areas<br />
Alena Vollmannová, Ján Tomáš, Daniel Bajčan, Peter Kováčik<br />
Faculty <strong>of</strong> Biotechnology and Food Sciences, Slovak University <strong>of</strong> Agriculture in Nitra<br />
Tr. A. Hlinku 2, 949 76 Nitra, Slovak Republic<br />
Alena.Vollmannova@uniag.sk<br />
The necessity <strong>of</strong> old environmental burden areas remedy is one <strong>of</strong> present environmental<br />
problems. The negative effect <strong>of</strong> the anthropogenic breach into the environment<br />
arised in the past still exists. In our work the soil hygiene <strong>of</strong> three various<br />
old environmental burden areas <strong>of</strong> the Slovakia is evaluated.<br />
The alluvial soils near <strong>of</strong> Štiavnica river running through the area long-time<br />
burden by intensive mine activity oriented on polymetallic ore mining are contaminated<br />
by high Zn (512 –2760 mg.kg -1 ), Cu (100–264 mg.kg -1 ), Cd (3.56–21.2 mg.kg -1 )<br />
and extremely high Pb (267–3260 mg.kg -1 ) contents.<br />
The observed soils surround <strong>of</strong> previous Nickel Smeltery Sereď can be evaluated<br />
from the aspect <strong>of</strong> risk metal contents as “clean” despite <strong>of</strong> weakly enhanced Cd,<br />
Cu, Ni and Co soil contents (respectively up to 2.00; 69.6; 49.2 and 24.4 mg.kg -1 ).<br />
In observed area surround previous Iron Ore Mine in Rudňany in the region<br />
<strong>of</strong> Middle Spiš the extremely high soil content <strong>of</strong> Hg was determined (up to 39.10<br />
mg.kg -1 ) and the soil contamination by As and Cu was confirmed (up to 43.4 resp.<br />
114.65 mg.kg -1 ).<br />
The rezidual metallic soil burden and potential follow contamination <strong>of</strong> the<br />
food chain in observed areas presents the potential risk for the human health.<br />
Keywords: soil hygiene, environmental burden areas<br />
1.10
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P90 EPR Study on Photoinduced Processes<br />
<strong>of</strong> Novel Quinolone Derivatives<br />
1.110<br />
Zuzana Vrecková, Vlasta Brezová, Maroš Bella, Viktor Milata<br />
Institute <strong>of</strong> Physical Chemistry and Chemical Physics,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
zuzana.vreckova@stuba.sk<br />
Novel quinolone derivatives were synthesized as potential anticancer and antimicrobial<br />
agents. The presence <strong>of</strong> extended π-electron system <strong>of</strong> quinolones results<br />
in their photosensitive properties; therefore UVA irradiation <strong>of</strong> quinolones can in-<br />
duce the photosensitive reactions with phototoxic responses. The photogenerated<br />
free radicals in the biological systems induce negative processes resulting in cell<br />
damage. On the contrary, the reactive oxygen intermediates can be used for therapeutic<br />
purposes in phototherapy or photochemotherapy.<br />
EPR spectroscopy was applied for the detection <strong>of</strong> photoinduced generation <strong>of</strong><br />
radical intermediates (especially superoxide anion radical) and singlet oxygen. The<br />
study <strong>of</strong> synthesized quinolones photoactivity upon UVA irradiation (metal-halide<br />
medium-pressure mercury lamp) evidenced that the photoexcitation in the pres-<br />
•– 1 ence <strong>of</strong> molecular oxygen resulted in the formation <strong>of</strong> O and O2 via Type I and<br />
2<br />
II photooxidation processes, which accomplished simultaneously. The highest capability<br />
to produce free radicals and 1O upon irradiation showed novel selenadia-<br />
2<br />
zolo-quinolones. The results <strong>of</strong> EPR investigations served as a basis to select suitable<br />
quinolone derivatives for the photobiological experiments on the different cell lines,<br />
as well as a proposal <strong>of</strong> synthesis <strong>of</strong> novel quinolone derivatives with the required<br />
photochemical properties.<br />
Keywords: quinolones, EPR spectroscopy, UV/vis spectroscopy
1-P91 The Boron in Kraft Pulp Mill<br />
and Influence In Waste Water<br />
Milan Vrška, Eva Gemzicka,<br />
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
STU Bratislava, FChPT, Ústav polymérnych materiálov, odd. chem. tech. dreva, celulózy a<br />
papiera<br />
Radlinského 9, 812 37 Bratislava<br />
eva.gemzicka@yahoo.com<br />
New chemicals are added to recovery line for process improvement. One <strong>of</strong> the<br />
others is Borax (NaBO 3 ) a chemical compound <strong>of</strong> boron. Borax is accumulated in<br />
chemical recovery line, but part <strong>of</strong> it is proceed to waste water.<br />
Boron and borate were controlled in waste water and sludges. The amount <strong>of</strong><br />
boron in waste water does not depend on pH. The boron is bound to borate and<br />
other compounds, more <strong>of</strong> it form small particulates. These particulates cause some<br />
problems in waste water analysis, therefore filtration is necessary<br />
Impact <strong>of</strong> borax addition and conditions in technological process have apparent<br />
effect <strong>of</strong> sludges filtration and next analysis. Using the OES ICP analytical method<br />
we obtained a new knowledge <strong>of</strong> boron behavior and his impact on technology<br />
parameters /chemical adding, insoluble matters … / in kraft pulp mill.<br />
Keywords: borax, boron, borate, recovery line, waste water, elements<br />
1.111
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P92 Contents <strong>of</strong> Different Fractions <strong>of</strong> Sulphur<br />
in Slovakia Soils<br />
1.112<br />
Anton Zaujec, Lýdia Jedlovská, Melánia Feszterová,<br />
Department <strong>of</strong> Environmentalism and Zoology, Faculty <strong>of</strong> Agrobiology and Food Resources,<br />
Slovak University <strong>of</strong> Agriculture, Tr. A. Hlinku 2, 949 76 Nitra, Slovakia e-mail: Lydia.<br />
Jedlovska@uniag.sk<br />
In the last years we studied contents <strong>of</strong> selected fractions <strong>of</strong> sulphur in Slovakia<br />
soils: chloride soluble sulphure (ClSS), sulphate sulphure (SS) and heat soluble sulphure<br />
(HSS). The results we obtained from 41 location, from 52 soil´s pr<strong>of</strong>iles: Haplic<br />
Chernozems (CH), Phaeozems (PH), Haplic Luvisols (LV), Eutric Cambisols (Cm),<br />
Distric Planosols (PL). Sulphur content these sulphur frations we determined in different<br />
layers <strong>of</strong> soil pr<strong>of</strong>iles. The results showed, that the highest amount <strong>of</strong> fractions<br />
<strong>of</strong> sulphur was in top layer (0,0–0,2 m). The highest content chloride soluble sulphure<br />
and heat soluble sulphure was in Phaeozems (ClSS = 947.8 mg kg –1 ; HSS = 433.1<br />
mg kg –1 ), sulphate sulphure was in Haplic Chernozems (SS = 232.3 mg kg –1 ) in top<br />
layer <strong>of</strong> monitored soils. Big differences between accounted values were in the same<br />
soil pr<strong>of</strong>iles in different seasons e.g. Žitavský luh (HSS (spring) = 36.9 mg kg –1 HSS<br />
(autumn) = 183.74 mg kg –1 ).<br />
Decresing content chloride soluble sulphure was in monitoring soil’s types following:<br />
PH < LV < CH < CM < PL, the decresing content sulphate sulphure was CH<br />
< PH < LV < CM < PL and the decresing content heat soluble sulphure was PH < CM<br />
< CM < CH < PL. Obtained results gave us the possibilities to evaluate <strong>of</strong> different<br />
fractions <strong>of</strong> sulphur in soils.
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P93 Factors Influencing the Sorption Behaviour <strong>of</strong><br />
Herbicide Acetochlor in Soils and Sediments<br />
Lenka Zemanová, Edgar Hiller, Zoltán Krascsenits<br />
Comenius University in Bratislava, Faculty <strong>of</strong> Natural Sciences,<br />
Department <strong>of</strong> Geochemistry<br />
Mlynská dolina, 842 15 Bratislava, Slovak Republic<br />
zemanoval@fns.uniba.sk<br />
Sorption and desorption are believed to be the main processes controlling the<br />
movement and persistence <strong>of</strong> organic pollutants in soils. Laboratory study was<br />
conducted to determine the sorption-desorption behaviour <strong>of</strong> acetochlor, herbicide<br />
commonly used in Slovak agriculture. The sorption and desorption were investigated<br />
using the samples <strong>of</strong> 8 surface soils, 1 subsurface soil, 3 bottom sediments and 2<br />
river sediments. According to the results <strong>of</strong> simple regression analysis, organic carbon<br />
content <strong>of</strong> the sorbents was found to be the most important factor influencing<br />
the extent <strong>of</strong> sorption processes. Organic carbon content <strong>of</strong> the soils and sediments<br />
was significantly correlated to K D coefficient (r = 0.774; P < 0.01). Similarly, desorption<br />
<strong>of</strong> acetochlor was inversely proportional to organic carbon content <strong>of</strong> the soils<br />
and sediments used (r = -0.81; P < 0.001). Significant relationship found between<br />
K OC and humic/fulvic acid ratios <strong>of</strong> the sorbents (r = 0.578; P < 0.05) implies, that<br />
the organic matter character and properties may influence the sorption affinity <strong>of</strong><br />
acetochlor to organic components <strong>of</strong> the sorbent. This finding might partly explain<br />
relatively high variability <strong>of</strong> K OC values <strong>of</strong> acetochlor determined in this study (K OC<br />
= 86–399 l.kg -1 ) and reported elsewhere, too.<br />
Keywords: acetochlor, sorption<br />
1.11
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P94 Ecotoxicological Evaluation <strong>of</strong> the Sludges<br />
From Waste Water Treatment Plants<br />
1.11<br />
Helena Zlámalová Gargošová, Lucie Hellingerová,<br />
Milada Vávrová<br />
Institute <strong>of</strong> Chemistry and Technology <strong>of</strong> Environmental Protection, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
zlamalova@fch.vutbr.cz<br />
Sewage sludge from waste water treatment plants can be used as fertilizer only<br />
in case if they don’t show any ecotoxicity. Sewage sludge from different waste water<br />
treatment plants was evaluated by selected tests <strong>of</strong> ecotoxicity with respect to their<br />
intended use.<br />
For this purpose two alternative toxicity tests, Thamnotoxkit FTM on sense organisms<br />
Thamnocephalus platyurus and Daphnotoxkit FTM magna on sense organisms<br />
Daphnia magna were used, and also two phytotests were employed: Sinapis<br />
alba root growth inhibition toxicity test and Allium cepa L root growth inhibition<br />
toxicity test. The values <strong>of</strong> 24hLC50 and 48hLC50 obtained for Thamnocephalus platyurus<br />
and Daphnia magna testing organisms and 72hIC50 values gained for Sinapis<br />
alba and Allium cepa testing plants are the basic data for the ecotoxicological assessment<br />
<strong>of</strong> the sewage sludges and for classification following the Czech legislation.<br />
Keywords: sewage sludges, ecotoxicity tests
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P95 Microwave Desulphurization Of Coal<br />
Ingrid Znamenáčová, Michal Lovás, Silvia Čuvanová,<br />
Štefan Jakabský<br />
Institute <strong>of</strong> Geotechnics, Slovac Academy <strong>of</strong> Sciences,<br />
Watsonova 45, 043 53 Košice, SR<br />
znamenackova@saske.sk<br />
An application <strong>of</strong> microwave energy for sulphur removing from the coal prior<br />
to coal burning is the subject <strong>of</strong> presented article. Accessibility <strong>of</strong> coal to desulphurization<br />
by magnetic separation followed by microwave heating was investigated.<br />
The coal was subjected to magnetic separation followed by treatment in a microwave<br />
oven. Pyritic sulphur content was reduced to 40–45 %.<br />
Desulphurization by the microwaves is closely related to the form <strong>of</strong> sulphur<br />
compound in coal, its chemical structure, as well as the chemical activity <strong>of</strong> the<br />
leaching. Pulverized samples <strong>of</strong> coal were desulphurized by the treatment with<br />
fluid NaOH.<br />
The microwave heating in classical and microwave oven was realised. The<br />
caustic-coal mixture was heated by the microwave irradiation in N 2 atmosphere. A<br />
considerable success was achieved in tests carried out on coal pretreated by heating<br />
with NaOH in the microwave oven. Reduction in total sulphur content was within<br />
25 % and 56 %. The decrease <strong>of</strong> sulphur in coal from Nováky and Cígel was 52–56 %,<br />
from Donbas 35 %, from Handlová 28 %, and from Sokolov 25 %. It can be stated<br />
that the microwave heating pretreatment <strong>of</strong> the feed coal with sodium hydroxide<br />
solution was successful. It was determined a shortening <strong>of</strong> smelting reaction time<br />
at coal desulphurization process carrying out in the mixture with NaOH under application<br />
<strong>of</strong> microwave radiation in comparison with the classical technique <strong>of</strong> desulphurization<br />
in muffle oven.<br />
Keywords: coal, desulphurization, microwave, magnetic<br />
1.11
Section 1 – Environmental Chemistry & Technology<br />
Posters<br />
1-P96 The Biological Activity <strong>of</strong> Tetracyclic Diterpene<br />
Isolated from The Slovak Brown Coal<br />
1.11<br />
Anton Zubrik, Andrea Lauková, Alena Gábelová, Zuzana Valovičová,<br />
Josef Cvačka, Ľudmila Turčániová<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, SK-04353 Košice, Slovak Republic<br />
zubant@saske.sk<br />
This work deals with extraction, identification and isolation <strong>of</strong> biologically<br />
active compound from the Slovak brown coal. Obtained coal extracts were separated<br />
by column chromatography and TLC to several aliphatic fractions. Isolation<br />
and structural elucidation <strong>of</strong> tetracyclic diterpene – 16α(H)-phyllocladane was<br />
performed. The structure <strong>of</strong> isolated tetracyclic hydrocarbon was specified using<br />
GC/MS, NMR, HR-MS. Biological activity <strong>of</strong> 16α(H)-phyllocladane was evaluated<br />
in vitro using the human hepatoma cell line HepG2 and the bacterial strains. Two<br />
endpoints, cell viability and DNA breakage was assessed in phyllocladane-exposed<br />
human cells. Based on the preliminary results, tetracyclic diterpene manifests only<br />
weak cytotoxicity in HepG2 cells. Only ~20% reduction <strong>of</strong> cell viability was detected<br />
at the highest concentration <strong>of</strong> phyllocladane (0.5 mg/ml). A mild but statistically<br />
significant increase <strong>of</strong> DNA damage was found in phyllocladane-exposed HepG2<br />
cells compared with negative control (p
Section 2:<br />
Food Chemistry & Biotechnology<br />
2.1
2.2
Lectures<br />
2.
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
2-L01 Nonsaccharomyces Yeast in Grape Must –<br />
Advantege or Spoilage?<br />
Emília Breierová, Jaroslava Kaňuchová Pátková, Ingrid Vajciková,<br />
Institute <strong>of</strong> Chemistry, SAS,<br />
Dúbravská cesta 9, 845 38 Bratislava, Slovakia<br />
chememi@savba.sk<br />
The fresh grape must consists <strong>of</strong> spontaneous micr<strong>of</strong>lora from 90- 99 % about<br />
yeasts. The most important genus is without doubt Saccharomyces cerevisiae which is<br />
responsible for successive fermentation and good wine quality. Recently the contribution<br />
<strong>of</strong> nonsaccharomyces yeast has been widely discussed as there is not definitive<br />
opinion on their contribution to the wine quality, especially aroma. The genus<br />
<strong>of</strong> Rhodotorula, Sporobolomyces, Pichia, Hansenula, Bretanomyces were evaluated from<br />
the viewpoint <strong>of</strong> their contribution to the wine aroma. The yeasts separately fermented<br />
the grape must and the final product was evaluated sensorialy and analytically.<br />
Some <strong>of</strong> them - Hansenula and Pichia were considered to act positively on the<br />
aroma quality, increasing the fruit and/or coconut aroma by higher production <strong>of</strong><br />
sabinyl and isoamylacetate, resp. γ-nonalactone. Some <strong>of</strong> the apiculate micr<strong>of</strong>lora<br />
– Rhodotorula and Sporobolomyces were evaluated negatively with increased production<br />
<strong>of</strong> 3,4-hexanedione, hexanal, eicosene causing the buttery and waxy odour.<br />
Keywords: wine, aroma, yeast, apiculate micr<strong>of</strong>lora<br />
0<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Lectures<br />
2-L02 Approaches to Minimization <strong>of</strong> Acrylamide<br />
Level in Foods<br />
2.<br />
Zuzana Ciesarová<br />
VÚP Food Research Institute<br />
Priemyselná 4, 824 75 Bratislava, Slovak Republic<br />
ciesarova@vup.sk<br />
High-temperature processing <strong>of</strong> foods results in the formation <strong>of</strong> acrylamide,<br />
a substance which is associated with the increased incidence <strong>of</strong> breast, ovarian, and<br />
endometrial cancer. The presence <strong>of</strong> acrylamide is widespread in many staple foods<br />
because it arises from natural occurred compounds during the reaction <strong>of</strong> amino<br />
acid asparagine with reducing sugars (glucose, fructose) at temperature higher than<br />
120°C in the common and desirable process <strong>of</strong> Maillard reaction. Due to an insistent<br />
appeal <strong>of</strong> JECFA (Joint WHO/FAO Expert Committee on Food Additives) since<br />
2007 for mitigation <strong>of</strong> acrylamide to the level as lowest as possible addressed to the<br />
European authorities and institutions, there is a great challenge to find the effective<br />
ways <strong>of</strong> acrylamide reduction.<br />
The minimization concept <strong>of</strong> acrylamide encompasses several approaches: 1)<br />
an avoidance <strong>of</strong> acrylamide formation by a decline <strong>of</strong> its precursors in raw material;<br />
2) a modification <strong>of</strong> heat treatment conditions; 3) an enhancement <strong>of</strong> acrylamide<br />
removal. The ways which were examined at VUP Food Research Institute in Bratislava<br />
would be overviewed.<br />
Acknowledgement: This work was supported by the Slovak Research and<br />
Development Agency under the contract No. COST-0015-06.<br />
Keywords: acrylamide, minimization
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
2L-03 Solid State Fermentation as a Tool for<br />
Preparation <strong>of</strong> Bioproducts Enriched with<br />
Polyunsaturated Fatty Acids<br />
Milan Čertík, Zuzana Adamechová, Linda Németh<br />
Department <strong>of</strong> Biochemical Technology, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic,<br />
milan.certik@stuba.sk<br />
Polyunsaturated fatty acids (PUFAs) with their unique healthy a dietary properties<br />
have a number <strong>of</strong> uses in biomedical and nutritional areas. Due to inadequacy<br />
<strong>of</strong> their natural sources, new biotechnological approach for PUFA production<br />
based on solid state fermentation has been developed. During the process, selected<br />
filamentous Mucorales fungi effectively transform various agroidustrial materials<br />
to bioproducts enriched with PUFAs, such as gamma-linolenic acid (GLA), dihomogamma-linolenic<br />
acid (DGLA), arachidonic acid (AA) and eicosapentaenoic acid<br />
(EPA). Such natural PUFA-bioproducts may be used as an inexpensive food and<br />
feed supplement and may create new perspectives for the economic competitiveness<br />
and market <strong>of</strong> microbial PUFAs.<br />
Key words: polyunsaturatedc fatty acids, biotechnology<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Lectures<br />
2-L04 Emerging Technologies in Food Analysis<br />
2.<br />
Jana Hajšlová<br />
Institute <strong>of</strong> Chemical Technology Prague, Department <strong>of</strong> Food Chemistry and Analysis,<br />
Technicka 5, 166 28 Prague 6, Czech Republic;<br />
jana.hajslova@vscht.cz<br />
Recent advances in science and technology have enabled the introduction <strong>of</strong><br />
several novel analytical strategies, which are applicable both in food research and<br />
routine laboratory control. Time <strong>of</strong> flight mass spectrometry (TOF MS) represents<br />
one <strong>of</strong> the challenging techniques in this field. The pilot studies listed below illustrate<br />
its potential in analysis <strong>of</strong> various food attributes including safety, compliance to<br />
legislative requirements and authenticity. In addition to instrumental techniques,<br />
bioanalytical procedures are very promising; examples documenting their advantages<br />
will be presented as well.<br />
LC-HRTOF MS in pesticide residue analysis - over 200 analytes determined<br />
within 8´, 3 identification points available; non-target search is possible<br />
GCxGC / HSTOF MS in analysis <strong>of</strong> PAHs in plant oils - detection limits and<br />
other performance characteristics depend on a type <strong>of</strong> oil and way <strong>of</strong> its processing,<br />
validation for each matrix needed<br />
Ambient mass spectrometry employing Direct Analysis in Real Time (DART)<br />
source - pr<strong>of</strong>iling <strong>of</strong> various food commodities by a new non-contact surface sampling<br />
technique allows identification <strong>of</strong> a source <strong>of</strong> their origin<br />
Biosensors - instead <strong>of</strong> quantification <strong>of</strong> individual health promoting/toxic<br />
components, measurement <strong>of</strong> their biological effects provides information on health<br />
risks for consumers<br />
key words: food quality and safety, authenticity, TOF MS, biosensors
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
2L-05 Physiological Regulation <strong>of</strong> Biotechnological<br />
Production <strong>of</strong> Carotenoid Pigments<br />
Vladimíra Hanusová, Martina Čarnecká, Andrea Halienová, Milan Čertík,<br />
Emília Breierová, Ivana Márová<br />
Department <strong>of</strong> Biochemical Technology, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology, Radlinského 9, 812 37 Bratislava, Slovak Republic,<br />
vladka.hanusova@gmail.com<br />
Huge commercial demand for natural carotenoids has focused attention on<br />
developing <strong>of</strong> suitable biotechnological techniques for their production. A range<br />
<strong>of</strong> yeast species utilizing agroindustrial substrates have been tested for carotenoids<br />
formation. Yeast strains <strong>of</strong> Rhodotorula and Sporobolomyces formed β-carotene as<br />
the main pigment together with torulene and torularhodine as minor carotenoids.<br />
In contrast, Phaffia strains accumulated astaxanthin as a principal carotenoid. To<br />
increase the yield <strong>of</strong> these pigments, physiological regulation <strong>of</strong> the fermentation<br />
process has been employed. Molecular changes in yeast cells on genome, proteome<br />
and metabolome level were studied using PFGE, 2D-GE, LC/MS/MS and EPR<br />
techniques. These studies also revealed that activated biosynthesis <strong>of</strong> carotenoids by<br />
yeasts exposed to stress could be in a part explained by their scavenger characters as<br />
a protection against the harmful effect <strong>of</strong> the environment.<br />
Key words: carotene pigments, yeast<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Lectures<br />
2-L06 Enzymatic Saccharide Acetylations<br />
in Water – Comparation <strong>of</strong> Catalysts<br />
2.10<br />
Vladimír Mastihuba, Tatiana Kraková, Mária Mastihubová<br />
Institute <strong>of</strong> Chemistry, Center for Glycomics, Slovak Academy <strong>of</strong> Sciences<br />
Dúbravská cesta 9, SK-845 38 Bratislava, Slovak Republic<br />
chemvrma@savba.sk<br />
Enzymatic esterification <strong>of</strong> various hydroxy compounds is studied for about<br />
40 years. Such reactions are usually performed in reaction systems comprising controlled<br />
amount <strong>of</strong> water to prevent product hydrolysis. We had recently described<br />
rather unique esterase from Trichoderma reesei catalyzing acetylation <strong>of</strong> several<br />
carbohydrates and alcohols in bulk water phase. Our present work explores performance<br />
<strong>of</strong> several enzymes/crude enzyme preparations and proteins (Celluclast,<br />
Ultraflo, lipases from Candida antarctica, Candida rugosa, Aspergillus niger and<br />
Thermomyces lanuginosus, bovine serum albumin) in acetylations <strong>of</strong> glucose and<br />
alpha metyl glucoside, comparing product yields and position selectivity <strong>of</strong> esterification.<br />
According to obtained results, Celluclast, a cellulase preparation from<br />
T. reesei comprising acetyl esterase, seems to be the best catalyst for this reaction<br />
according to its selectivity, product yields, availability and price.<br />
Keywords: biocatalysis, acetylations in water
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
2-L07 Preparation <strong>of</strong> Bio-Diesel from Tall Oil<br />
Radoslav Mikulášik, Ján Cvengroš, Viktor Milata, Martin Polovka,<br />
Svetozár Katuščák, Igor Šurina<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava, Slovakia<br />
radoslav.mikulasik@stuba.sk<br />
This paper concerns the preparation <strong>of</strong> bio-diesel from tall oil. It is known that<br />
tall oil contains substituted fatty and resin acids, sterols and other substances, but<br />
only the fraction <strong>of</strong> fatty acids can be used as bio-fuels. Therefore is needed suitable<br />
method for separation <strong>of</strong> fatty acids from other components <strong>of</strong> tall oil.<br />
There are two possibilities: (1) vacuum distillation <strong>of</strong> tall oil, followed by the<br />
esterification <strong>of</strong> fatty acids fraction to methyl esters, (2) esterification <strong>of</strong> tall oil to<br />
methyl esters, followed by vacuum distillation and isolation <strong>of</strong> fraction <strong>of</strong> fatty acids<br />
methyl esters. Both mentioned methods were compared in this work.<br />
Tall oil was prepared from feedstock (tall soap) by acidification with sulphuric<br />
acid. Fuel properties <strong>of</strong> prepared bio-diesel were tested in accredited laboratory. The<br />
prepared bio-fuel from tall oil accomplishes all parameters <strong>of</strong> EN 14214 except the<br />
content <strong>of</strong> sulphur.<br />
Keywords: bio-diesel, methyl ester, fatty acids, tall oil, tall soap, esterification,<br />
vacuum distillation, GC-MS<br />
2.11
Section 2 – Food Chemistry & Biotechnology<br />
Lectures<br />
2-L08 Artificial Neural Networks in Food Analysis<br />
2.12<br />
Ján Mocák, Viera Mrázová, Dáša Kružlicová, Filip Kraic<br />
Department <strong>of</strong> Chemistry<br />
University <strong>of</strong> Ss. Cyril & Methodius, SK-91701 Trnava, Slovakia.<br />
jan.mocak@ucm.sk<br />
Artificial neural networks (ANN) are used more and more frequently in chemistry.<br />
They have been applied for various purposes: optimisation, quantification <strong>of</strong><br />
unresolved peaks, estimation <strong>of</strong> peak parameters, estimation <strong>of</strong> model parameters,<br />
etc. An important application area <strong>of</strong> the ANN in food chemistry concerns sample<br />
characterization and classification.<br />
The use <strong>of</strong> the ANN for data and knowledge processing is characterized by<br />
analogy with biological neurons. The ANN consists <strong>of</strong> neurons sorted in an input<br />
layer, one or more hidden layer(s) and an output layer. The input neurons accept<br />
the input data characteristic for each observation, the output neurons provide predicted<br />
value or pattern <strong>of</strong> the studied objects. The neurons <strong>of</strong> two adjacent layers are<br />
mutually connected and the importance <strong>of</strong> each connection is expressed by weights.<br />
During the training process the weights are corrected so as to produce output values<br />
as close as possible to the desired (or target) values. After completing the training<br />
process the network will give predictions for categorization <strong>of</strong> new objects, not included<br />
in the training set.<br />
In this work we have studied the possibility <strong>of</strong> the ANN application to the classification<br />
<strong>of</strong> (1) Slovak varietal wines using different classification criteria (variety,<br />
producer/location, the year <strong>of</strong> production), (2) drinkable waters (as the tap-, mineral-,<br />
mineral carbonated-, spring-, and spring carbonated water).<br />
Acknowledgement: The support <strong>of</strong> this work by the grants VEGA 1/3584/06<br />
and APVV-0057-06 is highly acknowledged.<br />
Keywords: artificial neural networks, food classification
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
2-L09 Detection <strong>of</strong> Spices‘ Irradiation by Modern<br />
Spectroscopic Techniques<br />
Martin Polovka, Milan Suhaj<br />
Department <strong>of</strong> Chemistry and Food Analysis, VÚP Food Research Institute<br />
Priemyselná 4, P. O. Box 25, SK-824 75 Bratislava, Slovak Republic<br />
polovka@vup.sk<br />
Different methods have been used to reduce the microbial contamination in<br />
spices, from which γ-irradiation is one <strong>of</strong> the most effective. In order to eliminate<br />
any health risks for consumers, exact studies <strong>of</strong> γ-irradiation treatment and its impact<br />
on food safety is <strong>of</strong> high importance. In this contribution, the changes induced<br />
in ground caraway (Carum carvi, L.) and bay leaves (Laurus nobilis, L.), γ-irradiated<br />
using 60 Co source at doses from 5 up to 30 kGy were studied using EPR spectroscopy.<br />
The influence <strong>of</strong> absorbed dose on the character <strong>of</strong> formed paramagnetic structures,<br />
as well as their and life-time were also investigated. In addition, the influence<br />
<strong>of</strong> γ-irradiation on antioxidant activity <strong>of</strong> spices’ alcoholic extracts and its alterations<br />
upon the storage was investigated by both EPR and UV-VIS spectroscopy, applying<br />
several common assays (e.g, 2,2-diphenyl-1-picrylhydrazyl ( • DPPH) free radical,<br />
2,2’-azino-bis-(3-ethylbenzthiazoline-6-sulfonic acid) cation radical (ABTS •+ , determination<br />
<strong>of</strong> ferric ions reducing power (FRP), total phenolic content (TPC) and thiobarbituric<br />
acid reactive substances content (TBARS).<br />
Keywords: γ-irradiation, spices, free radicals, antioxidant properties<br />
2.1
Section 2 – Food Chemistry & Biotechnology<br />
Lectures<br />
2-L10 Application Potential <strong>of</strong> Novel GC-HT TOF MS<br />
(TRU TOF) System in Food and Environmental<br />
Analysis<br />
2.1<br />
Jakub Schurek, Jana Pulkrabova, Jana Hajslova<br />
Institute<strong>of</strong> Chemical Technology in Prague<br />
Technická 5, Praha 6, 166 28<br />
jakub.schurek@vscht.cz<br />
In last years, analytical approaches employing gas chromatography coupled to<br />
time-<strong>of</strong>-flight mass spectrometry (GC-TOF MS) proved to be a useful tool in assessment<br />
<strong>of</strong> quality and safety <strong>of</strong> food, beverages and water. But only recently, at the end<br />
<strong>of</strong> 2007, new TOF MS detector specialy designed for high-throughput <strong>of</strong> samples,<br />
has been introduced.<br />
In this work the evaluations <strong>of</strong> such instrumentation is performed in analysis <strong>of</strong><br />
pesticides, pharmaceuticals and polybrominated compounds. The ionization mode<br />
(EI, CI) and GC-MS settings has been optimized in order to obtaine fast and reliable<br />
analytical methods for routine control <strong>of</strong> purified extracts <strong>of</strong> different food-stuffs<br />
and enviro-matrices. Appraisal <strong>of</strong> mentioned technique with respect to the cost and<br />
time demands was also done.<br />
Keywords: high throughput gas chromatography time-<strong>of</strong>-flight mass<br />
spectrometry (GC-HT TOF MS)
2-L11 C<strong>of</strong>ffe as a Source <strong>of</strong> Antioxidants<br />
(An EPR Study)<br />
Andrej Staško, Vlasta Brezová and Anna Šlebodová<br />
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
Institute <strong>of</strong> Physical Chemistry and Chemical Physics,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology in Bratislava,<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
andrej.stasko@stuba.sk<br />
Antioxidant abilities <strong>of</strong> commercially available ground and instant c<strong>of</strong>fees<br />
brews were investigated using as oxidants semi-stable radicals as ABTS•+ , DPPH,<br />
•– • TEMPOL, and also more reactive radicals (SO and OH) formed in the thermally<br />
4<br />
decomposed K 2 S 2 O 8 . Total phenolics content was determined. Kinetic behaviour <strong>of</strong><br />
caffeine and caffeic acid was investigated employing as oxidant • OH radicals photochemically<br />
generated from H 2 O 2 .<br />
The antioxidant capacity expressed in TEAC is by the instant c<strong>of</strong>fees with 0.71<br />
± 0.07 mmol g –1 about 3-4 times higher than by the ground c<strong>of</strong>fees 0.22 ± 0.02 mmol g –<br />
1 . Only minor differences (not exceeding ± 15 %) are evident between the samples in<br />
the group <strong>of</strong> instant or ground c<strong>of</strong>fees. Phenolics content correlates well with TEAC<br />
values as found with DPPH and ABTS •+ oxidants investigating the ground c<strong>of</strong>fees.<br />
Only limited mutual correlations are evident between other investigated variables<br />
documented with correlation matrix.<br />
Caffeic acid (CA) is a very active antioxidant in all investigated systems, whereas<br />
caffeine (CF) is inert e.g. to ABTS •+ and DPPH. But, both are effective in the scavenging<br />
<strong>of</strong> • OH radicals with bimolecular rate constants k CF = 2.6×10 9 M –1 s –1 and k CA =<br />
9.4×10 9 M –1 s –1 .<br />
Keywords: ground and instant c<strong>of</strong>fees, antioxidants, EPR<br />
2.1
Section 2 – Food Chemistry & Biotechnology<br />
Lectures<br />
2-L12 Interactions Between Organic Food<br />
Contaminants and Plastic Packaging Materials<br />
2.1<br />
Peter Šimko, Božena Skláršová, Peter Šimon, B. Drobná<br />
Food Research Institute,<br />
Priemyselna 4, P. O. Box 25, 824 75 Bratislava<br />
Interactions <strong>of</strong> two groups <strong>of</strong> hazardous contaminants - polycyclic aromatic<br />
hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs) with plastic packaging<br />
materials were studied.<br />
Sunflower and rapeseed oils were spiked with benzo[a]pyrene (BaP). Then, the<br />
oils were filled into polyethylene terephtalate (PET) and low density polyethylene<br />
(LDPE) cylindrical shape receptacles and BaP concentrations were followed within<br />
49 h using HPLC with fluorescence detection. It was found that the concentration in<br />
the oils in contact with PET were decreased considerably due to sorption <strong>of</strong> BaP onto<br />
PET, while no decrease in concentration <strong>of</strong> BaP was observed in the oils in contact<br />
with PE. It was possible to describe the rate <strong>of</strong> BaP removal by kinetic equation and<br />
calculate diffusion coefficients. The results showed that PET is able to decrease BaP<br />
concentration in both vegetable oils and the decrease is due to monolayer sorption<br />
processes taking place on the PET surface. As found, LDPE is inappropriate material<br />
for BaP removal from sunflower and rapeseed oils, because BaP concentration in the<br />
oils remained at a constant level during the whole experiment.<br />
Then the rapeseed oil was spiked with 6 indicator PCBs congeners and filled<br />
into PET cylindrical shape receptacles. PCBs concentrations were followed within<br />
48 h using GC/ECD. However, in this case we did not detect a remarkable decrease<br />
<strong>of</strong> PCBs concentration. As found, PET is inappropriate material for PCBs removal<br />
from rapeseed oil.<br />
Keywords: polycyclic aromatic hydrocarbons, polychlorinated biphenyls
Section 1 – Environmental Chemistry & Technology<br />
Lectures<br />
2-L13 Analysis <strong>of</strong> Fusarium Mycotoxins, Critical<br />
Assessment<br />
Zachariasova Milena, Hajslova Jana, Poustka Jan, Kostelanska Marta,<br />
Krplova Alexandra, Vaclavik Lukas<br />
Institute <strong>of</strong> Chemical Technology in Prague<br />
Technicka 3, Prague, 166 28<br />
milena.zachariasova@vscht.cz<br />
Fusarium toxins, secondary metabolites produced by Fusarium fungi, occur<br />
worldwide as natural contaminants in cereals, including wheat, barley, maize and<br />
oats. With regard to health risk for consumers, their presence in cereals and processed<br />
products has to be monitored.<br />
Gas chromatography coupled to either electron capture or mass spectrometric<br />
detector used to be frequently employed method in mycotoxins analysis. This approach<br />
requires intensive sample clean-up and time consuming derivatization step,<br />
therefore, in recent years, LC–MS/MS has become a popular tool in Fusarium toxins<br />
control (direct target analysis <strong>of</strong> crude or purified extract is feasible). For non target<br />
screening, the use <strong>of</strong> LC coupled to high-resolution time-<strong>of</strong>-flight MS (HRTOFMS)<br />
is a challenging option. Based on the accurate mass measurement, identification<br />
<strong>of</strong> various “masked” mycotoxins such as deoxynivalenol-3-glucoside (DON-3-Glc)<br />
and other conjugates is possible. As shown in our recent studies, these compounds<br />
cross-react in enzyme linked immunosorbent assay (ELISA). While poor trueness <strong>of</strong><br />
data due to DON-conjugates cross-reactivity may pose a problem, this phenomenon<br />
can be employed for their pre-concentration prior to instrumental analysis.<br />
Keywords: Fusarium toxins, LC-MS/MS, LC-TOF-MS, ELISA<br />
2.1
2.1
Posters<br />
2.1
2.20
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P001 Determination <strong>of</strong> β-Carotene in the Gelatin<br />
Capsule<br />
B. Altangerel, Z. Kolajova, D. Kramarova, O. Rop, I. Hoza<br />
Department <strong>of</strong> Food Engineering, Faculty <strong>of</strong> Technology,<br />
TBU in Zlin, Czech Republic<br />
kramarova@ft.utb.cz<br />
A reversed-phase high-performance liquid-chromatographic method for the<br />
determination <strong>of</strong> β-carotene is described. This method was applied to β-carotene<br />
measurement in gelatin capsule. Filling from gelatin capsule was dissolved into 10<br />
ml <strong>of</strong> deionized water and extracted using 10 ml <strong>of</strong> n-Hexan solution. After evaporation,<br />
the residue was dissolved in 10 ml <strong>of</strong> ethanol and was filtered trough 0.45<br />
μm filter (Nylon) before injected into the column. HPLC separation was performed<br />
using ESA HPLC with ECD detection (Coulochem III) which is equipped with analytical<br />
column Supercosil LC18-DB (250 x 4.6mm, particle size 5μm). Separation<br />
took place at 30°C, flow rate <strong>of</strong> mobile phase (methanol: acetonitrile: phosphoric<br />
acid) was 1.0 ml.min-1. Potentials <strong>of</strong> the cells for detector were 500 and 600mV.<br />
The result <strong>of</strong> this study shows that the gelatin capsule vitamin supplement analyzed<br />
here contains 5.83± 0.02 mg <strong>of</strong> β-carotene, which is different from the labelled<br />
value <strong>of</strong> 6.00 mg. However, the significance <strong>of</strong> the difference was not ascertained.<br />
The validation <strong>of</strong> the analytical method used in this study was performed using<br />
standard addition technique. Therefore, it can be concluded that HPLC with ECD<br />
method have shown to be acceptable for determination and quantification <strong>of</strong> β-carotene<br />
in a gelatin capsule vitamin supplements.<br />
Keywords: gelatin capsule, β-carotene, HPLC, Coulochem III, ECD<br />
2.21
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P002 Determination <strong>of</strong> β-Carotene in Tomato by<br />
High Performance Liquid Chromatography with<br />
Electrochemical Detector<br />
2.22<br />
B. Altangerel, P. Vojtiskova, D. Kramarova, , O. Rop, I. Hoza<br />
Department <strong>of</strong> Food Engineering, Faculty <strong>of</strong> Technology, TBU in Zlin, Czech Republic E-mail:<br />
kramarova@ft.utb.cz<br />
This study was conducted to investigate the antioxidant vitamin (β-caroten)<br />
content <strong>of</strong> one <strong>of</strong> the most important vegetables, tomato, using modern analytical<br />
techniques. High performance liquid chromatography (HPLC) is the most commonly<br />
used method for the separation, quantitation, and identification <strong>of</strong> carotenoids<br />
found in vegetables samples.<br />
Initially a 10 g sample <strong>of</strong> tomato was placed in a 50 ml flask and mixed with 26<br />
ml <strong>of</strong> extraction solvent (acetone: hexane 50:50v/v). After filtration through Filtrak<br />
No.390 filter paper. The filtrate was poured into a 250 ml flask and evaporated under<br />
vacuum at 30 o C and residues were redissolved in 5 ml <strong>of</strong> ethanol. The solution was<br />
filtrated through a 0,45 μm nylon filter and 20 μl was injected into HPLC system.<br />
HPLC separation was performed using ESA HPLC with ECD detection (Coulochem<br />
III) which is equipped with analytical column Supercosil LC18-DB (250 x 4.6mm,<br />
5μm) with methanol: acetonitrile: phosphoric acid (70:29.9:0.5 v/v/v) as mobile<br />
phase in a isocratic elution.<br />
The first group sample was immediately extracted with extraction solution<br />
(hexan:ethanol, 50:50 v/v) after purchased from supermarket. The second group<br />
sample was stored two weeks in a refrigerator before extraction. The higher value <strong>of</strong><br />
β-carotene (1,197 mg/100g -1 ) was obtained with the first sample. The values obtained<br />
in this study are very close to those reported by Olives Barba et al. who reported a<br />
range <strong>of</strong> 0.6-1.2 mg per 100 g for β-carotene in 4 tomato varieties. We presumed that<br />
the content <strong>of</strong> β-carotene (0.024mg/100g -1 ) was reduced in second sample during<br />
storage period.<br />
European epidemiological studies revealed 6-10 mg β-carotene as the recommended<br />
daily intake to provide good health and a reduction in risk <strong>of</strong> diseases<br />
(Lachance, 1998; National Research Council, 1989). Accordingly, one serving 100 g<br />
tested tomato contributes 11.97-19.95% <strong>of</strong> the recommended daily intake <strong>of</strong> β-carotene.<br />
Keywords: β-carotene, tomato, HPLC, Coulochem III, ECD
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P003 Protective Effect <strong>of</strong> Tomatoes Powder<br />
in Oxidative Stress Induced by Thyroid<br />
Disfunctions<br />
Sanda Andrei, Adela Joanta, Adela Pintea, M. Merca Sarlea<br />
University <strong>of</strong> Agricultural Sciences and Veterinary Medicine Cluj-Napoca<br />
Manastur, 3-5, 400372,Cluj-Napoca, Romania<br />
sandrei@usamvcluj.ro<br />
Accumulating evidence has suggested that the hyperthyroidism is associated<br />
with increases in radical oxygen species (ROS) production and lipid peroxidation<br />
products in some tissues <strong>of</strong> rats.<br />
In the present work, effects <strong>of</strong> the ingestion <strong>of</strong> tomatoes powder, rich in lycopene,<br />
on the activities <strong>of</strong> antioxidant enzymes (superoxid dismutase, catalase and glutathion<br />
peroxidase), the oxidation <strong>of</strong> lipids and on fatty acids (FA) composition on<br />
liver, thyroid and myocardium were examined in rats intraperitonial injected with<br />
L-thyroxin. Enzyme activities were determined from protein extract obtained from<br />
tissues. Enzymes activities and total protein content was assayed using the photometric<br />
methods. Lipid peroxides level was determined measuring TBARS test. The<br />
fatty acids analysis was made on total lipids extracts using gas chromatography<br />
coupled with mass spectrometry (MS).<br />
Tomatoes powder supplementation reduces the burden <strong>of</strong> oxidative stress in<br />
hyperthyroidism. Administration <strong>of</strong> this powder rich in lycopene in hyperthyroid<br />
rats led to reduction in lipid peroxidation and susceptibility to oxidative stress and<br />
to increase in antioxidant level. These diet determined also an increase <strong>of</strong> unsaturated<br />
/ saturated fatty acids ratio in all analyzed tissues. L/thyroxin administration<br />
determined the modification <strong>of</strong> FA content in thyroid gland, in liver and also in<br />
myocardium.<br />
Keywords: antioxidants, hyperthyroidism<br />
2.2
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P004 Thermophilic Bacteria Application to Whey<br />
Biodegradation<br />
2.2<br />
Libor Babák<br />
Institute <strong>of</strong> Food Science and Biotechnology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 61200 Brno, Czech Republic<br />
babak@fch.vutbr.cz<br />
A biodegradation possibility <strong>of</strong> the organic waste compounds (summarized<br />
like chemical oxygen demand – COD) by means <strong>of</strong> the mixed thermophilic aerobic<br />
bacteria culture (sludge <strong>of</strong> wastewater treatment Bystřice pod Hostýnem) was studied.<br />
The whey from Pribina Přibyslav company is the tested waste medium.<br />
In this work a batch system was used. The cultivations were practised in the<br />
laboratory fermentor BIOSTAT B ( B. Braun Biotech) at 60 ºC. Selected bioengineering<br />
characteristics (specific growth rate, biomass productivity, COD elimination<br />
and volume ogygen transfer coefficient) were determined persuant to the experimental<br />
data. It was achieved 62 ± 4 % total COD reduction after two main growth<br />
phases.<br />
Keywords: whey, biodegradation, thermophilic
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P005 Growth Curves <strong>of</strong> Mixed Thermophilic Bacteria<br />
Libor Babák, Radka Burdychová, Vlastimil Dohnal<br />
Institute <strong>of</strong> Food Science and Biotechnology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 61200 Brno, Czech Republic<br />
babak@fch.vutbr.cz<br />
The growth <strong>of</strong> mixed thermophilic bacteria culture (sludge <strong>of</strong> wastewater treatment<br />
Bystřice pod Hostýnem) was studied. Two different cultivation systems were<br />
used for monitoring and comparison <strong>of</strong> growth characteristics <strong>of</strong> above mentioned<br />
thermophilic culture. The first system consisted <strong>of</strong> batch cultivations in cuvettes<br />
with very little volumes (10 -5 L) <strong>of</strong> cultivation media at 60 ºC. Samples were taken by<br />
autosampler in periodic intervals (24,4 min). Bacteria growth was there observed by<br />
means <strong>of</strong> HPLC with UV detection (600 nm). The second system was composed <strong>of</strong><br />
batch cultivations in the laboratory fermentor BIOSTAT B ( B. Braun Biotech) at 60<br />
ºC, too. The system was aerated (10 L.min -1 ) and stired by multiple turbo-stirrer (250<br />
min -1 ). Samples were taken every two hours. Biomass concentration was detected by<br />
turbidimeter. Both cultivation ways were practised in several substrates with different<br />
C-sources (glucose, sacharose, lactose, maltose). Obtained growth curves were<br />
comparised. Furthermore, the biomass productivity values were determined.<br />
Keywords: thermophilic, growth curve, HPLC/UV, bioreactor<br />
2.2
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P006 Monitoring <strong>of</strong> Acrylamide Levels Using LC-MS/<br />
MS: Malts and Beers<br />
2.2<br />
Veronika Bartackova, Lukas Vaclavik, Katerina Riddellova,<br />
Jana Hajslova<br />
Institute <strong>of</strong> Chemical Technology Prague, Department <strong>of</strong> Food Chemistry and Analysis<br />
Technicka 3, 166 28 Prague 6 – Dejvice, Czech Republic<br />
veronika.bartackova@vscht.cz<br />
Alike many others heat processed food products prepared from raw materials<br />
rich in starch/reducing sugars, malts may contain acrylamide, a toxic processing<br />
contaminant originated from precursors contained in barley. Besides <strong>of</strong> other factors,<br />
acrylamide levels depend on the temperature and the time employed for treatment<br />
<strong>of</strong> respective products. In our study, various types <strong>of</strong> malts, commonly used as<br />
additives (colorants, aroma donors etc.) in bakery and/or in brewing industry were<br />
analysed. In this study, we focused on the assessement <strong>of</strong> transfer <strong>of</strong> acrylamide into<br />
the beer. For this purpose, a new analytical strategy enabling direct determination <strong>of</strong><br />
acrylamide in this matrix has been developed. The procedure consists from cleanup<br />
step employing solid-phase extraction (SPE) followed by liquid chromatography<br />
coupled to tandem mass spectrometry with a triple quadrupole mass analyser<br />
(LC–MS/MS). Isotope dilution technique employing 13 C 3 -acrylamide as an internal<br />
standard was used for quantification <strong>of</strong> native acrylamide. A wide range <strong>of</strong> beers<br />
obtained at Czech markets were examined within this monitoring study.<br />
Keywords: acrylamide, malt, beer, LC–MS/MS
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P007 Determination <strong>of</strong> Polycyclic Aromatic<br />
Hydrocarbons in Czech Honeys<br />
Petra Batelková, Ivana Borkovcová,<br />
Klára Bartáková, Lenka Vorlová<br />
University <strong>of</strong> Veterinary and Pharmaceutical Science Brno<br />
Palackého 1/3, 612 42 Brno<br />
pbatelkova@vfu.cz<br />
Polycyclic aromatic hydrocarbons (PAHs) are environmental pollutants formed<br />
during the incomplete combustion <strong>of</strong> carbonaceous materials at high temperature.<br />
They have toxic, carcinogenic and mutagenic effects.<br />
The aim <strong>of</strong> this study was to determinate the content <strong>of</strong> PAHs in Czech honeys.<br />
The samples <strong>of</strong> honey were obtained both directly from bee-keepers and shops. 15<br />
PAHs have been estimated in 20 samples <strong>of</strong> honey by means <strong>of</strong> reverse phase HPLC<br />
with gradient elution and fluorescence detection. Target analytes were isolated<br />
from samples into organic solvents either from their aqeous solutions (liquid/liquid<br />
extraction or solid phase extraction) or directly with adition <strong>of</strong> anhydrous sodium<br />
sulphate by ultrasonic extraction combined with mixing at 10 000 rpm in organic<br />
solvent. Concentrations <strong>of</strong> individual PAHs found in honey samples were low, they<br />
were in range 0,1 – 10 μg.kg -1 .<br />
Keywords: honey, polycyclic aromatic hydrocarbons, HPLC<br />
2.2
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P008 Quantitative Determination <strong>of</strong> Sulfonamide<br />
Residues in Chicken Meat by a New Solid Phase<br />
Extraction and<br />
HPLC-UV for Detection<br />
2.2<br />
Constantin Bele, Adela Pintea, Francisc Dulf, Dan Lupu,<br />
Alexandru R. Biris<br />
University <strong>of</strong> Agricultural Science and Veterinary Medicine ,<br />
R- 400372 Cluj-Napoca , Romania<br />
cbele2002@yahoo.com<br />
In this study, an analytical method for the simultaneous determination <strong>of</strong> seven<br />
<strong>of</strong> the most used sulfonamides in chicken meat was developed. Sample cleanup<br />
and pre-concentration <strong>of</strong> analytical compounds was carried out by employing<br />
SPE using multiwalled carbon nanotubes and alumina as solid phase adsorbents<br />
followed by high performance liquid chromatography with UV detector. The HPLC<br />
determination was performed using a RP C 18 column and sulfonamides were detected<br />
at 266 nm.The newly developed sample pre-treatment procedure effectively<br />
removed the potential matrix interferences from endogenous compounds <strong>of</strong> chicken<br />
meat. Under the optimal procedures , the detection limits <strong>of</strong> sulfonamides were in<br />
the range <strong>of</strong> 24–42ng L -1 . Average recoveries <strong>of</strong> analytes from spiked meat ranging<br />
from 65.6 to 80.4 % were determined.<br />
Keywords: Solid phase extraction; Multi-walled carbon nanotubes;<br />
Sulfonamides; HPLC
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P009 Monitoring <strong>of</strong> Ferulic Acid Content During the<br />
Malt Production<br />
Sylvie Běláková, Renata Mikulíková, Zdeněk Svoboda,<br />
Simona Macuchová<br />
Research Institute <strong>of</strong> Brewing and Malting<br />
Mostecká 7 614 00 Brno Czech Republic<br />
belakova@brno.beerresearch.cz<br />
Ferulic acid is a natural antioxidant that belongs to low-molecular weight phenol<br />
compounds.<br />
Its antioxidative activity plays an important role in barley and biochemical process<br />
<strong>of</strong> beer production. Nowadays, causes <strong>of</strong> wort turbidity have been investigated<br />
and relationships between wort turbidity, filterability and beer quality have been<br />
studied. Information on ferulic acid will help clarify the causes <strong>of</strong> turbidity. The aim<br />
is to find out varietal and technological dependence <strong>of</strong> the intensity <strong>of</strong> enzymatic<br />
cleavage <strong>of</strong> bonds <strong>of</strong> ferulic acid with proteins and polysaccharides in cell walls during<br />
barley germination and the effect <strong>of</strong> this process on the rate and quality <strong>of</strong> wort<br />
running-<strong>of</strong>f and beer filterability.<br />
The optimized method <strong>of</strong> ultra performance liquid chromatography (UPLC)<br />
with UV detection was used for the determination <strong>of</strong> ferulic acid in barley, malt and<br />
wort.<br />
Keywords: UPLC, ferulic acid, malt, beer<br />
2.2
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P010 Monitoring <strong>of</strong> Sensorially Active Sulphur<br />
Compounds in Malt and Beer<br />
2. 0<br />
Sylvie Běláková, Renata Mikulíková, Zdeněk Svoboda, ,<br />
Simona Macuchová<br />
Research Institute <strong>of</strong> Brewing and Malting<br />
Mostecká 7 614 00 Brno Czech Republic<br />
mikulikova@brno.beerresearch.cz<br />
Recently, increased attention has been devoted to sensorially active substances<br />
affecting beer quality. Heterocyclic and sulphur containing compounds, some <strong>of</strong><br />
them with high sensorially activity even in extremely low concentrations, play an<br />
important role. Trace amounts <strong>of</strong> these compounds commonly occurring in foodstuffs<br />
contribute to their flavor and their effect can be generally assessed as favorable.<br />
However, in malt or beer this is true only to a limited extent and their presence<br />
is assessed mostly unfavorably.<br />
The SPME/GC/FPD method was used for following the selected sulphur sensorially<br />
active substances in beer<br />
Keywords: sulphur compounds, SPME, GC, FPD, malt, beer
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P011 Content <strong>of</strong> Strobilurin Fungicides in Barley<br />
Malt and Beer<br />
Sylvie Běláková, Renata Mikulíková, Zdeněk Svoboda,<br />
Simona Macuchová<br />
Research Institute <strong>of</strong> Brewing and Malting<br />
Mostecká 7 614 00 Brno Czech Republic<br />
mikulikova@brno.beerresearch.cz<br />
Strobilurin pesticides represent an important group <strong>of</strong> agricultural fungicides<br />
with a new efficiency mechanism.<br />
Strobilurins chemically belong to metoxyacrylates (e.g. azoxystrobin and<br />
picoxystrobin), metoxycarbamates (pyraclostrobin), oximino acetates (kresoxim<br />
– methyl, trifloxystrobin), ozimino-acetamides (dimoxystrobin, etc.) and dihydrodioxazinons<br />
(fluoxastrobin). Their characters, including spectrum efficiency, are<br />
very variable. In plant protection, they act mainly preventively but also curatively<br />
and some even have eradicative effects. All <strong>of</strong> them act in contact, some <strong>of</strong> them in<br />
depth or systemically and their efficacy is very wide. On the other hand, howver,<br />
they can pose a risk to human health and potentially endanger the environment.<br />
Azoxystrobin (Amistar), picoxystrobin (Acanto), trifloxystrobin (Sfera 267.5<br />
EC) and kresoxim-methyl (Juwel, Juwel Top) are used against fungal diseases <strong>of</strong><br />
barley. Azoxystrobin (Ortiva) has been registered against fungal diseases <strong>of</strong> hop.<br />
With respect to the increased use <strong>of</strong> strobilurin for barley and hop protection<br />
and due to their stability in a plant, it was necessary to introduce monitoring <strong>of</strong> strobilurin<br />
residues in barley, malt and beer. Analytical determination <strong>of</strong> the selected<br />
strobilurin fungicides is performed with the GC/MSD method.<br />
Keywords: strobilurins, pesticides, GC/MS, malt, beer<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P012 The Effect <strong>of</strong> Fermentation Conditions on the<br />
Yeast Aroma Pr<strong>of</strong>ile<br />
2. 2<br />
Emília Breierová, Kornélia Nemcová, Jaroslava Kaňuchová Pátková,<br />
Ingrid Vajciková<br />
Institute <strong>of</strong> Chemistry, SAS,<br />
Dúbravská cesta 9, 845 38 Bratislava, Slovakia<br />
chememi@savba.sk<br />
Several yeast strains <strong>of</strong> Saccharomyces cerevisiae, Rhodotorula mucilaginosa, Pichia<br />
anomala, Pichia membran<strong>of</strong>aciens, Sporobolomyces pararoseus, Bretanomyces were studied<br />
for their aroma compounds production under various conditions –temperature,<br />
medium composition, microaerobic/anaerobic conditions. All these conditions significantly<br />
affected the aroma production by all <strong>of</strong> the yeasts strains. Typical aroma<br />
compounds for each genus were recognised: valericaldehyd and γ-nonalaktón for<br />
S. cerevisiae, cyklopentanol, alfacyklogeraniol for Rhodotorula mucilaginosa, sabinylacetate,<br />
3,4-hexandion and eicosane for Sporobolomyces. There were significant<br />
differences also between yeast strains from the same genus. S. cerevisiae A has produced<br />
caproic aldehdyd, trans-pinocamfón, dodecanal, 5-methyl3-heptanón, izomenthylacetát,<br />
but S. cerevisiae strain B has not produced any <strong>of</strong> these compounds.<br />
Rhodotorula A has produced higher amounts <strong>of</strong> 2,3-butandiolu, but has not produced<br />
neither izopentylformiát nor 3,4-hexandion, which has strain Rhodotorula B<br />
produced.<br />
Keywords: aroma, yeast,
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P013 Biogenic Amines Reduction by Probiotic L. casei<br />
During Ripening <strong>of</strong> Fermented Sausages<br />
Radka Burdychová, Vlastimil Dohnal, Petra H<strong>of</strong>erková, Pavla Sládková<br />
Mendel University <strong>of</strong> Agriculture and Forestry in Brno<br />
Zemedelska 1, 613 00 Brno, Czech Republic<br />
burdycho@node.mendelu.cz<br />
The aim <strong>of</strong> this work was to study the effect <strong>of</strong> probiotic bacteria L. casei and<br />
the mixture <strong>of</strong> two different starter cultures (1 – Staphylococcus carnosus, Lactobacillus<br />
curvatus; 2 – Pediococcus acidilactici) on biogenic amine formation during fermentation<br />
and ripening <strong>of</strong> typical Czech fermented sausages. Determination <strong>of</strong> tryptamine,<br />
2 – fenyletylamine, kadaverine, histamine, tyramine, spermidine and spermine<br />
was carried out using HPLC with UV detection. Other parameters like pH, water<br />
activity, weight loss, total counts <strong>of</strong> microorganisms, LAB and counts <strong>of</strong> probiotic<br />
L. casei were determined. In batches with probiotic L. casei were significantly lower<br />
concentration <strong>of</strong> putrescine, kadaverine and tyramine than in two control batches<br />
without L. casei. Mixtures <strong>of</strong> starter and probiotic bacteria decreased pH quickly<br />
which supports the growth <strong>of</strong> lactic acid bacteria and inhibited the growth <strong>of</strong> contaminant<br />
microorganisms in raw material. L. casei was detected at concentration <strong>of</strong><br />
10 6 CFU/g in both testing batches after three days <strong>of</strong> sausages production and stay<br />
at this level during the whole fermentation and ripening period.<br />
Keywords: biogenic amines, L. casei, HPLC, probiotic<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P014 Testing <strong>of</strong> Different Sacharomyces Species for the<br />
Ability to Sorb DeoxynivAlenol<br />
2.<br />
Radka Burdychová<br />
Mendel University <strong>of</strong> Agriculture and Forestry in Brno<br />
Zemedelska 1, 613 00 Brno, Czech Republic<br />
burdycho@node.mendelu.cz<br />
Deoxynivalenol is the most prevalent mycotoxin produced by Fusarium spp.<br />
which frequently contaminates cereal crops. There are several studies describing<br />
that cell walls <strong>of</strong> yeasts and bacteria are able to comlex with mycotoxins and limit<br />
their bioavailability in the digestive tract <strong>of</strong> human and animals. The aim <strong>of</strong> this study<br />
was testing <strong>of</strong> ability <strong>of</strong> different Saccharomyces species to remove deoxynivalenol<br />
from liquid medium. HPLC/MS was used for monitoring both the yeasts growth<br />
and mycotoxin reduction. From six species tested, four was able to sorb from 40 – 68<br />
% <strong>of</strong> deoxynivalenol.<br />
Keywords: mycotoxins, deoxynivalenol, Saccharomyces, sorbtion
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P015 Separation <strong>of</strong> Complex Oligosaccharides from<br />
Worth and Beer Using HPLC<br />
Jana Cabálková, Janette Bobáľová<br />
Institute <strong>of</strong> Analytical Chemistry, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic v.v.i.,<br />
Department <strong>of</strong> Proteomics and Glycomics, Veveří 97, CZ-60200 Brno,<br />
Czech Republic<br />
cabalkova@iach.cz<br />
Monitoring <strong>of</strong> oligosaccharides (OS) during the malting and fermentation processes<br />
has essential and practical importance for development <strong>of</strong> brewing technologies.<br />
The intent <strong>of</strong> the study was to optimize analytical conditions for separation <strong>of</strong><br />
the OS during the malting process from worth and beer.<br />
Non-derivatized OS were separated by high performance liquid chromatography<br />
(HPLC) with refractive index (RI) detection on Prevail Carbohydrate ES HPLC<br />
analytical column using mixture <strong>of</strong> acetonitrile/water 3:2 (v/v). Under optimized<br />
conditions, samples <strong>of</strong> congress wort, hopped worth, green beer, and beer revealed<br />
noticeable changes in the quantity <strong>of</strong> OS for multiple degree <strong>of</strong> polymerization<br />
(DP) from di- up to tetradecasaccharides. Low molecular weight OS (up to DP 4)<br />
showed significant decrease in the samples <strong>of</strong> green beer compared to the congress<br />
wort. They were consisted <strong>of</strong> linear α-(1→4)-linked glucose chains, so were easily<br />
fermented. On the contrary, high molecular weight OS (above DP 4) did not showed<br />
any significant changes in their content. They could not be easily fermented due to<br />
the presence <strong>of</strong> maltose/maltotriose residues <strong>of</strong> α-(1→6)-linkages.<br />
Acknowledgement: Work was supported by the Ministry <strong>of</strong> Education, Youth<br />
and Sports, Czech Republic, project No. 2B06037 and Institutional Research Plan<br />
AV0Z40310501.<br />
Keywords: oligosaccharides, wort, beer, HPLC<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P016 Traceability <strong>of</strong> Honey and Olive Oil Origin using<br />
SPME–GC×GC–TOFMS<br />
2.<br />
Tomas Cajka, Katerina Riddellova, Jana Hajslova<br />
Institute <strong>of</strong> Chemical Technology, Department <strong>of</strong> Food Chemistry and Analysis<br />
Technicka 3, 166 28 Prague 6, Czech Republic<br />
tomas.cajka@vscht.cz<br />
A wide range <strong>of</strong> volatile compounds occurs in food headspace, including components<br />
responsible for typical flavour, <strong>of</strong>f-flavour, and other quality/safety parameters.<br />
For the characterisation <strong>of</strong> volatiles, solid-phase microextraction (SPME) in<br />
combination with gas chromatography–mass spectrometry (GC–MS) represents a<br />
conceivable method <strong>of</strong> choice. Typically, conventional one-dimensional GC is used<br />
for the separation <strong>of</strong> volatiles. However, due to the complexity <strong>of</strong> aroma, co-elution<br />
<strong>of</strong> some volatiles may occur. Under these conditions, comprehensive two-dimensional<br />
GC (GC×GC), that separates compounds using two columns with fundamentally<br />
different separation mechanisms, represents a very promising tool for food<br />
pr<strong>of</strong>iling and other applications aimed at characterisation <strong>of</strong> a sample. In addition,<br />
application <strong>of</strong> time-<strong>of</strong>-flight MS allows obtaining full spectral information and also<br />
fast acquisition rates needed for a proper reconstruction <strong>of</strong> very narrow chromatographic<br />
peaks generated by GC×GC.<br />
In this presentation, application <strong>of</strong> SPME–GC×GC–TOFMS for the examination<br />
<strong>of</strong> volatile compounds in honey and olive oil samples will be discussed with emphasis<br />
on traceability <strong>of</strong> origin.<br />
Acknowledgements: This study was carried out within the projects FP6-FOOD-<br />
2004-006942–TRACE and MSM 6046137305.<br />
Keywords: volatile compounds, food analysis
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P018 Extention <strong>of</strong> Asparaginase Application to<br />
Acrylamide Minimization from Potato to Cereal<br />
Products<br />
Zuzana Ciesarová, Kristína Kukurová, Alena Bednáriková<br />
VÚP Food Research Institute<br />
Priemyselná 4, 824 75 Bratislava, Slovak Republic<br />
ciesarova@vup.sk<br />
The enzymatic way <strong>of</strong> acrylamide reduction seems to be a perspective option<br />
to the acquirement <strong>of</strong> higher safety <strong>of</strong> several heat-treated potato and cereal products.<br />
The main precursor <strong>of</strong> acrylamide formation is known to be, besides reducing<br />
saccharides, amino acid asparagine. The application <strong>of</strong> enzyme asparaginase leads<br />
to the avoidance <strong>of</strong> acrylamide formation due to the conversion <strong>of</strong> asparagine to<br />
aspartic acid which results in a less occurrence <strong>of</strong> acrylamide in final food products.<br />
The asparaginase application was successfully demonstrated in potato-based products<br />
with addition <strong>of</strong> enzyme solution to the dough and no alterations in sensory<br />
properties were observed. The more extensive mitigation <strong>of</strong> acrylamide level is supposed<br />
to be attained at optimised conditions <strong>of</strong> enzyme application and heat treatment.<br />
Similarly, the enzyme utilization was enlarged to the cereal-based products,<br />
especially in gingerbread and home-made sweet fried cakes production which was<br />
proved on a simulated model matrix.<br />
Acknowledgement: This work was supported by the Slovak Research and<br />
Development Agency under the contract No. COST-0015-06.<br />
Keywords: acrylamide, asparaginase<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P019 Amino Acids Pr<strong>of</strong>ile <strong>of</strong> Selected Wholegrains<br />
Important to Acrylamide Formation in Cerealbased<br />
Products<br />
2.<br />
Zuzana Ciesarová, Kristína Kukurová, Alena Bednáriková,<br />
Peter Hozlár<br />
VÚP Food Research Institute<br />
Priemyselná 4, 824 75 Bratislava, Slovak Republic<br />
ciesarova@vup.sk<br />
Acrylamide as a suspected carcinogen attracts great attention due to its widespread<br />
occurrence in many staple foods <strong>of</strong> daily usage as well as due to the<br />
recommendation <strong>of</strong> the European Commission to minimize its level. It is known<br />
that acrylamide arises from naturally occurred compounds in plants such as reducing<br />
saccharides and amino acids during the commonly used process <strong>of</strong> heat treatment<br />
<strong>of</strong> foods. In the cereal sector the main way <strong>of</strong> acrylamide reduction is through<br />
amino acids control responsible for acrylamide formation. Acrylamide is preferably<br />
formed from amino acid L-asparagine, only in a less extent from aspartic acid, glutamine,<br />
and glutamic acid in the presence <strong>of</strong> saccharides at baking. From the point<br />
<strong>of</strong> view <strong>of</strong> acrylamide formation, the selected 10 sorts <strong>of</strong> wholegrains appointed for<br />
human usage in bread and cereal breakfast production were assorted according to<br />
pr<strong>of</strong>ile <strong>of</strong> amino acids mentioned above.<br />
Acknowledgement: This work was supported by the Slovak Research and<br />
Development Agency under the contract No. COST-0015-06.<br />
Keywords: acrylamide, asparagine
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P019 Characterization <strong>of</strong> Beta-Carotene Enriched<br />
Biomass Production by Red Yeasts<br />
Martina Čarnecká, Andrea Hároniková, Terezie Dvořáková,<br />
Andrea Halienová, Ivana Márová, Emília Breierová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry , Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 118, 612 00 Brno<br />
e-mail: carnecka@fch.vutbr.cz<br />
During the last decades fast progress has been made within the field <strong>of</strong> biochemistry<br />
<strong>of</strong> carotenoid biosynthesis in bacteria, fungi, and plants. Although more<br />
than 600 different carotenoids have been identified in nature, only a few are used<br />
industrially. There are many yeast strains able to produce different carotenoids.<br />
However, the heterobasidiomycetous yeast Xanthophyllomyces dendrorhous, are the<br />
only microbial systems with commercial potentials for the production <strong>of</strong> astaxanthin.<br />
In this work three different carotenogenic strains (Sporobolomyces roseus.,<br />
Rhodotorula glutinis, Rhodotorula rubra) were enrolled into a comparative study.<br />
Each strain was cultivated at optimal growth conditions and in medium with modified<br />
carbon and nitrogen sources. Complex substrates as well as some waste materials<br />
(whey, potato extract) were used as nutrient source. Some types <strong>of</strong> exogenous<br />
stress were applied too. The production <strong>of</strong> carotene-enriched biomass was carried<br />
out in flasks as well as in laboratory fermentor. As the best producer <strong>of</strong> enriched biomass<br />
strain Rhodotorula glutinis CCY 20-2-26 was found. Production <strong>of</strong> biomass in<br />
R.glutinis was about 35 g/l. Total carotene enrichment <strong>of</strong> this biomass about 2.5 mg/g<br />
d.w. was obtained. Significant changes in biomass as well as carotenoid production<br />
were observed in individual strains according to cultivation conditions.<br />
Keywords: carotenoids, Rhodotorula, Sporobolomyces<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P020 Monitoring <strong>of</strong> Polycyclic Aromatic<br />
Hydrocarbons and Pesticides Occurring in Oils<br />
and Fish Products<br />
2. 0<br />
Lucie Drábová, Marie Suchanová,<br />
Vladimír Kocourek, Jana Hajšlová<br />
Department <strong>of</strong> Food Chemistry and Analysis, ICT, Prague<br />
Technická 3, CZ-16628 Prague 6, Czech Republic<br />
lucie.drabova@vscht..cz<br />
A wide range <strong>of</strong> organic contaminants may occur in canned fish and sea products.<br />
Both components <strong>of</strong> animal origin and plant ingrediences such as olive oil,<br />
vegetables, spices etc., may contain hazardous chemicals.<br />
In this study, 20 polycyclic aromatic hydrocarbons (PAHs) (both EU and EPA<br />
priority list), persistent halogenated contaminants represented by DDT, HCB, PCBs<br />
and BFRs, together with 112 modern pesticides were determined in all together 40<br />
samples collected at Czech market.<br />
Pressurized liquid extraction (PLE) was employed for analyte isolation followed<br />
in the next step by automated gel permeation chromatography (GPC) used<br />
for remaining major matrix coextracts. Quantification <strong>of</strong> target contaminants was<br />
carried out by either GC/MS (single quadrupole) or GCxGC – TOF MS.The data<br />
obtained in this study will be critically assessed with regard to performance characteristics<br />
<strong>of</strong> analytical performance and occurrence <strong>of</strong> target chemicals in examined<br />
samples.<br />
The study was carried out within the project MSM 6046137505 supported by<br />
the MSMT <strong>of</strong> the Czech Republic<br />
Keywords: GC/MS, PLE, organic contaminants
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P021 Biogenic Amines in Cheeses and Human Health<br />
Eva Dudriková, Zuzana Dičáková<br />
University <strong>of</strong> Veterinary Medicine<br />
Komenského 73, 041 81 Košice, Slovak Republic<br />
dicakova@uvm.sk<br />
Biogenic amines are low molecular weight alkyl- or aryl-substituted derivatives<br />
<strong>of</strong> ammonia. The substituents can have aliphatic, aromatic or heterocyclic structures.<br />
The number <strong>of</strong> alkyl or aryl groups attached to the nitrogen determines whether<br />
the amine is primary, secondary and tertiary. The most important ones from the<br />
food hygienic point <strong>of</strong> view are primary amines. Fresh milk usually contains very<br />
low levels <strong>of</strong> biogenic amines. However, some microbes found in raw milk or used<br />
as starter cultures possess decarboxylating enzymes, which can convert free amino<br />
acids to potentially toxic biogenic amines. Cheese is the most commonly implicated<br />
food item associated with biogenic amine food poisoning. The matured cheeses are<br />
the typical dairy products that have caused biogenic amine intoxications. Due to<br />
the great variety <strong>of</strong> individual sensitivity and the effect <strong>of</strong> potentiating factors, it is<br />
not always easy to establish the acceptable levels <strong>of</strong> amines in foods. Furthermore,<br />
the effects <strong>of</strong> each biogenic amine vary and it is not clear whether the limit values<br />
should be set for individual amines, for the sum <strong>of</strong> the toxic <strong>of</strong> all amines detected.<br />
Until now, there have been no <strong>of</strong>ficial limits for the concentrations <strong>of</strong> biogenic amines<br />
in dairy products; the limit value <strong>of</strong> 200 mg.kg -1 has been given only for the<br />
tyramine in hard cheeses. Approximately 1 000 mg.kg -1 is supposed to elicit toxicity.<br />
It is generally known, that from a good manufacturing practice viewpoint, levels <strong>of</strong><br />
50 – 100 mg.kg -1 histamine, 100 – 800 mg.kg -1 tyramine, or a total <strong>of</strong> 100 – 200 mg.kg -1<br />
are regarded as acceptable. The reported ranges <strong>of</strong> biogenic amines in cheeses have<br />
varied from not detected to 2 500 mg.kg -1 histamine, 2 210 mg.kg -1 tyramine, 1 390<br />
mg.kg -1 cadaverine and 684 mg.kg -1 putrescine.<br />
Cadaverine (CAD), histamine (HIS), tyramine (TYR) and putrescine (PUT)<br />
were determined in 31 commercial cheeses commonly consumed in Slovakia (high<br />
cooked cheese, like Emmental, n = 5; low cooked cheese, like Edam, n = 8; mozzarella<br />
like cheese, n = 9; mould cheese, n = 5, and sour natural ripened cheese containing<br />
yeasts and Brevibacterium linens, n = 4), using ion-exchange chromatography. Limit<br />
<strong>of</strong> detection for all determined biogenic amine was 0.5 mg.kg -1 and limit <strong>of</strong> quantification<br />
was 1.0 mg.kg -1 , respectively. Chemical analyses were carried out in parallel<br />
with determination <strong>of</strong> sensory assessment <strong>of</strong> cheeses and their microbiological ...<br />
The extend <strong>of</strong> this <strong>abstract</strong> exceeded the allowed size and therefore had to be clipped.<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P022 Phytosterol and Fatty Acid Pr<strong>of</strong>ile <strong>of</strong> Four<br />
Edible Functional Oils Processed in Romania<br />
2. 2<br />
Francisc Vasile Dulf, Carmen Socaciu, Constantin Bele, Adela Pintea,<br />
Mihaela L. Ungureşan<br />
University <strong>of</strong> Agricultural Sciences and Veterinary Medicine,<br />
3-5 Mãnãstur Str., 400372, Cluj-Napoca, Romania,<br />
francisc_dulf@yahoo.com<br />
In seed (kernel) oils triacylglycerols are the main constituents making up about<br />
95–98% <strong>of</strong> the oils. The remaining nonglyceridic fraction (2–5%) consists <strong>of</strong> different<br />
compound classes such as sterols (free and esterified), pigments, hydrocarbons,<br />
tocopherols, fatty alcohols, etc.<br />
Four functional oils: walnuts, sesame, peanut and poppy seed oil, processed<br />
by minimal technologies (cold pressing) in Romania were investigated. The goal<br />
<strong>of</strong> the present study was the identification and quantification <strong>of</strong> fatty acids as FA-<br />
MEs (fatty acid methyl esters), in the total lipid extracts and in the esterified sterol<br />
fractions. Free and esterified sterols were also quantified as trimethylsilyl ether<br />
derivatives, using gas-chromatography (GC) with flame ionization detector (FID).<br />
The main fatty acids found in both <strong>of</strong> the studied fractions <strong>of</strong> these four edible oils<br />
were: palmitic, stearic, oleic and linoleic acid at different concentrations, depending<br />
on the oil type. The total phytosterol pr<strong>of</strong>ile was also different, the predominant<br />
phytosterols in all vegetable oils being β-sitosterol, campesterol and ∆ 5 -avenasterol.<br />
In walnut and sesame oil the dominant form <strong>of</strong> sterols was the free one. The total<br />
sterol concentrations ranged from 182 mg/100g oil (peanuts oil) to 545 mg/100 g oil<br />
(sesame oil).<br />
Keywords: edible oils, fatty acids, sterols, GC-FID
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P023 Antioxidant Activity <strong>of</strong> Flavanols From Grape<br />
Seed Extracts<br />
Rugina Dumitrita, Simona Vicas, Carmen Momeu, Carmen Socaciu<br />
University <strong>of</strong> Agricultural Sciences and Veterniary Medicine,<br />
Cluj -Napoca, Manastur street, No.3-5, postal code 400372,<br />
oliviapreda@gmail.com<br />
Flavonoids belong to polyphenols class, being plant secondary metabolites. One<br />
<strong>of</strong> the most interesting subclass <strong>of</strong> flavonoids is flavanols, encountered in grapes,<br />
exhibiting antioxidant properties. Flavanols from four Romanian grape seed varieties:<br />
Merlot, Feteasca, Mustoasa, Chasla were extracted and the antioxidative capacity<br />
was determined by DPPH, TEAC, ORAC and Folin Ciocalteu assays.<br />
DPPH assay and TEAC assay show that Merlot grape seed extract has an antioxidative<br />
potential 7.6 mM Trolox Eq/g, respective 8 mM Trolox eq/g sample, when<br />
extracts contain 80% flavanols (HPLC determination). Mustoasa grape seed extract<br />
has the antioxidative effect 2.2 mM Trolox Eq/g grape seed powder, respective 5 mM<br />
Trolox Eq/g sample, when extracts contain 45% flavanols (HPLC determination).<br />
ORAC assay shows the following ranking: Merlot > Mustoasa ~ Feteasca ><br />
Chasla (in the assay is used a neutral pH close to in vivo pH). The same ranking <strong>of</strong><br />
antioxidant potential was obtained also with Folin Ciocalteu assay.<br />
Merlot, Mustoasa, Feteasca varieties have a high reductive capacity <strong>of</strong> three<br />
different radicals (DPPH . ; ABTS . ; peroxyl).<br />
These antioxidant assays values could not be compared among themself, but<br />
can be easely corelated with Folin Ciocalteu assay.<br />
Keywords: antioxidant, grape seeds.<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P024 Influence <strong>of</strong> Long-Term Storage Onditions<br />
on Antioxidant and Other Active Component<br />
Content in Several Sorts <strong>of</strong> Apples<br />
2.<br />
Kateřina Duroňová, Kateřina Pařilová, Andrea Halienová, Jitka Dvořáková,<br />
Radka Kočí, Jan Goliáš, Ivana Márová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry , Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 118, 612 00 Brno<br />
xcduronova@fch.vutbr.cz<br />
Apples are one <strong>of</strong> the most common sources <strong>of</strong> natural antioxidants in Czech<br />
population. This work was focused on study <strong>of</strong> changes <strong>of</strong> antioxidant content, enzyme<br />
activites, protein and composition in several local sorts <strong>of</strong> apples stored for a<br />
long time at controlled atmosphere with reduced oxygen content. To qualitative as<br />
well as quantitative analysis <strong>of</strong> individual low-molecular weight antioxidants RP-<br />
HPLC/UV-VIS and LC/MS were used. Activites <strong>of</strong> superoxide dismutase, peroxidase<br />
and polyphenoloxidase were measured spectrophotometrically, antioxidant<br />
activity was measured by Randox kit. Proteins were analyzed by 1D micr<strong>of</strong>luidic<br />
system Experion, saccharides by HPLC/RI. Except long-term storage conditions also<br />
influence <strong>of</strong> some other commonly used technological processes were tested (freezing,<br />
drying).<br />
Antioxidant levels differed according to apple sort and colour. A part <strong>of</strong> phenolics<br />
formed by flavonoids was in a range <strong>of</strong> 30 to 60 %. Ascorbate levels detected<br />
in apples were in range 12 – 51 mg/kg. Freezing exhibited very low influence on<br />
antioxidant content. Regulated led to about 50% decrease <strong>of</strong> antioxidants. Changes<br />
<strong>of</strong> active substances during long-term storage under controlled atmosphere were<br />
dependent on apple sort and oxygen concentration.<br />
Keywords: apples, long-term storage, antioxidants
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P025 Content <strong>of</strong> Polyphenols and Antiradical<br />
Activity <strong>of</strong> bee Pollen<br />
Katarína Fatrcová-Šramková, Janka Nôžková, Magda Máriássyová,<br />
Miroslava Kačániová, Eva Dudriková<br />
Food Research Institute, Centre in Modra,<br />
Department <strong>of</strong> Microbiology, Faculty <strong>of</strong> Biotechnology and Food Industry, SUA Nitra,<br />
Slovak Republic<br />
The aim <strong>of</strong> the study was to measure content <strong>of</strong> polyphenols and the antiradical<br />
activity <strong>of</strong> dried bee pollen (moisture 9–11 %). There were selected following plant<br />
species Papaver somniferum L., Brassica napus var. rapifera (Moench) Delile, Helianthus<br />
annuus L. Antiradical activity <strong>of</strong> various bee pollen samples was determined using<br />
the free DPPH • radical. Absorbance at 515.6 nm was measured at different time<br />
intervals using Shimadzu 1601 UV/VIS spectrophotometer (UV-1601, Shimadzu,<br />
Tokyo, Japan) until the reaction reached a plateau. The absorbance <strong>of</strong> the 2.2-diphenyl-1-pikrylhydrazyle<br />
radical (DPPH • ) without an antioxidant (i.e. the control), was<br />
measured first. The percent <strong>of</strong> inhibition <strong>of</strong> the DPPH • radical by the sample was<br />
then calculated according to the formula: % inhib = [(A C0 - A At )/A C0 ] x 100, where<br />
A C0 is the absorbance <strong>of</strong> the control at t = 0 minute, A At is the absorbance <strong>of</strong> the<br />
antioxidant at time t minutes, % inhib equals percentage <strong>of</strong> free DPPH • radicals.<br />
The polyphenols content in pollen was measured by the Folin-Ciocalteu method.<br />
The antiradical activity was in the particular samples in range from 48.83 to 86.12<br />
% (average 71.39 ± 16.45 %). Antiradical activity as determined by the DPPH radical<br />
scavenging method decreased in the order: Brassica napus var. oleifera (Moench)<br />
Delile > Papaver somniferum L > Helianthus annuus L. In samples <strong>of</strong> bee pollen was<br />
the polyphenol content in the range from 764 do 1378 mg.kg -1 (average 1026.67 ±<br />
258.31 mg.kg -1 ). Antiradical activity increase in the same order than content <strong>of</strong> polyphenols.<br />
This work was supported by Science and Technology Assistance Agency<br />
under the contract No. APVT-20-026704.<br />
Keywords: bee pollen, antiradical activity, DPPH, polyphenols<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P026 Reduction Power, Polyphenols Content and<br />
Antimicrobial Activity <strong>of</strong> Honey<br />
2.<br />
Katarína Fatrcová-Šramková, Janka Nôžková, Miroslava Kačániová,<br />
Magda Máriássyová, Eva Dudriková<br />
Department <strong>of</strong> Human Nutrition, Faculty <strong>of</strong> Agrobiology and Food Resources<br />
University <strong>of</strong> Veterinary Medicine, Kosice, Slovak Republic<br />
The aim <strong>of</strong> the study was to measure content <strong>of</strong> polyphenols and the reduction<br />
power <strong>of</strong> honey from Castanea sativa Mill. and Brassica napus var. rapifera (Moench)<br />
Delile. Reduction power was evaluated by the method <strong>of</strong> Prieto. This method is<br />
established on reduction <strong>of</strong> Mo (VI) to Mo (V) with an effect <strong>of</strong> reduction parts in<br />
the presence <strong>of</strong> phosphor under formation <strong>of</strong> green phosphomolybdenum complex.<br />
Solution absorbance <strong>of</strong> reducing sample was measured at 705 nm (UV-1601, Shimadzu,<br />
Tokyo, Japan) toward black experiment (distilled water). Reduction power<br />
<strong>of</strong> compounds (RP ) expressed as quantity <strong>of</strong> ascorbic acid necessary to achieve<br />
AA<br />
the same effect in μg.ml-1 was calculated using the equation: RP = (A – 0.0011)<br />
AA 705 nm<br />
/ 0.00236.<br />
The polyphenols content in honey was measured by the Folin-Ciocalteu method.<br />
The antimicrobial activity <strong>of</strong> honey against Alternaria infectoria, Scopulariopsis<br />
brevicaulis, Trychophyton ajelloi and Saccharomyces cerevisiae was studied using the<br />
agar well diffusion method as well. Reduction power <strong>of</strong> chestnut honey compounds<br />
was higher (4083.67 ± 4.50 μg.ml-1 ) than rape honey (3618.33 ± 3.30 μg.ml-1 ). Comparison<br />
<strong>of</strong> polyphenols content also refers on higher values in chestnut honey than<br />
in rape honey (65.33 ± 3.86 mg.kg-1 versus 41.00 ± 2.16 mg.kg-1 ). This work was supported<br />
by Science and Technology Assistance Agency under the contract No. APVT-<br />
20-026704.<br />
Keywords: honey, reduction power, polyphenols
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P027 omparison <strong>of</strong> pectate hydrolases from parsley<br />
root cells<br />
D. Flodrová, E. Stratilová, S. Garajová and J. Omelková<br />
Faculty <strong>of</strong> Chemistry, Technical University <strong>of</strong> Brno<br />
Purkyňova 118, CZ-61200 Brno<br />
flodrova@fch.vutbr.cz<br />
Pectate hydrolases <strong>of</strong> plants are generally supposed to be bound on primary<br />
cell wall where the catalysis <strong>of</strong> homogalacturonan as a side chain <strong>of</strong> pectin structure<br />
occures. These enzymes with terminal action pattern (exopolygalacturonases, EC<br />
3.2.1.67) can be found in each plant species while the production <strong>of</strong> those with random<br />
action pattern (polygalacturonases, EC 3.2.1.15) indicates the requirement <strong>of</strong><br />
plant tissue s<strong>of</strong>tening. Interestingly, while the function, structure and importance <strong>of</strong><br />
plant polygalacturonases is widely known, the reseach <strong>of</strong> exopolygalacturonases is<br />
still on its beginning. References about the strict preference for polymeric substrates<br />
<strong>of</strong> these enzymes can be found unlike exopolygalacturonases produced by microorganisms<br />
which can prefer substrates with lower degree <strong>of</strong> polymerization, too.<br />
Five forms <strong>of</strong> pectate hydrolases purified from parsley roots cells are described<br />
in this work. Only one <strong>of</strong> them was strictly bound on the cell wall, enzyme<br />
with preference for decamer as the substrate. Other three forms, surprisingly with<br />
the preference for hexagalacturonate, were found in other cell structures. Only one<br />
typical form <strong>of</strong> exopolygalacturonase with preference for polymeric substrate was<br />
identified, partially bound on the cell wall and partially free in cytosole. The action<br />
pattern <strong>of</strong> individual forms for oligogalacturonides was evaluated using HPLC.<br />
Keywords: pectate hydrolases, exopolygalacturonase<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P028 Mechanism <strong>of</strong> Bi Bi Reaction <strong>of</strong> Xyloglucan<br />
Endotransglycosylase (XET) from Petroselinum<br />
Crispum Roots<br />
2.<br />
S. Garajová, D. Flodrová, V. Farkaš and E. Stratilová<br />
Institute <strong>of</strong> Chemistry, Slovak Academy <strong>of</strong> Sciences<br />
Dúbravská cesta 9, SK-84538 Bratislava, Slovakia<br />
chemsong@savba.sk<br />
Plant xyloglucan endotransglycosylases (XETs, EC 2.4.1.207) react with the<br />
polysaccharide xyloglucan (XG) by random cleavage <strong>of</strong> the β-1,4-polyglucose<br />
backbone <strong>of</strong> the donor molecule and transfer <strong>of</strong> the newly created potential<br />
reducing end to hydroxyl group at C-4 on the non-reducing end <strong>of</strong> another XG<br />
molecule or XG-derived oligosaccharide (XGOs) (transglycosylation). There are<br />
two possible models <strong>of</strong> Bi Bi reaction mechanism: Pin-Pong and Sequential. In<br />
the Ping-Pong Bi Bi mechanism, the cleveage and transglycosylation <strong>of</strong> polyglycan<br />
chain with newly created reducing end to the acceptor run in two steps,<br />
where the frist product is released from the stable enzyme-substrate complex<br />
before the second substrate can bind. In the case <strong>of</strong> Sequential mechanism as<br />
an alternative mechanism, the reaction is utilizing practically only one step to<br />
form a ternary complex <strong>of</strong> enzyme with both substrates before the cleveage and<br />
translycosylation.<br />
The main XET form from parsley (Petroselinum crispum) roots with isoelectric<br />
point 4.6 showed a broad pH optimum in the region <strong>of</strong> enzyme pH stability<br />
4.5-9.0 with one maximum in acidic (5.8) and the second one in alkalic (8.8)<br />
region. The affinity <strong>of</strong> this form in dependence on various XGOs acceptors (DP<br />
8 and 9) was determined as well as the mechanism <strong>of</strong> Bi Bi reaction in both pHs<br />
was suggested from the double-reciprocal plots using high-Mr xyloglucan and<br />
H-labelled XGOs.<br />
Keyword: xyloglucan endotransglycosylase, Bi Bi reaction
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P029 Multispeciation in Wines by Orthogonal<br />
Chromatograpy Coupled to UV, Refraction Index<br />
and ICP-MS Detectors<br />
T. García-Barrera, J. L. Gómez-Ariza<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen. 21007 Huelva (SPAIN).<br />
tamara.garcia@dqcm.uhu.es<br />
Metals can modify the organoleptic properties <strong>of</strong> wines and the stability, colour,<br />
and clarity <strong>of</strong> wines; this is the case <strong>of</strong> Fe, Cu, Mn, and Zn. Some <strong>of</strong> them are<br />
catalysts promoting enzymes; they are also involved in some redox processes in cell<br />
metabolism. However, a deep knowledge on the different chemical species occurring<br />
gives greater information about toxicity and action <strong>of</strong> elements.<br />
The usual approaches for metal speciation in wines, are based in both atomic<br />
absorption spectrometry (AAS) and inductively coupled plasma atomic emission<br />
spectrometry (ICP-AES). The evolution <strong>of</strong> metals throughout the ripening <strong>of</strong> grapes<br />
and vinification processes has also been studied but under our knowledge, the<br />
SEC/reversed phase (RP)-HPLC on-line coupled to ICP-MS have not been yet performed.<br />
In this study, the metal complexes characterization in wines has been carried<br />
out by on-line coupling <strong>of</strong> SEC-ICP-MS using a Sephadex LH20 column especially<br />
designed for the separation <strong>of</strong> low molecular weight compounds (phenols, vitamins,<br />
anthocyanins and others). After that, fractions <strong>of</strong> several elements were collected<br />
and analysed by reverse phase coupled to UV, refraction index detector and<br />
ICP-MS to get information about complexes <strong>of</strong> elements with anthocyanins, phenols<br />
and sugars. Finally, complexes were identified by retention time matching with<br />
standards <strong>of</strong> elements or organic compounds and molecular mass spectrometry.<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P030 Identification <strong>of</strong> Cu-Metalloproteins in Mus<br />
Musculus Brain Extracts by Reversed-Phase HPLC<br />
Coupled with ICP-MS and ESI-Qq-MS<br />
2. 0<br />
T. García-Barrera, M. Gónzalez-Fernández, J. López-Barea, C. Pueyo and J.<br />
L. Gómez-Ariza<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen. 21007 Huelva. (SPAIN).<br />
tamara@dqcm.uhu.es<br />
Orthogonal chromatography systems coupled to ICP-MS and organic mass<br />
spectrometry has been widely used for metal-biomolecules characterization in biological<br />
samples connected with in environmental issues. The use <strong>of</strong> these analytical<br />
approaches provides very interesting information to deep insight on toxicological<br />
concern <strong>of</strong> metals in the environment. The use <strong>of</strong> heteroatoms can be used as markers<br />
that simplify the traditional proteomic approaches.<br />
In previous study, several organs <strong>of</strong> Mus musculus mice were extracted and<br />
analyzed by size exclusion chromatography coupled to UV and inductively coupled<br />
plasma mass spectrometry (SEC-UV-ICP-MS). Some differences were found in the<br />
molecular mass distribution patterns <strong>of</strong> elements in the studied organs as in the case<br />
<strong>of</strong> a Cu-containig fraction that was only pressent in the brain. This fraction was collected,<br />
lyophilized and separated by reversed-phase (RP) HPLC following the Cu<br />
with the ICP-MS.<br />
In this study, unknown metallobiomolecules have been identificated using<br />
electrospray coupled to quadrupole time-<strong>of</strong>-flight (ESI-Qq-TOF) after tryptic digestion.<br />
2D-PAGE study <strong>of</strong> the extracts was performed in parallel, for the identification<br />
<strong>of</strong> overall proteins, after tryptic digestion <strong>of</strong> the spots. Comparison <strong>of</strong> metallomics<br />
and proteomics results was performed and correlated with Mus musculus genome<br />
information from data base.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P031 Analysis <strong>of</strong> Flavor Compounds in Fruits by GC<br />
with two Dimensional Detection by FID and MS<br />
T. García-Barrera, R. Jara Biedma, J. L. Gómez-Ariza<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen.21007 Huelva. (SPAIN)<br />
tamara@dqcm.uhu.es<br />
The fruit juice industry has become one <strong>of</strong> the world´s major agricultural businesses<br />
with world trade in fruit juices annually exceeding $ 10 billion [1]. A key<br />
characteristic <strong>of</strong> this product is the flavour. Sweet orange (Citrus sinensis) typical aroma<br />
is attributed to alcohols, hydrocarbons, esters and aldehydes considering solely<br />
the number <strong>of</strong> compounds involved. Among these compounds, citral, limonene,<br />
linalool, α-pinene, ethyl butanoate, acetaldehyde and octanal have been identified<br />
as most contributing to orange flavour, and can be used in orange juice authentication.<br />
In addition, some orange juice <strong>of</strong>f-flavours can be developed such as α-terpineol<br />
that is a well known <strong>of</strong>f-flavour compound present in stored citrus products formed<br />
from d-limonene or linalool.<br />
In this work, a method based on liquid-liquid extraction with ethyl acetate and<br />
later preconcentration has been optimised for the extraction <strong>of</strong> about twenty flavour<br />
compounds in orange juice. The identification was based on the retention time and<br />
the spectra obtained with the MS. Quantification data was obtained with both detectors.<br />
The levels <strong>of</strong> the flavour compounds have been used to enhance the quality <strong>of</strong><br />
oranges for industrial juice production and authentication purposes.<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P032 Content <strong>of</strong> Cadmium in selected Meat Products<br />
Supplied on the Slovak Marked<br />
2. 2<br />
Jozef Golian, Branislav Šiška, Robert Toman, Michal Bošiak<br />
Fakulty <strong>of</strong> Biotechnology and Food Sciences, Slovak Agricultural University in Nitra<br />
Trieda A. Hlinku 2, 949 76 Nitra<br />
jozef.golian.AF@uniag.sk<br />
The content <strong>of</strong> cadmium in selected meat products from Slovak Republic, Czech<br />
Republic, Germany and Austria was measured. We analysed 360 samples <strong>of</strong> sausages,<br />
hams and frankfurters and determined values were compared with Food codex<br />
<strong>of</strong> the Slovak Republic. In products from domestic production mean values <strong>of</strong> cadmium<br />
were from 0,004 mg.kg -1 (sausages) to 0,247 mg.kg -1 (frankfurters), in products<br />
from Czech Republic from 0.002 mg.kg -1 (frankfurters) to 0.174 mg.kg -1 (frankfurters),<br />
in products from Austria from 0.002 mg.kg -1 (hams and frankfurters) to 0,147<br />
mg.kg -1 (frankfurters) and in products from Germany from 0,002 mg.kg -1 (sausages)<br />
to 0.212 mg.kg -1 (frankfurters). Excess <strong>of</strong> the highest permissible value for cadmium<br />
was detected in 17 samples from Slovak Republic, in 15 meat samples from Czech<br />
Republic, in 14 samples from Austria and in 11 samples from Germany.<br />
Keywords: cadmium, meat products
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P033 Chiral Speciation <strong>of</strong> Iodine in Thyroid Hormones<br />
by Using HPLC-MS/MS and HPLC-ICP-MS<br />
J. L. Gómez-Ariza, E. Gómez de las Heras, T. García-Barrera<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen. 21007 Huelva (SPAIN).<br />
tamara.garcia@dqcm.uhu.es<br />
Iodine is an essential element for humans and animals generally included into<br />
thyroid hormones. The deficiency <strong>of</strong> this element can produce mental disease and<br />
poor physical development in children and goiter in adults. For this reason new<br />
diets that include iodine in supplements are becoming recommended. The most<br />
important bioactive iodine species are: iodo-tyrosine (MIT), diiodo-tyrosine (DIT),<br />
diiodo-thyronine (T2), triiodo-thyronine (T3), thyroxine (T4). These species have<br />
chiral centres, and the different enantiomers forms have shown differential biological<br />
effectiveness.<br />
Iodine speciation is frequently based on the coupling <strong>of</strong> HPLC with UV detection,<br />
especially for pharmaceutical formulations [1]. However, the sensitivity obtained<br />
with this detector is low and the species identification is not unequivocal.<br />
For this reason, other authors have proposed the use <strong>of</strong> HPLC-MS, especially for<br />
biological and food matrices in which iodine concentration is low and critical.<br />
In the present work, a comprehensive analytical approach based on the parallel<br />
use <strong>of</strong> HPLC-MS/MS and HPLC-ICP-MS has been optimized for iodine speciation<br />
and applied to algae used as potential source for iodine supplement in humans.<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P034 Development <strong>of</strong> a rapid arsenic Speciation<br />
Procedure for Marine Origin Food based on<br />
Ultrasound Probe Extraction<br />
and HPLC-UV-HG-AFS<br />
2.<br />
J. L. Gómez-Ariza, M. Contreras-Acuña, T. García-Barrera<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen. 21007 Huelva (SPAIN).<br />
ariza@uhu.es<br />
Arsenic is widely distributed in environmental and biological systems. Total<br />
As content does not give usually enough information about the environmental and<br />
health concern <strong>of</strong> this element, and a deep knowledge on the different chemical<br />
arsenic-species occurring in environmental components and biological pathways<br />
gives greater information about As toxicity and action. It is generally accepted that<br />
the toxicity <strong>of</strong> arsenic is greater for inorganic species that for organic species. The<br />
natural occurrence or anthropogenic origin (e.g. pesticides, fertilizers) <strong>of</strong> As in water<br />
and soils, and the food chain, result in exposure <strong>of</strong> humans to different As species, a<br />
list that includes more than twenty species <strong>of</strong> natural origin.<br />
Different analytical approaches have been propose for arsenic speciation,<br />
mainly based on the coupling <strong>of</strong> HPLC with ICP-MS or atomic fluorescence (AFS)<br />
detectors, this latter preceded by arsenic species derivatization by hydrides generation.<br />
However, the critical step in arsenic speciation is species extraction from complex<br />
matrices, especially those from marine origin, such as bivalves or fish that are<br />
latterly used as human food.<br />
In the present study the use <strong>of</strong> ultrasound probe for fast and efficient extraction<br />
<strong>of</strong> arsenic species from marine origin food has been evaluated in comparison<br />
with well established methods that use other non focalised energy such as MW and<br />
ultrasound bath. Arsenic species characterization was traced by using HPLC-UV-<br />
HG-AFS.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P035 Comparison <strong>of</strong> Proteome and Metabolome<br />
Changes in Stressed Yeast Strains Rhodotorula<br />
Glutinis and Rhodotorula Rubra<br />
Andrea Halienová, Ivana Márová, Zbyněk Zdráhal, Hana Konečná,<br />
Martina Čarnecká, Kateřina Pařilová, Emília Breierová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry , Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 118, 612 00 Brno<br />
In this work a proteome and metabolome changes in two strain <strong>of</strong> red yeasts –<br />
Rhodotorula glutinis and Rhodotorula rubra - were studied. Both strains were stressed<br />
by high and/or low concentration <strong>of</strong> salt and hydrogen peroxide. Proteome changes<br />
were analyzed using 2D gel electrophoresis. First, a complex procedure for red yeast<br />
proteins isolation excluding enzyme lysis was necessary to optimize. Lyophilized<br />
cell cultures were prepared as starting material and several precipitation and extraction<br />
steps were used for protein purification. Yeast proteome is quite complex, so,<br />
interpretation <strong>of</strong> 2D results is very difficult. After 2D-GE selected individual spots<br />
were analyzed in detail using LC/MS/MS. According to proteomic analysis it seems,<br />
that individual strains differ in their response to oxidative and osmotic stress. In<br />
both strains stressed by both salt and peroxide expression <strong>of</strong> some similar dominant<br />
proteins was influenced. Some spots were analyzed and proteins were identified<br />
according to databases. Further analysis is needed for detailed characterization <strong>of</strong><br />
individual spots. Metabolome analysis confirmed, that R.glutinis is better producer<br />
<strong>of</strong> beta-carotene than R.rubra.<br />
Keywords: proteomics, 2D-electrophoresis, beta-carotene, Rhodotorula<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P036 (1→3)(1→4)-β-D-Glucan: Variability and Factors<br />
Affecting Its Content in Oat Grain<br />
2.<br />
Michaela Havrlentová, Ján Kraic, Milan Čertík<br />
Slovak Agricultural Research Centre – Research Institute <strong>of</strong> Plant Production Piešťany<br />
Bratislavská 122, 921 68 Piešťany, Slovak Republic,<br />
havrlentova@vurv.sk<br />
β-D-glucan, an important cell wall polysaccharide <strong>of</strong> the Poales, plays a significant<br />
role in human diet due to its beneficial health effects. High variation <strong>of</strong> β-Dglucan<br />
content was observed in 99 oat genotypes and some features influencing the<br />
biosynthetic mechanism <strong>of</strong> studied metabolite were disclosed.<br />
Naked genotypes dispose <strong>of</strong> higher levels (4.48 % on average) <strong>of</strong> this metabolite<br />
in comparison with the glumoses one, where the mean content was 3.17 %. Genotypes<br />
with black colour <strong>of</strong> the glumes account significantly lower standard deviation<br />
and variation coefficients in the content <strong>of</strong> β-D-glucan, what indicates markedly<br />
stable biosynthetic mechanism <strong>of</strong> studied metabolite.<br />
Therefore our next efforts will be target to the gene analysis responsible for the<br />
β-D-glucan biosynthesis. Genotypes SV-5, PS-106, Neon, Šampionka, Arnold, and<br />
Adam with the highest level (>4.50 %) observed can be used in breeding programs<br />
and seed processing in food industry as a convenient raw material for production<br />
<strong>of</strong> functional foods.<br />
Key words: β-D-glucan, oat
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P037 Extraction and Determination <strong>of</strong> Flavonoids in<br />
Plant Materials<br />
Barbora Hohnová , Pavel Karásek, Milena Vespalcová<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, 61200 Brno, Czech Republic<br />
hohnova@fch.vutbr.cz<br />
Pressurized fluid extraction (PFE) followed by reversed phase high-performance<br />
liquid chromatography with UV-visible detection has been utilized for the<br />
determination <strong>of</strong> a group <strong>of</strong> flavonoids with related structures (quercetin, luteolin,<br />
apigenin and kaempferol) in plant materials. The effects <strong>of</strong> solvent composition,<br />
temperature and extraction time on PFE efficiency have been studied. The compounds<br />
were monitored and quantified at 360 nm.<br />
Keywords: PFE, flavonoids<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P038 Monitoring <strong>of</strong> Pesticide Residues in Commodities<br />
Used for Baby Food Production<br />
2.<br />
Jiří Honzíček, Jana Hajšlová, Vladimír Kocourek<br />
Institute <strong>of</strong> Chemical Technology, Department <strong>of</strong> Food Chemistry and Analysis<br />
Technická 3, 166 28, Prague 6, Czech Republic<br />
jiri.honzicek@vscht.cz<br />
Currently, more than 800 pesticide active ingredients in a wide range <strong>of</strong> commercial<br />
products are registered for use in agriculture to meet food supply demands.<br />
However, under certain circumstances, residues <strong>of</strong> active ingredients occur in<br />
treated crops at the time <strong>of</strong> harvest, even when they are applied in accordance with<br />
Good Agriculture Practise (GAP). The presence <strong>of</strong> those residues causes potential<br />
health risk for consumers resulting from acute and/or chronic dietary exposure.<br />
In this study, we collaborated with one <strong>of</strong> the most important producer <strong>of</strong> baby<br />
food in the Czech Republic by analysing the entrance as well as intermediate commodities<br />
for production <strong>of</strong> baby food. For determination <strong>of</strong> pesticide residues two<br />
complementary analytical strategies were used: gas chromatography–mass spectrometry<br />
(GC–MS) and liquid chromatography–tandem mass spectrometry (LC–MS/<br />
MS). From the 122 samples examined, 76.8% represented positive ones, i.e. concentrations<br />
<strong>of</strong> residues were higher than limits <strong>of</strong> quantification (LOQs) <strong>of</strong> particular<br />
multiresidual methods. The most frequently identified residues were: acetamiprid,<br />
carbaryl, carbendazim,cyprodinyl, DMST, dodine, fenbuconazole, fenhexamid,<br />
chlorpyrifos, imidacloprid,kresoxim-methyl, methamidophos, myclobutanil, parathion,<br />
phosalone, pirimicarb,pirimphos-methyl, propargite, pyridaben, pyrimethanil,<br />
tetraconazole, thiacloprid, and athiophanate-methyl.<br />
Keywords: pesticide residues, baby food, LC–MS/MS; GC–MS
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P039 Trichosporon Cutaneum: Cell Adhesion on<br />
Cellophane Surface<br />
J. Hrdinová, T. Krulikovská,V. Jirků, O. Schreiberová, A. Čejková, J. Masák<br />
Institute <strong>of</strong> Chemical Technology Prague , Faculty <strong>of</strong> Food and Biochemical Technology,<br />
Department <strong>of</strong> Fermentation Chemistry and Bioengineering,<br />
Technická 5, 166 28 Praha 6 – Dejvice, Czech Republic<br />
jitka.hrdinova@vscht.cz<br />
Cell adhesion <strong>of</strong> microorganisms on insoluble polymeric substrates is one <strong>of</strong><br />
the first (necessary) steps in their biodegradation.<br />
In this connection, the early and later phases <strong>of</strong> the yeast Trichosporon cutaneum<br />
bi<strong>of</strong>ilm formation on the cellophane surface were investigated and described under<br />
various physiochemical conditions.<br />
The colonization <strong>of</strong> a cellulosic material was observed using cellophane as a<br />
sole source <strong>of</strong> carbon. The effect <strong>of</strong> other nutrients pr<strong>of</strong>ile, shear stress, cell density,<br />
growth phase and pH was studied in Flow Cell FC 81.<br />
Keywords: yeast adhesion, cellophane<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P040 Seasonal Changes <strong>of</strong> Rubisco Activity and its<br />
Content in Norway Spruce Exposed to Ambient<br />
and Elevated CO 2 Concentrations<br />
2. 0<br />
Miroslav Hrstka, Lucie Zachová, Otmar Urban<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
hrstka@fch.vutbr.cz<br />
Rubisco initial and total activities as well as Rubisco content in Norway spruce<br />
(Picea abies) grown in ambient (A = 360 µmol CO 2 mol -1 ) and elevated (E = 700 µmol<br />
CO 2 mol -1 ) concentrations <strong>of</strong> carbon dioxide were measured. Both total and initial<br />
activities decreased during the growing season but a diminution <strong>of</strong> the activities in<br />
E was slower than in A. Rubisco content in A decreased during the whole growing<br />
season. Rubisco content in E decreased rapidly in the first half <strong>of</strong> the growing season<br />
(about 75 %) and increased in the second half <strong>of</strong> the growing season. We concluded<br />
that there is a downregulation <strong>of</strong> Rubisco content in the Norway spruce exposed to<br />
E in the first half <strong>of</strong> the season.<br />
Key words: Rubisco activity, Rubisco content, Norway spruce, downregulation.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P041 Enzyme Degradation <strong>of</strong> LIPIDS and its<br />
Application in lipid –Containing Wastewater<br />
Kateřina Illková, Jiřina Omelková, Bohumila Vlčková<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno 612 00<br />
xcillkova@fch.vutbr.cz,<br />
The ability <strong>of</strong> five enzymatic preparations to degrade the lipids in wastewater<br />
was studied. The aim <strong>of</strong> this study was to evaluate this preparations and to determine<br />
the preparation with the best efficiency. Based on the experimental results the<br />
optimal conditions for their application will be suggested. In all preparations the<br />
lipolytic activity was assessed using spectrophotometric method. Simultaneously,<br />
the temperature and time dependence was studied .<br />
Keywords: lipid degradation, lipolytic activity, wastewater<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P042 Gas Chromatography-Mass spectrometry<br />
Characterization <strong>of</strong> Sea Buckthorn<br />
2. 2<br />
Andreea Iordache, Radu Minea, Monica Culea, Camelia Lehene<br />
Babeş-Bolyai University, Biomedical Physics Department,<br />
1 Kogălniceanu St., 400084 Cluj-Napoca,<br />
Romania<br />
Quantitative analysis <strong>of</strong> polyunsaturated and polysaturated fatty acids in sea<br />
buckthorn (hippophae rhamnoides L) is presented. The internal standard used was<br />
C11:1 for fatty acid methyl esters determination. The extraction procedure was performed<br />
in dichloroethane and by maceration. The extraction was followed by methylation<br />
<strong>of</strong> fatty acids with methanol HCl 3M, at 100 o C, 30 min and gas chromatographic<br />
and gas chromatography- mass spectrometric analysis. A Rtx-5MS capillary<br />
column, 30mx0.32mm, 0.25μm film thickness, in a temperature program: 50 o C (2<br />
min) then 8 o C per minute to 310 o C (8min) was used. The method was applied for<br />
testing fatty acid changes after the treatment <strong>of</strong> sea buckthorn oil at different kGy<br />
doses.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P043 Rapid Authentification <strong>of</strong> Natural Juices<br />
by GC-MS<br />
Andreea Iordache, Monica Culea, Onuc Cozar<br />
Babeş-Bolyai University, Biomedical Physics Department,<br />
1 Kogălniceanu St., 400084 Cluj-Napoca,<br />
Romania<br />
Abstract. A GC-MS analytical method is described for some natural juices analysis.<br />
The fingerprint <strong>of</strong> sterols was used to characterize the natural juice. A rapid<br />
liquid-liquid extraction method was used. The sterols were separated on a Rtx-5MS<br />
capillary column, 15mx0.25mm, 0.25μm film thickness, in a temperature program<br />
from 50 o C for 1 min, then ramped at 15 o C/min to 300 o C and held for 15 min. Identification<br />
<strong>of</strong> sterols and their patterns were used for juice characterization. The sterol<br />
pr<strong>of</strong>ile is a useful approach for confirming the presence <strong>of</strong> juices <strong>of</strong> orange, grapefruit,<br />
pineapple and passion fruit in compounded beverages and for detecting <strong>of</strong><br />
adulteration <strong>of</strong> fruit juices.<br />
Keywords: gas chromatography, mass spectrometry, mass spectra,<br />
authentification<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P044 Comparative Extraction Methods <strong>of</strong> some<br />
Biologic Active Compounds in Herbs<br />
2.<br />
Andreea Iordache, Monica Culea, Onuc Cozar<br />
Babeş-Bolyai University, Biomedical Physics Department,<br />
1 Kogălniceanu St., 400084 Cluj-Napoca,<br />
Romania<br />
Different extraction methods have been compared for the recoveries study by<br />
using a synthetic mixture <strong>of</strong> some compounds found in plants. The extraction was<br />
compared at the same variables in the optimization process: amount <strong>of</strong> samples,<br />
extracting solvent volume, extraction temperature, extraction time. A liquid –liquid<br />
extraction method (LLE) was compared with two different solid-phase extraction<br />
method (SPE), a microwave one (MWE) and ultrasonic extraction one (USE). Good<br />
recovery values for a standard mixture were obtained. Precision <strong>of</strong> extraction methods<br />
gave relative standard deviation lower than 3%. The extracts were analyzed by<br />
GC and GC/MS. A HP-1 capillary column, 30m x 0.32 nm, 0.25μm film thick-ness, in<br />
a temperature program from 50 0 C, kept 2 minutes, then increased to 250 0 C, with a<br />
rate <strong>of</strong> 8 0 C per minute was used. By using an appropriate mixture <strong>of</strong> solvents, good<br />
recovery mean values were obtained by LLE (96%) comparable with the recoveries<br />
<strong>of</strong> other extraction methods as SPE (86%), MWE (103%) and USE (101%). The study<br />
was applied for fingerprint chromatograms to characterize the flavors extracted<br />
from herb plants <strong>of</strong> different sources.<br />
Key words: GC, GC/MS; liquid-liquid extraction (LLE); solid phase extraction<br />
(SPE); microwave extraction (MWE); ultrasonic extraction (USE).
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P045 Bioremediation <strong>of</strong> Botton Sediments using<br />
Bacillus Megaterium and Bacillus Cereus<br />
Katarina Jablonovska, Iveta Styriakova<br />
Department <strong>of</strong> Biotechnology, Institute <strong>of</strong> Geotechnics <strong>of</strong> the Slovac Academy <strong>of</strong> Science<br />
Watsonova 45, 043 53 Kosice, Slovak republic<br />
jablonov@saske.sk<br />
A water reservoir Ružín I. lies in an area, which several centuries is known for<br />
mining and metallurgical activities. Bottom sediments are contaminated with heavy<br />
metals, in the concrete with Hg, Cu, Mn, Zn, Ni and Cd, which were wash away into<br />
the water reservoir from locations <strong>of</strong> former mining activities. Enhanced amounts <strong>of</strong><br />
heavy metals preclude <strong>of</strong> direct utilization <strong>of</strong> sediments in agricultural and building<br />
industry and also in ground shaping.<br />
The availing <strong>of</strong> bioleaching techniques on mobilization <strong>of</strong> heavy metals from<br />
sediments seems to be an appropriate manner <strong>of</strong> retreatment. In this attempt we<br />
used beside indigenous micr<strong>of</strong>lora bacterial species Bacillus megaterium and Bacillus<br />
cereus too. These bacterial species were izolate from the soil matrix <strong>of</strong> sampling place<br />
Hornád-inlet. As a result <strong>of</strong> the sediment bioleaching in laboratory conditions was a<br />
reduced amount <strong>of</strong> Ni (about 9%), Cd (about 6,5%) and Zn (about 17%).<br />
Keywords: sediment, Bacillus sp., bioleaching<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P046 Biosorbents Preparation for Heavy Metals<br />
Removing from Waters<br />
2.<br />
Jana Jenčárová, Alena Luptáková<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Kosice, Slovakia<br />
jencarova@saske.sk<br />
Presence <strong>of</strong> heavy metals in waters is relatively <strong>of</strong>ten indicator <strong>of</strong> their pollution.<br />
Usage metals in various sectors <strong>of</strong> industry cause increased concentration<br />
<strong>of</strong> heavy metals in waters. Potential ecological or public health risk, which metals<br />
represent, depends largely upon the form in which they occur.<br />
At the present time are several techniques to remove heavy metals from waters.<br />
One <strong>of</strong> the possibilities is usage <strong>of</strong> microorganism, concrete sulphate-reducing bacteria<br />
(SRB). Iron sulphide precipitates produced by SRB as their metabolic products<br />
are the excellent sorbents for a wide range <strong>of</strong> heavy metals ions.<br />
The aim <strong>of</strong> this work is to study the possibility <strong>of</strong> using SRB (Desulfovibrio sp.)<br />
from source Gajdovka (Košice) for the preparation <strong>of</strong> iron sulphide sorbents. Experiments<br />
were realized in the batch reactor under anaerobic conditions at 30°C. Originate<br />
precipitates were removed from liquid phase by filtration and consequently<br />
used for the sorption experiments.<br />
Keywords: biosorbents, sulphate-reducing bacteria, heavy metals
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P047 Genotype Variability <strong>of</strong> Fatty Acids in Cereal<br />
Grains<br />
Dalibor Ješko, Milan Čertík<br />
Slovak Agricultural Research Centre – Research Institute <strong>of</strong> Plant Production Piešťany,<br />
Bratislavská 122, 921 68 Piešťany, Slovak Republic,<br />
email: jeskod@vurv.sk<br />
Cereals are important part <strong>of</strong> human and animal nutrition. Because lipids are<br />
essential compounds <strong>of</strong> cereal grains, this study was focused on genotype variability<br />
<strong>of</strong> fatty acid composition in following cereal grains: oat (85 varieties), millet (29<br />
varieties), amaranth (20 varieties) and buckwheat (10 varieties). Lipid amounts in<br />
investigated cereals varied between 1.5 to 8.2% and palmitic, oleic and linoleic acids<br />
are major fatty acids. Correlation between levels <strong>of</strong> oleic and linoleic acids indicated<br />
that activity <strong>of</strong> ∆ 12 − desaturase might be controlled genotypically. Variations in individual<br />
fatty acid levels also demonstrated deviation in biosynthesis stability <strong>of</strong><br />
these compounds in selected cereal genotypes. Fatty acid composition together with<br />
calculated fatty acid parameters <strong>of</strong>fers not only valuable taxonomic and physiologic<br />
information for classification <strong>of</strong> various cereal varieties, but also may be used by<br />
farmers and producers for aimed applications <strong>of</strong> cereals from the view <strong>of</strong> desired<br />
lipid attributes.<br />
Keywords: cereal grains, lipids, fatty acids<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P048 Preliminary Simultaneous Studies on the<br />
Antifungal Activity and Chemical Composition<br />
<strong>of</strong> the Hexane Extract <strong>of</strong> the Brazilian<br />
Chenopodium Ambrosioides L.<br />
2.<br />
Gulab Newandram Jham, Carolina Marangon Jardim,<br />
Onkar Dev Dhingra and Marcelo Moreira Freire<br />
Fedral Universsity <strong>of</strong> Virosa<br />
Department <strong>of</strong> Chemistry, Minas Gerais, 36571-000 Brazil,<br />
gulab@ufv.br<br />
Presently fungi that invade stored agricultural commodities are managed by<br />
synthetic compounds known to be harmful to man and environment and alternative<br />
control methods are urgently needed. The potential <strong>of</strong> plant extracts has been little<br />
studied. The antifungal activity <strong>of</strong> the hexane extract <strong>of</strong> the Brazilian epazote (Chenopodium<br />
ambrosioides L.) was evaluated by the poison food assay at concentrations<br />
<strong>of</strong> 0.1, 0.2 and 0.3% using four post-harvest deteriorating fungi (Aspergillus flavus,<br />
A. glaucus, A. niger and A. ochraceous). Depending upon the fungus, an inhibition <strong>of</strong><br />
26.2-100% was obtained. The following six compounds were identified in the crude<br />
extract by Kováts retention indexes (RIs) using GC (gas chromatography) and GC-<br />
MS (gas chromatography combined with mass spectrometry): α-terpinene (11.2),<br />
p-cymene (6.0), benzyl alcohol (0.4), (Z)-ascaridole (54.0), carvacrol (2.3) and (E)ascaridole<br />
(17.3).<br />
Keywords: Chenopodium ambrosioides; Essential oil
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P049 Evaluation <strong>of</strong> antioxidant and antimicrobial<br />
effects <strong>of</strong> natural honeys<br />
Miroslava Kačániová, Martina Fikselová, Soňa Felšöciová,<br />
Vladimíra Kňazovická, Katarína Fatrcová-Šrámková, Janka Nôžková<br />
Faculty <strong>of</strong> Biotechnology and Food Sciences, Slovak University <strong>of</strong> Agriculture,<br />
Tr. A.Hlinku 2, Nitra, 949 76 Slovakia,<br />
miroslava.kacaniova@uniag.sk<br />
The antioxidant activity and antimicrobial properties <strong>of</strong> 9 natural honeys were<br />
tested in this work. The antioxidant activity in term <strong>of</strong> their antiradical power was<br />
assessed by DPPH radical scavenging assay. Honey samples (8) were collected from<br />
different places <strong>of</strong> Slovakia and one sample originated from Rodos.<br />
Honeys were derived from different plant species <strong>of</strong> acacia (2 samples), rape (1<br />
sample), thyme (1 sample) and 5 samples were <strong>of</strong> floral origin. Samples were dissolved<br />
in ethanol (90 %). Results were expressed as % inhibition <strong>of</strong> DPPH radical.<br />
The best results were found at thyme honey from Rodos (11.84 %) and floral honeys<br />
from different places <strong>of</strong> Lučenec (10.09 %, 10.19 %). The lowest antiradical activity<br />
was determined at Acacia honey (7.615 %).<br />
The inhibitory action <strong>of</strong> honey samples was tested against Penicillium grise<strong>of</strong>ulvum,<br />
P. raistrickii, P. verrucosum, P. expansum and P. crustosum by the agar well diffusion<br />
method. Honey samples were tested after dilution to 50, 25 and 10 % (by mass<br />
per volume). The solutions containing 10 % (by mass per volume) <strong>of</strong> honey did not<br />
show any effect on the growth <strong>of</strong> fungi; some <strong>of</strong> honey samples had no inhibitory<br />
activity on any <strong>of</strong> the concentrations used.<br />
Keywords: antioxidants, antiradical activity, honey, antimicrobial activity,<br />
Penicillium genus<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P050 Combined Technique LC/MS in Analyses <strong>of</strong><br />
Antioxidant Compounds<br />
2. 0<br />
Radka Kočí, Marie Trčková, Lukáš Müller, Ivana Márová<br />
Department <strong>of</strong> Food Chemistry and Biotechnology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
koci-r@fch.vutbr.cz<br />
Antioxidants constitute a large group <strong>of</strong> plant and microbial secondary metabolites<br />
(for exemple carotenoids, phenolics, oligopeptides, saccharidic derivates etc.)<br />
with major interest because <strong>of</strong> their anti-inflammatory effects and <strong>of</strong> their potential<br />
anti-atherogenic properities. Many foods are good sources <strong>of</strong> antioxidants: vegetables,<br />
legumes, whole-grain cereals, tea extracts, honey etc. The best source <strong>of</strong> these<br />
physiologically active compounds with rapid effects on human health is represented<br />
by some sorts <strong>of</strong> fruit. Especially citrus fruit contain high-levels <strong>of</strong> phenolics and/or<br />
ascorbic acids, while apples are mostly consuming fruit with moderate amount <strong>of</strong><br />
antioxidants.<br />
Presented work was focused on characterisation <strong>of</strong> several substances (phenolics,<br />
carotenoids) with antioxidant activity containned in select biologic materials<br />
and on their distribution in individual sample fractions (juice, pulp, peel). Antioxidant<br />
compounds were isolated i) by ethylacetate extraction and/or by acetone<br />
extraction; ii) using SPE method. Analyses were realised with combined technique<br />
HPLC/MS on-line and/or <strong>of</strong>f-line, eventually compared with UV-VIS detection.<br />
Keywords: phenolics, carotenoids, LC-ESI/MS, SPE
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P051 Influence <strong>of</strong> Chemical Treatment on Fusarium<br />
Toxins in Barley Harvested 2005-2007<br />
Jana Kohoutková, Kateřina Lancová, Alexandra Krplová, Ondřej Lacina,<br />
Jana Hajšlová, Jana Marková, Jaroslava Ehrenbergerová<br />
Institute <strong>of</strong> Chemical Technology, Pratur<br />
Department <strong>of</strong> food chemistry and analysis<br />
Technická 5, 166 28 Prague 6, Czech Republic,<br />
Jana.kohoutkova@vscht.cz<br />
Mycotoxins are toxic secondary metabolites produced by certain toxigenic microscopic<br />
fungi in various crops used as raw materials for the production <strong>of</strong> foodstuffs<br />
and fodder. Fusarium toxins have been shown to cause a variety <strong>of</strong> toxic effects<br />
(both acute and chronic) in humans and animals (vomiting, dermal irritation,<br />
haemorragic lesions, weight reduction, etc.).<br />
The main objective <strong>of</strong> this study was to investigate the influence <strong>of</strong> key agricultural<br />
practices (resistance <strong>of</strong> barley cultivars, chemical treatment use, pre-crop<br />
and different growing locality) on Fusarium mycotoxins in barley. Field trials were<br />
realized in cooperation with the Agricultural Research Institute Kroměříž (harvest<br />
2005, 2006 and 2007).<br />
For the determination <strong>of</strong> the most important Fusarium mycotoxins (deoxynivalenol,<br />
HT-2 toxin, T-2 toxin, zearalenone, nivalenol, 15-acetyldeoxynivalenol, fusarenon-X<br />
and 3-acetyldeoxynivalenol), high-performance liquid chromatography<br />
coupled with tandem mass spectrometry (LC-MS/MS) was used.<br />
The trueness <strong>of</strong> the generated data was successfully demonstrated in pr<strong>of</strong>iciency<br />
tests (Food Analysis Performance Assessment Scheme, FAPAS ® ) organized by<br />
Central Science Laboratory (CSL, York, UK).<br />
Keywords: mycotoxins, DON, Barley<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P052 Monitoring <strong>of</strong> Acrylamide in Foods : “The<br />
Project on Dietary Exposure <strong>of</strong> the Czech<br />
Population to Selected Chemical Substances”<br />
2. 2<br />
J. Kolářová, S. Saláková, I. Řehůřková, J. Ruprich<br />
National Institute <strong>of</strong> Public Health – Centre for Hygiene <strong>of</strong> Food Chains,<br />
Palackého 3a, 612 42 Brno, Czech Republic,<br />
kolarova@chpr.szu.cz<br />
Acrylamide is an industrial chemical used as a chemical intermediate in the<br />
production <strong>of</strong> polyacrylamides, which are used as flocculants for clarifying drinking<br />
water and industrial applications. Experimental studies with acrylamide in animals<br />
have shown reproductive, genotoxic and carcinogenic properties. The Swedish<br />
National Food Authority reported on elevated levels <strong>of</strong> acrylamide in heat-treated<br />
potato products and baked goods in April 2002.<br />
Since 2004, content <strong>of</strong> acrylamide has been monitored within the framework<br />
<strong>of</strong> “The Project on Dietary Exposure <strong>of</strong> the Czech Population to Selected Chemical<br />
Substances” carried out by the Centre for the Hygiene <strong>of</strong> Food Chains in Brno with<br />
the objective to describe the dietary exposure <strong>of</strong> the Czech population to chemical<br />
substances.<br />
The monitoring <strong>of</strong> acrylamide is performed in the foods starch – containing.<br />
The samples undergo the culinary treatment so that they are analysed in the same<br />
state as they are consumed.<br />
The analytical procedure consists <strong>of</strong> isolation acrylamide from a matrix and <strong>of</strong><br />
brom derivatisation <strong>of</strong> acrylamide with consecutive analyse using GC-MS method.<br />
The highest content <strong>of</strong> acrylamide was found in the potato crisps (271–3817<br />
μg/kg), french fries (až 705 μg/kg) and spice (147–1076 μg/kg).<br />
Keywords: acrylamide, monitoring, foods, GC-MS
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P053 Trans Fatty Acids in Diet <strong>of</strong> the Czech<br />
Population During year 2007<br />
J. Kolářová, J. Hradilová, I. Řehůřková, J. Ruprich, S. Saláková,<br />
D. Pečinková<br />
National Institute <strong>of</strong> Public Health, Centre for the Hygiene <strong>of</strong> Food Chains,<br />
Palackého 3a, 612 42 Brno, Czech Republic,<br />
hradilova@chpr.szu.cz<br />
Trans fatty acids (TFA) are formed in technological and microbiological processes<br />
by isomerization <strong>of</strong> cis double bonds to trans double bonds. Small amounts<br />
<strong>of</strong> trans fat are produced in the rumen <strong>of</strong> ruminants and found in dairy and beef<br />
fat. Trans fat are predominately produced through a process called partial hydrogenation.<br />
TFA increase the risk <strong>of</strong> coronary heart disease and <strong>of</strong> other chronic health<br />
problem (cancer, diabetes, obesity, interfility).<br />
The National Institute <strong>of</strong> Public Health in Prague, Centre for the Hygiene <strong>of</strong><br />
Food Chains in Brno is involved in “The Project on Dietary Exposure to Selected<br />
Chemical Substances”. The objective <strong>of</strong> the project is to describe the dietary exposure<br />
<strong>of</strong> the population <strong>of</strong> the Czech Republic to chemical substances. In the framework<br />
<strong>of</strong> this project fatty acids have been monitored since 2005. Fatty acids were<br />
determined in food samples in the full range consumed by the Czech population.<br />
The analytical procedure consists <strong>of</strong> the three steps – extraction <strong>of</strong> the triacylglycerols<br />
from the matrix, saponification and ester interchange and finally analysis<br />
using the GC – FID method.<br />
The highest concentrations <strong>of</strong> TFA were found in gingerbread, wafers and biscuits.<br />
Very low concentration <strong>of</strong> TFA were found in pork liver, sea fish, flour and<br />
cocoa.<br />
Key words: trans fatty acids, foodstuffs, GC – FID<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P054 The Monitoring <strong>of</strong> Dietary Exposure <strong>of</strong> Czech<br />
Population to Persistent Organic Pollutants<br />
2.<br />
Jana Kolářová, Sylva Saláková, Irena Řehůřková, Jiří Ruprich<br />
National Institute <strong>of</strong> Public Health in Prague, Centre for Hygiene <strong>of</strong> Food Chains<br />
Palackého 3a, 612 42 Brno, Czech Republic<br />
salakova@chpr.szu.cz<br />
Persistent organic pollutants ( POPs) are organic compounds that are resistant<br />
to environmental degradation through chemical, biological and photolytic processes.<br />
They are highly persistent, lipophilic and bioaccumulative industrial contaminants.<br />
POPs accumulate in fat <strong>of</strong> organisms. Some <strong>of</strong> them are classified as possible<br />
human carcinogens. Therefore, for many years, POPs are controlled substances as<br />
contaminants in our environment.<br />
Within The Project on Dietary Exposure to Selected Chemical Substances 37<br />
POPs was monitored.<br />
POPs were determined in food samples <strong>of</strong> the so-called food basked <strong>of</strong> the<br />
Czech population.<br />
The food samples are first culinary treated so that they could be analysed in<br />
the same stage as they are consumed. The result <strong>of</strong> the preanalytical treatment is a<br />
homogenous sample, which is then analysed. The first step <strong>of</strong> the sample preparation<br />
is an extraction. After extraction the samples are cleaned by usage the GPC<br />
method. Last step <strong>of</strong> sample preparation is the column chromatography. Cleaned<br />
samples are then analysed by GC chromatography on two columns system with<br />
ECD detectors.<br />
We analysed 110 samples <strong>of</strong> foodstuffs per one year. The highest content <strong>of</strong><br />
POPs was observed in meat products, butter and milk products and fish. The nonfat<br />
samples are logically less contamined group for this analytes.<br />
Keywords: persistent organic pollutants , gas chromatography
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P055 Occurrence <strong>of</strong> Fusarium Mycotoxins and their<br />
Conjugated Forms in Cereal-based Foods<br />
Marta Kostelanská, Jana Hajšlová, Milena Zachariášová,<br />
Alexandra Krplová, Jan Poustka, Jana Kohoutková<br />
Institute <strong>of</strong> Chemical Technology, Prague, Faculty <strong>of</strong> Food and Biochemical Technology,<br />
Department <strong>of</strong> Food Chemistry and Analysis<br />
Technická 3, 166 28 Prague 6 – Dejvice, Czech Republic<br />
marta.kostelanska@vscht.cz<br />
Trichothecene mycotoxins, toxic secondary metabolites produced by a fungi<br />
species <strong>of</strong> the genus Fusarium, can adversely affect animal and human health. Cereals<br />
are frequently infected by these molds in the field world-wide. One <strong>of</strong> the most<br />
abundant fusariotoxin is deoxynivalenol (DON). Recently, it has been shown, that<br />
in addition to its native form, DON can be also found in plants conjugated to glucose.<br />
In presence, great scientific effort is spent to monitor both above mentioned<br />
compounds.<br />
With regard to high consuption <strong>of</strong> cereal-based products, the control <strong>of</strong> mycotoxins<br />
levels in this type <strong>of</strong> foodstuffs is a food safety issue <strong>of</strong> high importance. It<br />
is essential to understand both the primary cereals contamination and influence <strong>of</strong><br />
processing on the mycotoxins levels in final products.<br />
In this presentation, the influence <strong>of</strong> technological process on both absolute<br />
levels and mutual ratios <strong>of</strong> DON and D3G in bread and beer will be presented and<br />
dynamic changes <strong>of</strong> mycotoxins concentrations during each technological step will<br />
be disscused. Moreover, the validation <strong>of</strong> HPLC-MS/MS method used to obtain experimental<br />
data will be described.<br />
Keywords: mycotoxins, bread, beer, HPLC-MS/MS<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P056 Lignans in Flaxseeds – LC-MS/MS Determination<br />
2.<br />
Anna Krajcova, Vera Schulzova, Jana Hajslova, Zuzana Zakova,<br />
Marie Bjelkova<br />
Department <strong>of</strong> Food Chemistry and Analysis<br />
Faculty <strong>of</strong> Food and Biochemical Technology,<br />
ICT Pratur Technicka 5, 166 28 Prague 6<br />
anna.krajcova@vscht.cz<br />
Lignans are phytoestrogens widely distributed in the plant kingdom. They<br />
have been suggested to induce a wide range <strong>of</strong> biological effects, such as antitumor,<br />
both estrogenic and antiestrogenic activities etc. Antioxidant potential has also been<br />
documented for many representatives <strong>of</strong> this group. One <strong>of</strong> the reachest dietary<br />
source <strong>of</strong> lignans are flaxseeds, with glycosides <strong>of</strong> secoisolariciresinol (SECO) and<br />
matairesinol (MAT) as the major components.<br />
In this study, a quantitative method for the determination <strong>of</strong> plant lignans<br />
SECO and MAT in flaxseed is presented. The analytical procedure involves enzymatic<br />
hydrolysis (β-glucuronidase/sulfatase) <strong>of</strong> defatted milled flaxseeds, cyclohexane:ethylacetate<br />
extraction, and, subsequently separation and detection employing<br />
LC-MS/MS. Wide range <strong>of</strong> flaxseed samples was examined to assess the influence<br />
<strong>of</strong> various factors such as variety, way <strong>of</strong> farming etc. on the content <strong>of</strong> SECO and<br />
MAT.<br />
Keywords: flaxseed, lignan
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P057 The Occurence <strong>of</strong> PhthalicAcid Esters in<br />
Selected Feedstuffs<br />
Lenka Krátká, Alžbeta Jarošová, Jana Malyszová, Vlasta Stancová,<br />
Jiří Harazim<br />
Mendelova zemědělská a lesnická univerzita Brno<br />
Zemědělská 1, 613 00, Brno<br />
krtaska@seznam.cz<br />
Samples <strong>of</strong> feedstuffs, feed additives and premixes for livestock were collected<br />
by ÚKZUZ (Central Agricultural Control and Testing Institute). They were collected<br />
in years 2005 and 2006. Feeds were analysed for phthalic acid esters – di-n-butyl phthalat<br />
(DBP) and di-2-ethylhexyl phthalat (DEHP). Total phthalates (ΣDBP+DEHP)<br />
measured in 2005 reached levels from 2,03 mg.kg -1 (corn) to 131,42 mg.kg -1 (soybean<br />
oil). High levels were contained in animal fat (58,87 mg.kg -1 ) a feed additive Alimet-methionine<br />
(38,36 mg.kg -1 ). Feedstuffs were richer for PAEs. In 2006, levels <strong>of</strong><br />
ΣDBP+DEHP ranged between 0,12 mg.kg -1 (Vitamin A) and 4,52 mg.kg -1 (Alimetmetionine),<br />
feedstuffs contained higher levels <strong>of</strong> PAEs, from 0,04 mg.kg -1 (wheat) to<br />
23,87 mg.kg -1 ΣDBP+DEHP (rapeseed oil). The highest levels were determinated in<br />
raw materials with fat matrix, so the lipophilic character <strong>of</strong> PAEs was confirmed.<br />
Samples <strong>of</strong> oils A, B, C were collected in 2007. Oils B and C were stored in plastic<br />
barrel. Levels <strong>of</strong> ΣDBP+DEHP reached in A from 5,14 mg.kg -1. to 10,13 mg.kg -1 . . Total<br />
phthalates in oils C were contained in levels from 31,12 mg.kg -1. to 61,55 mg.kg -1 ..<br />
Study confirmed, that PAEs can easily migrate from platics to fat.<br />
This study was carried out within the scope <strong>of</strong> project NAZV 234/2202/MZ260041,<br />
supported by the Department <strong>of</strong> Agriculture, Res. & Dev., Czech Republic..<br />
Keywords: phthalates, feedstuffs<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P058 New Approach in Analysis <strong>of</strong> Fusarium<br />
Mycotoxins and their “Masked” Forms:<br />
Immunoaffinity Column Clean-up<br />
2.<br />
A. Krplova, A. Kostelanska, M. Zachariasova, J. Hajslova and<br />
J. Kohoutkova<br />
Institute <strong>of</strong> Chemical Technology Prague,<br />
Technická 5, 166 28 Prague 6 – Dejvice, Czech Republic<br />
alexandra .krplova@vscht.cz<br />
Deoxynivalenol-3-glucoside (D3G) has been recently found in high amounts in<br />
beer and other fermented cereal-based products. Presence <strong>of</strong> “masked” mycotoxins<br />
was detected in unprocessed cereals as well. Analysis <strong>of</strong> mycotoxins in single run<br />
is complicated due to differences in polarity between parent deoxynivalenol (DON)<br />
and its glycosilated derivates.<br />
Immunoaffinity clean up application improved performance characteriristics<br />
<strong>of</strong> liquid chromatography with tandem mass spectrometry (LC-MS/MS). Commerical<br />
columns antibodies cross reactivity enables antibodies binding with “masked”<br />
mycotoxins, significantly decreases matrix interferences during detection and so<br />
improves analysis performance. Immunoaffinity columns specific for several fusariotoxins<br />
(DON, HT-2 and T-2 toxin, zearalenon) from various suppliers were tested.<br />
Differences in antibodies function were documented.<br />
Keywords: deoxynivalenol, deoxynivalenol-3-glucoside,<br />
immunoaffinity columns, Fusarium
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P059 The effect <strong>of</strong> cell adhesion on polutant<br />
biodegradation<br />
Tereza Krulikovská , Olga Schreiberová, Jitka Hrdinová<br />
Jan Masák, Alena Čejková, Vladimír Jirků<br />
Institute <strong>of</strong> Chemical Technology Prague,<br />
Department <strong>of</strong> Fermentation Chemistry and Bioengineering<br />
Technicka 5, 166 28 Prague, Czech Republic<br />
tereza.krulikovska@vscht.cz<br />
The unicellular microorganisms naturally form multicellular communities<br />
which differentiate into specialize cells that bring a benefit to whole population.<br />
Predominant multicultural form <strong>of</strong> bacteria is called bi<strong>of</strong>ilm. Bacterial bi<strong>of</strong>ilms are<br />
generally described as surface associated community consisting <strong>of</strong> microcolonies<br />
surrounded by a matrix <strong>of</strong> exopolymers with varied composition. The characteristics<br />
<strong>of</strong> bi<strong>of</strong>ilm which are in focus <strong>of</strong> present research are the ability to withstand and<br />
degrade high concentration <strong>of</strong> various toxic substances.<br />
Gram-positive Rhodococcus erythropolis was chosen for our experiments. Bacteria<br />
were cultivated in mineral medium under different cultivation conditions. A several<br />
toxic substances were used as a sole carbon source (e.g.: phenol, aniline, catechol).<br />
The ability <strong>of</strong> bacterial cell to adhere on different polymer materials was tested by<br />
several methods: colorimetric method (staining and distaining <strong>of</strong> sessile cells with<br />
crystal violet), microscopic observation (fluorescent and confocal microscopy). The<br />
biodegradation <strong>of</strong> various pollutants by cells adhered to different polymer carriers<br />
were determined by HPLC.<br />
Keywords: polutant biodegradation, bi<strong>of</strong>ilm, Rhodococcus erythropolis<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P060 Categorization <strong>of</strong> Olive Oils<br />
2. 0<br />
Dáša Kružlicová, Ján Mocák, Ernst Lankmayr<br />
Department <strong>of</strong> Chemistry<br />
University <strong>of</strong> Ss. Cyril & Methodius, SK-91701 Trnava, Slovakia<br />
jan.mocak@ucm.sk<br />
Olive oil is an important food component, which enjoys increasing popularity<br />
in many countries not only due to its delicate taste but also because <strong>of</strong> its nutrition<br />
value. Depending on regional conditions a variety <strong>of</strong> oils are produced in different<br />
qualities.<br />
193 olive oil samples <strong>of</strong> five different olive oil types determined for consumer<br />
market have been characterized by the UV-Vis spectra. Absorbances at 2001 wavelengths<br />
were measured in the range <strong>of</strong> 230-700 nm. Chemical characteristics - acidity,<br />
peroxide value, and the oxidation indicators K232 a K237 were also measured.<br />
The sensory evaluation <strong>of</strong> the investigated oil samples was made in a ten-point scale<br />
by the experienced panel <strong>of</strong> experts. This panel rated several properties <strong>of</strong> the oils,<br />
especially smell, taste and visual character. In addition, the presence <strong>of</strong> water was<br />
thoroughly checked since a colloidal mixture <strong>of</strong> water and residual proteins remarkably<br />
affects (diminishes) the oil quality. Three basic classes <strong>of</strong> oils, expressing the oil<br />
quality, were created: highest quality - with the score 7-9 points, medium quality<br />
(4-6 points) and low quality (1-3 points).<br />
Classification <strong>of</strong> the examined oils was achieved by chemometrical data processing,<br />
by which prediction <strong>of</strong> two oil characteristics are possible: (a) the oil origin, (b)<br />
the oil quality. Four methods <strong>of</strong> discriminant analysis and artificial neural networks<br />
were used for this purpose. The applied approach does not depend on chemical<br />
standards, is relatively cheap but requires a fair-size calculation effort.<br />
Acknowledgement: The support <strong>of</strong> this work by the grants VEGA 1/3584/06<br />
and APVV-0057-06 is highly acknowledged.<br />
Keywords: olive oil, sensorial evaluation, classification
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P061 The Proteomic Analysis <strong>of</strong> Barley Albumins And<br />
Globulins<br />
Markéta Laštovičková and Janette Bobáľová<br />
Institute <strong>of</strong> Analytical Chemistry,v.v.i, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic,<br />
602 00 Brno, Veveří 97, Czech Republic;<br />
lastovickova@iach.cz<br />
A systematic analysis <strong>of</strong> selected barley (Hordeum vulgare) proteins and glycoproteins<br />
by is reported here.<br />
For this purpose, the flour from the malted barley variety Jersey was chosen.<br />
The different extracts (aqueous, ethanol, salt, TRIS buffers, etc.) <strong>of</strong> barley proteins<br />
were compared. Optimized 1-D GE analyses (on 12.5 % SDS gels) revealed the differences<br />
between the protein patterns <strong>of</strong> individual barley extracts.<br />
The mixture <strong>of</strong> albumins (water-soluble proteins) and globulins (proteins soluble<br />
in diluted saline solutions) were selected for the detailed investigation. The extract<br />
was subjected to the separation procedure including Concanavalin A (Con A)<br />
affinity chromatography, 1-D or 2-D gel electrophoresis and set <strong>of</strong> desalting and purification<br />
steps. Both proteins included in Con A non-bound fraction and enriched<br />
N-glycoproteins in Con A bound fraction were characterized by the combination <strong>of</strong><br />
MALDI-TOF mass spectrometry and bioinformatics. Many important barley proteins<br />
were identified.<br />
Acknowledgement: This work was supported from the Ministry <strong>of</strong> Education,<br />
Youth and Sports, Czech Republic (Research Centre for the Study <strong>of</strong> Extract Compounds<br />
<strong>of</strong> Barley and Hop No. 1M0570), and Research Plan <strong>of</strong> Institute <strong>of</strong> Analytical<br />
Chemistry, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic (AV0Z40310501).<br />
Keywords: barley, mass spectrometry, proteomics<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P062 Comparative Study <strong>of</strong> The Protein Composition<br />
Induced By Malting <strong>of</strong> Two Barley Varieties<br />
2. 2<br />
Markéta Laštovičková, Martina Šopíková, and Janette Bobáľová<br />
Institute <strong>of</strong> Analytical Chemistry v.v.i., Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic,<br />
602 00 Brno, Veveří 97, Czech Republic;<br />
lastovickova@iach.cz<br />
Gel electrophoresis (GE) in combination with mass spectrometry (MS) was used<br />
for the description <strong>of</strong> changes in protein pr<strong>of</strong>ile during malting. Since the composition<br />
and amount <strong>of</strong> water-soluble proteins have crucial influence on the suitability<br />
<strong>of</strong> grains for its final uses, they were selected as an indicator <strong>of</strong> changes. The barley<br />
(Hordeum Vulgare) samples were taken in the course <strong>of</strong> malting from two varieties:<br />
Jersey and KM. The experimental conditions for 1-D GE were optimized. The special<br />
attention was focused on the choice <strong>of</strong> gel type and kind <strong>of</strong> staining (Coomassie<br />
brilliant blue R, Coomassie brilliant blue G, silver). 1-D SDS gels revealed the qualitative<br />
changes <strong>of</strong> protein pr<strong>of</strong>ile. Some <strong>of</strong> the protein bands disappeared and some<br />
others arose or were modified during malting. MALDI-TOF MS was used for the<br />
identifications <strong>of</strong> these proteins.<br />
Acknowledgement: This work was supported by the Research Centre for Study<br />
<strong>of</strong> Extract Compounds <strong>of</strong> Barley and Hop No. 1M0570 from Ministry <strong>of</strong> Education,<br />
Youth and Sports <strong>of</strong> the Czech Republic and Research Plan <strong>of</strong> Institute <strong>of</strong> Analytical<br />
Chemistry, Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic (AV0Z40310501).<br />
Keywords: 1-D gel electrophoresis, proteins, malting, barley
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P063 fatty acids like markers <strong>of</strong> processed cheese<br />
changes during storage<br />
Blanka Loupancová, Eva Vítová, Hana Štoudková, František Buňka<br />
Institute <strong>of</strong> Food Science and Biotechnology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno<br />
blankaloupancova@seznam.cz<br />
Although the dairy products fall into the class <strong>of</strong> so called non-acid foodstuffs<br />
and suitable methods must be used to prolong their durability, the processed cheese<br />
was proposed as a part <strong>of</strong> Combat Ratio. The Combat Ratio serves for nutrition<br />
<strong>of</strong> soldiers in specific combat situations such as separation from a unit, battle, etc.<br />
There are special requirements for a minimum durability <strong>of</strong> individual components<br />
<strong>of</strong> Combat Ration which has been set as 24 months depending on an ambient temperature.<br />
Practically the only method <strong>of</strong> achieving the 24 month durability <strong>of</strong> processed<br />
cheese is the thermo-sterilization. In the article the effect <strong>of</strong> a defined sterilization<br />
heating and storage conditions, such as temperature and time, on changes <strong>of</strong> fatty<br />
acids contents in sterilized processed cheese was investigated.<br />
Processed cheeses were stored at 6 ± 2 °C, 23 ± 2 °C and 40 ± 2 °C. The most<br />
abundant fatty acids such as lauric, myristic, palmitic, stearic and oleic acid were<br />
elected like markers <strong>of</strong> changes during storage. The differences between amounts<br />
<strong>of</strong> this fatty acids depended <strong>of</strong> the storage temperature and time <strong>of</strong> storage were<br />
observed in this experiment.<br />
We can conclude that the storage conditions significantly influence the content<br />
<strong>of</strong> individual fatty acids in cheeses. The contents <strong>of</strong> fatty acids in cheeses decreased<br />
as the consequence <strong>of</strong> longer time and higher temperature <strong>of</strong> storage. This fact can<br />
be probably caused by oxidation reactions <strong>of</strong> cheese fat.<br />
Keywords: Processed cheese, fatty acids (optional)<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P064 Determination <strong>of</strong> Selected Antioxidant Enzymes<br />
in Barley and Malt<br />
2.<br />
S. Macuchová, I. Márová, R. Mikulíková<br />
Research Institute <strong>of</strong> Brewing and Malting, Plc.<br />
Mostecká 7, 614 00 Brno<br />
macuchova.s@seznam.cz<br />
Presence <strong>of</strong> Reactive Oxygen Species (ROS) negatively affects the sensory stability<br />
<strong>of</strong> beer, thus, final quality <strong>of</strong> beer is related to its antioxidant activity. Antioxidant<br />
content in beer is substantially dependent on anti-oxidative activity <strong>of</strong> the primary<br />
raw materials – barley and malt. In barley antioxidants prevent the undesirable and<br />
generally negative changes <strong>of</strong> grain quality during the cropping and stocking. Generally,<br />
antioxidants can act against ROS by radical trapping, by inhibition <strong>of</strong> their<br />
formation or by decreasing <strong>of</strong> their effects. Complex antioxidant system acts as a<br />
well-coordinated complex <strong>of</strong> low molecular weight- and enzyme antioxidants. In<br />
barley antioxidant enzymes are represented mainly by superoxide dismutase, catalase<br />
and peroxidase.<br />
In this work, influence <strong>of</strong> selected biological and chemical factors on enzyme<br />
antioxidant activity and total anti-oxidative capacity in barley and malt were studied.<br />
As a part <strong>of</strong> this work extraction, optimalization and simplification <strong>of</strong> methods<br />
for determination <strong>of</strong> antioxidant enzyme activity were tested. Finally, changes <strong>of</strong><br />
enzyme activities in barley and malt according to the barley sort and cultivation<br />
conditions were evaluated.<br />
Keywords: antioxidants, barley
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P065 Fat content and its quality in rapeseed<br />
(Brassica napus l) during storage<br />
Ján Mareček, Martina Fikselová, Helena Frančáková, Zdenka Muchová<br />
Department <strong>of</strong> Plant Processing and Storage, Faculty <strong>of</strong> Biotechnology and Food Sciences, Slovak<br />
University <strong>of</strong> Agriculture, Tr. A.Hlinku 2, Nitra, 949 76 Slovakia, e-mail : Jan.Marecek@<br />
uniag.sk<br />
The aim <strong>of</strong> this work was to evaluate the fat content and its quality <strong>of</strong> rapeseed<br />
during the storage. Rapeseed was stored in steel silo during 10 months. Results are<br />
presented from 3 years <strong>of</strong> observations (2004–2006).<br />
Determined parameters <strong>of</strong> the quality were the contents <strong>of</strong> dry matter, fat, peroxide<br />
value, iodine value, acid value, thiobarbituric value. Fatty acids representation<br />
was determined as follows: myristic, palmitic, palmitoleic, stearic, oleic, linoleic,<br />
linolenic, arachidonic, behenic and erucic.<br />
Mean dry matter content during period ranged from 94.34- 94.81 %. Fat content<br />
during observed period ranged from 43.11-45.52 %. The highest fat content was determined<br />
at the year 2004. At each year demand on fat content required by Slovak<br />
Technical Standard was achieved. Peroxide value determined in rapeseed oil was<br />
optimal (1.97- 3.58 mmol O 2 .kg -1 ). Acid value was higher at year 2006 (2.22 mg KOH.<br />
g -1 ), higher content <strong>of</strong> free fatty acids can cause problems with refining. Thiobarbituric<br />
value was optimal. We can conclude that during observed years were not found<br />
any important oxidative changes in fat <strong>of</strong> rapeseed, seems due to optimal conditions<br />
during the storage. The highest representation within the fatty acids was found at<br />
oleic acid (61.58 %), linolic acid (24.12 %) and linolenic (6.69 %). Mean content <strong>of</strong><br />
erucic acid was low (0.399 %).<br />
Keywords: storage, rapeseed, fat quality, fatty acids, oxidation<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P066 Analysis <strong>of</strong> Active Substances in Honey – a<br />
Contribution to Honey Authenticity<br />
2.<br />
Ivana Márová, Zuzana Jelénková, Kateřina Duroňová, Petra Ždánská,<br />
Veronika Ehrenbergerová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry ,<br />
Department <strong>of</strong> Food Chemistry and Biotechnology,<br />
Purkyňova 118, 612 00 Brno<br />
marova@fch.vutbr.cz<br />
Honey belongs to the oldest delicacies <strong>of</strong> natural origin. Moreover, honey contains<br />
many biologically active substances with positive effect on human health. This<br />
work was focused on study <strong>of</strong> antioxidant content, enzyme activities, protein and<br />
saccharide composition in 16 sorts <strong>of</strong> honey, which differed in geographical and<br />
botanical origins. To qualitative as well as quantitative analysis <strong>of</strong> individual lowmolecular<br />
weight antioxidants RP-HPLC/UV-VIS and LC/MS were used. Antioxidant<br />
activity was measured by Randox kit, antimutagenic proteprties by S.cerevisiae<br />
D7 test system. Proteins were analyzed by 1D micr<strong>of</strong>luidic system Experion, saccharides<br />
by HPLC/RI. Nine flavonoid aglycones were analyzed by HPLC, differend<br />
conditions were used in order to optimize the detection <strong>of</strong> those flavonoids which<br />
could be considered as markers <strong>of</strong> the floral origin <strong>of</strong> honey. Significant differences<br />
between individual sorts <strong>of</strong> honey were found especially in 5-hydroxymethyl furfural<br />
content. According to our findings, a set <strong>of</strong> parameters for honey authenticity<br />
and quality was proposed.<br />
Keywords: honey, antioxidants, 5-hydroxymethyl furfural
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P067 Antioxidant and Antimutagenic Activity<br />
<strong>of</strong> Dried Fruit, Fruit Teas and Cereal Fruit<br />
Products<br />
Ivana Márová, Michaela Barošová, Martina Tomková,<br />
Hedvika Vondráčková, Kateřina Duroňová, Radka Kočí<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry ,<br />
Department <strong>of</strong> Food Chemistry and Biotechnology,<br />
Purkyňova 118, 612 00 Brno<br />
marova@fch.vutbr.cz<br />
This work was focused on study <strong>of</strong> antioxidant content and antimjutagenic<br />
properties <strong>of</strong> 16 sorts <strong>of</strong> dried fruit, 5 types <strong>of</strong> fruit teas and 5 types <strong>of</strong> herbal teas<br />
and also in 10 kinds <strong>of</strong> fruit müsli products. Modern analytical and separation techniques<br />
were used for analysis <strong>of</strong> active substances. Total phenolics and total flavonoids<br />
were analyzed spectrophotometrically. To qualitative as well as quantitative<br />
analysis <strong>of</strong> individual flavonoids high-performance liquid chromatography on reverse<br />
phase with spectrophotometric detection (RP-HPLC/UV-VIS) and LC/MS was<br />
used. Antioxidant activity was measured by Total antioxidant status kit (Randox).<br />
Antimutagenic effect was analyzed using Saccharomyces cerevisiae D test strain. In<br />
cereals also saccharide content by HPLC/RI was analyzed.<br />
The results show that antioxidant content in dried fruit is relatively high; the<br />
main contributing derivatives were flavonoids and carotenoids. Total phenolics content<br />
is higher in herbal teas when compared with fruit teas. From individual flavonoids<br />
catechin was the most abundant derivative found in most <strong>of</strong> analyzed herbal<br />
teas, the lowest amount exhibited quercetin and morin. Cereal products containing<br />
dried fruits differed in antioxidant levels according to fruit type. As the part <strong>of</strong> this<br />
work basic sensory analysis <strong>of</strong> fruits and cereals was realized.<br />
Keywords: dried fruits, musli, fruit tea, herbal tea<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P068 Charactzerization <strong>of</strong> „Czech Beer“ – a Pilot<br />
Study<br />
2.<br />
Ivana Márová, Renata Mikulíková, Zbyněk Zdráhal, Hana Konečná,<br />
Kateřina Pařilová, Andrea Halienová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry ,<br />
Department <strong>of</strong> Food Chemistry and Biotechnology,<br />
Purkyňova 118, 612 00 Brno<br />
marova@fch.vutbr.cz<br />
The aim <strong>of</strong> presented work is development <strong>of</strong> modern techniques to qualitative<br />
and quantitative analysis <strong>of</strong> some characteristic components <strong>of</strong> Czech beer. One <strong>of</strong><br />
the main goals is separation and analysis <strong>of</strong> specific proteins and peptide fragments<br />
and changes <strong>of</strong> their content during beer processing. Based on analysis <strong>of</strong> barley<br />
variety purity using standard 1D PAGE-SDS detailed characteristics <strong>of</strong> proteins by<br />
micr<strong>of</strong>luidic techniques, 2D-electrophoresis, LC/ESI-MS, LC/MS/MS was tested.<br />
Further aim was qualitative and quantitative analysis <strong>of</strong> individual phenolics in<br />
Czech beer by chromatographic techniques (RP-HPLC, LC/MS). In next part volatile<br />
and bitter substances will be analyzed by gas chromatography connected with<br />
mass spectrometry techniques in beer and brewing intermediates. All analyses will<br />
be performed in several kinds <strong>of</strong> Czech beer in comparison with beers processed by<br />
different technology. All results will be compared to obtain a set <strong>of</strong> parameters suitable<br />
to final characterization <strong>of</strong> Czech beer. This set could be used in food control to<br />
authenticity assesment <strong>of</strong> Czech beer. Finally, proposed general strategy <strong>of</strong> parameter<br />
complex analysis could be applicated to beverages authenticity assesment.<br />
Keywords: Czech beer, proteomics, phenolics
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P069 Tocopherol and Fatty Acid Contents <strong>of</strong> Selected<br />
Romanian Cereal Grains<br />
Cristian Tudor Matea, Ioan Has, Simona Ifrim, Constantin Bele<br />
University <strong>of</strong> Agricultural Science and Veterinary Medicine ,<br />
R- 400372, Cluj-Napoca , Romania<br />
a 2 01@yahoo.com<br />
HPLC and GC methods were used for the analysis <strong>of</strong> tocopherols ( α-, γ- and<br />
δ- ) and fatty acids in 18 selected Romanian cereal grain varietes ( wheat, maize and<br />
oat ). For the determination <strong>of</strong> tocopherols , the samples were saponified with KOH<br />
at 100 0 C followed by extraction with hexane : ethyl ether (7:3 ).An Alltima C18 (<br />
5 μm ) and acetonitrile : methanol 50:50 mobile phase were used with fluorescence<br />
detection. Fatty acids were analyzed using a GC- FID and a capilary column Alltech<br />
AT-WAX. The richest sources <strong>of</strong> tocopherols were wheat varietes ( 0,72—1,45 mg<br />
% ). Total unsaturated fatty acids ( UFA ) ranged from 72-86 % with linolenic, oleic<br />
and palmitic acid predominant for the maize varities.Total UFA ranged from 57-68<br />
% for wheat varities and the same predominant fatty acids .<br />
Keywords: Tocopherols; Fatty acids ; Cereal whole grain<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P070 Monitoring <strong>of</strong> Barley Starch Amylolysis by<br />
Gravitational Field Flow Fractionation and<br />
MALDI-TOF/TOF MS<br />
2. 0<br />
Karel Mazanec and Janette Bobáľová<br />
Institute <strong>of</strong> Analytical Chemistry, AS CR, v.v.i.<br />
Veveří 97, Brno 602 00, Czech Republic<br />
mazanec@iach.cz<br />
In barley, starch occurs in form <strong>of</strong> granules with bimodal size distribution. Enzymatic<br />
starch granule hydrolysis is one <strong>of</strong> the most important reactions occurring<br />
during malting and mashing. In this study, the capacity <strong>of</strong> gravitational field flow<br />
fractionation (GFFF) to monitor the amylolysis <strong>of</strong> starch granules was investigated.<br />
Isolated starch granules from barley cultivars were treated with amylases. The<br />
changes in the starch granule size and the bimodal distribution were studied by<br />
GFFF. Simultaneously, the free sugars released during enzymatic digestion were<br />
observed by MALDI-TOF/TOF MS. The fractogram changes along with the changes<br />
in mass spectra reflect a correlation with the progress <strong>of</strong> enzymatic hydrolysis. The<br />
results show the interest in utilization <strong>of</strong> GFFF as a simple and cheap method for<br />
monitoring <strong>of</strong> changes <strong>of</strong> starch granule size distribution during amylolysis.<br />
Acknowledgement: This work was supported from the Ministry <strong>of</strong> Education, Youth<br />
and Sports, Czech Republic (Research Centre for the Study <strong>of</strong> Extract Compounds<br />
<strong>of</strong> Barley and Hop – No. 1M0570) and the Institute Research Plan AV0Z40310501.
2-P071 Wood Biomass in Cosmetics Industry<br />
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
Radoslav Mikulášik, Jana Kosinková, Aleš Ház, Jarmila Hojerová,<br />
Svetozár Katuščák, Igor Šurina<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava, Slovakia<br />
Igor.Surina@stuba.sk<br />
In this lecture are described possibilities <strong>of</strong> using <strong>of</strong> lignocellulosic materials<br />
(LCM) in cosmetic, pharmaceutical and related industries. Many <strong>of</strong> substrates or<br />
products used in these industries are prepared or obtained from plants by different<br />
methods. One <strong>of</strong> them is thermolytical decomposition <strong>of</strong> phytomass as a raw material.<br />
The thermolysis <strong>of</strong> wood or <strong>of</strong> other LCM is mostly used to gain the energy<br />
covered in. But in this process are also formed different substances using <strong>of</strong> them<br />
are not very pr<strong>of</strong>icient.<br />
Different products formed during thermal decomposition <strong>of</strong> LCM, which can<br />
be used in cosmetics are characterized and identified by GC-MS.<br />
Keywords: biomass, phytomass, thermolysis, cosmetics, GC-MS, extractives<br />
2. 1
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P072 Termogravimetric Analysis <strong>of</strong> Liquid Pyrolysis<br />
Products <strong>of</strong> Wood Biomass<br />
2. 2<br />
Radoslav Mikulášik, Aleš Ház, Peter Šimon, Svetozár Katuščák,<br />
Igor Šurina<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava, Slovakia<br />
Igor.Surina@stuba.sk<br />
This work concerns mainly the thermal pyrolytic decomposition <strong>of</strong> wood biomass<br />
- lignocellulosic materials (LCM). The products <strong>of</strong> these reactions are gaseous,<br />
liquid (pyrolysis condensate or pyro-oil, wood tar) and solid (char). Advantage <strong>of</strong><br />
liquid fraction <strong>of</strong> wood thermolysis products as a bio-fuel is determined thermoanalytical<br />
methods. We focused on thermal stability and thermal behavior <strong>of</strong> these<br />
products and we suggest some possibilities <strong>of</strong> their utilization.<br />
Keywords: bi<strong>of</strong>uels, pyrolysis, thermal stability, TG, DTA, GC-MS
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P073 Analytical Meassurements and Phisicochemical<br />
Parametrs Determination in Strawberries and<br />
Raspberries Enhance Production<br />
Fernando R. Moreno, A. Gago, T. García-Barrera, J. L. Gómez-Ariza<br />
Dpto. de Química y CC.MM. Facultad de Ciencias Experimentales. Universidad de Huelva.<br />
Campus de El Carmen.21007 Huelva. (SPAIN)<br />
tamara@dqcm.uhu.es<br />
The safeguard <strong>of</strong> quality characteristics from harvest up to consumption is an<br />
essential requirement for the fruit sector. Quality control and authentication <strong>of</strong> fruits<br />
and derivatives is a key aspect for consumers and producers. Food authentication<br />
is the process by which a food is verified as complying with its label description.<br />
Labelling and compositional regulations, which may differ from country to country,<br />
have a fundamental place in determining which scientific tests are appropriate for a<br />
particular issue. Thus the availability <strong>of</strong> sound analytical methods which can ensure<br />
the authenticity <strong>of</strong> foods plays a fundamental role in the operation <strong>of</strong> modern society.<br />
In this sense, several analytical parameters have to be taken into account.<br />
For this reason we develop a project to study about 2000 samples in relation<br />
with the determination <strong>of</strong> some analytes in the soil, fruits and plants. The analytical<br />
measurements involve the determination <strong>of</strong> elements such as Ca, Mg, K, Na, B, Cu,<br />
Fe, Ni and Zn; anions: phosphates, nitrates, sulphates, carbonates; solids in suspension,<br />
pH, redox potential.<br />
The samples have been studied during six moths in which several agrochemical<br />
experiments have been developed such as the use <strong>of</strong> new plastics for the harvest<br />
and the pollination with bumblebees.<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P074 Multivariate Methods in Food Analysis<br />
2.<br />
Viera Mrázová, Ján Mocák, Katja Šnuderl, Ernst Lankmayr<br />
Department <strong>of</strong> Chemistry<br />
University <strong>of</strong> Ss. Cyril & Methodius, SK-91701 Trnava, Slovakia.<br />
jan.mocak@ucm.sk<br />
Methods <strong>of</strong> multivariate data analysis use various techniques <strong>of</strong> multidimensional<br />
statistics for investigation <strong>of</strong> relations and interactions inside a large table <strong>of</strong><br />
data. They are effectively employed in analysis <strong>of</strong> food, natural substances, pharmaceutical<br />
and clinical samples, or environment. Multivariate methods are aimed at<br />
grouping and classification <strong>of</strong> objects, which are represented by samples, materials,<br />
compounds, components <strong>of</strong> environment, etc.<br />
The ways <strong>of</strong> application <strong>of</strong> multivariate data analysis to classification <strong>of</strong> various<br />
food products are here demonstrated. Wine quality, as found by sensorial testing<br />
(e.g. taste, bouquet and colour), wine variety, and year <strong>of</strong> production, may be used<br />
as the main classification criteria. Subjective wine evaluation made by the experts<br />
can be combined with commonly used chemical and physical-chemical properties,<br />
measured in analytical laboratory.<br />
Another example solved in this work is elaboration <strong>of</strong> classification models<br />
for pumpkin seed oil samples representing the most widespread brands in Austria.<br />
Instrumental characterization <strong>of</strong> the oil samples was performed by the UV-VIS, near<br />
infrared, infrared and fluorescence spectra. Chemometrical processing <strong>of</strong> the measured<br />
data was oriented to selecting the most important spectral features, crucial for<br />
categorizing the oils into two or more classes according to the pumpkin oil sensorial<br />
quality evaluated by the experts. The elaborated classification models are then utilized<br />
for predicting the category, into which unclassified oil samples belong.<br />
Acknowledgement: The support <strong>of</strong> this work by the grants VEGA 1/3584/06<br />
and APVV-0057-06 is highly acknowledged.<br />
Keywords: multivariate methods, wine, pumpkin seed oil
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P075 Phytochemical Study <strong>of</strong> Flavonoides from<br />
Melampyrum Cristatum L. Species<br />
M. F. Munteanu, L. Vlase, C. Toma<br />
Universitate de vest”Vasile Goldiş<br />
The phytochemical studies achieved over the Melampyrum cristatum L. species<br />
(Scrophulariaceae) on flowers and leaves are qualitative and quantitative, but<br />
the methods are HPLC/MS, TLC, as well as dosinf after FR X. After the qualitative<br />
analysis the following results are obtained: by HPLC/MS <strong>of</strong> methanolic unhydrolysed<br />
extract from leaves there are isoquercitrine 60.838%, rutozid 3.715%, luteolină<br />
153.390%, apigenină 15.195%; in the hydrolysed one there quercetol 3.380%, luteolină<br />
131.092%, kaempferol 1.439%, apigenină 11.235%; in methanolic unhydrolysed<br />
extract from flowers are isoquercetin 40.930%, rutozid 2.876%, luteolină 140.680%,<br />
apigenină 18.190%; but in the hydrolysed one quercetol 2.659%, luteolină 11.122%,<br />
kaemferol 1.642%, apigenină 13.479%; by TLC in the flowers there are apigenină<br />
0.82%, luteolină 0.74%; but in leaves there are apigenină 0.71% şi luteolină 0.78%.<br />
The quantitative analyses are made through the method from Cynarae monography<br />
the quantity <strong>of</strong> flavonoides found in rutosid in flowers is <strong>of</strong> 1.755%, but in leaves is<br />
1.855%, while through the method from Crategus monography the quantity <strong>of</strong> flavonoides<br />
found in hiperozida in flowers is 0.722% and in leaves is 0.433%.<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P076 The Influence <strong>of</strong> Choice Factors<br />
on Fermentation <strong>of</strong> Red Wine<br />
2.<br />
J. Omelková, L. Zechmiestrová<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, CZ- 612 00 Brno, Czech Republic,<br />
omelkova@fch.vutbr.cz<br />
Wine is a product <strong>of</strong> complex interactions between fungi, yeasts and bacteria<br />
that commence in the vineyard and continue throughout the fermentation process<br />
until packaging. The study was oriented on monitoring two technology processes<br />
for production <strong>of</strong> red wine from the territory <strong>of</strong> Czech republic (Velké Pavlovice region).<br />
The composition <strong>of</strong> micr<strong>of</strong>lora during the stuck fermentation was determined<br />
in the case, when the wine was exposed to the air and then along the alcoholic fermentation.<br />
Keywords: Bacteria, fermentation, red wine, yeasts.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P077 Optimalization <strong>of</strong> Cultivation Media and<br />
Hydroxylase Enzyme Production<br />
by Aureobasidium Pullulans<br />
J. Omelková, S. Matalová, I. Šimkovic<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, CZ- 612 00 Brno, Czech Republic,<br />
omelkova@fch.vutbr.cz<br />
The present paper aims to study the influence <strong>of</strong> medium composition, temperature,<br />
method <strong>of</strong> inoculation and process <strong>of</strong> cultivation on growth <strong>of</strong> Aureobasidium<br />
pullulans. In the current work being conducted , cross-linked wheat straw were<br />
used as substrate. Aureobasidium pullulans was tested for the ability to produce hydroxylases,<br />
especially laccase and also for the ability to produce release – reducing<br />
sugars and proteins in basal media.<br />
Laccase oxidized a redox indicator ABTS ( 2,2 ‘ –azino-di (3-ethylbenzothiazoline-6-sulfonic<br />
acid ) to form a blue – green cation radical.The method is suitable for<br />
detecting laccase excreted by mycelia growing on agar and wood-based substrates.<br />
The method can be adapted for quantitative estimation by spectrophotometry.<br />
Aureobasidium pullulans were grown in different type <strong>of</strong> solid media, but less<br />
growth was observed in the course <strong>of</strong> liquid cultivations regardless <strong>of</strong> temperature.<br />
During the optimalization <strong>of</strong> the culture medium hydroxylase activity reached higher<br />
level in the presence <strong>of</strong> yeast Aureobasidium pulllulans in the glucose medium<br />
without wheat straw during submerged cultivation.<br />
Keywords: Aureobasidium pullulans, wheat straw<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P078 Influence <strong>of</strong> Modified Biocomposites on<br />
Production <strong>of</strong> Extracellular Polysaccharides by<br />
Immobilized Aureobasidium pullulans<br />
2.<br />
V. Ondruška, I. Márová, J. David, L. Vojtová<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkynova 118, 61200 Brno, Czech Republic<br />
Yeast Aureobasidium pullulans produces extracellularly many enzymes and also<br />
isndutrially significant polysaccharide pullulan. In this pilot study, modified polyurethane<br />
foams were used as immobilization agents for A. pullulans as well as material<br />
which could be degraded by yeast cells. First, modified polyurethane foams<br />
(PUR) were tested as a potential carbon and/or nitrogen source for A. pullulans. PUR<br />
foams were modified by 10% <strong>of</strong> carboxymethyl cellulose, 2-hydroxyethyl cellulose,<br />
acetylated starch and acetyl celulose, respectively. Aureobasidium pullulans cells were<br />
cultivated in Erlenmeyer flasks in optimal conditions. Samples for pullulan determination<br />
were taken in 24-hour intervals, quantitative changes <strong>of</strong> polysaccharide<br />
content were determined gravimetrically and spectrophotometrically.<br />
According to our preliminary results it seems that presence <strong>of</strong> modified polyurethane<br />
foams in cultivation medium exhibited slight negative effect on pullullan<br />
as well as biomass production. Thus, immobilization on modified PUR surface is<br />
probably not suitable for enhanced pullulan production by A.pullulans cells.<br />
Key words: polyurethane foams, immobilization, pullulan,<br />
Aureobasidium pullulans
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P079 Fatty Acids Distribution in the Lipid Fractions <strong>of</strong><br />
Calendula <strong>of</strong>ficinalis l. Seeds Oil<br />
Adela Pintea, Francisc Dulf, Constantin Bele, Sanda Andrei<br />
University <strong>of</strong> Agricultural Sciences and Veterinary Medicine Cluj-Napoca<br />
Manastur 3-5, 400372, Cluj-Napoca, Romania<br />
apintea@usamvcluj.ro<br />
The Calendula seeds oil is currently considered a potential oil seed crop with industrial<br />
or other functionalities. It is characterized by a high content <strong>of</strong> the unusual<br />
conjugated octadecatrienoic acid – calendic acid (18:3c), which give special chemical<br />
and physical properties.<br />
The fatty acids composition <strong>of</strong> main lipid fractions and the sterol content was<br />
determined by TLC and GC and confirmed by GC/MS. Seeds were analyzed in<br />
different stages during their maturation. In the seeds collected immediately after<br />
flower drops the calendic acid represents – 8.62 %, it increased at 26.6 % one week<br />
after and reached the maximum content <strong>of</strong> 53 % in the mature seeds. The increasing<br />
<strong>of</strong> 18:3c content occurs in the same time with the fast decreasing <strong>of</strong> linoleic acid and<br />
a slow decrease <strong>of</strong> oleic acid, while stearic and linolenic acid remain almost to the<br />
same values during seeds maturation. Calendic acids is practically concentrated in<br />
triacylglycerols, and is present in little amount in diacylglycerols and monoacylglycerols.<br />
Only small amounts <strong>of</strong> 18:3c was found in the polar lipids and it was absent<br />
in the free fatty acid fraction.<br />
Total sterol content was estimated at 95 mg/100 g seeds with the major representatives:<br />
β-sitosterol (41 %), stigmasterol (18 %), ∆7 – sitosterol (15 %) and campesterol<br />
10 %).<br />
Keywords: fatty acids, sterols<br />
2.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P080 Lipid Peroxidation Products in Plasma <strong>of</strong><br />
Patients with Chronic Pancreatitis<br />
2.100<br />
M. Podborská, A. Lojek, L. Kubala, R. Buňková, I. Márová,<br />
A. Ševčíková, J. Trna, P. Dítě<br />
Institute <strong>of</strong> Biophysics ASCR, v.v.i.<br />
Kralovopolska 135, CZ-612 65 Brno<br />
podborska@ibp.cz<br />
The chronic inflammation <strong>of</strong> human pancreas (chronic pancreatitis) significantly<br />
contributes to carcinogenic transformation <strong>of</strong> pancreatic cells. Inflammation<br />
is connected with an increased generation <strong>of</strong> oxygen radicals damaging pancreatic<br />
tissue. Unsaturated fatty acids are known to be primary targets <strong>of</strong> radicals. The lipid<br />
peroxidation leads to formation <strong>of</strong> mutagenic compounds such as malondialdehyde<br />
(MDA) and 4-hydroxynonenal (4-HNE). Therefore, the main aim <strong>of</strong> the study was to<br />
determine MDA and 4-HNE plasma levels in patients with chronic pancreatitis.<br />
Lipid peroxidation products MDA and 4-HNE were determined in plasma <strong>of</strong><br />
105 patients with chronic pancreatitis. MDA and 4-HNE adducts with 2,4-dinitrophenylhydrazine<br />
were extracted with Solid Phase Extraction (SPE) tubes and analyzed<br />
using HPLC with diode array detector. DSC-C18 tubes revealed the best extraction<br />
and recovery potential compare to other tested SPE tubes (e.g. DSC-CN).<br />
There were detected significant levels <strong>of</strong> plasma MDA (mean 0.42 ± standard<br />
deviation 0.15 mmol/l) and 4-HNE (0.20 ± 0.07 mmol/l). Plasma levels <strong>of</strong> MDA did<br />
not significantly correlate with levels <strong>of</strong> 4-HNE.<br />
Herein, we proved formation <strong>of</strong> lipid peroxidation products in patients with<br />
chronic pancreatitis. On the basis <strong>of</strong> this data these patients will be examined periodically<br />
in the consequent two years.<br />
Keywords: chronic pancreatitis, lipid peroxidation
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P081 The Effect <strong>of</strong> Lipophilicity on Antifungal<br />
Activity <strong>of</strong> Some 2-Amino and 2-<br />
Methylbenzimidazole derivatives<br />
Sanja O. Podunavac-Kuzmanović, Dragoljub D. Cvetković<br />
University <strong>of</strong> Novi Sad, Faculty <strong>of</strong> Technology<br />
Bulevar cara Lazara 1, 21000 Novi Sad, Serbia<br />
sanya@uns.ns.ac.yu<br />
A series <strong>of</strong> 2-amino and 2-methylbenzimidazole derivatives were tested in vitro<br />
for their antifungal activity against yeast Saccharomyces cerevisiae and minimum<br />
inhibitory concentration was determined for all the compounds.<br />
Quantitative structure-activity relationship (QSAR) has been used to study the<br />
relationships between the antifungal activity and lipophilicity parameter, logP, calculated<br />
by using CS Chem-Office S<strong>of</strong>tware version 7.0. The stepwise regression method<br />
was used to derived the most significant models as a calibration models for predicting<br />
the inhibitory activity <strong>of</strong> these class <strong>of</strong> molecules.<br />
The models were validated by leave one out technique as well as by the calculation<br />
<strong>of</strong> statistical parameters for the established theoretical models. The best QSAR<br />
model for prediction <strong>of</strong> antifungal activity <strong>of</strong> the investigated series <strong>of</strong> benzimidazoles<br />
was developed. High agreement between experimental and predicted inhibitory<br />
values was obtained.<br />
The results <strong>of</strong> this study indicate that the lipophilicity parameter has a significant<br />
effect on antifungal activity <strong>of</strong> this class <strong>of</strong> compounds, which simplify design<br />
<strong>of</strong> new biologically active molecules.<br />
Keywords: benzimidazole, lipophilicity<br />
2.101
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P082 QSAR Models for Predicting the Antibacterial<br />
Activity <strong>of</strong> Some 1-Benzylbenzimidazole<br />
Derivatives<br />
2.102<br />
Sanja O. Podunavac-Kuzmanović, Dragoljub D. Cvetković, D.Barna<br />
University <strong>of</strong> Novi Sad, Faculty <strong>of</strong> Technology<br />
Bulevar cara Lazara 1, 21000 Novi Sad, Serbia<br />
sanya@uns.ns.ac.yu<br />
In the present study a series <strong>of</strong> 1-benzylbenzimidazole derivatives were<br />
tested in vitro for their antibacterial activity against Pseudomonas aeruginosa. The<br />
tested compounds displayed in vitro antibacterial activity and minimum inhibitory<br />
concentration (MIC) was determined for all the compounds.<br />
Quantitative structure activity relationship (QSAR) analysis was applied to<br />
find out the correlation between the various physicochemical, steric, electronic, and<br />
structural molecular descriptors <strong>of</strong> the compounds and their inhibitory activity. The<br />
molecular descriptors were calculated by use <strong>of</strong> different s<strong>of</strong>tware products and<br />
stepwise regression method was used to derive the most significant models.<br />
The results showed that the antibacterial activity could be modeled using the<br />
different values <strong>of</strong> molecular descriptors. The low residual activity and high crossvalidated<br />
r2 values (r2 ) observed indicated the predictive ability <strong>of</strong> the developed<br />
cv<br />
QSAR models. It was revealed that lipophilic parameter was found to have significant<br />
influence on the antibacterial activity and this study provides an insight to design<br />
new molecules.<br />
Keywords: benzimidazole, antibacterial
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P083 Antimicrobial Investigations <strong>of</strong> Nickel(II)<br />
Complexes With Some 1-Benzylbenzimidazole<br />
Derivatives<br />
Sanja O. Podunavac-Kuzmanović, Dragoljub D. Cvetković<br />
University <strong>of</strong> Novi Sad, Faculty <strong>of</strong> Technology<br />
Bulevar cara Lazara 1, 21000 Novi Sad, Serbia<br />
sanya@uns.ns.ac.yu<br />
In the paper the antimicrobial activity <strong>of</strong> nickel(II) complexes with two<br />
series <strong>of</strong> benzimidazoles was investigated. The first one was based on 1-benzyl-<br />
2-aminobenzimidazole, and the second one contained 1-benzyl-2-amino-5,6dimethylbenzimidazole.<br />
Antimicrobial activities <strong>of</strong> the complexes were evaluated in vitro against three<br />
gram-positive bacterial strains (Bacillus cereus, Staphylococcus aureus and Sarcina<br />
lutea) and one gram-negative isolate (Pseudomonas aeruginosa). All the investigated<br />
compounds displayed antimicrobial activity against very persistent microorganisms,<br />
whilst the inhibitory activity is upper against gram-positive than gram-negative<br />
bacteria. Minimum inhibitory concentration (MIC) was determined for all the<br />
complexes. The effect <strong>of</strong> ligand and complex structure on the antimicrobial activity<br />
is discussed.<br />
Keywords: benzimidazole, antimicrobial<br />
2.10
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P084 Cheese Species Identification by Multivariate<br />
Analysis <strong>of</strong> Elemental Data<br />
2.10<br />
Martin Polovka, Milan Suhaj, Mária Koreňovská<br />
Department <strong>of</strong> Chemistry and Food Analysis, VÚP Food Research Institute<br />
Priemyselná 4, P. O. Box 25, SK-824 75 Bratislava, Slovak Republic<br />
polovka@vup.sk<br />
Multivariate statistical techniques, e.g., cluster, principal component, factor,<br />
and canonical discriminant analysis, were used for the mutual differentiation and<br />
classification <strong>of</strong> 54 cow’s, 116 sheep’s and 20 goat’s cheeses <strong>of</strong> Slovak origin, using<br />
Ba, Cr, Cu, Hg, Mg, Mn, Ni and V as the elemental markers, determined by atomic<br />
absorption spectroscopy (AAS).<br />
Using the cluster analysis, preliminary results were obtained, indicating the<br />
partial species differentiation <strong>of</strong> cheeses. Principal component and factor analysis<br />
seemed to be effective methods not only for data visualisation but also for the efficient<br />
differentiation <strong>of</strong> examined cheese species. Canonical discriminant analysis revealed<br />
more than 93% successful differentiation and correct classification <strong>of</strong> cheese<br />
samples. Stepwise discriminant analysis selected Mg, Cu, Ni and Mn as the best set<br />
<strong>of</strong> markers for Slovak cheese species discrimination and identification <strong>of</strong> their potential<br />
origin. As the main limiting factor, the composition <strong>of</strong> milk used for cheeses’<br />
production must been also taken into account.<br />
Keywords: cheese, origin, elemental markers
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P085 Optimalization <strong>of</strong> Method for Quantification <strong>of</strong><br />
Streptococcus Mutans to Dental Materials<br />
Ilona Prudíková, S. Matalová, Jiřina Omelková, Josef Jančář<br />
Institute <strong>of</strong> Materials Chemistry (IMC), Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
xcprudikova@fch.vutbr.cz<br />
Microbial adhesion to the surface <strong>of</strong> composite resins and other restorative materials<br />
is an important parameter in the aetiology <strong>of</strong> dental caries.<br />
The aim <strong>of</strong> this study was to optimized the method for quantification <strong>of</strong><br />
plaque deposition. The test surfaces used were a commercial microhybrid composite<br />
(Adoro, Ivoclar Vivadent), a commercial D3MA resin-based material (Advanced<br />
Dental Materials) and a commercial ceramic material (Ivoclar Vivadent) as reference<br />
material.<br />
The adhesion was tested with Streptococcus mutans. Microbial culture was inoculated<br />
into sterile test tubes in BHIB with tested specimens and incubated anaerobically<br />
for 17 hours.<br />
For the determination <strong>of</strong> bacterial adhesion the modified method <strong>of</strong> Biuret was<br />
used. Protein concentration was obtained spectrophotometrically at 540 nm.<br />
Keywords: adhesion, dental materials<br />
2.10
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P086 BFRs Pr<strong>of</strong>iles in Breast Milk and Adipose Tissue<br />
Samples: Case Study Concerned with Czech<br />
Population<br />
2.10<br />
Jana Pulkrabová, Petra Hrádková,<br />
Michaela Nápravníková, Jana Hajšlová, Jan Poustka<br />
ICT, Prague, Department <strong>of</strong> Food Chemistry and Analysis<br />
Technická 3, 16628 Prague 6, Czech Republic<br />
jana.pulkrabova@vscht.cz<br />
In the recent two decades, growing attention has been focused on BFRs, a group<br />
<strong>of</strong> “emerging” halogenated POPs, which, similarly to chlorinated POPs, tend to accumulate<br />
in lipid rich tissue across the food web. The main aim <strong>of</strong> the presented<br />
study was to investigate levels and pr<strong>of</strong>iles <strong>of</strong> (i) BFRs represented by PBDEs and<br />
HBCD and (ii) “classical” organochlorine contaminants occurring in the adipose<br />
tissue <strong>of</strong> people living in the Czech Republic and in human breast milk from Czech<br />
mothers. To our knowledge, this is the very first study reporting PBDEs levels in<br />
adipose tissue samples <strong>of</strong> Czech citizens together with similar studies conducted<br />
elsewhere in the world. The results clearly showed ubiquitous occurrence <strong>of</strong> BFRs<br />
in the environment <strong>of</strong> general Czech population. While BDE 153 was the most abundant<br />
congener in examined adipose tissue samples, followed by BDE 47. Opposite<br />
ratio <strong>of</strong> these major PBDEs was found in human breast milk. The diversity in kinetics<br />
<strong>of</strong> individual congeners in human body was documented this way. In spite <strong>of</strong><br />
an extensive use, BDE 209 was detected in only few adipose tissue samples and /or<br />
human breast milk.<br />
This study was supported by project BIOBROM (2B06151) and MSM 6046137305,<br />
both funded by MSMT <strong>of</strong> the Czech Republic<br />
Keywords: POPs, BFRs, adipose tissue, breast milk
2-P087 Iodine in the Czech Market Milk<br />
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
Jana Řeháková, Radek Kavřík, Irena Řehůřková, Jiří Ruprich<br />
National Institute <strong>of</strong> Public Health in Prague, Centre for Hygiene <strong>of</strong> Food Chains<br />
Palackého 3a, 612 42 Brno, Czech Republic<br />
kavrik@chpr.szu.cz<br />
Iodine is very important element for human body, inside <strong>of</strong> context with function<br />
<strong>of</strong> thyroid gland. In past there was observed iodine deficit in the Czech Republic.<br />
The National Institute <strong>of</strong> Public Health in Prague, Centre <strong>of</strong> Hygiene <strong>of</strong> Food<br />
Chains in Brno is involved in „The Project on Dietary Exposure to Selected Chemical<br />
Substances“. The objective <strong>of</strong> the project is to describe the dietary exposure <strong>of</strong> the<br />
population <strong>of</strong> the Czech Republic. In the framework <strong>of</strong> this project iodine has been<br />
monitored since 1998.<br />
It was founded that milk is the most important source <strong>of</strong> iodine. That can be a<br />
hazard <strong>of</strong> high intake value <strong>of</strong> iodine for children less than ten years old, because in<br />
this age are both milk and dairy produces very important parts <strong>of</strong> diet. EC Regulation<br />
No. 1459/2005 decreased amount <strong>of</strong> iodine in complete feed for dairy cows and<br />
layers from 10 mg/kg to 5 mg/kg.<br />
For determination <strong>of</strong> iodine was used Sandell-Kolth<strong>of</strong>f spectr<strong>of</strong>otometric method.<br />
The principle <strong>of</strong> this method is in catalytic function <strong>of</strong> iodide to oxidation-reduction<br />
reaction Ce 4+ and As 3+ . Limit <strong>of</strong> quantification is 15 μg/kg. The method is<br />
accredited by Czech Accreditation Institute.<br />
According to the monitoring plan, every year, in May and November, 24 samples<br />
<strong>of</strong> milk (12 half-fat milks and 12 defatted milks) was purchased from shops in<br />
Czech Republic. These samples were analysed as one composite sample. Average<br />
content <strong>of</strong> iodine in milk is about 300 ug/kg. Since 2007 milk samples are analysed<br />
individually to get imagination about distribution <strong>of</strong> iodine concentration.<br />
Keywords: iodine, milk<br />
2.10
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P088 Monitoring <strong>of</strong> Total Mercury Content in Foods<br />
Consumed by the Czech Population<br />
During 1994–2005<br />
2.10<br />
J. Řeháková, I. Řehůřková, J. Ruprich, J. Kalvodová, D. Matulová<br />
National Institute <strong>of</strong> Public Health - Centre for the Hygiene <strong>of</strong> Food Chains, Palackého 3a,<br />
Brno 612 42 Czech Republic, www.chpr.szu.cz<br />
rehakova@chpr.szu.cz<br />
Mercury belongs to group <strong>of</strong> heavy metals. For human organism it is entirely<br />
toxic element. Mercury can be found in the nature in various forms with different<br />
toxicity. The most important intake <strong>of</strong> mercury into the organism takes place via the<br />
digestive tract. Hence, systematic monitoring <strong>of</strong> occurrence and concentration in<br />
foodstuffs is important.<br />
As a significant contaminant mercury (total) is monitored within the framework<br />
<strong>of</strong> „The Project <strong>of</strong> Dietary Exposure <strong>of</strong> the Czech Population to Selected Chemical<br />
Substances“ carried out by the Centre for the Hygiene <strong>of</strong> Food Chains in Brno<br />
since 1994. The aim <strong>of</strong> this programme is assessment <strong>of</strong> the dietary exposure <strong>of</strong> the<br />
Czech population to chemical substances, comparison to exposure limits, estimation<br />
<strong>of</strong> burden <strong>of</strong> the population and specification <strong>of</strong> health risks.<br />
Mercury content is determined in samples <strong>of</strong> food, which represent so-called<br />
food basket defined for average consumption <strong>of</strong> Czech population. Foodstuffs significant<br />
by its mercury content are sea fish and freshwater fish, pork liver, <strong>of</strong>fal,<br />
mushrooms. With regard to consumption in term <strong>of</strong> contribution to exposure dose<br />
sea fish and freshwater fish, potatoes and rice are significant.<br />
The FAO/WHO JECFA evaluated PTWI for total Hg and set 5 ug/kg b.w./week<br />
in 1978. Observed average exposure dose estimated for Czech population reached<br />
1,9 % PTWI.<br />
Mercury content is determined by AAS method using principle <strong>of</strong> selective system<br />
AMA 254 with solid sample dosing.<br />
Keywords: mercury, dietary exposure
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P089 The Influence <strong>of</strong> Surface Characteristics on<br />
Bacterial Cell Adhesion<br />
Olga Schreiberová, Tereza Krulikovská, Jitka Hrdinová, Jan Masák,<br />
Alena Čejková, Vladimír Jirků<br />
Institute <strong>of</strong> Chemical Technology Prague,<br />
Department <strong>of</strong> Fermentation Chemistry and Bioengineering<br />
Technická 5, 166 28 Praha 6 - Dejvice<br />
olga.schreiberova@vscht.cz<br />
Cell adhesion is an important feature <strong>of</strong> cell behaviour in natural environments.<br />
It is also important in many branches <strong>of</strong> human activities. Adhered cells are<br />
known to possess properties that enable them to withstand stressful environment.<br />
This characteristic is highly important in pollutant degradation. The properties <strong>of</strong><br />
cell wall and envelopes are the important features that determine the ability <strong>of</strong> cells<br />
to adhere to a carrier with specific properties.<br />
The aim <strong>of</strong> our work was the determination <strong>of</strong> external conditions that lead to<br />
cell adhesion. The cell wall properties and cell adhesion on specific materials were<br />
evaluated.<br />
The studied microorganism was gram-positive bacteria Rhodococcus erythropolis<br />
that is able to utilize phenol and other toxic pollutants as a sole carbon source. Its<br />
ability to adhere to silicone, modified glass and teflon was determined.<br />
The methods employed in cell wall characterization were: cell wall hydrophobicity<br />
measurement, X-ray photoelectron spectroscopy analysis, cell wall protein<br />
and saccharides determination.<br />
Keywords: cell wall properties, biodegradation, cell adhesion<br />
2.10
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P090 HPLC Analysis <strong>of</strong> Flavonoids<br />
from Satureja Hortensis L.<br />
2.110<br />
Maria-Loredana Soran, Bros Ildiko, Constantin Bele, Emanoil Surducan,<br />
Vasile Surducan, Cristian Tudoran<br />
National Institute <strong>of</strong> Research & Development for Molecular and Isotopic Technology,<br />
65-103 Donath Street, 400293 Cluj-Napoca, Romania;<br />
loredana_soran@yahoo.com<br />
The determination <strong>of</strong> flavonoids from Satureja hortensis L. was performed by<br />
High-Performance Liquid Chromatography (HPLC) on a RP-C18 column, using an<br />
HPLC Shimadzu equipped with photodiode array detector. The separation method<br />
involved one linear gradient and one isocratic step. Solvent A was methanol and<br />
solvent B was water with 0.1% acetic acid. At the begin, the elution was performed<br />
with 5% methanol that increase linear to 42% in 35 minutes and than 42% methanol<br />
for 15 minutes. The analytical column was maintained at 48 0 C and the elution was<br />
performed with 1 ml/min flow-rate. The injected sample volume was 20 μl.<br />
The standard solutions were analyzed and the calibration curves were drawing<br />
for to determine the flavonoids from our plant.<br />
Keywords: HPLC, flavonoids
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P091 Selection <strong>of</strong> Suitable Microorgamisms for<br />
Preparation <strong>of</strong> Lactic Acid Fermented Cabbage<br />
Juice<br />
Ivana Šimonová, Jolana Karovičová, Mária Greifová, Zlatica Kohajdová<br />
Institute <strong>of</strong> Biotechnology and Food Science, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava, Slovak Republic<br />
ivana.simonova@stuba.sk<br />
The conditions for lactic acid fermentation based on a cabbage juice and four<br />
probiotic lactic acid bacteria has been studied. All cultures showed good biochemical<br />
activity in the cabbage juices. Addition <strong>of</strong> prebiotic preparation into the cabbage<br />
juices has been studied also.<br />
We tested the growth <strong>of</strong> probiotics cultures in the three medium (medium<br />
A-MRS broth, medium B-MRS broth with addition 2 % prebiotic preparation and<br />
medium C-MRS broth, the glucose was substituted prebiotic preparation) and the<br />
metabolites from the cultivation <strong>of</strong> probiotic bacteria were determinated by HPLC<br />
method with RI detection.<br />
The results show, that tested probiotic bacteria and addition <strong>of</strong> prebiotic preparation<br />
were suitable for preparation lactic acid fermented cabbage juice with functional<br />
properties.<br />
Keywords: functional food, lactic acid fermentation<br />
2.111
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P092 Using <strong>of</strong> Hydrocolloids for Delaing Staling <strong>of</strong><br />
Bakery Products<br />
2.112<br />
Ivana Šimonová, Zlatica Kohajdová, Jolana Karovičová<br />
Institute <strong>of</strong> Biotechnology and Food Science, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava, Slovak Republic<br />
zlatica.kohajdova@stuba.sk<br />
Nowadays, the use <strong>of</strong> additives has become a common practice in the baking<br />
industry...The effect <strong>of</strong> different hydrocolloids on the rheological properties <strong>of</strong> composite<br />
flour dough, quality <strong>of</strong> final products and shelf life was investigated.<br />
Addition <strong>of</strong> these compounds concluded in higher water absorption capacity (from<br />
60.5 to 68.3 %) and dough stability (from 6.5 to 14 min). The incorporation <strong>of</strong> hydrocolloids<br />
into the loaves also influenced volume, cambering and sensory acceptance <strong>of</strong> final<br />
products in different ways. Baked goods staling evaluated during 72 h storage period<br />
through bread firmness values showed, that loaves prepared with hydrocolloids extent<br />
products contained celullose derivate were s<strong>of</strong>ten when control sample. In conclusion,<br />
guar gum could be recommended as improver in the bread-making performance owing<br />
to its good rheological, sensory and crumb s<strong>of</strong>tening effects.<br />
Keywords: hydrocolloids, staling
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P093 Influence <strong>of</strong> Ph on the Rheology Properties <strong>of</strong><br />
Tomato Ketchups<br />
Ivana Šimonová, Jarmila Lehkoživová, Jolana Karovičová, Jarmila Hojerová,<br />
Zlatica Kohajdová,<br />
Institute <strong>of</strong> Biotechnology and Food Science, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava, Slovak Republic<br />
jarmila.lehkozivova@stuba.sk<br />
The aim <strong>of</strong> this work was investigated the influence <strong>of</strong> pH on the rheological<br />
properties <strong>of</strong> 3 samples <strong>of</strong> the formulated tomato ketchups. In recent years rheological<br />
properties <strong>of</strong> food products have become increasingly important in the formulation<br />
<strong>of</strong> food and the optimization <strong>of</strong> food processing.<br />
The tomato ketchup samples were prepared from tomato paste (TSS 28-30%) <strong>of</strong><br />
the company Kolagrex Int., s.r.o. with ingredients (resistamyl, isosweet, guar gum,<br />
vinegar and salt) and pH was modified at level 3.5, 4.0 or 4.5 (the most common pH<br />
levels <strong>of</strong> tomato ketchups). The mixture was then stirred 5 min and heated until the<br />
temperature 85°C reached.<br />
The rheological measurements were carried out using the rotational viscometer<br />
(controlled rate mode) HAAKE Viscotester VT 550 (Haake, Karlsruhe, Germany)<br />
with coaxial cylinder measuring sensor systems MV DIN. The Viscotester VT 550<br />
was computer-operated with the application s<strong>of</strong>tware.<br />
The results were indicated that these samples <strong>of</strong> tomato ketchup behave as non-<br />
Newtonian fluids with pseudoplastic and thixotropic characteristics. The apparent<br />
viscosity was decreased with increasing pH <strong>of</strong> tomato ketchups at all temperature<br />
range 5-90°C.<br />
Keywords: rheological properties, tomato ketchup<br />
2.11
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P094 Distribution <strong>of</strong> Diazinon in Various Tissues and<br />
its Effect on Serum Cholinesterase after an<br />
Intraperitoneal Administration<br />
2.11<br />
Branislav Šiška, Jozef Golian, Robert Toman, Andrea Krajčírová<br />
Fakulty <strong>of</strong> Biotechnology and Food Sciences, Slovak Agricultural University in Nitra<br />
Trieda A. Hlinku 2, 949 76 Nitra<br />
branislav.siska@gmail.com<br />
The aim <strong>of</strong> this study was to evaluate the distribution <strong>of</strong> diazionon in various<br />
tissues and its effect on serum cholinesterase catalytic activity after an intraperitoneal<br />
administration.<br />
Laboratory rats were randomly divided into 2 groups. Each group consisted <strong>of</strong><br />
10 males. Animals in the first group were administrated with diazinon 20 mg.kg -1<br />
bw. intraperitoneally in physiological solution. The second group served as a control<br />
group and was administrated only with the physiological solution. 24 hours<br />
after the administration <strong>of</strong> tested substance, animals were sacrificed, blood samples<br />
were taken from hearts and samples <strong>of</strong> livers, kidneys, muscles and fat tissue were<br />
taken during the autopsy.<br />
Catalytic activity <strong>of</strong> cholinesterase was determined with the using <strong>of</strong> Bio-La-<br />
Test ® . The amount <strong>of</strong> diazinon in tissues was determined with using <strong>of</strong> gas chromatography<br />
with mass spectrometry.<br />
We observed that average amount <strong>of</strong> diazinon in samples <strong>of</strong> livers was under<br />
the detection limit, in samples <strong>of</strong> kidneys and muscles was slightly increased and<br />
in samples <strong>of</strong> fat tissue was significantly increased. We also observed significant<br />
decrease <strong>of</strong> cholinesterase activity in comparison with control animals.<br />
Keywords: diazinon, cholinesterase activity
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P095 Identification <strong>of</strong> Bacterial Strains <strong>of</strong> Species<br />
Lactococcus Lactis in Hard Cheeses using PCR<br />
A. Španová , J. Herzogová, B. Rittich<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Department <strong>of</strong> Food Chemistry and Biotechnology,<br />
Purkyňova 464/118, 612 00 Brno, Czech Republic<br />
Species-specific PCR primers 1 PALA4 and PALA14 (targeted on acm A gene encoding<br />
N- acetylmurimidase specific for L. lactis) were used for identification strains<br />
<strong>of</strong> species Lactococcus lactis in hard cheeses, The 16S rDNA-targeted PCR primer<br />
pair 27f-L1a was used 2 for distinction between Lactococcus lactis subsp. lactis and<br />
Lactococcus lactis subsp. cremoris. Falsely negative results can occur in PCR identification<br />
due to the presence <strong>of</strong> extracellular PCR inhibitors in tested real samples. Pre-<br />
PCR processing procedures have been developed to remove or reduce the effects <strong>of</strong><br />
PCR inhibitors. Bacterial DNA was isolated from hard cheeses samples and crude<br />
cell lysates from bacteriocin producing strains by magnetic carriers P(HEMA-co-<br />
EDMA) containing carboxyl groups. DNA was reversibly bind on carrier surface in<br />
the presence <strong>of</strong> high concentrations <strong>of</strong> poly(ethylene glycol) (PEG 6000) and sodium<br />
chloride 3 . Phenol extraction <strong>of</strong> DNA was used as control. The PCR products were<br />
separated and identified using electrophoresis in agarose gel.<br />
1 G. Buist, J. Kok, K.J. Leenhouts, M. Dabrowska, G. Vemena, A.J. Haandrikman.<br />
J. Bacteriol. 177 (1995) 1554.<br />
2 R. K. Barakat, M.W, Griffiths L.J. Hartus. Internat. J. Food Microbiol. 62 (2000)<br />
83.<br />
3 J. Křížová, A. Španová, B. Rittich, D. Horák, J. Chromatogr. A 1064 (2005) 247.<br />
This research has been supported by grant National Agency for Agricultural<br />
Research 1G57037 a long-term research program <strong>of</strong> the Ministry <strong>of</strong> Education,<br />
Youth and Sports <strong>of</strong> the Czech Republic (project No. MSM 0021622415).<br />
2.11
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P096 Identification <strong>of</strong> Bacterial Strains <strong>of</strong> Species<br />
Streptococcus thermophilus using PCR<br />
2.11<br />
A. Španová, M. Tycová, B. Rittich<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry, Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 464/118, 612 00 Brno, Czech Republic<br />
Polymerase chain reaction (PCR) is molecular diagnostic method which allows<br />
the identification <strong>of</strong> lactic acid bacteria used in food industry. In the present study<br />
species-specific PCR primers 1 (targeted on highly conserved 16S rDNA region) were<br />
used for identification <strong>of</strong> 23 strains <strong>of</strong> species Streptococcus thermophilus collected<br />
in Culture Collection <strong>of</strong> Dairy Microorganisms Lakt<strong>of</strong>lora (CCDM, Tábor, Czech<br />
Republic). Bacterial DNA was isolated from crude cell lysates by magnetic microspheres<br />
P(HEMA-co-EDMA) containing carboxyl groups. DNA was reversibly bind<br />
on their surface in the presence <strong>of</strong> high concentrations <strong>of</strong> poly(ethylene glycol) (PEG<br />
6000) and sodium chloride 2 . Phenol extraction <strong>of</strong> DNA was used as control. The<br />
PCR products (968 bp) were separated using electrophoresis in agarose gel.<br />
1 S. Lick, K. Dreschner, K.J. Keller. Appl. Environ. Microbiol. 67 (2001) 4137.<br />
2 J. Křížová, A. Španová, B. Rittich, D. Horák. J. Chromatogr. A 1064 (2005) 247<br />
This research has been supported by a long-term research program <strong>of</strong> the<br />
Ministry <strong>of</strong> Education, Youth and Sports <strong>of</strong> the Czech Republic (project No. MSM<br />
0021622415).
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P097 Study <strong>of</strong> Oxidation Stability <strong>of</strong> Selected<br />
Vegetable Oils<br />
Hana Štoudková, Monika Maxová, Jiří Kučerík, Jana Zemanová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Institute <strong>of</strong> Food Science and Biotechnology<br />
Purkyňova 118, 61200 Brno, Czech Republic<br />
stoudkova@fch.vutbr.cz<br />
Vegetable oils are obtained from different parts <strong>of</strong> oilseed plants by cold<br />
expression and subsequent extraction and purification. Since long ago, oils belong<br />
to among basic cosmetic preparations and use in pharmaceuticals, food industry<br />
and other industrial purposes. They embody the whole series <strong>of</strong> authenticated positive<br />
efects on human organism and they are used as a part <strong>of</strong> food supplements.<br />
Oxidation processes influence quality <strong>of</strong> oils and fats. Characteristic changes<br />
associated with oxidative deterioration include development <strong>of</strong> unpleasant tastes<br />
and odours as well as changes in color, viskosity, density or solubility.<br />
The thermal stability <strong>of</strong> different vegetable oils refined (Grape seed, Crude<br />
Linseed, Castor, Almond, Soya bean, Pumpkin seed, Jojoba, Avocado, Apricot kernel,<br />
Rice bran, Sunflower, Corn and Olive) were studied. As the analytical method<br />
Differential Scanning Calorimetry (DSC) was employed. The order <strong>of</strong> steadiness<br />
<strong>of</strong> vegetable oils was identified by statistical comparison <strong>of</strong> record gained from<br />
various temperature extrapolation and reciprocal comparison <strong>of</strong> steadiness <strong>of</strong> given<br />
oils. The order <strong>of</strong> the most stable oils (castor and olive) and the least stable<br />
oil (linseed) depending on extrapolation and reciprocal comparison did not differ.<br />
The non-isothermal method was employed with the aim to determine the induction<br />
period <strong>of</strong> vegetable oils.<br />
Keywords: vegetable oils, DSC, induction period, oxidation<br />
2.11
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P098 Antioxidant Properties <strong>of</strong> Grape Skins Extracts<br />
Investigated by EPR and UV-VIS Spectroscopy<br />
2.11<br />
Lenka Šťavíková , Martin Polovka<br />
Department <strong>of</strong> Food Chemistry and Biotechnology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology,<br />
Purkyňova 118,CZ-612 00 Brno, Czech Republic.<br />
stavikova@fch.vutbr.cz<br />
Nowadays, the growing attention is focused on the improvement <strong>of</strong> human<br />
health by the consumption <strong>of</strong> food or food supplements rich in antioxidants. Grape<br />
skins contain a plenty <strong>of</strong> different flavonoids, e. g., quercetin, catechins, flavonols,<br />
anthocyanidins, phenolic acid derivatives and other compounds. They are recently<br />
<strong>of</strong> great interest due to their potential role in the “French Paradox” phenomenon.<br />
As the beneficial effects <strong>of</strong> wine consumption are ascribed just to them, they are also<br />
used for different therapeutic purposes. Most <strong>of</strong> these compounds are released to<br />
wine during its production.<br />
In this contribution, the complex study <strong>of</strong> grape skin alcoholic and water<br />
extracts, prepared from two wine grape varieties, Svatovavřinecké (St. Laurent) and<br />
Alibernet <strong>of</strong> Moravian origin is presented. Extracts were prepared from different<br />
amounts <strong>of</strong> either crude dried grape skins or lyophilized grape skin powders (0.5,<br />
1.0 and 1.5 g) using the solvent extraction to methanol, ethanol and water at different<br />
temperature from 40 up to 120°C.<br />
Antioxidant activity <strong>of</strong> extracts was tested by EPR spectroscopy in Fenton sys-<br />
tem (H2O2/Fe2+) generating reactive radicals ( • OH, O 2<br />
–• , •CH3) followed by spin<br />
trapping technique, using 5,5-dimethylpyrroline-N-oxide (DMPO) as spin trap. In<br />
addition, radical scavenging activity <strong>of</strong> extracts was assessed applying 2,2-diphenyl-1-picrylhydrazyl<br />
( • DPPH) free radical and 2,2'-azino-bis-(3-ethylbenzthiazoline-6-sulfonic<br />
acid) cation radical (ABTS •+ assays. Total phenolic content (TPC) <strong>of</strong><br />
individual extracts was determined using the Folin-Ciocalteu assay and their tristimulus<br />
color values (CIE Lab) were estimated, using the UV-VIS spectrophotometer.<br />
In addition, pH values <strong>of</strong> all extracts were also measured. All the data obtained<br />
were subsequently correlated and discriminated, using the multivariate statistics,<br />
involving the canonical discriminant analysis, principal component analysis, and<br />
canonical correlation analysis, respectively. ...<br />
The extend <strong>of</strong> this <strong>abstract</strong> exceeded the allowed size and therefore had to be clipped.
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P099 The Impact <strong>of</strong> Fermentaion Process on Amino<br />
Acids Pr<strong>of</strong>ile in White Wine Veltlínské Zelené<br />
Lenka Šťavíková, Miroslav Hrstka<br />
Department <strong>of</strong> Food Chemistry and Biotechnology, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology,<br />
Purkyňova 118,CZ-612 00 Brno, Czech Republic.<br />
stavikova@fch.vutbr.cz<br />
Amino acids represent 30-40% <strong>of</strong> total wine nitrogen. It is generally accepted,<br />
that they may act as nutrients for bacterial growth during the secondary fermentations.<br />
They can be either partially or totally metabolized by yeast during the growth<br />
phase, excreted by living yeasts at the end <strong>of</strong> fermentation or released by proteolysis<br />
during autolysis <strong>of</strong> dead yeast. On the contrary, their production by enzymatic<br />
degradation <strong>of</strong> the grape proteins is known. Furthermore, it is well-known that the<br />
amino acid content <strong>of</strong> wine is dependent on the fertilization, climatic conditions,<br />
duration <strong>of</strong> skin maceration in the must, field treatments and on other factors.<br />
In this work, the impact <strong>of</strong> spontaneous and controlled fermentation on amino<br />
acid pr<strong>of</strong>ile in white wine Veltlínské zelené (Vitis vinifera) was observed. The ion<br />
exchange chromatography with post-column derivatization with ninhydrin and<br />
spectrophotometric detection were utilized as detection system. The sampling and<br />
subsequent analysis was performed every other day continuously, starting from cider<br />
up to final young wine.<br />
Using this approach, 23 different amino acids were identified. The arginine,<br />
alanine, proline, glutamine and γ-aminobutyric acid were the most dominant. Their<br />
concentration in the samples obtained by controlled fermentation range from 302<br />
mg.l -1 up to 1578 mg.l -1 , whereas in those obtained by spontaneous fermentation,<br />
from 289 mg.l -1 up to 1371 mg.l -1 . During the spontaneous fermentation process, the<br />
slight increase <strong>of</strong> majority <strong>of</strong> amino acids’ concentration to the maximum with gradual<br />
decrease after reaching it was observed. On the contrary, during the controlled<br />
fermentation, rapid decrease <strong>of</strong> amino acids content without any meaningful alterations<br />
for any <strong>of</strong> them was noticed. The most significant concentration differences<br />
between controlled and spontaneous fermentations were observed for asparagine,<br />
proline, glycine, cysteine and citruline.<br />
Keywords: wine, amino acids, fermentation, ion exchange chromatography<br />
2.11
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P100 Characterization <strong>of</strong> Neutral Lipid Composition<br />
<strong>of</strong> Nigella Sativa L. Seeds Oil<br />
2.120<br />
Claudia-Crina Toma, Adela Pintea, Constantin Bele, Francisc Dulf .<br />
Universitatea de Vest “Vasile Goldis” Arad<br />
Feleacului, 2 Arad 340041, Romania<br />
claudiatoma200 @yahoo.com<br />
Nigella sativa L. seeds are used as food ingredients but also as a medicinal plant<br />
with various pharmaceutical effects. The total oil content <strong>of</strong> Nigella seeds oil represents<br />
31 % <strong>of</strong> fresh weight and the main fraction – 97 % - consists in the neutral<br />
lipids.<br />
Triacylglycerols, diacylglycerols, monoacylglycerols and esterified sterols were<br />
separated by column chromatography and thin layer chromatography. The fatty acids<br />
(as fatty acids methyl esters) pr<strong>of</strong>ile was determined in each fraction by GC/FID.<br />
Data were compared with fatty acids <strong>of</strong> the total oil and those <strong>of</strong> the polar lipids.<br />
Triacylglycerols are the main fraction <strong>of</strong> the neutral lipid class. Their fatty acid<br />
pr<strong>of</strong>ile is very similar with the total oil, with: 12 % palmitic acid, 22 % oleic acid, 57<br />
% linoleic acid and 2.4 % eicosadienoic acid. The latest one is an unusual fatty acids,<br />
considered a taxonomic marker <strong>of</strong> Nigella species. Diacylglycerols and monoacylglycerols<br />
have a similar pr<strong>of</strong>ile, but with lower amounts <strong>of</strong> linoleic acid (51 and 50<br />
%) and higher amount <strong>of</strong> stearic an oleic acid. The most saturated fraction was the<br />
esterified sterols with 17, 6 % palmitic acid and, 4, 5 % <strong>of</strong> stearic acid. Polar lipid<br />
fraction also contains important amounts <strong>of</strong> palmitic and stearic acid.<br />
The highest content <strong>of</strong> eicosadienoic acid was found in the polar lipid fraction<br />
(4 %) while the lowest is in the esterified sterols (2 %).<br />
Nigella sativa represents valuable edible oil, with high content <strong>of</strong> polyunsaturated<br />
fatty acids and phytosterols.<br />
Keywords: neutral lipids, fatty acis
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P101 Identification <strong>of</strong> Viable Lactobacillus Cell in<br />
Fermented Milk Products.<br />
S. Trachtová, A. Španová, B. Rittich<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry, Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 464/118, 612 00 Brno, Czech Republic<br />
The combination PCR and ethidium monoazide (EMA-PCR) is a new method<br />
for selective distinction between viable and dead bacterial cells. The general application<br />
<strong>of</strong> EMA is based on penetration into ’dead’ cells with compromised membrane<br />
(cell wall systems) integrity. DNA bound to EMA cannot be PCR amplified.<br />
Live cells remain intact and only DNA from viable cells can be amplified.<br />
Experiments were performed using probiotic bacterial strain Lactobacillus paracasei<br />
subsp. paracasei CCDM 211/06 <strong>of</strong> human origin. The experimental conditions (time <strong>of</strong><br />
cell incubation with EMA, and cell irradiation) were optimized. In the next step instead<br />
for live-dead cell distinction propidium monoazide was used. The Lactobacillus species<br />
specific primers were used for DNA amplification. The PCR products (250 bp) were<br />
separated using electrophoresis in 1.8 % agarose gel. The method was applied for live<br />
and dead cells identification in milk product (yoghurt).<br />
Keywords: ethidium monoazide, viable and dead bacterial cells<br />
2.121
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P102 Dynamic <strong>of</strong> Selected Pesticides Applied to<br />
Apples Protection During Pre-Harvest and<br />
Post-Harvest Period<br />
2.122<br />
Jana Urbanova, Ondrej Lacina, Jakub Schurek, Miroslav Lansky<br />
and Jana Hajslova<br />
Department <strong>of</strong> Food Chemistry and Analysis, Institute <strong>of</strong> Chemical Technology,<br />
Prague 6, Czech Republic<br />
jana.urbanova@vscht.cz<br />
Pesticides represent an important group <strong>of</strong> agrochemicals used for food crop<br />
protection. Even if applied in accordance with Good Agriculture Practice (GAP)<br />
principles, some residues can be detected in treated crops at the harvest time. With<br />
regard to health hazard this issue is mainly <strong>of</strong> concern when crops are used for<br />
baby food production. Infants and young children are the most vulnerable group<br />
<strong>of</strong> human population, therefore EU uniform residue limit 0.010 mg/kg has been<br />
established for any pesticide residue in processed baby food to reduce the healthrisk.<br />
To select pesticides leaving minimal residues in apples intended for baby<br />
food production, field experiments involving four apple varieties (Gloster, Golden<br />
Delicious, Idared, Melrose) were established. Pesticide preparations containing<br />
following active ingredients were applied between April and June: (i) fungicides<br />
(bitertanol, captan, cyprodinil, difenoconazole, dithianon, dodine, fluquinconazole,<br />
flusilazole, mancozeb, metiram, penconazole, pyrimethanil, tetraconazole, thiram)<br />
and (ii) insecticides (acetamiprid, et<strong>of</strong>enprox, fenoxycarb, flufenoxuron, methoxyfenozide,<br />
thiacloprid, triazamate). For post-harvest storage a range <strong>of</strong> fungicides<br />
was used: dithianon, thiram, trifloxystrobin. High performance liquid chromatography<br />
coupled with tandem mass spectrometry (HPLC-MS/MS) was employed for<br />
analysis <strong>of</strong> residues in apples at the harvest time and during storage (three and<br />
five months after harvest) and for ethylenbisdithiocarbamate (EBDC) fungicides<br />
were used solid phase microextraction followed by gas chromatography with mass<br />
spectrometry (SPME-GC-MS).<br />
This study was carried out within the project NAZV 1G46073.<br />
Keywords: pesticide, apple
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P103 Relationship between Xanthohumol, Polyphenols<br />
and flavonoids content in hop Leaves and Cones<br />
with Regard to Cultivar and Vegetation Period<br />
Eva Ürgeová, Peter Kulacs, Ľudovít Polívka<br />
Department <strong>of</strong> Biotechnologies, Faculty <strong>of</strong> Natural Sciences,<br />
University <strong>of</strong> St. Cyril and Methodius in Trnava,<br />
Nám. J. Herdu 2, 917 01 Trnava, Slovakia;<br />
eva.urgeova@ucm.sk<br />
The aim <strong>of</strong> this work was testing <strong>of</strong> content <strong>of</strong> some secondary metabolites in<br />
different cultivars <strong>of</strong> hop during vegetal period. The first samples we tested before<br />
the flowering and the second at the end <strong>of</strong> vegetal period. The experiment took place<br />
in 2007. Some relevant data from 2006 were included for comparison. The content <strong>of</strong><br />
secondary metabolites, phenol substances, flavonoids and especially xanthohumol<br />
in extracts from hop leaves and cones was definite by standard analytical methods.<br />
The content <strong>of</strong> the secondary metabolites in leaves depended on the vegetal<br />
period at first. The climatic condition for content <strong>of</strong> secondary metabolites <strong>of</strong> hop<br />
cones was met.<br />
Keywords: polyphenols, flavonoids, xanthohumol, hop<br />
2.12
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P104 Amino Acid Composition <strong>of</strong> Non-Transgenic<br />
and Ovalbumine Expressing Transgenic Alfalfa<br />
(Medicago sativa).<br />
2.12<br />
Eva Ürgeová, Juraj Faragó, Miklós Fári, Natália Faragová<br />
SARC, Research Institute <strong>of</strong> Plant Production<br />
Bratislavská cesta 122, 921 68 Piešťany, Slovak Republic<br />
farago@vurv.sk<br />
Alfalfa is the world’s most important forage crop grown as a source <strong>of</strong> proteins<br />
in animal feed. However the proteins <strong>of</strong> alfalfa are limited in the essential amino<br />
acids (EAA) methionine (Met) and cysteine (Cys). Several different transgenic approaches<br />
have been used to improve the nutritional quality <strong>of</strong> this crop, such as<br />
expression <strong>of</strong> heterologous high-Met proteins or metabolic engineering <strong>of</strong> EAA<br />
biosynthetic pathways. We introduced into alfalfa the gene Ov from Japanese quail<br />
coding for high Met+Cys containing protein ovalbumine using the Agrobacterium<br />
tumefaciens-mediated genetic transformation method. More than 100 putatively<br />
transgenic lines were regenerated in in vitro culture, and the transgenic nature <strong>of</strong><br />
regenerants was proved by gene expression bioassays, PCR analysis and Western<br />
blot analysis.<br />
HPLC analysis was applied to study the amino acid composition <strong>of</strong> leaf+stem<br />
samples <strong>of</strong> 32 transgenic plants and 2 non-transgenic isogenic and 6 non/transgenic<br />
control plants. Met+Cys content in control plants averaged 0.23 % DW and 0.25 %<br />
DW in non-transgenic isogenic plants. Transgenic plants had variable contents <strong>of</strong><br />
Met and Cys, ranging from 0.04 to 0.36 % DW for Met and 0.06 - 0.18 % DW for<br />
Cys. We could identify 3 transgenic genotypes that contained 188-233 % Met+Cys<br />
comparing the control plants.<br />
Keywords: essential amino acids, HPLC, transgenic plants
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P105 Sea Buckthorn – Source <strong>of</strong> Vitamin C and<br />
Efficient Antioxidant<br />
Milena Vespalcová, Dana Vránová, Martin Polovka, Jiřina Endstrasserová,<br />
Vojtěch Řezníček<br />
Faculty <strong>of</strong> Chemistry, BUT, Institute <strong>of</strong> Food Science and Biotechnology<br />
Purkynova 118, 612 00 Brno<br />
vespalcova@fch.vutbr.cz<br />
Sea buckthorn (Hippophae rhamnoides) is an undemanding bush giving small<br />
orange fruits. The bush comes from Asia but it has spread almost all over the world<br />
because it can be grown without special agrotechnical technology.<br />
Sea buckthorn contains lots <strong>of</strong> substances beneficial to human health, particularly<br />
vitamin C in amount larger than in other kinds <strong>of</strong> fruit. Among other substances,<br />
also carotenoids, flavonoids, essential unsatured fatty acids and phytosterols<br />
should be mentioned. Today, sea buckthorn extract is added not only in homeopathic<br />
remedies and food supplements, but also in syrups, jams, sweets, oils, face<br />
creams, shampoos, soaps, teas and many other products.<br />
The aim <strong>of</strong> presented work was the finding out the sea buckthorn cultivar with<br />
the highest content <strong>of</strong> vitamin C and the highest antioxidative capacity among 15<br />
cultivars, which were growed by Faculty <strong>of</strong> Horticulture <strong>of</strong> Mendel University<br />
<strong>of</strong> Agriculture and Forestry in Brno. Two methods have been applied for the determination<br />
<strong>of</strong> the vitamin C content in the sea buckthorn juice: HPLC and the direct<br />
coulometric determination <strong>of</strong> the vitamin C. Total antioxidative capacity <strong>of</strong> the sea<br />
buckthorn juice was measured by the EPR. The analyses indicate that the cultivars<br />
“Velkoosecký” and “Botaničeskaja” seem to be optimal as far as its vitamin C content<br />
and the antioxidative capacity is concerned.<br />
Keywords: sea buckthorn, vitamin C, antioxidative capacity<br />
2.12
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P106 Arsenic Speciation in Fish Samples Using High<br />
Performance Liquid Chromatography Coupled<br />
with Hydride Generation Atomic Fluorescence<br />
Spectrometry<br />
2.12<br />
Eva Vitoulová, Blanka Macharáčková, Miroslav Fišera, Olga Čelechovská<br />
Brno University <strong>of</strong> Technology, Institute <strong>of</strong> Food Chemistry and Biotechnologies<br />
Purkyňova 118, 612 00 Brno<br />
vitoulova@fch.vutbr.cz<br />
Arsenic is well known as a toxic element that occurs in foodstuffs in several<br />
forms. These forms have for humans different toxicity, therefore is total amount <strong>of</strong><br />
arsenic in the foodstuffs insufficient information. The aim <strong>of</strong> the present work is speciation<br />
<strong>of</strong> arsenic in fish samples. Speciation method included coupling <strong>of</strong> separation<br />
by high performance liquid chromatography and detection by hydride generation<br />
atomic fluorescence spectrometry. Fish samples were extracted using five different<br />
extraction mixtures and their efficiency was compared. Obtained results showed<br />
that in all analysed samples extractable arsenic was present in the form <strong>of</strong> nontoxic<br />
arsenobetaine.<br />
Keywords: arsenic, speciation, fish
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P107 Comparison <strong>of</strong> Aroma Pr<strong>of</strong>iles <strong>of</strong> Several Types<br />
<strong>of</strong> Dark Chocolate<br />
Eva Vítová, Blanka Loupancová, Hana Štoudková, Jana Zemanová,<br />
Libor Babák, Ivana Macků<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
evavitova@post.cz<br />
Chocolate is one <strong>of</strong> the most popular foods all over the world. This may be due<br />
to the „feel good“ effect that many people experience after indulging. Chocolate’s<br />
unique sensory characteristics, in particular flavour and texture, and some internal<br />
physiological factors are the cause <strong>of</strong> chocolate popularity.<br />
Flavour is one <strong>of</strong> the most important properties <strong>of</strong> chocolate and is the subject<br />
<strong>of</strong> extensive research. It is very complex and is determined by both the cocoa plant<br />
variety and the technology process. Its precursors are developed during fermentation<br />
and drying <strong>of</strong> cocoa beans and develop into cocoa specific aroma through Maillard<br />
reaction during roasting. All <strong>of</strong> the precursors interact to produce cocoa flavour<br />
components, such as alcohols, ethers, hydrocarbons, furans, thiazoles, pyridines,<br />
acids, esters, aldehydes, imines, amines, oxazoles, pyrazines and pyrroles. To date,<br />
descriptive studies have identified more than 600 volatile compounds in cocoa and<br />
chocolate. But it is very difficult to asses which components are really important for<br />
flavour and which are not.<br />
The aim <strong>of</strong> this work was to compare aroma pr<strong>of</strong>iles <strong>of</strong> three types <strong>of</strong> dark<br />
chocolate. Volatile aroma compounds were determined by the SPME method in<br />
conjunction with gas chromatography.<br />
Keywords: chocolate, aroma, SPME, GC<br />
2.12
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P108 Monitoring <strong>of</strong> Changes in Population <strong>of</strong> Yeasts<br />
During Fermentation <strong>of</strong> Grape Must.<br />
2.12<br />
Dana Vránová,Michaela Zdeňková, Renata Vadkertiová<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118, Brno, Czech republic<br />
vranova@fch.vutbr.cz<br />
The fermentation <strong>of</strong> grape must into wine is a complex microbiological process<br />
characterized by the presence <strong>of</strong> a large number <strong>of</strong> different microorganisms.<br />
The composition <strong>of</strong> yeasts population on grape berries and leaves plays an important<br />
role in wine fermentations, as different genera, species and strains with their<br />
metabolic activity influence the sensory quality and organoleptic characteristics <strong>of</strong><br />
wine.<br />
Yeasts associated with grape or wine ecosystem are usually classified in 15<br />
different genera: Brettanomyces/Dekkera, Candida, Cryptococcus, Debaryomyces,<br />
Hanseniaspora/Kloeckera. Kluyveromyces, Pichia, Metschnikowia, Rhodotorula,<br />
Saccharomyces, Saccharomycodes, Schizosaccharomyces, Zygosaccharomyses.<br />
The work monitors the changes in yeast population during spontaneous alcoholic<br />
fermentation <strong>of</strong> cider <strong>of</strong> Veltlin green cultivar. We isolated yeasts from vineyard<br />
ecosystem such as soil, vine leaves and grapes. Identification <strong>of</strong> the individual<br />
strains was carried out using molecular biological method <strong>of</strong> PCR-.RFLP.<br />
Keywords: Yeasts, PCR, taxonomy, wine fermentation
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2P109 Study <strong>of</strong> Stability <strong>of</strong> Cleansers Based on Active<br />
Chlorine<br />
J. Zemanova, E. Vitova, M. Dankova, M. Popelkova<br />
Department <strong>of</strong> Food Chemistry and Biotechnologies,<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkynova 118, CZ61200 Brno, Czech Republic<br />
zemanova@fch.vutbr.cz<br />
This work deals with following decrease <strong>of</strong> active chlorine in natrium hypochlorite<br />
in mixtures <strong>of</strong> cleansers, where natrium hypochlorite has disinfection effect.<br />
Hypochlorite belongs between oxygenous chlorine compounds that decompose<br />
slowly. Slow decomposition entails step by step decreasing oxidizing ability <strong>of</strong><br />
hypochlorite. It is possible to slow down instability <strong>of</strong> hypochlorite by removing <strong>of</strong><br />
causes <strong>of</strong> decomposition or by adition <strong>of</strong> stability additives.<br />
There was immixtured two sorts <strong>of</strong> stability substances into two types <strong>of</strong> samples<br />
and in final appreciation the effect <strong>of</strong> checking stabilization was recognitioned.<br />
The studying <strong>of</strong> content <strong>of</strong> active chlorine in samples was provided by iodometric<br />
titration.<br />
Lastly microbiology tests on disinfection effect <strong>of</strong> rest quantity <strong>of</strong> active chlorine<br />
in samples was effected. There was all results statistically evaluationed.<br />
Keywords: hypochlorite, stability, cleansers<br />
2.12
Section 2 – Food Chemistry & Biotechnology<br />
Posters<br />
2-P110 Vegetable Oils for Cosmetics – Evaluation<br />
<strong>of</strong> their Effects on Human Skin<br />
2.1 0<br />
J. Zemanova, H. Stoudkova, E. Vitova<br />
Department <strong>of</strong> Food Chemistry and Biotechnologies, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkynova 118, CZ61200 Brno, Czech Republic<br />
zemanova@fch.vutbr.cz<br />
The aim <strong>of</strong> this work was to focus on some vegetable oils commonly used in<br />
cosmetics, review their characters and to evaluate their effects on human skin by<br />
measuring some skin parameters.<br />
For these experiments there were choosed macadamia oil, castor oil, sunflower<br />
oil, olive oil, lineseed oil, etc.<br />
The skin parameters were assessed after applications <strong>of</strong> selected vegetable<br />
oils on human skin by measuring with diagnostic instrument MPA5 (Courage and<br />
Kazaka, Germany). The experiments proceeded in given intervals and they were<br />
statistically processed.<br />
Keywords: vegetable oils, human skin
Section 3:<br />
Chemistry <strong>of</strong> Inorganic<br />
Materials<br />
.1
Lectures<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L01 Non -Traditional Binders and Composites Tested<br />
at the Student Laboratories <strong>of</strong> the Iinstitute <strong>of</strong><br />
Materials Chemistry, Faculty <strong>of</strong> Chemistry, Brno<br />
University <strong>of</strong> Technology<br />
Jiří Brandštetr, Jaromír Havlica, Tomáš Opravil, František Šoukal<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 61200 Brno<br />
brandstetr@fch.vutbr.cz<br />
Recently, the effort to increase the productivity <strong>of</strong> materials results a.o. in the<br />
utilization <strong>of</strong> different non-traditional cements and composites based preferably on<br />
mineral “wastes” – secondary industrial products, which saves natural mineral resources<br />
and decreases the amount <strong>of</strong> discharged materials on the dumping sites as<br />
well as the CO2 emissions, exhibiting thus economical and ecological effect. Novel<br />
chemical and mineral admixtures enable the preparation <strong>of</strong> “tailored” material <strong>of</strong><br />
demanded special properties. Very <strong>of</strong>ten, lack <strong>of</strong> information and/or unstable quality<br />
<strong>of</strong> secondary materials is the real reason <strong>of</strong> their insufficient use. Therefore, better<br />
publicity, adequate education at schools <strong>of</strong> all types, meetings and conferences<br />
can play very important role. At the University <strong>of</strong> Technology in Brno, the students<br />
in their diploma and postdoctoral theses solve in the laboratories many <strong>of</strong> these<br />
problems mostly from chemical point <strong>of</strong> view with the final objective to enlarge the<br />
assortment <strong>of</strong> binders and mineral composites.<br />
Keywords: materials productivity, mineral wastes, alkali activation,<br />
geopolymers, novel composites, binders, concrete, admixtures<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L02 Influence <strong>of</strong> Phosphate Content on Formation <strong>of</strong><br />
Dicalciumsilicate Modifications<br />
.<br />
Jaromír Havlica, Teodor Staněk, Jan Baráček, Petr Ptáček, František Šoukal<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Purkyňova118, 61200 Brno<br />
havlica@fch.vutbr.cz<br />
Cement rotary kilns with temperatures about 1450°C are <strong>of</strong>ten used for disposal<br />
<strong>of</strong> risk compounds with organic nature. The combination <strong>of</strong> organic and inorganic<br />
byproducts contribute contemporary to changes <strong>of</strong> phase composition product.<br />
Utilization <strong>of</strong> meat and bone meal is one <strong>of</strong> ecologically attractive activity, where<br />
both effects may be considered as significant importance besides disposal also the<br />
advantageous formation <strong>of</strong> low energy cements.<br />
The incorporation <strong>of</strong> phosphates content in Portland cement clinker is limited<br />
because, increasing presence <strong>of</strong> phosphate ions in system Ca2SiO4- Ca3SiO3 results<br />
both in suppression <strong>of</strong> tricalcium silicate (alite) content and preference in formation<br />
<strong>of</strong> required beta form <strong>of</strong> dicalcium silicate (belite) in manufactured product.<br />
On the other side both phenomena are necessary conditions for processing <strong>of</strong> belite<br />
cement, where beta form <strong>of</strong> dicalcium silicate and absence <strong>of</strong> high temperature tricalcium<br />
silicate are favorable for reducing <strong>of</strong> calcium oxide content in cement. In<br />
next the lowering <strong>of</strong> lime stone consumption is important for reducing <strong>of</strong> monitored<br />
non required compound - carbon dioxide. Consequence <strong>of</strong> elimination <strong>of</strong> alite and<br />
followed temperature reduction may enable probably utilization <strong>of</strong> calcium oxide<br />
directly in cement without risk <strong>of</strong> delayed hydration processes.<br />
Keywords: meat and bone meal, calcium phosphate, calcium silicate,<br />
belite cement
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L03 The Efficacy <strong>of</strong> Deacidification by Aerosols <strong>of</strong><br />
MgO and Dolomite Microparticles<br />
S. Holubková, M. Jablonský, M. Bajziková, J. Hanus, J. Rychlý, V. Bukovský,<br />
S. Katuscak<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology in Bratislava,<br />
Radlinskeho 9, SK-812 37 Bratislava, Slovak Republic<br />
silvia.holubkova@stuba.sk<br />
The most environmentally friendly technological platform (TP) for the deacidification<br />
<strong>of</strong> books is air or its mixtures with water. This ecological carrier has been<br />
used to carry deacidifying particles, such as MgO and dolomite (CaCO 3 .MgCO 3 )<br />
dispersed in the air (SoBu process), MgO and CaCO 3 dispersed in mixture <strong>of</strong> air<br />
and water vapor (Libertec). The MgO has also been used in a less eco-perspective<br />
perfluorinated carriers, non-ozone depleting conservation TP although possesing<br />
global warming potential which is 320 - 8400 higher than CO 2 (<strong>Book</strong>keeper). The<br />
efficacy <strong>of</strong> the air-water- MgO–dolomite TP has been studied and compared with<br />
the other TPs. The wood-containing paper test books were deacidified in SoBu industrial<br />
plant, air-conditioned at the relative humidity RH = 50 %, and aged in a sealed<br />
bags at 98±2°C. The kinetics <strong>of</strong> folding endurance (ω), tensile strength (l t ) were<br />
measured and the indexes <strong>of</strong> relative increase <strong>of</strong> the lifetime (S τω ), the folding endurance<br />
(S ω,t ) and the tensile strength (S lt,t ) were calculated. The process was evaluated<br />
through multifactorial evaluation according to requirements <strong>of</strong> the Consortium<br />
Kniha SK (CK SK ) and the Library <strong>of</strong> Congress (LOC). The air-water-MgO-dolomite TP<br />
deacidification fulfills both the CK SK and LOC requirements for the lifetime increase<br />
(S τω =4,7), improves the mechanical permanence sufficiently (S ω,15 =33,6; S lt,15 =1,24).<br />
Keywords: deacidification, efficacy<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L04 Distribution <strong>of</strong> Heavy Metals in the Products <strong>of</strong><br />
Magnetic Separation <strong>of</strong> Siderite Ore From Nižná<br />
Slaná<br />
.<br />
Slavomír Hredzák, Michal Lovás, Štefan Jakabský, Dana Gešperová<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> the Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice, Slovakia<br />
hredzak@saske.sk<br />
The contribution deals with the dry high intensity magnetic separation (HIMS)<br />
<strong>of</strong> siderite ore fines, namely grain size <strong>of</strong> 0–4 mm at four values <strong>of</strong> magnetic induction.<br />
The distribution <strong>of</strong> utility and waste components, such as Fe, Mn, SiO 2 , Al etc.<br />
into separation products have been observed. An attention was also paid to heavy<br />
metals, namely Cu, Zn, Pb, Ni, As and Hg.<br />
Naturally, an increasing <strong>of</strong> magnetic induction resulted in enhancement <strong>of</strong><br />
mass yield into magnetic product from 33 to 88 %. It was proven, that product with<br />
content <strong>of</strong> 29–32 % Fe and 5–9 % <strong>of</strong> SiO 2 can be won in comparison with 27–28 % Fe<br />
and 11–12 % SiO 2 in the feed. As to non-magnetic product content <strong>of</strong> Fe decreases<br />
from 25 to 12 %, conversely, content <strong>of</strong> SiO 2 enhances from 14 to 39 %.<br />
The recovery <strong>of</strong> Fe and Mn into magnetic product gradually increases from 36<br />
to 95 % and in the case <strong>of</strong> SiO 2 , it is from 15 to 63 %. The content <strong>of</strong> heavy metals<br />
in the feed attains the values: 100–160 ppm <strong>of</strong> Cu, 90–92 ppm <strong>of</strong> Zn, 11–14 ppm <strong>of</strong><br />
Pb, 19–23 ppm <strong>of</strong> Ni, 580–670 ppm <strong>of</strong> As and 1.3–1.6 ppm <strong>of</strong> Hg. Separation tests<br />
showed that recovery <strong>of</strong> heavy metals into magnetic product increases with growing<br />
value <strong>of</strong> magnetic field induction. It indicates fine intergrowth <strong>of</strong> heavy metals<br />
bearing phases, namely sulphides with the main utility minerals – siderite and ankerite.<br />
Keywords: magnetic separation, distribution <strong>of</strong> ore components
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L05 Magnetically Modified Bentonite and Study <strong>of</strong><br />
its Improved Sorption Properties<br />
Z. Orolínová, A. Mockovčiaková<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice, Slovakia<br />
orolinova@saske.sk<br />
It is well known, that clay minerals and iron oxide particles are good sorbents<br />
<strong>of</strong> heavy metals, therefore it could be interesting to combine the adsorption properties<br />
<strong>of</strong> bentonite with the magnetic properties <strong>of</strong> iron oxides. In this work the<br />
natural clay rock bentonite was modified by the magnetic particles with the aim to<br />
enhance its sorption properties. The bentonite/iron oxide composites were prepared<br />
in different weight ratios at two selected temperatures 20 and 85 °C and characterized<br />
by powder X-ray diffraction (XRD) analysis and Mössbauer spectroscopy. The<br />
real weight ratios <strong>of</strong> clay/iron oxide composites were determined by magnetization<br />
measurements. The morphologies <strong>of</strong> the investigated samples were observed<br />
by scanning electron microscopy (SEM). The surface and pore changes <strong>of</strong> natural<br />
bentonite after magnetic modification was studied by nitrogen adsorption measurements.<br />
The sorption properties <strong>of</strong> natural bentonite and composite materials obtained<br />
from this study were compared.<br />
Keywords: bentonite, iron oxide particles, Mössbauer spectroscopy,<br />
surface and pore properties<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L06 Reductive Dissolution <strong>of</strong> Ferric Sulfate and<br />
Ferric Iron Oxihydroxides by Acidophilic<br />
Heterotrophic Bacteria<br />
.10<br />
Zuzana Pállová, Daniel Kupka, Alexandra Vašková, Zuzana Orolínová,<br />
Vladimír Šepelák.<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, 043 53 Košice, Slovak Republic,<br />
pallova@saske.sk<br />
Reductive dissolution <strong>of</strong> synthetic iron(III)-oxides and oxi-hydroxides was carried<br />
out under acidic conditions in the presence <strong>of</strong> acidophilic heterotrophic ironreducing<br />
bacterium Acidiphilium SJH. Five synthetic iron-minerals; α-FeO(OH)<br />
(goethite), γ-FeO(OH) (lepidocrocite), α-Fe 2 O 3 (hematite), γ-Fe 2 O 3 (maghemite) and<br />
Fe 3 O 4 (magnetite) were prepared by either oxidative hydrolysis from solutions containing<br />
Fe 2+ or by hydrolysis from ferric iron solutions. The purity <strong>of</strong> “as prepared”<br />
mineral phases was confirmed by XRD analysis and Mössbauer spectroscopy. Ferric<br />
ions from the poorly soluble minerals served as sole electron acceptor for bacterial<br />
respiration. Bacteria reduced ferric iron to ferrous iron using D-galactose as the<br />
electron donor. The abiotic rates <strong>of</strong> iron extraction correlate with the solubility <strong>of</strong><br />
the minerals. The specific initial rates <strong>of</strong> iron dissolution (μg m 2 h -1 ) normalized to<br />
biomass concentration related to absorbance unit OD 600 = 1.0 were in the range <strong>of</strong><br />
0.53 to 26.46 μg m 2 h -1 and were in the order magnetite >lepidocrocite >maghemite ><br />
hematite> goethite. The rate <strong>of</strong> bacterial reduction <strong>of</strong> soluble Fe 3+ was by far higher<br />
than the rates <strong>of</strong> solid ferric iron compounds. Bacterial transformation <strong>of</strong> ferric to<br />
ferrous iron and vice versa takes place in many important environmental processes<br />
and could be used in many mineral processing..<br />
Keywords: Iron oxides, reductive dissolution, Acidiphilium
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L07 The Effect <strong>of</strong> Hydrogen on Combustion <strong>of</strong><br />
Natural Gas<br />
Ondřej Prokeš, Daniel Tenkrát, Aleš Doucek<br />
Ústav plynárenství, koksochemie a ochrany ovzduší; VŠCHT Praha<br />
Technická 5; 166 28 Praha 6<br />
prokeso@vscht.cz<br />
Hydrogen is regarded as a fuel <strong>of</strong> choice for 21 st century. A lot <strong>of</strong> governments<br />
expect that the hydrogen takes up the leading role in the future energetic concepts<br />
<strong>of</strong> many industrial countries. The pure combustion <strong>of</strong> hydrogen produces extremely<br />
low or zero emissions. Needless to say that only water is raised during the hydrogen<br />
combustion with oxygen. If an air is used, moderate among <strong>of</strong> nitrogen oxides<br />
is possible to detect in exhaust gases. No doubt, it is evidently that the combustion<br />
<strong>of</strong> hydrogen is most ecological way how to produce an electricity, heat or cold in<br />
comparison with other fossil fuels.<br />
Hydrogen could be transported by all common ways – by ships, by railways or<br />
by trucks. Yet it is possible and efficient to use for distribution the accessible natural<br />
gas pipeline network. It means that both system natural gas and hydrogen could<br />
exist and operate together in the same pipeline. We can expect several problems<br />
during the transportation, distribution and utilization <strong>of</strong> hydrogen transported by<br />
the pipeline system which was built only for natural gas. Another aim <strong>of</strong> this lecture<br />
contains the analyses <strong>of</strong> the critical aspects by the combustion <strong>of</strong> the mixture hydrogen/natural<br />
gas with the different content <strong>of</strong> natural gas (from 3 up to 60 Vol. %).<br />
Keywords: hydrogen, natural gas, combustion<br />
.11
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L08 The IR Spectroscopy Study <strong>of</strong> Particle Size<br />
Influence on Course <strong>of</strong> Kaolin Dehydroxylation<br />
.12<br />
Petr Ptáček, Dana Kubátová, Jaromír Havlica, František Šoukal,<br />
Tomáš Opravil<br />
Institute <strong>of</strong> Materials Chemistry, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno, CZ-612 00, Czech Republic,<br />
ptacek@fch.vutbr.cz<br />
The particle size effect on dehydroxylation <strong>of</strong> washed kaolin was determined<br />
by mid-infrared spectroscopy via sets <strong>of</strong> isothermal – quasiisobaric experiments in<br />
temperature range from 150 to 650 °C. Correlations between primary spectroscopic<br />
variables, i.e. A amplitude), lmax (peak’s wavelength) and w (half-width <strong>of</strong> absorbtion<br />
band), temperature <strong>of</strong> dehydroxylation and particle size were investigated.<br />
Keywords: China clay, kaolinite dehydroxylation, meta-kaolinite
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L09 Critical Particulates fineness <strong>of</strong> the Air<br />
Classification Processes<br />
Tomáš Svěrák, Ondřej Kozdas, Vítězslav Frank<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry, Institute <strong>of</strong> Materials Science,<br />
Purkynova 118, 612 00 Brno, Czech Republic;<br />
sverak@fch.vutbr.cz<br />
Air classifiers <strong>of</strong> particulate material operate on the basis <strong>of</strong> air-stream power<br />
and centrifugal forces equilibrium. This equilibrium takes an effect to separate particles<br />
which are dispersed and transported in the air stream lead to the working area<br />
<strong>of</strong> classifier rotors. The cylindrical rotor classifier with the radial flow <strong>of</strong> air stream<br />
is the basic air classifier configuration <strong>of</strong> very fine particles processes. This classifier<br />
configuration provides very reliable classifier processes with a sharp cut <strong>of</strong> grainsizing.<br />
But when the fineness <strong>of</strong> classified powdery material tends to the medium<br />
grain size d50 <strong>of</strong> about 1 micrometer and some adhesion forces take place there – the<br />
classifier system does not function any more. One <strong>of</strong> the reasons <strong>of</strong> this malfunction<br />
is the fact that the radial velocity <strong>of</strong> the “critical size” particles extremely decreases<br />
in the working area <strong>of</strong> classifier rotor and the concentration <strong>of</strong> the “critical size” particles<br />
fatally increases. The correct process <strong>of</strong> particle classification stops under the<br />
above process conditions. Authors discuss condition <strong>of</strong> the effect formation.<br />
Keywords: particulate solids processes, separation, air-classification<br />
.1
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L10 Determination the Reaction Order for Fast<br />
Formation <strong>of</strong> CuS 2 O 3<br />
.1<br />
Mihaela Ligia Ungureşan, Francisc Vasile Dulp<br />
Technical University <strong>of</strong> Cluj-Napoca, Chemical Department,<br />
103-105 Muncii Bvd., 400641, Cluj-Napoca, Romania<br />
Mihaela.Unguresan@chem.utcluj.ro<br />
The kinetics <strong>of</strong> the redox reaction between copper ions and thiosulfate ions,<br />
respectively the formation <strong>of</strong> the intermediate complex, CuS 2 O 3 , are investigated.<br />
The reaction order, with respect to the intermediate complex depends upon the concentrations<br />
<strong>of</strong> the reactants. The kinetics <strong>of</strong> fading away <strong>of</strong> the color <strong>of</strong> this complex<br />
has been traced spectrophotometrically with a stopped-flow apparatus. The experimental<br />
reaction order is consistent with the concentration <strong>of</strong> the reactants.<br />
Keywords: Preequilibrium Kinetics, Fast Redox Reaction,<br />
Intermediate Complex CuS 2 O 3 .
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Lectures<br />
3-L11 Ceramic Petrography <strong>of</strong> the Loštice Pottery<br />
Dalibor Všianský, Miroslava Gregerová, Martin Hložek,<br />
Ústav geologických věd, PřF MU<br />
Kotlářská 2, 61137 Brno,<br />
mirka@sci.muni.cz<br />
The paper summarizes the results <strong>of</strong> micropetrographic, geochemical and experimental<br />
examination <strong>of</strong> the mediaeval pottery from Loštice. The burning temperature<br />
and the affect <strong>of</strong> garnets on the formation <strong>of</strong> “blebs” were experimentally<br />
tested. A clay nodule found during archaeological works was used for a part <strong>of</strong><br />
tumbler replicas’ production as a plastic raw material. Another part <strong>of</strong> replicas was<br />
made <strong>of</strong> local loess. (At the temperature higher than 1200 °C, the replicas made <strong>of</strong><br />
loess collapsed.) The results showed that some <strong>of</strong> the pottery groups were made <strong>of</strong><br />
the same, or very similar, plastic raw material with petrographically different nonplastics.<br />
The ceramic tumblers <strong>of</strong> the (010) and (020) groups were made <strong>of</strong> clay soil<br />
with the addition <strong>of</strong> almandine garnet as non-plastics. The “blebs” form by thermal<br />
decomposition <strong>of</strong> almandine. Cordierite and possibly also sekaninaite and ossumilite<br />
crystallize from the melt. The experiments verified that the burning temperature<br />
had reached 1200–1250 °C.<br />
Keywords: ceramic, petrography, pottery<br />
.1
Posters<br />
.1
3-P01 Optimalization <strong>of</strong> Lead Sulphide<br />
Mechanochemical Synthesis<br />
M. Achimovičová, A. Mockovčiaková, E. Dutková<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice, Slovakia<br />
achimovic@saske.sk<br />
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
The mechanochemical synthesis <strong>of</strong> PbS was performed by high energy milling<br />
<strong>of</strong> lead acetate and sodium sulphide in a planetary ball mill. Two preliminary experiments<br />
on using the process control agent-stearic acid were realized and the results<br />
concerning the particles size distribution and specific surface area were encouraging<br />
– thus a method <strong>of</strong> statistical factorial design – 1 st order model fitting 2 3 , with<br />
3 examined factors was used: the mean particle size as the measured response and<br />
time <strong>of</strong> mechanochemical synthesis-x 1 , revolutions <strong>of</strong> mill-x 2 and weight <strong>of</strong> stearic<br />
acid-x 3 – as independent factors. Basing on the design matrix a mathematical function<br />
Y = 1.91 – 0.12 x 1 – 0.47 x 2 + 0.12 x 1 x 3 – 0.43 x 2 x 3 , was obtained.<br />
It resulted from this function that the mean particle size <strong>of</strong> synthesized PbS<br />
nanoparticles was most influenced by revolutions <strong>of</strong> mill, less influenced by time<br />
<strong>of</strong> mechanochemical synthesis and the weight <strong>of</strong> stearic acid did not influence the<br />
mean particle size <strong>of</strong> synthesized PbS particles basically.<br />
X-ray diffraction analysis, particle size distribution analysis, specific surface<br />
area measurement and scanning electron microscopy were used for a characterization<br />
<strong>of</strong> microstructure and properties <strong>of</strong> synthesized PbS. UV-VIS spectroscopy was<br />
used for determination <strong>of</strong> size <strong>of</strong> the smallest PbS particles obtained by mechanochemical<br />
synthesis.<br />
Keywords: PbS nanoparticles, Mechanochemical synthesis<br />
.1
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P02 Synthesis <strong>of</strong> Doped Lanthanum Ferrite<br />
Perovskites<br />
.20<br />
Eva Bartoníčková, Jaroslav Cihlář<br />
Department <strong>of</strong> Physical and Applied Chemistry, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
bartonickova@fme.vutbr.cz<br />
La 1-x Sr x Fe 1-y Ti y O 3-d where x = 0.8 and 0.8 ≥ y ≤ 0.2 perovskite systems were prepared<br />
via several methods. Both novel methods spray pyrolysis and glycine/nitrate<br />
combustion synthesis were compared with conventional solid state reaction with<br />
mechanical activation.<br />
The „wet chemical routes“<strong>of</strong> preparation proceeded from aqueous solution <strong>of</strong><br />
nitrates <strong>of</strong> appropriate metals. As precursors <strong>of</strong> conventional route the homogenous<br />
mixtures <strong>of</strong> appropriate metal oxides were used. The properties <strong>of</strong> prepared ceramic<br />
powders were studied by XRD, chemical analysis, SEM, particle size determination,<br />
BET method, SEM. The comparison <strong>of</strong> products properties <strong>of</strong> prepared ceramic<br />
powders shows that the novel methods lead to improved final properties then the<br />
conventional technique. Nanostructured phase pure doped lanthanum ferrites with<br />
high specific surface area were prepared by spray pyrolysis.<br />
Keywords: lanthanum ferrite, solid state reaction
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P03 Effect <strong>of</strong> Heat Treatment on the Al + Si<br />
Diffusion Coatings on Ni-Based Alloys<br />
Ladislav Čelko, Lenka Klakurková<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Mechanical Engineering<br />
Technická 2896/2, 616 69 Brno, Czech Republic<br />
ycelko00@stud.fme.vutbr.cz<br />
The nickel based alloys surface structure stability are recently ensured by use<br />
<strong>of</strong> many types <strong>of</strong> protective coatings. One <strong>of</strong> this types <strong>of</strong> coatings are diffusion<br />
ones. These coatings are based on saturation <strong>of</strong> Ni-based substrates with elements<br />
Al, Cr, Si or their combinations. This can lead to an improvement <strong>of</strong> the oxidation,<br />
corrosion and wear resistance <strong>of</strong> nickel based alloys surfaces.<br />
This paper deals with preparation <strong>of</strong> Al+Si diffusion coatings on the nickel<br />
based substrates from slurries annealed at 1000°C. The phase transformations and<br />
element interactions were studied. As a substrate, Ni <strong>of</strong> commercial purity, Ni20Cr<br />
and Inconel 713 LC alloys were used. During annealing, the elements from coating<br />
interact with the substrate while forming intermetallic protective layer and an interaction<br />
zone between the protective layer and substrate.<br />
For this study the light microscopy, scanning electron microscopy, energy dispersive<br />
microanalyses, microhardness measurements and image analysis methods<br />
were used.<br />
Keywords: Diffusion coatings; Aluminides NiAl, Ni3Al; Diffusion;<br />
Heat treatment; EDS analyses<br />
.21
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P04 Chemical Analysis <strong>of</strong> Al and Si Surface Layers on<br />
Steels<br />
.22<br />
Pavel Doležal, Ladislav Čelko, Aneta Němcová, Lenka Klakurková<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Mechanical Engineering<br />
Technická 2896/2, 616 69 Brno, Czech Republic<br />
pavdol@email.cz<br />
Properties <strong>of</strong> the metallic materials working at higher temperatures are strongly<br />
dependent on degradation processes imposed. Among the most important degradation<br />
processes belong: high temperature oxidation, corrosion and erosion. Surface<br />
modifications research and development currently takes place in order to improve<br />
properties and usability <strong>of</strong> these materials.<br />
One <strong>of</strong> many possibilities to ensure an improvement <strong>of</strong> the mettalic materials’<br />
surface properties is use <strong>of</strong> the diffusion coatings. These are based on substrate<br />
surface saturation with Al, Cr, Si and their combinations. These elements are able to<br />
create compact protection intermetallic layer on the metallic substrate.<br />
This paper deals with phase transformations analysis, study <strong>of</strong> interaction <strong>of</strong><br />
several elements between coating and substrate, formation <strong>of</strong> diffusion coating under<br />
different high temperature conditions. For evaluation and determination <strong>of</strong> diffusion<br />
coatings transformations the light microscopy, scanning electron microscopy,<br />
energy dispersive microanalyses, glow discharge optical emission spectrometry<br />
and image analyses methods were used.<br />
Keywords: Diffusion; Aluminides, Miscelaneous; Protective layers;<br />
Slurry deposition; Chemical analyses
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P05 Synthesis <strong>of</strong> Belite Cement from Coal Fly Ash<br />
Ivana Fiľková, Nadežda Števulová<br />
Technical University <strong>of</strong> Kosice, Civil Engineering Faculty<br />
Vysokoškolská 4, 042 00 Košice, Slovakia<br />
Ivana.Filkova@tuke.sk<br />
The Portland cement is one <strong>of</strong> the most consumption materials in the world.<br />
The production <strong>of</strong> this kind <strong>of</strong> cement is material and energetic demanding process<br />
and for that reason there is a growing interest in synthesis <strong>of</strong> belite cement motivated<br />
by economical implications and environmental concerns. The replacement <strong>of</strong><br />
Portland cement by belite cement presents many positive aspects, such as energy<br />
and raw materials savings.<br />
This kind <strong>of</strong> cement has high flow ability, high strength, good durability and<br />
super low heat <strong>of</strong> hydration. Belite cement is ideal cementitious material realizing<br />
concrete high performance and especially suitable for mass concrete construction.<br />
In this paper, the results <strong>of</strong> hydrothermal-calcination route <strong>of</strong> belite cement<br />
preparing from mixture consisting <strong>of</strong> coal fly ash and CaO addition (CaO/SiO 2 = 2) at<br />
reaction parameters optimization are presented.<br />
Keywords: belite cement, belite, coal fly ash<br />
.2
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P06 Microbiologically influenced corrosion <strong>of</strong><br />
concrete<br />
.2<br />
Vlasta Harbuľáková, Adriana Eštoková, Nadežda Števulová,<br />
Alena Luptáková<br />
Department <strong>of</strong> Material and Environmenal Engineering, Faculty <strong>of</strong> Civil Engineering,<br />
Technical University <strong>of</strong> Košice,<br />
Vysokoškolská 4, Košice, Slovakia<br />
vlasta.harbulakova@tuke.sk<br />
Microbially influenced corrosion studies (MIC) microbial activity impact on<br />
the durability <strong>of</strong> concrete materials. The role <strong>of</strong> microorganisms in concrete corrosion<br />
processes has been linked to the generation <strong>of</strong> sulfuric acid and nitric acids by<br />
sulfate- reducing bacteria (SRB), sulfur oxidizing bacteria and nitrifying bacteria. A<br />
most unfriendly act played by microorganisms is to colonize bi<strong>of</strong>ilms and to utilize<br />
chemical reactions to degenerate the structural materials. The biogenic acid cause<br />
dissolution <strong>of</strong> calcium containing minerals from the concrete matrices.<br />
The various concrete samples MIC was studied under model conditions by<br />
simulation <strong>of</strong> a sulfuretum. The Acidithiobacillus thiooxidans, Acidithiobacillus<br />
ferooxidans and sulfate - reducing bacteria SRB bacteria under optimal growth<br />
conditions were used. Experiments took place under anaerobic conditions during<br />
80 days at pH 7.5. The application <strong>of</strong> individual bacterial culture on the concrete<br />
samples this simulation <strong>of</strong> sulfuretum led to a greater concrete surface deterioration.<br />
The change <strong>of</strong> the concrete samples weight and change <strong>of</strong> the pH <strong>of</strong> the liquid<br />
phase was evaluated. The significant loss <strong>of</strong> concrete sample weight was observed.<br />
The concentration <strong>of</strong> calcium and silicium in the solution was determinated by AAS<br />
method. The high concentration <strong>of</strong> calcium ions in comparison with silicium ion<br />
released from concrete samples were found out in the solution.<br />
Keywords: biocorrosion, concrete, MIC
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P07 Influence <strong>of</strong> Salts Admixtures on Gelation<br />
Process <strong>of</strong> Silica<br />
Jaromír Havlica, Petr Ptáček, František Šoukal, Martin Zmrzlý<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Purkyňova118, 61200 Brno<br />
havlica@fch.vutbr.cz<br />
Dissolution <strong>of</strong> salts in electrolyte in coexistence with silica sol causes decreasing/increasing<br />
<strong>of</strong> pH value. During addition <strong>of</strong> various inorganic or organic compounds<br />
the stability <strong>of</strong> sol/gel is changed and obtained gel product is characterized<br />
by modification <strong>of</strong> gelation kinetics (ageing), mechanism <strong>of</strong> process.<br />
Ageing <strong>of</strong> silica sol based solution (TOSIL) with sodium hydroxide, sodium acetate<br />
trihydrate, calcium chloride hexahydrate, sodium chloride, calcium sulphate<br />
dihydrate, sodium sulphate, calcium nitrate tetrahydrate, sodium nitrate, and sodium<br />
oxalate resp. has been observed and analyzed. Evaluation <strong>of</strong> gel formation<br />
parameters may be used for design <strong>of</strong> optimum condition for control <strong>of</strong> properties<br />
<strong>of</strong> resulting gel.<br />
Keywords: silica sol, gelation, ageing<br />
.2
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P08 Thaumasite preparation<br />
.2<br />
Markéta Hermanová, Vítězslav Frank<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118,612 00 Brno, Czech Republic<br />
hermanova@fch.vutbr.cz<br />
Presented work deals with preparation <strong>of</strong> thaumasite from different starting raw<br />
materials. The influence <strong>of</strong> physical conditions (like temperature, time, humidity)<br />
and storage conditions on thaumasite formation was studied. The phase composition<br />
<strong>of</strong> prepared samples was analyzed by XRD. The morphology <strong>of</strong> prepared thaumasite<br />
was studied by scanning electron microscope (SEM). It was showed, that thaumasite<br />
is formed at temperatures between 0 and 5 °C and under high humidity. Under these<br />
conditions, thaumasite was found already after two months.<br />
Keywords: thaumasite, thaumasite preparation
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P09 An Application <strong>of</strong> Al-Si Layer on Nickel-Based<br />
Superalloys and their Analysis<br />
Martin Juliš, Simona Pospíšilová<br />
BUT, Faculty <strong>of</strong> Mechanical Engineering<br />
Technická 2896/2, 616 69 Brno<br />
pospisilova@fme.vutbr.cz<br />
Production <strong>of</strong> new generation <strong>of</strong> aircraft gas turbine engines is based on designing<br />
new constructions and materials, which make it possible to operate under<br />
still more severe conditions. The key assembly <strong>of</strong> the engine is its turbine, whose<br />
materials and design determine the tolerable gas temperature. Increased inlet gas<br />
temperatures resulted in the shortening <strong>of</strong> the service life <strong>of</strong> the blades protected<br />
with diffusion coatings. New principles <strong>of</strong> coating deposition opened up new possibilities<br />
for purposive improvement <strong>of</strong> coating compositions and variation <strong>of</strong> their<br />
properties.<br />
This paper is focused on microstructure and chemical analysis <strong>of</strong> protective<br />
layers created by co-deposition <strong>of</strong> Al and Si on nickel-base superalloys INCO 713 LC<br />
and INCO 738 LC after thermal and thermal-stress exposition and on microstructure<br />
and properties <strong>of</strong> basic materials (substrates). The contribution also shows creep<br />
and low fatique tests results for both superalloys with and without a protective<br />
layer.<br />
Keywords: Al-Si layer, nickel-based superalloy<br />
.2
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P10 Alkaline Modified Coal Fly Ash as an Addition<br />
to Concrete<br />
.2<br />
Jozef Junák, Nadežda Števulová<br />
Technical University <strong>of</strong> Košice, Civil Engineering Faculty,<br />
Vysokoškolská 4, 04200 Košice, Slovakia<br />
jozef.junak@tuke.sk<br />
Utilization <strong>of</strong> coal fly ash in concrete production is beneficial from the point<br />
<strong>of</strong> view <strong>of</strong> resource conservation, energy saving and CO 2 emission reduction and it<br />
contributes to solution <strong>of</strong> problems with the disposal <strong>of</strong> this waste kind.<br />
In this paper, the results <strong>of</strong> coal fly ash modification for its using in material and<br />
environmental engineering are presented. Alkaline activation influence <strong>of</strong> coal fly ash<br />
and its mixtures with Portland cement in an aqueous NaOH solution during hydrothermal<br />
treatment as well as the influence <strong>of</strong> cement replacement by fly ash on zeolite phase<br />
formation and compressive strength development <strong>of</strong> 28 and 90 days hardened coal fly<br />
ash/cement composites was investigated. Study <strong>of</strong> zeolite formation in composites was<br />
carried out by XRD analysis. Compressive strengths <strong>of</strong> hardened composites based on<br />
alkaline activated coal fly ash/cement mixture and on cement replacement by starting<br />
and zeolitized coal fly ash were compared to referential composite without coal fly ash<br />
and evaluated according to the STN EN 450 by the value <strong>of</strong> relative strength. The results<br />
<strong>of</strong> relative compressive strengths <strong>of</strong> studied composites confirm that the formation <strong>of</strong><br />
zeolitic structures during hardening <strong>of</strong> mixtures plays an important role at compaction<br />
<strong>of</strong> system.<br />
Keywords: coal fly ash, alkaline treatment, zeolite
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P11 Elements Interaction Analyses During<br />
Preparation <strong>of</strong> Al-Al 3 Ni Eutectic Composites<br />
Lenka Klakurková, Ladislav Čelko, Pavel Doležal, Ondřej Man,<br />
Karel Němec<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Mechanical Engineering<br />
Technická 2896/2, 616 69 Brno, Czech Republic<br />
klakurkova@fme.vutbr.cz<br />
Understanding <strong>of</strong> equilibrium and non-equilibrium thermodynamic phase<br />
transformations is one <strong>of</strong> the basic condition for design <strong>of</strong> intermetallic particle<br />
strenghted composites. The Al-Ni binary system is already used for high temperature<br />
applications (Nickel based superalloys and high temperature protective coatings)<br />
where the Ni3Al and NiAl intermetallics widely appear. But this system contains<br />
another intermetallic compounds Al3Ni, Al3Ni2, Al3Ni5 which are neglected<br />
in high temperature studies.<br />
These intermetallic compounds can be employed as strenghtening phases in<br />
Al-based composites. The advantages <strong>of</strong> these materials are low density and relatively<br />
good chemical resistance. They can reach attractive properties in combination<br />
with less known Al-Ni intermetallic phases strenghtening.<br />
This paper is focused on the developement <strong>of</strong> Al-based composites prepared<br />
by HVOF nickel powder deposition on Al substrate. Use <strong>of</strong> this method alone is<br />
not sufficient without a post-deposition heat treatment at temperatures close to the<br />
melting point <strong>of</strong> pure Al. The temperatures for difusion and formation <strong>of</strong> this intermetallic<br />
phases are in the range from 600°C to the 630°C.<br />
For this study the light microscopy, scanning electron microscopy, energy dispersive<br />
microanalyses and image analyses were used.<br />
Keywords: Al-Al3Ni composites; Diffusion; EDS analyses<br />
.2
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P12 Magnetic Properties <strong>of</strong> Waste Vitrified in<br />
Microwave Furnace<br />
. 0<br />
Milota Kováčová, Michal Lovás, Marek Matik, Vladimír Šepelák<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, Košice, 043 53, Slovakia<br />
kovacova@saske.sk<br />
The paper deals with the magnetic properties <strong>of</strong> an iron-containig waste from<br />
the former nickel hydrometallurgy plant in Sereď (Slovakia). The waste, nickel<br />
leaching residue, was used as a model carrier <strong>of</strong> heavy metals (Co, Cu, Cd, Pb, Ni)<br />
from wastewater treatment, which was necessary to stabilize. Microwave vitrification<br />
was used for stabilization <strong>of</strong> heavy metals carriers.<br />
The magnetic properties were studied by magnetic susceptibility measurement.<br />
The dependence <strong>of</strong> magnetic susceptibility on Fe content hasn’t been proved.<br />
According to Mössbauer spectroscopy measurements, the magnetic properties depend<br />
on magnetic state, which is influenced by grain size <strong>of</strong> vitrified samples.<br />
Keywords: waste, microwave vitrification, magnetic susceptibility,<br />
Mössbauer spectroscopy
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P13 The use <strong>of</strong> Electrokinetic Potential Measurement<br />
for Examination <strong>of</strong> Kaolinite Decomposition<br />
Dana Kubátová, Petr Ptáček, Jaromír Havlica.<br />
Výzkumný ústav stavebních hmot, a.s.<br />
Hněvkovského 65, 617 00 Brno<br />
kubatovad@centrum.cz<br />
Kinetics and mechanism <strong>of</strong> metakaoline formation has been examined by electrokinetic<br />
potential measurement, TG-DTA and FT-IR analyses. The industrial kaoline<br />
used has been processed at the temperature range 105-800°C. The dehydroxylation<br />
<strong>of</strong> kaolinite (loss <strong>of</strong> OH groups) results in a surface change that leads to<br />
decreasing <strong>of</strong> system stability and increasing <strong>of</strong> electrokinetic potential, simultaneously.<br />
This increase occurs at the temperature range 400-550°C.<br />
Keywords: metakaoline, zeta potential<br />
. 1
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P14 Analysis and Interpretation <strong>of</strong> Height Alumina<br />
Refractories Corrosion by Alkali and Vanadium<br />
Oxides<br />
. 2<br />
Tomáš Opravil, Petr Ptáček, Jaromír Havlica,František Šoukal,<br />
Michal Vršecký<br />
Institute <strong>of</strong> Materials Chemistry, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno, CZ-612 00, Czech Republic,<br />
ptacek@fch.vutbr.cz<br />
The study provides an essential information about course <strong>of</strong> alkaline and vanadium<br />
corrosion process <strong>of</strong> shaped height alumina refractories. Samples taken from<br />
furnace lining <strong>of</strong> reactor on production <strong>of</strong> synthesis gas were analyzed by XRD,<br />
EDAX, FT-IR and REM for identification <strong>of</strong> corrosion products.<br />
Keywords: Refractories, Corrosion, Mullite
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P15 Measurment <strong>of</strong> Heat <strong>of</strong> Hydratation <strong>of</strong> Roman<br />
Cement<br />
Tomáš Opravil, Petr Ptáček, František Šoukal, Jaromír Havlica<br />
Institute <strong>of</strong> Material Chemistry, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno CZ – 612 00, Czech Republic,<br />
opravil@fch.vutbr.cz<br />
The Roman cement (natural cement) is no longer available on the market and<br />
there is currently an absence <strong>of</strong> any broader information on its characteristics. The<br />
work is from this account devoted to the study <strong>of</strong> the final burnt materials with any<br />
composition on preliminary materials. The main idea <strong>of</strong> this work is find optimal<br />
and easy method for measurement <strong>of</strong> heat <strong>of</strong> hydratation.<br />
Keywords: Roman cement, heat <strong>of</strong> hydratatoin, hydraulic lime,<br />
inorganic binders,<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P16 FT-IR Spectroscopic Study <strong>of</strong> Portland Cement<br />
Hydration<br />
.<br />
Tomáš Opravil, Petr Ptáček, Jaromír Havlica, František Šoukal<br />
Institute <strong>of</strong> Materials Chemistry, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno, CZ-612 00, Czech Republic,<br />
opravil@fch.vutbr.cz<br />
Portland cement hydration process was studied by mid-IR spectroscopy. Infrared<br />
spectroscopy is suitable method for main hydration product identification and<br />
investigation <strong>of</strong> the reaction course. Furthermore spectrum contains number <strong>of</strong> additional<br />
information about interactions and processes in C-S-H gel phase.<br />
Keywords: Portland cement, hydration, C-S-H
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P17 Synthesis <strong>of</strong> Calcium, Magnesium and Zinc<br />
Negative Thermal Expansion LAS Ceramics<br />
Petr Ptáček, Helena Krejčová, Jaromír Havlica, František Šoukal,<br />
Tomáš Opravil<br />
Institute <strong>of</strong> Materials Chemistry, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno, CZ-612 00, Czech Republic,<br />
ptacek@fch.vutbr.cz<br />
Lithium aluminosilicate ceramics (LAS) based on β-spodumene phase were<br />
synthesized via solid state sintering. The width <strong>of</strong> suitable temperature interval<br />
for sintering been improved by addition <strong>of</strong> calcium, magnesium and zinc. The stabilization<br />
<strong>of</strong> spodumene in solid solution leads to LAS ceramics thermal behavior<br />
changes. The DTA results show that the doped samples have been melted by congruent<br />
melting process.<br />
Keywords: LAS ceramics, Negative thermal expansion, Spodumene<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P18 Catalytic Actitity <strong>of</strong> Titania-Kaoline Composite<br />
.<br />
Petr Ptáček, Michal Fiala, Jaromír Havlica ,<br />
František Šoukal, Tomáš Opravil<br />
Institute <strong>of</strong> Materials Chemistry, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno, CZ-612 00, Czech Republic,<br />
ptacek@fch.vutbr.cz<br />
TiO 2 / Na-kaolinite composite were prepared via TiCl 4 hydrolysis in aqueous<br />
kaolin suspension. Effects <strong>of</strong> phyllosilicate support on the TiO 2 catalytic efficiency<br />
in temperature range from 100 to 400 °C was evaluated via ethanol vapor phase<br />
oxidation in flow reactor.<br />
Keywords: TiO 2 /Na-kaolinite composite, catalytic efficiency
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P19 Deposition <strong>of</strong> the TiO 2 on a Glass and Ceramics<br />
Surface<br />
Alena Rutteová, Jaromír Havlica, Petr Ptáček<br />
Institute <strong>of</strong> Materials Chemistry, Fakulty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, Brno, CZ-612 00, Czech Republic<br />
xcrutteova@fch.vutbr.cz<br />
TiO 2 has to be considered as one <strong>of</strong> the most important semiconductor photocatalyst.<br />
Imobilization <strong>of</strong> photocatalyst TiO 2 was made by precipitating from gas<br />
on to glass or ceramics support. The photocatalyst layer TiO 2 was evaluated by the<br />
optical microscopy. With using the methods <strong>of</strong> infrared spectroscopy, X-rays diffraction,<br />
differential thermal analysis and particulates size distribution samples <strong>of</strong> TiO 2<br />
dispersion in water and SiO 2 and TiO 2 hydrosol were analyzed.<br />
Keywords: Titanium dioxide, photocatalysis<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P20 Composition Changes <strong>of</strong> Clinker with P 2 O 5<br />
Content<br />
.<br />
Theodor Staněk, Petr Sulovský, Lenka Tomancová<br />
Výzkumný ústav stavebních hmot, a.s.,<br />
Hněvkovského 65, 617 00 Brno,<br />
stanek@vustah.cz<br />
The influence <strong>of</strong> P 2 O 5 on clinker phase composition was examined in laboratory<br />
conditions. P 2 O 5 affects the properties <strong>of</strong> clinker melt, it enters clinker minerals´<br />
structures, influences clinker phase composition and, hence, affects the properties <strong>of</strong><br />
cement. A high P 2 O 5 content appears in meat and bone meal that represents one <strong>of</strong><br />
important secondary fuels nowadays. P 2 O 5 in a form <strong>of</strong> calcium phosphate or meat<br />
and bone ash in the amount <strong>of</strong> 5 wt % was added to cement-making raw meal prepared<br />
<strong>of</strong> common cement raw material. Further, experiments with pure components<br />
were carried on and the influence <strong>of</strong> P 2 O 5 on phase composition at the absence <strong>of</strong> one<br />
<strong>of</strong> the main clinker oxides (Fe 2 O 3 or Al 2 O 3 ) was examined. The phase composition <strong>of</strong><br />
clinkers burned to equilibrium and non-equilibrium was quantified by optical point<br />
counting method. The entry <strong>of</strong> P 2 O 5 into clinker minerals´ structure was examined<br />
by electron microanalysis. At these laboratory experiments, the negative influence<br />
<strong>of</strong> P 2 O 5 was already observed at the content <strong>of</strong> 0.7 wt. % in clinker. The P 2 O 5 content<br />
<strong>of</strong> 4.5 wt. % totally blocked alite formation. A partial replacement <strong>of</strong> SiO 2 by P 2 O 5<br />
along with Al 2 O 3 in clinker silicates via so called berlinite substitution was revealed<br />
by electron microanalysis. Other experiments have shown that the Fe 2 O 3 absence<br />
eliminates the P 2 O 5 negative influence on the alite formation to some extent.<br />
Keywords: clinker, P 2 O 5
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P21 Spectroscopic Investigation <strong>of</strong> some<br />
Transitional Metals Complexes with Leucine as<br />
Ligand<br />
A. Stanila , A. Marcu, D. Rusu, M. Rusu<br />
Agricultural Sciences and Veterinary Medicine Univ.<br />
400018 Cluj-Napoca, Romania<br />
andreea s@yahoo.com<br />
The purpose <strong>of</strong> the study was to obtain neutral complexes <strong>of</strong> ML 2 ⋅nH 2 O type at<br />
pH = 8–10, in the presence <strong>of</strong> a strong basis (NaOH) .<br />
The [Cu(L) 2 ]⋅H 2 O (1), [Co(L) 2 ]⋅2H 2 O (2) and [Zn(L) 2 ]⋅H 2 O (3) complexes with<br />
leucine (L) as ligand, were synthesized and characterized by means <strong>of</strong> atomic absorption,<br />
elemental and thermal analyses, IR, UV-VIS and ESR spectroscopic investigations.<br />
The elemental analysis and atomic absorption spectroscopy measurements confirm<br />
the ration 1:2 metal ion: leucine composition for the synthesized complexes.<br />
The FT-IR data show that leucine is acting as a bidentate ligand with coordination<br />
involving the carboxylic oxygen and the nitrogen atom <strong>of</strong> the amino group.<br />
Spectral UV-VIS and EPR spectra at room temperature are typical for monomeric<br />
species, the pseudotetrahedral symmetry around the copper and zinc ions<br />
and the octahedral simmetry for the cobalt ion.<br />
Keywords: spectroscopy, leucine<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P22 The Study <strong>of</strong> Compressive and Flexural Strength<br />
<strong>of</strong> High Performance Concrete (HPC) as the<br />
Function <strong>of</strong> its Composition<br />
. 0<br />
Pavel Šiler, Josef Krátký, Ondřej Veleba, Pavel Jedlička<br />
FCH VUT Brno<br />
Purkyňova 118, 61200, Brno, Czech republic<br />
siler@fch.vutbr.cz<br />
The work is aimed at the study <strong>of</strong> the compressive and flexural strength <strong>of</strong><br />
high performance concrete (HPC) as the function <strong>of</strong> its composition. Constituents<br />
used for HPC preparation were portland cement, white cement, silica fume, finely<br />
ground granulated blast furnace slag, finely ground silica (SUK), bauxite and<br />
polycarboxylate superplasticizer. The influence <strong>of</strong> the HPC composition on hydration<br />
process was observed by means <strong>of</strong> isoperbolic calorimetry. The compressive<br />
strength <strong>of</strong> HPC prepared was in the range <strong>of</strong> 150–220 MPa. Flexural strength was<br />
in the range <strong>of</strong> 10 – 20 MPa. All specimens were prepared using standard mixer and<br />
wet cured for 28 days before the mechanical parameters were measured.<br />
Keywords: high performance concrete, isoperbolic calorimetery,<br />
compresive strength, flexural strength
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P23 Temperature and Moisture Effects on<br />
Macrodefct-Free Composite Structure and<br />
Properties<br />
František Šoukal, Jiří Másilko, Jaromír Havlica, Petr Ptáček, Tomáš Opravil<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova118, 61200 Brno<br />
soukal@fch.vutbr.cz<br />
Inorganic cement combined with water-soluble polymer after appropriate<br />
high-shear processing can result into the ultra-high-strength material called macrodefect-free<br />
composite. Macrodefect-free composites are sensitive to moisture due<br />
to water-soluble polymer content. A temperature and moisture effects during setting<br />
and aging <strong>of</strong> composite on its chemical and physical structure and its relevant<br />
properties were studied.<br />
Keywords: macrodefect-free, temperature, moisture<br />
. 1
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P24 Latex Modified Cement Composites: Effect <strong>of</strong><br />
Polymer Type<br />
. 2<br />
František Šoukal, Václav Vinter, Jaromír Havlica, Petr Ptáček,<br />
Tomáš Opravil<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova118, 61200 Brno<br />
soukal@fch.vutbr.cz<br />
The latex modified cements <strong>of</strong>fers some improved or unique properties in the<br />
field <strong>of</strong> cemetitious materials. The type <strong>of</strong> polymer used within the latex significantly<br />
influences hydration mechanism and final properties. The paper discusses this<br />
effect in the terms <strong>of</strong> structure development and mechanical properties <strong>of</strong> resulting<br />
composite.<br />
Keywords: cement, latex, modification, polymer type
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P25 Influence <strong>of</strong> Conditions on Hydraulic Calcium<br />
Aluminate Phases Hydration Mechanisms<br />
František Šoukal, Jan Koplík, Jaromír Havlica, Vítězslav Frank, Petr Ptáček<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova118, 61200 Brno<br />
soukal@fch.vutbr.cz<br />
Nowadays literature does not clearly describes the hydration mechanisms <strong>of</strong><br />
hydraulic calcium aluminate phases such as C 3 A, CA, CA 2 and C 12 A 7 in the terms<br />
<strong>of</strong> resulting hydrate and influence <strong>of</strong> hydration conditions. This paper deals with<br />
the effect <strong>of</strong> pH value and temperature on hydration mechanism <strong>of</strong> these hydraulic<br />
phases.<br />
Keywords: calcium aluminate, hydration mechanism<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P26 The Study <strong>of</strong> Building Materials<br />
Biodeterioration by Inovatives Methods<br />
.<br />
Eva Terpáková<br />
Technical University Košice, Civil Engineering fakulty,<br />
Institute <strong>of</strong> Building and Environmental Engineering,<br />
Vysokoškolská 4, 040 22 Košice<br />
eva.terpakova@tuke.sk<br />
Biodeterioration <strong>of</strong> building materials - stone, concrete, mortar, etc., can be<br />
caused by such microorganisms as bacteria, fungi, lichens, algae, and plants. Multidiscipline<br />
methods are available for the study <strong>of</strong> biodeterioration each other materials.<br />
Almost <strong>of</strong> them is bearing to biological part <strong>of</strong> problem e.g. identification <strong>of</strong><br />
biodeteriorates, evaluating <strong>of</strong> birth bi<strong>of</strong>ilm or metabolites studies.<br />
This paper reports on the development <strong>of</strong> accelerated tests for evaluating microbial<br />
influenced degradation (MID) <strong>of</strong> concrete samples as model matrix one <strong>of</strong><br />
pipe system material. Aggressive MID microorganisms can form a bi<strong>of</strong>ilm on the<br />
surface <strong>of</strong> model samples so that when nutrients are provided the microbes remain<br />
active. The changes <strong>of</strong> physico – chemical characteristics <strong>of</strong> model samples due to<br />
MID were studied by several analytical methods. Elemental mass loss data from<br />
exposed sample forms indicate the continued development and growth <strong>of</strong> microbes<br />
on the surface <strong>of</strong> samples. The differences in alkaline reaction confirmed the neutralisation<br />
process <strong>of</strong> cement stone due to MID. Calorimetric studies <strong>of</strong> MID processes<br />
are evaluated besides.<br />
Keywords: biodeterioration, MID, concrete, diagnostic methods
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P27 Milling <strong>of</strong> Olivine (Mg, Fe) 2 SiO 4 in High-Energy<br />
Mills by Wet and Dry Way<br />
Erika Turianicová, Peter Baláž<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice<br />
turianicova@saske.sk<br />
The effect <strong>of</strong> grinding on the olivine (Mg, Fe) 2 SiO 4 is studied with great interest<br />
because it is a mineral possible to use as a suitable feedstock to carbon dioxide<br />
sequestration.<br />
This idea was originally proposed by Seifritz and first studied in more details<br />
by Lackner. The basic concept behind CO 2 mineral sequestration is to mimic natural<br />
weathering process in which Ca- or Mg- containing minerals are converted into Ca-<br />
or Mg- carbonates as exemplified by the following equation:<br />
(Ca, Mg)SiO 3 + CO 2 → (Ca, Mg)CO 3 +SiO 2 (1)<br />
The process <strong>of</strong> silicate minerals conversion according (1) is very slow (<strong>of</strong> thousands<br />
to millions <strong>of</strong> years). This is attribute to ambient conditions. Increasing the<br />
temperature and pressure <strong>of</strong> CO 2 is favoured over mineral carbonates at high temperatures.<br />
Mechanical activation by high-energy milling can results in major improvement<br />
<strong>of</strong> the reaction rate.<br />
The paper deal with high-energy milling <strong>of</strong> olivine sample, originated from<br />
the production plant at Ǻheim (Norway), in three mills. Physico-chemical changes<br />
induced by mechanical activation in a planetary mill, attritor and nutating mill are<br />
studied. By means <strong>of</strong> the grinding process it is possible to reduce particle size and to<br />
increase external surface area. The specific surface area was determined by the low<br />
temperature nitrogen adsorption method<br />
Keywords: olivíne, grinding<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P28 Numerical Modelling and Simulation for<br />
Interaction between Cu2+ 2- and S O 2 3<br />
.<br />
Mihaela Ligia Ungureşan, Mihail Abrudean, Paula Raica, Eva Dulf,<br />
Tiberiu Coloşi<br />
Technical University <strong>of</strong> Cluj-Napoca, Chemical Department,<br />
103-105 Muncii Bvd., 400641, Cluj-Napoca, Romania<br />
Mihaela.Unguresan@chem.utcluj.ro<br />
The experimental reaction order is consistent with the mechanism involving in<br />
the first step complex’s fast formation and in the second, the reaction between two<br />
complex molecules.<br />
For family <strong>of</strong> curves y = y(t, p), experimentally rise up, y is the light intensity<br />
and it is considered as dependent on time t [ms] and concentration p[mol/l]. We are<br />
following the significant stages <strong>of</strong> identification – numerical modeling and simulation,<br />
in a usual systemic variant.<br />
The analogical model results from the reaction mechanism Cu2+ 2– with S O 2 3<br />
and through numerical simulation the following kinetics parameters can be obtained:<br />
the rate constants k 1 = 9.7; k -1 = 0.7 şi k 2 = 8222.5; molar absorption coefficient<br />
ε = 1489.7 M -1 cm -1 and the reaction order in report to reaction intermediate, at his<br />
decomposition, n = 2. The results run on the computer are being compared and<br />
interpreted in report to the experimental measurements.<br />
Keywords: rapid redox reaction, exponential functions, state variables,<br />
Taylor series, numerical integration.
3-P29 Bioactivity and Cytotoxicity<br />
<strong>of</strong> Fluorhydroxyapatite Ceramic<br />
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
Martin Vitkovič, Maha Salih Mahammed Noaman and Martin Palou<br />
Slovak University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemical and Food Technology<br />
Radlinského 9, 812 37 Bratislava, Slovak Republic<br />
martin.vitkovic@stuba.sk<br />
There is an increasing need for medical implants, due to an increasing aged<br />
population. Bone defects resulting from trauma, disease or developmental anomalies<br />
can substantially be improved by reconstructive surgery.<br />
Bone is essentially constituted <strong>of</strong> nanoscale inorganic materials and proteins.<br />
The inorganic materials are minerals which are structurally apatite-like, such as<br />
hydroxyapatite [HA, Ca 5 (PO 4 ) 3 OH], fluorapatite [FA, Ca 5 (PO 4 ) 3 F] and carbonateapatite.<br />
Therefore, composite fluorhydroxyapatite (FHA) materials have been developed<br />
by different synthesis routes and techniques in order to improve both bioactivity<br />
and mechanical properties <strong>of</strong> various orthopaedic prosthesis and dental<br />
implants. Besides bioactivity and mechanical properties, the non-cytotoxicity is one<br />
<strong>of</strong> the most important requirements for applications <strong>of</strong> these materials.<br />
The present work deals with the bioactivity and the cytotoxicity investigation<br />
<strong>of</strong> ceramic materials on the base <strong>of</strong> apatites with general formula Ca 5 (PO 4 ) 3 (OH) 1-x F x<br />
(x = 0, 0.5 and 1).<br />
Keywords: fluorhydroxyapatite, bioactivity, cytotoxicity<br />
.
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P30 Microwave-Hydrothermal Synthesis <strong>of</strong><br />
Hydroxyapatite From CaSO 4 · 1/2H 2 O<br />
.<br />
P. Zamazalová , Ch. Damia, E. Champion, O. Gedeon<br />
Department <strong>of</strong> Glass and Ceramics, ICT Prague<br />
Technická 5, 166 28 Prague 6, Czech Republic<br />
Petra.Zamazalova@vscht.cz<br />
Dental caries is a world wide spread illness affecting inhabitants on every continent.<br />
Caries can be formed in micro-defects occurring on the surface <strong>of</strong> dental<br />
enamel as a result <strong>of</strong> demineralization process. In order to prevent caries formation<br />
in these defects a suitable material can be used to fill in present defects and cure<br />
them. As generally known, enamel can be chemically defined as non-stoicheiometric<br />
apatite (Ca 10-x (HPO 4 ) x (PO 4 ) 6-x (OH) 2-x · x H 2 O, 0
Section 3 – Chemistry <strong>of</strong> Inorganic Materials<br />
Posters<br />
3-P31 Conversion Coatings on Magnesium Alloys<br />
Martin Zmrzlý<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong>Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
zmrzly@fch.vutbr.cz<br />
Magnesium alloys are very perspective materials because <strong>of</strong> their low density<br />
and good mechanical properties. Main disadvantage <strong>of</strong> these alloys is their poor<br />
corrosion resistance. Moreover, one <strong>of</strong> the effective ways <strong>of</strong> their corrosion protection,<br />
the chromate coating, is nowadays not applicable since it is harmful to health<br />
and environment. So that new ways <strong>of</strong> corrosion protection have to be developed<br />
and adjusted for technological use.<br />
Keywords: Magnesium alloys, conversion coatings<br />
.
. 0
Section 4:<br />
Chemistry <strong>of</strong> Organic<br />
Materials<br />
.1
Lectures<br />
.
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Lectures<br />
4-L01 Effect <strong>of</strong> Water Dissolution and Freeze-<br />
Drying on the Solid State NMR Sensitivity <strong>of</strong> a<br />
Heterogeneous Organic Mixture<br />
Pellegrino Conte, Anne E. Berns,<br />
Peter Burauel, Hans-Dieter Narres, Harry Veerecken<br />
Dipartimento di Ingegneria e Tecnologie Agro-Forestali,<br />
Università degli Studi di Palermo (Italy)<br />
v.le delle Scienze 13, ed. 4, 90128, Palermo – Italy<br />
pellegrino.conte@unipa.it<br />
The effect <strong>of</strong> the widely used freeze-drying storage technique on the sensitivity<br />
<strong>of</strong> CPMAS 13C NMR spectra <strong>of</strong> a heterogeneous mixture was investigated. The<br />
main factor controlling the CPMAS 13C-NMR sensitivity is the strength <strong>of</strong> the C-H<br />
dipolar interactions, which in turn is weakened by both rapid molecular motions<br />
and the absence <strong>of</strong> protons in the neighbourhood <strong>of</strong> carbon atoms. Changes in sensitivity<br />
<strong>of</strong> CPMAS 13C NMR spectroscopy were observed when large amounts <strong>of</strong><br />
proton nuclei were supplied to natural organic matter (NOM) by water adsorption<br />
and when mutual spatial orientation <strong>of</strong> molecules in complex mixtures were modified<br />
during sample preparation. The procedures for sample preparation may affect<br />
CPMAS 13C NMR sensitivity, thereby providing undesirable results (i.e. either signal<br />
loss or quantitative overevaluation) when detailed information on complex mixtures<br />
are needed at a molecular level. Hence, a heterogeneous mixture was prepared<br />
by mixing equal amounts <strong>of</strong> four different known compounds. Part <strong>of</strong> the mixture<br />
was kept unchanged, whereas a second part was first suspended in water and then<br />
freeze-dried. The mixtures are then analysed by CPMAS-NMR.<br />
Keywords: Natural organic mixtures, CPMAS 13C-NMR<br />
.
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Lectures<br />
4-L02 Aminoacid Pr<strong>of</strong>iles Monitoring for Diagnosis<br />
.<br />
Monica Culea, Andreea Iordache, Cornelia Mesaros<br />
Babes-Bolyai University,<br />
Str. Kogalniceanu, nr.1, 3400 Cluj-Napoca,<br />
mculea@phys.ubbcluj.ro<br />
A rapid GC/MS method for diagnosis <strong>of</strong> some neonatal diseases is described.<br />
Small volumes <strong>of</strong> 20 μl <strong>of</strong> plasma or blood spots were used for neonatal blood<br />
screening for diagnosis <strong>of</strong> phenylketonuria and other metabolic diseases. The blood<br />
samples were derivatized as trifluoroacetylbutyl esters and analyzed by gas chromatography<br />
coupled with mass spectrometry in the SIM mode. Regression curves<br />
for some standard amino acids are used for quantitative determination <strong>of</strong> valine,<br />
leucine, proline, phenylalanine and tyrosine. Samples were separated on a Rtx-5MS<br />
capillary column, 30 m x 0.25 mm, 0.25μm film thickness, using a temperature program<br />
from 50 °C(1min), then 20°C/min to 310 °C in the SIM mode. The following<br />
conditions were followed: transfer line temperature: 250oC, injector temperature:<br />
200 °C; ion source temperature 250 °C; Splitter: 10:1. Quantitative determination<br />
<strong>of</strong> the amino acids <strong>of</strong> interest was made in the SIM mode by selecting the highest<br />
ions <strong>of</strong> the mass spectrum and the m/z 183 for the internal standard, 15N-labelled<br />
isoleucine.<br />
Keywords: blood, diagnosis, amino acid, SIM-GC-MS
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Lectures<br />
4-L03 Microwave-Assisted Extraction <strong>of</strong> Organic<br />
Compounds from the Brown Coal<br />
Silvia Čuvanová, Michal Lovás<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences,<br />
Watsonova 45, SK-043 53 Košice, Slovakia,<br />
cuvanova@saske.sk<br />
This article presents a new approach to evaluation <strong>of</strong> coal with implementation<br />
<strong>of</strong> microwave extraction <strong>of</strong> powders. It is know from literature that organic structure<br />
<strong>of</strong> coal is the base for preparation <strong>of</strong> organic materials. It has been tested the<br />
efficiency <strong>of</strong> different solvents for the extraction <strong>of</strong> polycyclic aromatic hydrocarbons<br />
in various organic solvents (dichloromethane, toluene, methanol) at the various<br />
conditions. The temperature <strong>of</strong> boiling at conditions <strong>of</strong> microwave heating in<br />
open loop system increased in comparison with conventional heating depending on<br />
type <strong>of</strong> solvent. MAE (microwave-assisted extraction) was also realised in pressure<br />
vessels. MAE and Soxhlet extraction <strong>of</strong> mechanically activated samples were compared.<br />
The extracts were tested by GC-MS analysis.<br />
The distribution <strong>of</strong> temperature in the extraction solvent was operated by modelling<br />
program Comsol, version 3.3.<br />
Keywords: brown coal, microwave-assisted extraction (MAE),<br />
organic compounds<br />
.
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Lectures<br />
4-L04 Reactivity <strong>of</strong> N-NO 2 Bonds in Nitro Amides<br />
.<br />
Zdeněk Friedl, Svatopluk Zeman<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, CZ-61200 Brno, Czech Republic<br />
friedl@fch.vutbr.cz<br />
The homolytic dissociation <strong>of</strong> C-NO 2 , N-NO 2 or O-NO 2 represents the primary<br />
fission process <strong>of</strong> energetic materials under thermal, impact, shock and electric<br />
spark initiation stimuli. In the case <strong>of</strong> nitramines and nitro amides the N-NO 2 bond<br />
fission is mostly characterized by homolytic bond dissociation energies BDE(N-<br />
NO 2 ). The theoretical calculations <strong>of</strong> BDE energies are substantially influenced from<br />
inadequate treatment <strong>of</strong> electron correlation. Recently the alternative method was<br />
suggested to overcome this substantial drawback – the bond separation approach<br />
described by an isodesmic reaction. This type <strong>of</strong> virtual symmetrical chemical equilibria,<br />
characterized as bond disproportionation reactions, inherently cancel the<br />
electron correlation effects accompanying homolytic bond dissociation.<br />
The bond disproportionation energies DISP(N-NO 2 ) and bond dissociation<br />
energies BDE(N-NO 2 ) were evaluated for 10 nitro amides at ab initio DFT B3LYP/6-<br />
311+G(d,p) level. The DISP and BDE energies were correlated both with further<br />
theoretical molecular descriptors (total electronic charges <strong>of</strong> NO 2 groups) and main<br />
detonation parameters (detonation velocities D and heats <strong>of</strong> detonation Q real ) <strong>of</strong> nitro<br />
amides studied.<br />
Keywords: nitro amides, bond dissociation energies, DFT calculations
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Lectures<br />
4-L05 XRD and FT-IR Study <strong>of</strong> Soot Obtained from<br />
Pyrolysis <strong>of</strong> Used Tires<br />
Slavomír Hredzák, Silvia Ivanová<br />
Institute <strong>of</strong> Geotechnics <strong>of</strong> the Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Košice, Slovakia<br />
hredzak@saske.sk<br />
The paper deals with XRD and FT-IR study <strong>of</strong> soot specimens coming from<br />
a pilot pyrolytic plant for processing <strong>of</strong> crushed used tires in the Slovak Leaching<br />
Works – Chemistry, Inc. Hnúšťa. The specimens were prepared using a dry low<br />
intensity magnetic separation to remove the residues <strong>of</strong> thin steel wires and other<br />
Fe-bearing phases.<br />
The products <strong>of</strong> magnetic separation were subjected to XRD study. Two forms<br />
<strong>of</strong> graphite and lonsdaleite were found as main carbon phases. Moreover, an occurrence<br />
<strong>of</strong> amorphous phase, calcite, rankinite and magnetite was detected.<br />
Non-magnetic product was analysed using FT-IR. The FT-IR study <strong>of</strong> soot samples<br />
proved carbon bonds in alkanes, alkenes, alkines also in aromatic compounds.<br />
Slow bands <strong>of</strong> graphite, amorphous carbon and calcite were found. Carbon bonds<br />
with other components such as C–S, C–SO 2 –C, Si–O–Si, Zn–O was also identified,<br />
which corresponds with chemical analyses and XRD pattern.<br />
Finally, obtained results showed, that for removing <strong>of</strong> Fe-bearing components<br />
a low intensity magnetic separation is sufficient. Deferrized pyrolytic soot contains<br />
about 80 % C and such soot can be generally applied in production <strong>of</strong> lower quality<br />
rubber and/or as a filler to asphalt mixtures for pavement.<br />
Keywords: soot, magnetic separation, XRD, FT-IR<br />
.
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Lectures<br />
4-L06 Determination <strong>of</strong> Yield and Chemical<br />
Composition <strong>of</strong> Soda-Anthraquinone<br />
Semichemical Pulp from Hardwood Mixture<br />
.10<br />
Michal Letko, Erika Nováková, Milan Vrška<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37, Bratislava, Slovakia<br />
michal.letko@stuba.sk<br />
A lot <strong>of</strong> qualitative parameters <strong>of</strong> semichemical pulp are derived from yield.<br />
However, determination <strong>of</strong> yield is very difficult in this case. It is interesting from<br />
economical point <strong>of</strong> view as well. Yield is very <strong>of</strong>ten determined on the basis <strong>of</strong> functionalities<br />
and reaction conditions <strong>of</strong> process.<br />
This work is focused on determination <strong>of</strong> yield <strong>of</strong> semichemical pulp prepared<br />
by sulfur-free delignification process SAQ (NaOH/Na CO + anthraquinone) with<br />
2 3<br />
subsequent defibration <strong>of</strong> chips. Delignification <strong>of</strong> hardwood mixture with various<br />
content <strong>of</strong> hornbeam, birch and poplar in conditions <strong>of</strong> SAQP (chemical charge 7,0-<br />
7.5 %, T = 170°C, cooking time 60 min.) was performed in accordance with schedule<br />
<strong>of</strong> statistical planned experimentation Using direct determination <strong>of</strong> yield, lignin,<br />
2<br />
holocellulose and α-cellulose, the equations in the form y=b + b x + b x + b x + b x 0 1 1 2 2 3 3 11 1<br />
+ b 22 x 2<br />
2 + b33 x 3<br />
2 were obtained, where xi is content <strong>of</strong> wood species, their ratio and che-<br />
mical charge. Through mathematical processing <strong>of</strong> this formula we can determinate<br />
yield <strong>of</strong> SAQ semichemical pulp.<br />
Keywords: SAQP, yield, chemical composition
Posters<br />
.11
.12
4-P01 Efficient Solvent-Free Synthesis <strong>of</strong><br />
Bis(arylmetylidene)piperidinones<br />
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
M. Saeed Abaee, Mohammad M. Mojtahedi, Roholah Sharifi,<br />
A. Wahid Mesbah<br />
Chemistry and Chemical Engineering Research Center <strong>of</strong> Iran,<br />
P.O.Box 14335-186 Tehran Iran<br />
abaee@ccerci.ac.ir<br />
Crossed aldol condensation <strong>of</strong> homocyclic ketones with aldehydes is a useful<br />
method for the preparation <strong>of</strong> bis(arylmethylidene)cycloalkanones which are very<br />
important precursors in synthetic organic chemistry. In contrast, fewer investigations<br />
on similar heterocyclic counterparts have taken place. Despite the importance<br />
<strong>of</strong> these compounds from biological and bioorganic points <strong>of</strong> view, they have been<br />
prepared via the condensation <strong>of</strong> heterocyclic ketones with aromatic aldehydes<br />
under relatively harsh conditions and after long reaction time periods.<br />
In the present article, a 1:2 mixture <strong>of</strong> LiBr and diethylamine (Et 2 NH) is employed<br />
to induce one-pot double condensation <strong>of</strong> piperidinone with aromatic aldehydes<br />
under solvent-free conditions. Excellent yields <strong>of</strong> 3,5-bis(arylmethylidene)<br />
piperidinones are achieved in a facile one-pot general procedure. Structure <strong>of</strong> the<br />
products is determined by spectroscopic methods, elemental analysis, and X-ray<br />
crystallographic experiment.<br />
O<br />
N<br />
H<br />
ArCHO, r.t.<br />
LiBr, HNEt2 Keywords: bisarylmethylidene, piperidinone<br />
Ar<br />
O<br />
N<br />
H<br />
Ar<br />
.1
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P02 Novel Diketopyrrolopyrroles for Molecular<br />
Optical and Electrical Devices<br />
.1<br />
Pavel Bednář, Oldřich Zmeškal, Martin Weiter, Martin Vala<br />
Brno University <strong>of</strong> Technology, Fakulty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno, Czech Republic<br />
bednar-p@fch.vutbr.cz<br />
Derivates <strong>of</strong> diketopyrrolopyrrole (DPPs) are relatively new materials exploited<br />
in the chemical industry as a high-performance pigments or dyes. They exhibit<br />
exceptional light, heat, chemical and weather fastness. Furthermore, some <strong>of</strong> their<br />
physical properties such as good film forming properties, absorption in visible area<br />
<strong>of</strong> light and high values <strong>of</strong> photoluminescence quantum yields are exceptional.<br />
The main goal <strong>of</strong> our work is a characterization <strong>of</strong> properties <strong>of</strong> the DPPs with<br />
respect to their potential application in the optoelectronical or electro-optical devices<br />
such as solar cells, photo-detectors, electroluminescent diodes and thin film<br />
transistors.<br />
The absorbance and photoluminescence measurements and current-voltage<br />
and electroluminescence measurements together with impedance spectroscopy<br />
were used to characterize these materials.<br />
The obtained results have shown that the DPPs are promising candidates for<br />
active electroluminescent materials or in solar cells.<br />
Keywords: diketopyrrolopyrrole, electroluminescence, photo-conductivity
4-P03 Diagnosis <strong>of</strong> Cirrhosis by GC/MS<br />
Monica Culea, Cornelia Mesaros, Eugen Culea<br />
“Babes-Bolyai” University,<br />
Str. M. Kogalniceanu, Nr. 1, Cluj-Napoca, 400084, Romania<br />
mculea@phys.ubbcluj.ro<br />
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
Gas chromatographic-mass spectrometric (GC/MS) is one <strong>of</strong> the best method<br />
for measuring drugs. Applications are very important for purity control, pharmacokinetic<br />
studies, metabolic studies, clinical applications but also for treatment and<br />
diagnosis. Due to the high sensitivity needed, the selected ion monitoring (SIM)<br />
mode was used in caffeine test measurements. Caffeine and 15N-theophylline, the<br />
internal standard, were measured by using the isotopic dilution (ID) technique in<br />
5 minutes, on a Rtx-5 capillary column 30 m × 0.25 mm diameter, 0.25 μm filmthickness,<br />
in the temperature program: 200–250 °C, at 10 °C/min. A single dose <strong>of</strong><br />
4 mg/kg p.o. <strong>of</strong> caffeine was followed by blood concentrations measurements at two<br />
points, 1 h and 9 h. Caffeine clearance, measured in patients with cirrhosis and chronic<br />
hepatitis, was reduced and half live time was increased in children with liver<br />
disease as compared with control.<br />
Keywords: cirrhosis, caffeine test, children, GC-MS<br />
.1
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P04 Leukotriene Quantitation by GC-MS<br />
.1<br />
Monica Culea, Eugen Culea, Paraschiva Chereches-Panta, Adela Pintea<br />
Babes-Bolyai University,<br />
Str. Kogalniceanu, nr.1, 3400 Cluj-Napoca<br />
mculea@phys.ubbcluj.ro<br />
Quantitation <strong>of</strong> eicosanoid levels in biological systems is important for understanding<br />
<strong>of</strong> their role in cell function or pathological and for diagnosis. Leukotrienes<br />
quantitation is limited by sensitivity <strong>of</strong> the method. Gas chromatography - mass<br />
spectrometry provides a sensitive and specific method when proper derivatization<br />
method is used. Gas chromatography was performed on a 5% phenyl methylpolysiloxane<br />
column (30 m × 0.25 mm I.D., 0.25 μm film thickness) operated in a<br />
suitable temperature program. Helium carrier gas was <strong>of</strong> 1ml/min. Ionization was<br />
performed by electron impact (EI) and detection in SIM mode. The method provided<br />
good response linearity and precision (< 30% C.V.) in the range 1–1000pg/ml,<br />
necessary to analyse leukotrene B4 in exhaled air. Arachidonic acid was used as<br />
internal standard.
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P05 Characterization <strong>of</strong> Oligosaccharides Using<br />
ESI-MS in Presence <strong>of</strong> Anions<br />
Richard Čmelík, Janette Bobáľová<br />
Institute <strong>of</strong> Analytical Chemistry, v.v.i., Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic,<br />
Department <strong>of</strong> Proteomics and Glycomics,<br />
Veveří 97, CZ-60200 Brno, Czech Republic<br />
cmelik@iach.cz<br />
Knowledge <strong>of</strong> oligosaccharide sequence, inter-residual linkages, and branching<br />
are essential for understanding their biological functions and technological<br />
properties.<br />
We recently reported the study on comparison <strong>of</strong> the malto- and isomaltooligosaccharide<br />
mixtures using negative ion electrospray ionization (ESI − ) mass spectrometry<br />
(MS). Having the abundance <strong>of</strong> unstable [M–H] – ions that gives in-source<br />
fragment ions in ESI − mass spectra, oligosaccharides were stabilized by adduct formation<br />
[M+X] – with several anions (X – ). The analogous molecular mass distributions<br />
<strong>of</strong> presented glucose oligomers were obtained, whereas the chloride and nitrate adducts<br />
appeared in mass spectra in higher abundances relative to [M–H] – .<br />
Tandem MS experiments enable to distinguish α-(1→4) and α-(1→6) linkages<br />
on the base <strong>of</strong> specific diagnostic product ions. A fragmentation <strong>of</strong> [M+Cl] – and<br />
[M+NO 3 ] – ion adducts was found to be suitable for structural determination <strong>of</strong> (iso)<br />
maltooligosaccharides because more prominent cross-ring fragmentation was observed.<br />
Acknowledgement: This work was supported by the Project No. 2B06037 from the<br />
Ministry <strong>of</strong> Education, Youth and Sports, Czech Republic and Institutional Research<br />
Plan AV0Z40310501.<br />
Keywords: oligosaccharides, electrospray mass spectrometry, anionic adducts<br />
.1
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P06 A new Approach to Protein Enzymatic Digestion<br />
for Fast Protein Identification by Matrix-<br />
Assisted Laser Desorption/Ionization Time-<strong>of</strong>-<br />
Flight Mass Spectrometry<br />
.1<br />
Filip Dyčka, Markéta Laštovičková, and Janette Bobáľová<br />
Institute <strong>of</strong> Analytical Chemistry v.v.i., Academy <strong>of</strong> Sciences <strong>of</strong> the Czech Republic,<br />
602 00 Brno, Veveří 97, Czech Republic;<br />
dycka@iach.cz<br />
The combination <strong>of</strong> protein separation by polyacrylamide gel electrophoresis<br />
with mass spectrometric analysis <strong>of</strong> proteins digested enzymatically in-gel is a very<br />
powerful tool for protein identification in complex biological systems. Recently several<br />
approaches have been developed for fast protein digestion. One approach is the<br />
use <strong>of</strong> modified trypsin for in-gel digestion. Other promising approaches include<br />
microwave-assisted or ultrasonic assisted protein enzymatic digestion. The traditional<br />
sample preparation for protein identification through peptide formation is<br />
time-consuming procedure therefore we have studied and compared the variable<br />
performances <strong>of</strong> the fast enzymatic digestion <strong>of</strong> proteins using the different techniques.<br />
Most important, the new approach <strong>of</strong> protein digestion takes minutes, in<br />
contrast to several hours required by conventional methods.<br />
Acknowledgement: This work was supported by the grant from GAAV<br />
IAA600040701 and Research Plan <strong>of</strong> Institute <strong>of</strong> Analytical Chemistry, Academy <strong>of</strong><br />
Sciences <strong>of</strong> the Czech Republic AV0Z40310501.<br />
Keywords: 1-D gel electrophoresis, proteins, in-gel digestion
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P07 The 13 C and 119 Sn NMR Spectra <strong>of</strong> Some<br />
Trioraganotin-(IV)-N,N-Diethyldithiocarbamates<br />
Used as Wood Preservatives<br />
Juraj Kizlink, Ladislav Reinprecht<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology,<br />
Purkyňova 118., CZ-612 00 Brno,<br />
kizlink@fch.vutbr.cz<br />
The trialkyl-, triaryl- and triaralkyl-tin-(IV)-N,N-diethyldithiocarbamates were<br />
synthetized and tested as wood preservatives against mould and rot - Coniophora<br />
puteana, Coriolus versicolor and Serpula lacrymans. The best results were obtained<br />
with the trialkyltin-(IV)-compounds in the order <strong>of</strong> R in the R 2 N- group: butyl-,<br />
propyl-, ethyl- and methyl- groups, comparable with commercial abroad widely<br />
used tributyltin-(IV)-naphtenate (TBTN). The 13 C and 119 Sn NMR spectra <strong>of</strong> these<br />
compounds were also measured and are here presented in the enclosed table.<br />
Keywords: triorgano-tin-N,N-diethyldithiocarbamates, wood preservatives,<br />
organotin biocides,<br />
.1
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P08 Preparation <strong>of</strong> Dimethyl Carbonate from<br />
Methanol and Carbon Dioxide – The Removal <strong>of</strong><br />
Reaction Water by Olefins<br />
.20<br />
Juraj Kizlink<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118., CZ-612 00 Brno<br />
e-mail: kizlink@fch.vutbr.cz<br />
For the utilization <strong>of</strong> carbon dioxide as significant waste, the dimethyl carbonate<br />
was prepared. Owing to the reaction water, this reaction is ceased in equilibrium.<br />
The removal <strong>of</strong> reaction water from the reaction mixture is possible either by chemical<br />
traps, or by means <strong>of</strong> some olefins, when the appropriate alcohols are produced<br />
during the reaction. The main product is useful as additive for lithium batteries,<br />
motor fuels and coolants for car air conditioners. It is also good methylation agent<br />
with very low mammalian toxicity.<br />
Keywords: dimethyl carbonate, dialkyl carbonates
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P09 Amadori Rearrangement for Synthesis <strong>of</strong> Chiral<br />
Fragments<br />
Jana Marková, Milan Potáček<br />
Masaryk University, Faculty <strong>of</strong> Science, Department <strong>of</strong> Chemistry<br />
Kotlářská 2, 611 37 Brno<br />
21510@mail.muni.cz<br />
Amadori rearrangement is reaction between sugars and amines. The rearrangement<br />
is based on the conversion <strong>of</strong> N-substituted glycosylamines to the Nsubstituted<br />
1-amino-1-deoxy-2-ketoses. Amadori discovered this reaction in years<br />
1926-31. The final structure <strong>of</strong> the rearranged product disclosed Weygand and Kuhn<br />
in 1937. Recently was found that Amadori rearrangement takes place in living cells<br />
and organisms, where sugars and amino acids coexist. There, Amadori rearrangement<br />
causes the functional modification <strong>of</strong> proteins, which are characteristic for<br />
diseases diabetes mellitus and arteriosclerosis. Amadori rearrangement is also known<br />
as initial phase <strong>of</strong> Maillard reaction and plays an important role in the synthesis <strong>of</strong><br />
osazone, quinoxaline, folic acid and rib<strong>of</strong>lavine.<br />
We have investigated conditions for Amadori rearrangement <strong>of</strong> D-glucose and<br />
5-deoxy-D-xylose in the presence <strong>of</strong> p-toluidine, benzylamine and dibenzylamine<br />
with different acid catalysts. We have found that p-toluidine and dibenzylamine<br />
only were able to enter into rearrangement. The products after rearrangement with<br />
p-toluidine possessed cyclic form. In the case <strong>of</strong> dibenzylamine the sugar was found<br />
in open form. For the removal <strong>of</strong> benzyl groups reduction by 10 % Pd/C was used.<br />
As products 1-amino-3,4,5,6-tetrahydroxyhexane-2-on and 1-amino-3,4-dihydroxypentane-2-on<br />
were prepared. These compounds can be used for the insertion <strong>of</strong><br />
sugar stereogenic centers with hydroxyl groups to various organic molecules. In<br />
our case we intended to use this sugar chain to introduction to substituted pteridine<br />
moiety.<br />
Keywords: Amadori rearrangement, conditions, products<br />
.21
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P10 Solvent-Free Oxidative Deprotection<br />
<strong>of</strong> Trimethylsilyl Ethers with Calcium<br />
Hypochlorite<br />
.22<br />
Mohammad M. Mojtahedi, M. Saeed Abaee, Hassan Abbasi<br />
Chemistry and Chemical Engineering Research Center <strong>of</strong> Iran,<br />
P.O.Box 14335-186 Tehran Iran<br />
mojtahedi@ccerci.ac.ir<br />
Trimethylsilylation <strong>of</strong> alcohols is a very common practice in organic synthesis<br />
to protect hydroxyl groups. Such maneuver maintains the hydroxyl functionality<br />
and prevents its oxidation during reactions. However, sometimes, it is required to<br />
convert silyl ethers into their corresponding carbonyl structures. This conversion<br />
could be either carried out in a two step desilylation-oxidation process or directly<br />
achieved in a one pot reaction.<br />
In the present article, a considerably fast and mild microwave-assisted direct<br />
conversion <strong>of</strong> benzylic silyl ethers with calcium hypochlorite is reported under solvent-free<br />
conditions using montmorillonite K-10 solid support.<br />
Ca(ClO) 2 ,MW<br />
montmorillonite<br />
1a-i 2a-i<br />
Keywords: oxidative deprotection, calcium hypochlorite<br />
O
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P11 Ionic Liquid Promoted Synthesis <strong>of</strong> Benz<strong>of</strong>urans<br />
at Room-Temperature<br />
Ali Sharifi, M. Saeed Abaee, Bahram Zamiri, Mojtaba Mirzaei<br />
Chemistry and Chemical Engineering Research Center <strong>of</strong> Iran,<br />
P.O.Box 14335-186 Tehran Iran<br />
Sharifi@ccerci.ac.ir<br />
Benz<strong>of</strong>uran derivatives constitute highly valuable heterocyclic motifs found in<br />
the structure <strong>of</strong> many natural and synthetic products. Derivatives <strong>of</strong> these compounds<br />
are known to possess important pharmaceutical, antifungal, and antitumor<br />
properties. Additionally, benz<strong>of</strong>urans are used in cosmetic formulations and have<br />
application as precursors for optical brighteners.<br />
Although many methods are available for preparation <strong>of</strong> benz<strong>of</strong>urans, many<br />
<strong>of</strong> these methods are still conducted at high temperature, require the use <strong>of</strong> commercially<br />
unavailable starting materials, conducted in refluxing solvents, or need<br />
an external stimulant to proceed. In continuation <strong>of</strong> our previous experiences on<br />
environmentally sustainable reactions, we would like to herein report a novel procedure<br />
for ionic liquid promoted condensation <strong>of</strong> α-haloketones with various salicylaldehyde<br />
derivatives performed at room temperature in the presence <strong>of</strong> potassium<br />
carbonate.<br />
O<br />
O<br />
R O<br />
X<br />
R<br />
OH<br />
+<br />
Y<br />
[hmim][PF 6]<br />
r.t.; K<br />
Cl 2CO3 X<br />
O<br />
R = H, Me<br />
X = H, OMe, NO2, Br<br />
Y = H, Cl, Br, OMe 50-98%<br />
Keywords: benz<strong>of</strong>urans, ionic liquid<br />
Y<br />
.2
Section 4 – Chemistry <strong>of</strong> Organic Materials<br />
Posters<br />
4-P12 Crystal Engineering <strong>of</strong> Glycoluril Dimers<br />
.2<br />
Marek Štancl, Vladimír Šindelář<br />
Department <strong>of</strong> Chemistry, Masaryk University<br />
Kotlářská 2, 611 37 Brno, Czech Republic<br />
sindelar@chemi.muni.cz<br />
Glycolurils are bicyclic heterocycles, which have found application as building<br />
blocks <strong>of</strong> many supramolecular objects e.g., macrocyclic cucurbiturils (CB). Fundamental<br />
building block <strong>of</strong> the CB is methylene-bridged glycoluril dimer. So far, only<br />
the glycoluril dimers bearing various groups in the position 7 and 8 appeared in<br />
literature. Herein we report the synthesis <strong>of</strong> methylene-bridged glycoluril dimers,<br />
which better resemble CB. Selective method for the synthesis <strong>of</strong> 1,6-substituted glycolurils<br />
has been developed. The glycolurils have been used for the synthesis <strong>of</strong><br />
methylelne-bridged glycoluril dimers bearing hydrogen atoms on their convex face.<br />
Depending on the side walls <strong>of</strong> the dimer different self-assembly in the solid state<br />
have been described using X-ray crystallography.<br />
Keywords: glycoluril, glycoluril dimer
Section 5:<br />
Photochemistry<br />
.1
Lectures<br />
.
Section – Photochemistry<br />
Lectures<br />
5-L01 EPR and UV Study on Photocatalytic Activity <strong>of</strong><br />
Titanium Dioxide Powders<br />
Vlasta Brezová, Zuzana Vrecková, Dana Dvoranová<br />
Institute <strong>of</strong> Physical Chemistry and Chemical Physics, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
vlasta.brezova@stuba.sk<br />
The detoxification <strong>of</strong> polluted water by semiconductor photocatalysis based on<br />
the photoexcitation <strong>of</strong> titanium dioxide is nowadays accepted as promising technique<br />
also for industrial applications. The degradation <strong>of</strong> a variety <strong>of</strong> toxic organic<br />
contaminants is caused by the non-selective attack <strong>of</strong> hydroxyl radicals produced<br />
upon ultra-band gap irradiation <strong>of</strong> TiO 2 .<br />
The formation <strong>of</strong> photoinduced free radicals was monitored by in situ EPR spectroscopy,<br />
using as indicators N-oxide and nitrone spin trapping agents. EPR spin trapping<br />
technique confirmed the photoinduced formation <strong>of</strong> spin adducts, which Hamiltonian<br />
parameters are in agreement with addition <strong>of</strong> hydroxyl radical to the double bond<br />
<strong>of</strong> spin traps. The ability to generate free radicals upon TiO 2 photoexcitation was also<br />
followed by semi-stable free radicals (Tempol, ABTS •+ , DPPH), and the TiO 2 photocatalytic<br />
activity was indicated here by a continuous decrease <strong>of</strong> radical concentrations.<br />
The effective generation <strong>of</strong> hydroxyl radicals on TiO 2 surface primary requires adequate<br />
absorption <strong>of</strong> incident radiation by TiO 2 , which is strongly influenced by the optical<br />
properties <strong>of</strong> TiO 2 aqueous suspensions. Consequently, the absorption and scattering<br />
coefficients <strong>of</strong> TiO 2 samples were evaluated from the measured extinction spectra using<br />
Kubelka-Munk analysis. The data obtained by EPR and UV spectroscopy served as a<br />
basis for the calculation <strong>of</strong> quantum efficiency <strong>of</strong> photocatalytic reactions on TiO 2 .<br />
Keywords: TiO 2 , EPR spectroscopy, UV spectroscopy<br />
.
Section – Photochemistry<br />
Lectures<br />
5-L02 Photocatalytic Degradation <strong>of</strong> Formic Acid on<br />
TiO 2 thin Layers<br />
.<br />
Jana Chomoucká, Petr Dzik, Michal Veselý, Eric Puzenat and Chantal<br />
Guillard<br />
Faculty <strong>of</strong> chemistry, Institute <strong>of</strong> Physical and Applied Chemistry,<br />
Brno University <strong>of</strong> Technology, Purkyňova 118, 612 00 Brno, Czech Republic<br />
chomoucka@fch.vutbr.cz<br />
In recent years, many studies have been focused on the photocatalytic degradation<br />
<strong>of</strong> organic compounds mediated by semiconductor particles acting as photocatalysts.<br />
In particular, titanium dioxide has been widely employed, thanks to its<br />
outstanding photocatalytic activity and hight stability.<br />
TiO 2 thin films were deposited onto borosilicate glass plates by sol-gel technique<br />
using dip-coating and printing methods. Formic acid (FA) was choosen because<br />
<strong>of</strong> simple mechanism <strong>of</strong> degradation: it undergoes direct mineralisation to<br />
CO 2 and H 2 O without the formation <strong>of</strong> any stable intermediate species. Moreover,<br />
it also represents a possible final step in the photodegradation <strong>of</strong> more complex<br />
organic compounds. Photocatalytic activity was evaluated by examining the oxidation<br />
rate <strong>of</strong> formic acid aqueous solution upon UV irradiation in a pyrex cylindric<br />
reactor. HPLC analysis was used for detection <strong>of</strong> FA concentration. The obtained<br />
values <strong>of</strong> initial reaction rate for various FA initial concentrations were treated using<br />
Lagmuir-Hinshelwood model. The influence <strong>of</strong> TiO 2 layer number (dip-coating<br />
method) and the value <strong>of</strong> TiO 2 dot area (printing method) on the rate <strong>of</strong> FA photocatalytic<br />
degradation were tested.<br />
The photocatalytic performances <strong>of</strong> TiO 2 coatings were correlated to their<br />
physico-chemical properties.<br />
Keywords: photoctalytic degradation, formic acid
Section – Photochemistry<br />
Lectures<br />
5-L03 Kinetic <strong>of</strong> Degradation <strong>of</strong> Historical Documents<br />
Containing Iron-Gall Inks<br />
Michal Čeppan, Viera Jančovičová, Milena Reháková, Andrej Buzinkay<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava<br />
michal.ceppan@stuba.sk<br />
Deterioration <strong>of</strong> paper documents containing iron-gall inks is supposed to be a<br />
combination <strong>of</strong> two degradation pathways – acid hydrolysis <strong>of</strong> cellulose and oxidative<br />
degradation <strong>of</strong> cellulose. Iron gall inks contain transition metals, such as iron<br />
and copper, catalyzing the radical oxidation <strong>of</strong> the substrate, as well as acids, catalyzing<br />
its hydrolysis. Transition metals are capable to enter Fenton and Fenton-like<br />
type <strong>of</strong> reactions and catalyze homolytic decomposition <strong>of</strong> peroxides with production<br />
<strong>of</strong> hydroxyl radicals. Hydroxyl radicals can oxidize cellulose and induce degradation<br />
<strong>of</strong> cellulose.<br />
The influence <strong>of</strong> copper ions in iron-gall inks on the rate <strong>of</strong> degradation and<br />
change <strong>of</strong> optical properties <strong>of</strong> aged model documents were studied. Rate constants<br />
<strong>of</strong> degradation <strong>of</strong> systems containing various ratio Cu:Fe in a range <strong>of</strong> pH 3-6 were<br />
determined using viscometric measurements and Ekenstam equation. It was found,<br />
that in pH around 3 the ratio Cu:Fe in inks does not significantly affect the rate <strong>of</strong><br />
degradation and probably acid hydrolysis is predominant pathway <strong>of</strong> degradation.<br />
At higher pH the rate <strong>of</strong> degradation depends on the ratio Cu:Fe in inks and oxidation<br />
degradation is more significant. The change <strong>of</strong> colorimetric properties (CIE Lab<br />
lightness, chroma and hue angle) during aging also point out to the role <strong>of</strong> oxidative<br />
degradation in the range <strong>of</strong> higher pH.<br />
Keywords: iron gall inks, degradation <strong>of</strong> paper<br />
.
Section – Photochemistry<br />
Lectures<br />
5-L04 Photochemical Transformations <strong>of</strong> Anticancer<br />
Drug Irinotecan<br />
.<br />
Dana Dvoranová, Vlasta Brezová,<br />
Zuzana Vrecková, Marián Valko<br />
Institute <strong>of</strong> Physical Chemistry and Chemical Physics, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
dana.dvoranova@stuba.sk<br />
Irinotecan (CPT-11 or Camptosar ® ) used in the clinical cancer treatment, is a<br />
water-soluble semisynthetic analogue <strong>of</strong> natural quinoline alkaloid camptothecin.<br />
Molecule <strong>of</strong> CPT-11 represents a pro-drug converted in vivo to its active metabolite<br />
acting as an antineoplastic agent inhibiting the eukaryotic DNA topoisomerase I.<br />
Previously, it has been proposed that coincident presence <strong>of</strong> transition metal ions<br />
and UVA radiation enhanced the cytotoxic activity <strong>of</strong> several anticancer drugs possessing<br />
quinoline-like structure.<br />
Our investigation was focused on photochemical transformations <strong>of</strong> CPT-11<br />
in aqueous and dimethylsulfoxide solutions, as well as on the influence <strong>of</strong> different<br />
concentrations <strong>of</strong> Cu(II) ions added into photochemical system. The deoxygenated<br />
and aerated solutions <strong>of</strong> CPT-11 and Cu(II)/CPT-11 were UVA photoexcited<br />
(λ > 300 nm), and the photoinduced changes were monitored by means <strong>of</strong> EPR and<br />
UV/Vis spectroscopy. EPR spin trapping technique with different types <strong>of</strong> spin trap<br />
agents serves as a tool to identify photoproduced reactive radicals.<br />
Keywords: Irinotecan, EPR spectroscopy, Cu(II) ions
5-L05 Thin Layers <strong>of</strong> TiO 2 Prepared<br />
by Inkjet Printing<br />
Petr Dzik, Jana Chomoucká, Michal Veselý<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
petr@dzik.cz<br />
Section – Photochemistry<br />
Lectures<br />
Transparent thin layers <strong>of</strong> photocatalytic TiO 2 were prepared using conventional<br />
sol-gel chemistry and novel method <strong>of</strong> sol delivery to the substrate. We used<br />
a well known sol chemistry based on tetraisopropoxy titanate and acetylacetone as<br />
stabilizer. Prepared sol was loaded into an ordinary <strong>of</strong>fice inkjet printer equipped<br />
with piezoelectric print head. Sol was then printed onto pyrex glass plates, gelled at<br />
110 °C and calcinated at 450 °C. Thus we prepared transparent thin layers <strong>of</strong> TiO 2 <strong>of</strong><br />
varying thickness and surface morphology.<br />
Properties <strong>of</strong> prepared layers were studied using optical microscopy, SEM and<br />
AFM. Photocatalytic performance was evaluated by the rate <strong>of</strong> DCIP decomposition<br />
and surface properties were studied by contact angle change.<br />
In this way we were able to prepare thin layers <strong>of</strong> TiO 2 with excellent optical<br />
properties and photocatalytic performance comparable to dip- or spin-coated<br />
layers. Inkjet printing proved to be very elegant and clean method for sol deposition<br />
with minimum waste. Unlike the traditional methods <strong>of</strong> dip- and spin-coating, inkjet<br />
printing is capable <strong>of</strong> coating large areas <strong>of</strong> substrate, being limited only by the<br />
width <strong>of</strong> used inkjet printer.<br />
Keywords: TiO 2 , photocatalysis, sol-gel, inkjet printer,<br />
.
Section – Photochemistry<br />
Lectures<br />
5-L06 Photocatalytic Properties <strong>of</strong> TiO 2 and<br />
Photosensitizing Materials for Bactericidal<br />
Applications<br />
.10<br />
C. Guillard, K. Benabbou, T.-H. Bui, T. Pigot, S. Pigeot-Remy, P. Lejeune,<br />
S. Lacombe<br />
Institut de recherche sur la catalyse et l’environnement de Lyon (IRCELYON)<br />
Université Lyon 1, UMR 5256 CNRS<br />
2 Avenue Albert Einstein 2<br />
Villeurbanne cedex France.<br />
chantal.guillard@ircelyon.univ-lyon1.fr<br />
Several water disinfection technologies are available, such as chlorination and<br />
ozonation However, in addition to their high costs, they can lead to the formation <strong>of</strong><br />
harmful disinfection by-products (DBPs), among the most dangerous <strong>of</strong> which are<br />
the trihalomethanes (THMs), well-known for their high carcinogenic potential [1].<br />
Among the new oxidation methods or “Advanced Oxidation Processes” (AOP),<br />
heterogeneous photocatalysis appears as an emerging destructive technology leading<br />
to the total mineralization <strong>of</strong> pollutants at ambient temperature and atmospheric<br />
pressure using a cheap photocatalyst, TiO , having the possibility <strong>of</strong> using a part<br />
2<br />
<strong>of</strong> solar energy as the UV source. Its principle is based on the formation <strong>of</strong> highly<br />
reactive oxygen species (ROS), such as OH • , O 2<br />
•– HO2<br />
• , capable <strong>of</strong> destroying chemi-<br />
cal and biological water contaminants, under irradiation <strong>of</strong> semiconductor particles<br />
(photocatalyst) with photons <strong>of</strong> energy higher than or equal to its band gap energy.<br />
Other types <strong>of</strong> catalysts begin to appear, such as photosensitizing materials<br />
which generated singlet oxygen under UV but also visible light.<br />
In this work, we studied the inactivation <strong>of</strong> E. coli using industrial TiO 2 photocatalysts,<br />
Degussa P25 and Millennium PC500, either suspended or supported and<br />
different sensitizing materials prepared by using sensitizers such as anthraquinone,<br />
9,9-dicyanoanthracene, 4-benzoylbenzoic acid encapsulated in silica matrices. The<br />
influence <strong>of</strong> parameters, such as the nature and amount <strong>of</strong> the sensitizer or TiO 2 and<br />
<strong>of</strong> the irradiation intensity was investigated.<br />
Keywords: photocatalysis, TiO 2 , sensitizing materials, desinfection, E. coli
5-L07 Promising Perspectives in Photocatalysis<br />
Chantal Guillard, Eric Puzenat, Jean-Marie Herrmann<br />
IRCELYON, UMR CNRS 5634,<br />
Université de Lyon 1, 2 av. Albert Einstein, Villeurbanne cedex, 69626, France,<br />
Chantal.guillard@ircelyon.univ-lyon1.fr<br />
Section – Photochemistry<br />
Lectures<br />
Heterogeneous Photocatalysis based on titania originated some 40 years ago<br />
but the interest <strong>of</strong> industry for environmental applications emerged only 10 years<br />
ago. These applications mainly concerned self-cleaning materials and water and air<br />
purification. However, norms are required. For instance, French AFNOR created the<br />
B44-A photocatalytic commission in September 2007, which is composed <strong>of</strong> scientists<br />
from National Laboratories including one <strong>of</strong> us (C. G.) and from industry. In<br />
the first part <strong>of</strong> the talk, the active species generated at the surface <strong>of</strong> a photocatalyst<br />
will be presented under different reaction conditions (liquid phase (water, solvents)<br />
and gas phase), corresponding to dedicated applications such as air and water treatments,<br />
self-cleaning materials, fine chemistry, hydrogen production, etc...<br />
The comparison <strong>of</strong> reaction mechanisms occurring in equeous and gas phases<br />
is made possible by identifying the intermediate products formed during the degradation<br />
<strong>of</strong> pollutants in both phases. The prediction <strong>of</strong> reaction pathways in aqueous<br />
phase is based on the attack by OH° radicals on different families <strong>of</strong> organic pollutants<br />
and subsequently verified by the experiments. Some applications <strong>of</strong> photocatalysis<br />
(decoloration <strong>of</strong> dyes, detoxification <strong>of</strong> water, use <strong>of</strong> solar energy, air treatment<br />
(VOC and odor removal), self-cleaning materials), developed at IRCELYON<br />
will be presented and put in realistic perspectives.<br />
Keywords: photocatalysis, water and air treatment, selfcleaning materials,<br />
disinfection<br />
.11
Section – Photochemistry<br />
Lectures<br />
5-L08 Interactions in Iron Gall Inks in Air and<br />
Nitrogen Atmosphere<br />
.12<br />
Viera Jančovičová, Michaela Ciglanská, Bohuslava Havlínová,<br />
Michal Čeppan<br />
Department <strong>of</strong> Printing Arts Technology and Photochemistry IPM,<br />
Faculty <strong>of</strong> Chemical and Food Technology SUT,<br />
Radlinského 9, 812 37 Bratislava<br />
viera.jancovicova@stuba.sk<br />
The iron gall inks were one <strong>of</strong> the most important writing means used from the<br />
ancient times through the Middle Ages until the modern times. For preparation <strong>of</strong><br />
iron gall inks, gall nuts (polyphenols), vitriol (ferrous sulphate), gum Arabic, water,<br />
sometimes wine, beer, or vinegar as solvents, were used.<br />
Simple models <strong>of</strong> iron gall inks composed <strong>of</strong> gallic acid, ferrous sulphate, and<br />
gum Arabic in various relations were prepared. The process <strong>of</strong> iron ion complex<br />
formation with gallic acid on air and under nitrogen atmosphere was investigated<br />
using UV Vis spectroscopy, pH measurements, and by monitoring the concentration<br />
changes <strong>of</strong> Fe(II) ions. The admixture <strong>of</strong> Fe(II) ions to gallic acid on air induced a<br />
bathochromic shift <strong>of</strong> absorbance bands in UV region and formation <strong>of</strong> new absorbance<br />
band in the visible region following the colour complex formation. Nitrogen<br />
atmosphere significantly retarded this reaction and the samples remained colorless.<br />
Keywords: iron gall inks, complex formation, spectral properties
Section – Photochemistry<br />
Lectures<br />
5-L09 Reactivity <strong>of</strong> Hydroxyl Radical on Benzene<br />
Ring and Side Chain in the Photocatalytic<br />
Degradation <strong>of</strong> Phenylurea Derivatives<br />
Jaromír Jirkovský, Gottfried Grabner<br />
J. Heyrovský Institute <strong>of</strong> Physical Chemistry, Dolejškova 3,<br />
CZ-182 23 Prague, Czech Republic<br />
jaromir.jirkovsky@jh-inst.cas.cz<br />
Mechanistic studies <strong>of</strong> the photocatalytic degradation <strong>of</strong> some ring-halogenated<br />
and side-chain-substituted phenylurea derivatives on nanocrystalline titanium<br />
dioxide have been carried out. Several products resulting from oxidation <strong>of</strong> the aliphatic<br />
side chain induced by hydroxyl radical were identified using HPLC. A detailed<br />
picture <strong>of</strong> side-chain reactions proceeding via two successive demethylation<br />
steps could be established. Degradation proceeded according to first-order kinetics,<br />
which means that the system remained in a photostationary state with respect to<br />
hydroxyl radical concentration during the whole reaction sequence. Quantitative<br />
analysis revealed that the side-chain reactions represent only 30 % <strong>of</strong> the total photodegradation,<br />
the remainder being due to reaction on the benzene ring leading to<br />
ring-opening products, which escaped HPLC detection. In order to get more information<br />
on the relative amount <strong>of</strong> ring vs. side chain attack, laser flash photolysis was<br />
used. Hydroxyl radicals were generated by photoionization <strong>of</strong> [Fe(CN) 6 ] 4- in neutral<br />
aqueous solution saturated with N 2 O; they then reacted either with [Fe(CN) 6 ] 4- to<br />
give [Fe(CN) 6 ] 3- or with the phenylurea derivative on the ring or at the side chain.<br />
The first two <strong>of</strong> these reactions could be followed by formation <strong>of</strong> the products<br />
([Fe(CN) 6 ] 3- and OH adducts).<br />
Experimental results obtained by varying reactant concentrations were fitted<br />
using nonlinear regression. As a result, the rate constant for reaction <strong>of</strong> hydroxyl<br />
radical on the ring was found to decrease with the number <strong>of</strong> Cl substituents<br />
while that for reaction at the side chain increased with the number <strong>of</strong> <strong>abstract</strong>able<br />
H atoms.<br />
.1
Section – Photochemistry<br />
Lectures<br />
5-L10 Approaches to standard photocatalyst tests in<br />
gaseous and liquid phase<br />
.1<br />
Josef Krýsa<br />
Institute <strong>of</strong> Chemical Technology, Department <strong>of</strong> Inorganic Technology,<br />
Technická 5, Prague 6, CZ-166 28,<br />
Josef.Krysa@vscht.cz<br />
Photoactivity <strong>of</strong> TiO 2 can be understood as the ability to form superhydrophilic<br />
surface (self-cleaning properties), the ability to inactivate microorganisms (antibacterial<br />
properties) and the ability to oxidise (degrade) organic pollutants. These pollutants may<br />
be present in various phases. In air (malodorous substances, volatile solvents), in waters<br />
(dyes, aromatics, chlorinated hydrocarbons, pesticides) and in the form <strong>of</strong> compact films<br />
(methyl stearate, oleic acid).<br />
This paper presents some approaches to standard photocatalyst tests in gaseous<br />
and liquid phase. The choice <strong>of</strong> suitable model compounds as acetone, hexan,<br />
toluene for gas phase and 4-chlorophenol, dyes Acid Orange 7, Methylene Blue,<br />
herbicides monuron, atrazine for liquid phase is critically discussed together with<br />
the selection <strong>of</strong> UV light source and photoreactor design. The demand for analytical<br />
instrumentation together with the method <strong>of</strong> photoactivity expression is also<br />
assessed.<br />
Keywords: photocatalysis, gaseous, liquid phase
Section – Photochemistry<br />
Lectures<br />
5L-11 Testing network for verification <strong>of</strong> photocatalytic<br />
products and technologies for<br />
environmental benefit – PETV<br />
František Peterka<br />
NANOPIN-ATG (National Research Centre For Nanosurfaces Engineering),<br />
Nad Kazankou 11 ,171 00 Praha 7-Troja ,Czech Republic<br />
fpet@mbox.vol.cz<br />
The purpose <strong>of</strong> technology verification is to check technology performance<br />
data by an authorized third party using specified technology verification protocols.<br />
A successful verification should deliver an independent pro<strong>of</strong> that the technology<br />
performance claim <strong>of</strong> the technology provider is correct. Efforts in this field are<br />
presently being made by some national and international technical committees.<br />
Standardisation must answer two questions: the first is market-oriented because<br />
it has to take care <strong>of</strong> the final user expectation and to reflect producer/seller<br />
advertising/market penetration requirements; the second is to answer on the suitability<br />
<strong>of</strong> a product for use requirements (efficacy, chemical durability, mechanical<br />
properties) and on the assessment for the type <strong>of</strong> application (materials, goods,<br />
substrates). Common to all standardization tests is the principle that standard tests<br />
have to avoid discrimination, which is a preferential evaluation for some materials<br />
depending on the test conditions.<br />
Standardisation action as proposed in this project (PETV) will serve to the enhanced<br />
competitiveness <strong>of</strong> European industry in order to take a leading role in this<br />
domain <strong>of</strong> photo-catalysis technology and its industrial application.<br />
Keywords: photocatalysis, application, verification, standardization<br />
.1
Section – Photochemistry<br />
Lectures<br />
5-L12 Evaluation <strong>of</strong> the Photocatalytic Properties<br />
<strong>of</strong> TiO 2 Thin Film Layers. Application to Selfcleaning<br />
Glass<br />
.1<br />
E. Puzenat, J. Drbohlavová, L. Péruchon, J.-M. Herrmann and C. Guillard<br />
IRCELYON UMR CNRS 5256,<br />
Université de Lyon, 2 av. Albert Einstein, Villeurbanne cedex, 69626, France,<br />
eric.puzenat@ircelyon.univ-lyon1.fr<br />
During the last fifteen years, photocatalytic applications have been mainly developed<br />
in the fields <strong>of</strong> water and air treatments. Beside these two fields, self-cleaning<br />
materials have been extensively studied and are now commercialized. Nevertheless,<br />
the complete understanding <strong>of</strong> the mechanisms occurring at their surface is<br />
still missing. The present communication is focused on self-cleaning glasses. These<br />
glasses are based on the photocatalytic and superhydrophilic properties <strong>of</strong> a submicronic<br />
layer <strong>of</strong> photocatalytic TiO deposited on their surface. Under natural or ar-<br />
2<br />
tificial UV-irradiation, electrons and holes photogenerated insideTiO produce free<br />
2<br />
radicals (OH• •– , O ...) in the double presence <strong>of</strong> oxygen and water. These radicals are<br />
2<br />
able to induce oxidation <strong>of</strong> the organic stains adsorbed on the glass surface, thus<br />
reducing their adherence. Moreover, under UV-irradiation, TiO layers acquired su-<br />
2<br />
perhydrophilic properties leading to the spreading out <strong>of</strong> the water droplets at the<br />
surface and consequently to the formation <strong>of</strong> a water thin film.<br />
Tests in liquid, gaseous and deposited phases have been performed to evaluate<br />
the photocatalytic properties <strong>of</strong> TiO thin film layers. Intrinsic characteristics <strong>of</strong> the<br />
2<br />
layers such as preparation method, thickness or porosity have been related to the<br />
efficiency <strong>of</strong> the layers. Moreover, environmental parameters such as the temperature,<br />
the wavelength range, the light intensity, the presence <strong>of</strong> mineral salts and the<br />
nature <strong>of</strong> organic pollutant families (fatty acids, heavy alkanes and various PAH’s<br />
(Polycyclic Aromatic Hydrocarbons)) has been studied to first better understand the<br />
photocatalytic processes occurring at the surface <strong>of</strong> the glass and secondly to help<br />
the establishment <strong>of</strong> criteria for a normalized test.
Section – Photochemistry<br />
Lectures<br />
5-L13 Study <strong>of</strong> Stabilization <strong>of</strong> Documents Containing<br />
Iron Gall Inks by Treatment <strong>of</strong> Atmospheric DBD<br />
N 2 Plasma<br />
Milena Reháková, Michal Čeppan, Milan Mikula<br />
Slovak University <strong>of</strong> Technology in Bratislava, Faculty <strong>of</strong> Chemical and Food Technology<br />
Radlinského 9, 812 37 Bratislava, Slovak Republic<br />
milema.rehakova@stuba.sk<br />
The aim <strong>of</strong> this experimental work was to investigate the possibilities <strong>of</strong> plasmo-chemical<br />
methods use on stabilization documents containing iron gall inks. The<br />
work was concentrated on enhancement <strong>of</strong> strength and stability <strong>of</strong> historical paper<br />
documents treated in dielectric barrier discharge (DBD) at atmospheric pressure in<br />
combination with natural polymer chitosan and/or anti-oxidizing agent.<br />
The mechanical properties - holding endurance, breaking length, chemical<br />
properties - pH <strong>of</strong> aqueous extracts, degree <strong>of</strong> polymerization and optical properties<br />
- the coordinates <strong>of</strong> colour space, total colour difference (fading) <strong>of</strong> modified<br />
papers with iron gall inks were tested. The method <strong>of</strong> accelerated ageing in airtight<br />
glass tubes at an elevated temperature for a certain time was used. Influence <strong>of</strong><br />
components <strong>of</strong> modification systems (neutralizing and strengthening substances,<br />
antioxidant) was considered.<br />
Keywords: iron gall inks, ageing<br />
.1
Section – Photochemistry<br />
Lectures<br />
5-L14 An Overview <strong>of</strong> Inkjet Printouts Accelerated<br />
Ageing Methods<br />
.1<br />
Jiří Stančík, Michal Veselý, Petr Dzik<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Purkyňova 118, Brno 61200<br />
xcstancik@fch.vutbr.cz<br />
Accelerated ageing is a commonly used method for predicting the lifetime <strong>of</strong><br />
various materials from many branches <strong>of</strong> industry. It is a necessary element <strong>of</strong> material<br />
testing in the textile or automotive industry for years. Changes came with the<br />
progress <strong>of</strong> printed photos, new standards and procedures had to be found for testing<br />
printouts.<br />
Standards for classic photography or <strong>of</strong>fset print cannot be applied for inkjet<br />
print because <strong>of</strong> different behavior <strong>of</strong> ink used in inkjet printers. The adjustments <strong>of</strong><br />
used standards are in progress recently.<br />
This paper brings an overview <strong>of</strong> the various factors that affect the permanence<br />
<strong>of</strong> digitally printed printouts. Various types <strong>of</strong> accelerated tests methods are discussed<br />
with respect to past and current standards. Some problems <strong>of</strong> printouts accelerated<br />
ageing are discussed too.<br />
Keywords: accelerated ageing tests, inkjet print.
Section – Photochemistry<br />
Lectures<br />
5-L15 Subjective and Objective Evaluation <strong>of</strong><br />
Recognisability <strong>of</strong> Black Character on Paper<br />
A. Szitás, M. Jablonský, S. Katuščák S.,<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Slovak University <strong>of</strong> Technology in Bratislava, Radlinskeho 9,<br />
SK-812 37 Bratislava, Slovak Republic<br />
attila.szitas@stuba.sk<br />
Generally it is believed that the recognisability <strong>of</strong> black character on paper humano<br />
modo (RS) dependens on the contrast between text character and background<br />
(∆EC-B). Antropomorphous colour systems such as CIE Lab has been developed to<br />
express the total and partial difference in human-like manner. The contrast can be<br />
express by total colour difference (∆E), or difference <strong>of</strong> brightness (∆B), lightness<br />
(∆L*). By psychometric measurement it was observed that dependence between<br />
∆EC-B and subjective abilitz <strong>of</strong> observer to see and recognize charakter is non linear<br />
and in the zone <strong>of</strong> košer values <strong>of</strong> kontrast is not valid at all. RS doesn´t drop with<br />
decrease <strong>of</strong> the contrast, or can even rise. In the specific zone <strong>of</strong> optical contrasts<br />
doesn´t apply recognisability <strong>of</strong> black character on paper goes down with decrease<br />
<strong>of</strong> ∆EC-B. This paper was to verify dependence between objective ∆EC-B and visual<br />
subjective RS with constants blackness on paper background with variable brightness<br />
(B), lightness (L*) or blackness (Bb, MSWord) by measurement <strong>of</strong> correctly<br />
recognised characters focus the due observer distance (l). The observed dependence<br />
<strong>of</strong> recognisability black character on the color difference ∆EC-B is described as<br />
RS = 503,45.(0,3363. (∆EC-B)2 – 37,246∆EC-B + 1514,069)-1<br />
Keywords: recognisability, contrast<br />
.1
Section – Photochemistry<br />
Lectures<br />
5-L16 Pigments for Photocatalytic Paints<br />
.20<br />
Jan Šubrt<br />
Ústav anorganické chemie AV ČR<br />
250 68 Řež, Czech Republic<br />
subrt@iic.cas.cz<br />
During recent years environmental problems play an important role in the applications<br />
<strong>of</strong> titania pigments. These include the use <strong>of</strong> their photocatalytic behavior<br />
in the development <strong>of</strong> self-cleaning surfaces for buildings, i.e. antisoiling and antifungal<br />
growth and NO X emissions reduction. In terms <strong>of</strong> self-cleaning paints, the<br />
idea is to limit the oxidation and chalking <strong>of</strong> the paint film to the very near surface<br />
layers such that over time with weathering rain water will wash the top layer leaving<br />
an underlying clean fresh surface. In this regard, mixtures <strong>of</strong> pigmentary rutile<br />
and nanoparticle anatase pigments appear to provide the best option, with the former<br />
inducing some level <strong>of</strong> base stability, whereas the presence <strong>of</strong> the latter gives<br />
rise to surface activity.<br />
We tested various types <strong>of</strong> nanocrystalline anatase with high photoactivity<br />
in a silicate based photocatalytic paint system in order to elucidate the properties<br />
necessary to achieve high level <strong>of</strong> self-cleaning activity. After three years <strong>of</strong> testing<br />
under natural conditions the paints show different behavior in dependence on the<br />
nature <strong>of</strong> the photoactive nanocrystalline titania used. The self-cleaning activity <strong>of</strong><br />
the paints depends not only on the photoactivity <strong>of</strong> the pigment, but mainly on the<br />
strength <strong>of</strong> binding among the nanoparticles in the photoactive anatase pigment.<br />
Keywords: photocatalytic paints, anatase
5-L17 Organometallic Cationic Photoinitiators<br />
Section – Photochemistry<br />
Lectures<br />
Jan Vališ, Bohumil Jašúrek, Tomáš Syrový, Katarína Remenárová,<br />
Tomáš Weidlich<br />
University <strong>of</strong> Pardubice, Faculty <strong>of</strong> Chemical Technology,<br />
Department <strong>of</strong> Graphic Arts and Photophysics,<br />
Studentská 95, 532 10 Pardubice, Czech Republic<br />
jan.valis@upce.cz<br />
Several arene-iron complexes ((η 5 -2,4-cyclopentadien-1-yl)[(1,2,3,4,5,6-η)arene]<br />
ferrous hexafluorophosphate) were tested as photoinitiators for cationic polymerization.<br />
The UV light decomposes arene-ironcyclopentadienyl (arene-Fe + Cp)<br />
cation selectively to the corresponding aromatic compound and iron cyclopentadiene<br />
(CpFe + ) cation. Structure <strong>of</strong> aromatic compound affects decomposition upon UV<br />
light. FeCp + formed during irradiation is active species for cationic polymerization.<br />
Decomposition <strong>of</strong> arene-iron initiators upon UV light was followed by UV-VIS<br />
spectroscopy. It was measured the decrease <strong>of</strong> absorption band at about 245 nm<br />
after irradiation 2∙10 -4 M solution in acetonitrile. Super pressure mercury lamp was<br />
used as source <strong>of</strong> UV radiation. Extinction coefficients and energies need for achieving<br />
50 % conversion were calculated for all initiators.<br />
Efficiency <strong>of</strong> polymerization initiated by tested photoinitiators was followed by<br />
FTIR spectroscopy in vinylether and epoxide monomers. Results from FTIR showed<br />
that most <strong>of</strong> prepared organometallic photoinitiators can be used for initiation cationic<br />
UV polymerization with similar efficiency as commercial initiator Irgacure<br />
261.<br />
Keywords: cationic photoinitiator, UV polymerization, UV-VIS spectroscopy<br />
.21
Section – Photochemistry<br />
Lectures<br />
5-L18 Kinetics <strong>of</strong> Oxidative Processes on Inkjet-<br />
Printed thin Layers <strong>of</strong> Titanium Dioxide<br />
.22<br />
Michal Veselý, Petr Dzik, Mária Veselá,<br />
Jana Drbohlavová, Jana Chomoucká<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno<br />
vesely-m@fch.vutbr.cz<br />
Photocatalytic reactions with TiO 2 are used for organic compounds oxidation,<br />
metal reduction, disinfection <strong>of</strong> various surfaces and water. As the photogenerated<br />
active oxygen species are formed at the irradiated TiO 2 surface, this system can be<br />
utilized for microbes deactivation instead <strong>of</strong> the conventional methods such as UV<br />
irradiation, heat treatment or chemical disinfectant application.<br />
We used photocatalytic flow reactors for organic compound degradation and<br />
water sterilization. The photocatalytic flow reactor was designed as a system <strong>of</strong> parallel<br />
glass tubes, connected together by knee fittings permitting the studied suspension<br />
to circulate through the whole system. A successful photocatalytic reaction<br />
requires approaching <strong>of</strong> microorganism cells to the irradiated surface at a very close<br />
distance. Only under these conditions the photogenerated species can react with the<br />
cells. Therefore, optimal flow parameters, determining an effective adsorption on<br />
the irradiated surface were studied. Under these conditions the photocatalytic process<br />
<strong>of</strong> yeast killing was performed.<br />
Disinfection <strong>of</strong> solid surfaces is also <strong>of</strong> great interest. We performed experiments<br />
<strong>of</strong> yeast photokilling on printed titanium dioxide surface. The kinetics <strong>of</strong> both<br />
photocatalytic disinfection processes was studied and evaluated in dependence <strong>of</strong><br />
surface structure <strong>of</strong> printed layers.<br />
Keywords: titanium dioxide, printed layer, yeasts, kinetics
Section – Photochemistry<br />
Lectures<br />
5-L19 Model dyes in Titania photocatalytic systems<br />
Jiří Zita and Josef Krýsa<br />
Institute <strong>of</strong> Chemical Technology, Department <strong>of</strong> Inorganic Technology, Technická 5, Prague 6,<br />
CZ-166 28, Jiri.Zita@vscht.cz<br />
In order to compare the effectiveness <strong>of</strong> one photocatalytic layer with that <strong>of</strong><br />
another, and to be able to effect and demonstrate a commercially acceptable high<br />
degree <strong>of</strong> quality control on any SPC (semiconductor photocatalysis) product, such<br />
as self-cleaning glass, it is essential to have a set <strong>of</strong> agreed standard methods <strong>of</strong><br />
assessing SPC activity. The creation, validation and promotion <strong>of</strong> such a set <strong>of</strong> standard<br />
methods is currently in progress by an internationally-recognised body (ISO;<br />
TC206).<br />
Although the methods under consideration are not yet in the public domain, it<br />
appears timely to consider briefly some <strong>of</strong> those which have proved most popular<br />
in the past and one that has just recently been reported and appears most easily effected<br />
and to have a real future<br />
As a consequence Orange II, Methylene Blue, Resazurin and Plasmocorinth B<br />
appears ideally suited as a test reagents for assessing the photocatalytic activity <strong>of</strong><br />
titania films, such as generated in this work.<br />
Keywords: photocatalysis, model dyes<br />
.2
Section – Photochemistry<br />
Lectures<br />
5-L20 A Study on the Thickness Homogeneity and<br />
Refractive Index <strong>of</strong> Thin Organic Layers<br />
.2<br />
Oldřich Zmeškal, Ota Salyk, Michal Veselý, Petr Dzik<br />
Brno University <strong>of</strong> Technology<br />
Faculty <strong>of</strong> Chemistry, Purkynova 118, 612 00 Brno<br />
zmeskal@fch.vutbr.cz<br />
This paper deals with the utilization <strong>of</strong> optical and interference microscopy for<br />
the study <strong>of</strong> thin layers. We present a new and very simple method for the determination<br />
<strong>of</strong> refractive indexes <strong>of</strong> transparent layers based on interference phenomena.<br />
Both thin layer thickness and refractive index can be determined by this method.<br />
We used this method for a complex analysis <strong>of</strong> sandwich and gap structures <strong>of</strong><br />
organic semiconductor components (e.g. ITO/PEDOT/DPP/Alq 3 /Al) prepared by a<br />
combination <strong>of</strong> following procedures: vacuum vapour deposition and/or spin coating<br />
and/or inkjet printing. A series <strong>of</strong> photographs <strong>of</strong> one sample was recorded and<br />
analysed which gave us the thicknesses <strong>of</strong> individual layers, their homogeneity and<br />
their refractive indexes.<br />
Recorded images were processed by means <strong>of</strong> image analysis (correlative and<br />
fractal analysis). Image analysis was performed using application HarFA (Harmonic<br />
and Fractal Image Analyser), which has a wide potential <strong>of</strong> use not only for image<br />
analysis but for analysis <strong>of</strong> video clips, signals and numerical data as well.<br />
Results obtained by image analysis methods were confirmed and eventually<br />
further extended by ellipsometric measurements, which is unfortunately more time<br />
consuming and challenging.<br />
Keywords: organic thin films, refractive index, layer thickness, image, fractal,<br />
correlation analysis, ellipsometry
Posters<br />
.2
Section – Photochemistry<br />
Posters<br />
5-P01 Using <strong>of</strong> Vis-Nir Fibre Optics Reflectance<br />
Spectra for Identification <strong>of</strong> Iron-Gall Inks in<br />
Historical Documents<br />
Michal Čeppan, Daniela Pavlisová, Milena Reháková, Jarmila Dóriová<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37 Bratislava<br />
michal.ceppan@stuba.sk<br />
Absorption molecular spectroscopy provides useful tools for analysis <strong>of</strong> historical<br />
documents. Among others VIS-NIR reflectance spectroscopy is used to identify<br />
the presence <strong>of</strong> particular inks. Measured spectra sets are generally complex in their<br />
nature and the extraction <strong>of</strong> useful chemical information is not straightforward. The<br />
resolution <strong>of</strong> spectra sets and extraction <strong>of</strong> useful information can be enhanced by<br />
chemometric processing using multivariate factor analysis methods<br />
In this paper previously developed method <strong>of</strong> factor analysis was used to process<br />
VIS-NIR fibre optics reflectance spectra measured on historical drawings and<br />
documents with grey-brown inks and identification <strong>of</strong> iron gall inks.<br />
Iron gall inks containing transition metals, such as iron and copper, are catalyzers<br />
<strong>of</strong> degradation processes, generally known as “ink corrosion”, so their identification<br />
in drawings is <strong>of</strong> importance to understand the history and aesthetics <strong>of</strong> an<br />
object, to evaluate the risks involved with its use, and to judge the effects <strong>of</strong> conservation<br />
treatments.<br />
The results <strong>of</strong> spectroscopic investigation were validate by XRF spectroscopy<br />
and chemical spot tests.<br />
Keywords: factor analysis, historical documents, VIS-NIR fibre optics reflectance<br />
spectroscopy<br />
.2
Section – Photochemistry<br />
Posters<br />
5-P02 The Study <strong>of</strong> TiO 2 thin Films Photocatalytic<br />
Activity on Degradation <strong>of</strong> Yeast and Dye<br />
Pollutants<br />
.2<br />
Jana Chomoucká, Jana Drbohlavová, Petr Dzik, Mária Veselá,<br />
Michal Veselý<br />
Faculty <strong>of</strong> chemistry, Institute <strong>of</strong> Physical and Applied Chemistry<br />
Brno University <strong>of</strong> Technology, Purkyňova 118, 612 00 Brno, Czech Republic<br />
chomoucka@fch.vutbr.cz<br />
Among various oxide semiconductor photocatalysts, titanium dioxide (TiO ) 2<br />
appears to be a promising and important prospect for use in enviromental purification,<br />
because <strong>of</strong> its strong oxidizing power, photoinduced hydrophilicity, nontoxicity<br />
and long-term photostability.<br />
The antimicrobial properties <strong>of</strong> TiO thin films were tested on photocatalytic<br />
2<br />
killing <strong>of</strong> yeasts Candida tropicalis and Candida albicans. Generally, Candida is the most<br />
common cause <strong>of</strong> opportunistic mycoses (Candidiasis) worldwide. The antimicrobial<br />
effect <strong>of</strong> photocatalysis with TiO could be due to the presence <strong>of</strong> reactive oxygen<br />
2<br />
•– species (ROS), such as superoxide (O ), hydrogen peroxide (H2O ), and hydroxyl<br />
2<br />
2<br />
radical (HO• ), generated either by illuminated TiO or by the illumination (mainly<br />
2<br />
UV) <strong>of</strong> the cells. TiO layers were immobilised by dip-coating method on soda-<br />
2<br />
lime glass plates using sol-gel method with titanium tetraisopropoxide precursor<br />
in ethanol. The dependence <strong>of</strong> Candida tropicalis and Candida albicans survival ratio<br />
on irradiation time was determined by epifluorescent microscopy using Acridine<br />
Orange dye.<br />
The influence <strong>of</strong> TiO layer number on the photocatalytic oxidation 2,6-di-<br />
2<br />
chloindophenol was also studied in a desk reactor. The concentration decrease <strong>of</strong><br />
2,6-DCIP was evaluated spectr<strong>of</strong>otometrically.<br />
Keywords: titanium dioxide, photocatalytic killing
Section – Photochemistry<br />
Posters<br />
5-P03 The Influence <strong>of</strong> Photoinitiators and Aditives<br />
on the Photochemical Speed <strong>of</strong> Methacrylated<br />
PVAl<br />
Marcela Černá, Petr Dzik, Michal Veselý<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno 61200<br />
xccernam@fch.vutbr.cz<br />
This study deals with the cross-linking reaction <strong>of</strong> methacrylated poly(vinyl<br />
alcohol) (PVAl) by UV initiated non-linear polymerization in solid state. PVAl<br />
was modified by the glycidyl methacrylate. During this reaction the copolymer<br />
poly(vinyl alcohol-co-vinyl glycidyl methacrylate) was created.<br />
A thin layer <strong>of</strong> methacrylated PVAl solution was spin-coated onto anodized<br />
aluminum plates. Plates were exposed by UV radiation and cross-polymerization<br />
took place. We compared the effect <strong>of</strong> three different commercial photoinitiators.<br />
The concentration <strong>of</strong> each photoinitiator was varied from 0.5 % to 4 % (w/w) and the<br />
influence <strong>of</strong> the photoinitiator amount on photochemical speed <strong>of</strong> modified PVAl<br />
was investigated.<br />
Apart from the photoinitiator influence, we also investigated thermal properties<br />
<strong>of</strong> studied systems. It was found that crosslinking polymerization took place<br />
well below Tg. In order to perform the crosslinking reaction above Tg, we added<br />
different types and concentrations <strong>of</strong> plasticizers. The plasticizers caused a shift in<br />
the glass transition temperature. The shift was determined by the DSC (differential<br />
scanning calorimetry) method. The optimum dose <strong>of</strong> used aditives has been evaluated.<br />
.2
Section – Photochemistry<br />
Posters<br />
5-P04 TiO 2 Based Sensor with Nanostructured Surface<br />
for Gas Detection<br />
. 0<br />
Jana Drbohlavová, Jaromír Hubálek, Marina Vorozhtsova, Radim Hrdý<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Electrical Engineering and Communication,<br />
Departement <strong>of</strong> Microelectronics<br />
Údolní 53, 602 00 Brno, Czech Republic<br />
drbohla@feec.vutbr.cz<br />
Generally, solid semiconductor metal oxides (SMO) are used as a convenient<br />
material for monitoring the quality <strong>of</strong> air by means <strong>of</strong> different gases detection (O 2 ,<br />
H 2 , CO, NH 3 , NO x or hydrocarbons). We designed a new high sensitive gas sensor<br />
with titanium dioxide coating on nanostructure-modified surface <strong>of</strong> gold electrode.<br />
Nanorod-structured surface <strong>of</strong> Au electrode was fabricated using Al 2 O 3 nanoporous<br />
template sputtered on thick Au substrate. Before TiO 2 deposition, prepared<br />
nanorod-stucture modified electrode was fixed on corundum plate with thick-film<br />
platinum meander heater using glass paste. Finally, TiO 2 coatings were immobilized<br />
employing a sol-gel technology starting from titanium tetrapropoxide precursor,<br />
ethanol as solvent and acetyl-acetone as stabilizing agent. The sol was simply<br />
dropped onto Au surface <strong>of</strong> sensor with comb-like structure, then dried at 110 °C in<br />
the oven and finally annealed at 450 °C in the calcination furnace.<br />
The obtained Au nanorods as well as the modified Au surface with TiO 2 structures<br />
were characterized by SEM. TiO 2 phase constitution and control <strong>of</strong> material<br />
purity were analyzed by Raman and ATR-FTIR spectroscopy, respectively. The electrical<br />
properties (resistance) <strong>of</strong> whole system were measured by impedance spectroscopy<br />
(IS).<br />
Keywords: gas sensor, TiO 2 , nanostructures
Section – Photochemistry<br />
Posters<br />
5-P05 Image Analysis <strong>of</strong> Offset Lithography Prints<br />
Bohuslava Havlínová, Vladimír Dvonka, Ján Panák, Michal Čeppan<br />
Faculty <strong>of</strong> Chemical and Food Technology STU,<br />
Department <strong>of</strong> Graphic Arts Technology<br />
Radlinského 9, 812 37 Bratislava 1<br />
vladimir.dvonka@stuba.sk<br />
Reproduction <strong>of</strong> details on printing substrates is important from the point <strong>of</strong><br />
view <strong>of</strong> the fidelity <strong>of</strong> image reproduction. Good quality printed image consists <strong>of</strong><br />
screen dots <strong>of</strong> defined properties providing consistent pattern.<br />
In this contribution image analysis <strong>of</strong> screen dots were used to analyze two percent<br />
screen dot fidelity printed on different paper printing media by <strong>of</strong>fset lithography.<br />
The front and back sides <strong>of</strong> set <strong>of</strong> coated and uncoated printing papers was<br />
tested. Micro- and macrostructure <strong>of</strong> the printed image on the printing papers were<br />
studied by image analysis – fractal analysis method. Micro structural parameters <strong>of</strong><br />
screen dot size – area, perimeter, roundness, screen dot area and defects <strong>of</strong> screen<br />
dots – were evaluated. Missing screen dots, a macro structural image parameter,<br />
was evaluated too.<br />
The second part <strong>of</strong> image analysis based on print edge inspection. Print edge<br />
was analyzed by modulation transfer function and by fractal analysis.<br />
The set <strong>of</strong> printing papers was ranked from the point <strong>of</strong> view <strong>of</strong> quality described<br />
by the obtained micro and macro structural parameters. The quality <strong>of</strong> individual<br />
printing papers was correlated with physical properties <strong>of</strong> printing papers<br />
mutually one to another.<br />
Keywords: image analysis, fractal analysis, modulation transfer function, <strong>of</strong>fset<br />
lithography, paper<br />
. 1
Section – Photochemistry<br />
Posters<br />
5-P06 Color Fidelity <strong>of</strong> Reproduction<br />
<strong>of</strong> Historical Documents<br />
. 2<br />
Bohuslava Havlínová, Vladimír Dvonka, Michal Čeppan, Milena Reháková,<br />
Ján Panák<br />
Faculty <strong>of</strong> Chemical and Food Technology STU,<br />
Department <strong>of</strong> Graphic Arts Technology<br />
Radlinského 9, 812 37 Bratislava 1<br />
vladimir.dvonka@stuba.sk<br />
Preservation <strong>of</strong> cultural heritage is a very actual topic nowadays. Archiving <strong>of</strong><br />
historical documents itself is based on restoration and digitalization <strong>of</strong> historical<br />
documents. Restoration is a difficult process involving mechanical and chemical operation<br />
and never can be regarded as forever solution. Therefore, a reproduction <strong>of</strong><br />
historical documents, reliable from the point <strong>of</strong> view <strong>of</strong> carried information as well<br />
as appearance is in the centre <strong>of</strong> interest. Color fidelity is considered to be one <strong>of</strong> the<br />
most important aspects <strong>of</strong> reliable reproduction.<br />
This paper deals with color fidelity <strong>of</strong> reproduction process used for reproduction<br />
<strong>of</strong> historical documents. The quality <strong>of</strong> selected digital cameras and ink-jet<br />
printing papers was compared and evaluated from the point <strong>of</strong> view <strong>of</strong> provided<br />
color fidelity. CIE color differences were used as the key parameter. Based on the<br />
obtained results the system for reproduction <strong>of</strong> historical documents based on digital<br />
camera and ink-jet printer was designed and its operational performance was<br />
optimized.<br />
Keywords: color difference, color management, historical documents,<br />
color fidelity
Section – Photochemistry<br />
Posters<br />
5-P07 Improvement <strong>of</strong> Barrier Properties <strong>of</strong> Paper<br />
Using Photochemically Modified Polymer Layers<br />
Viera Jančovičová, Sabine Amberg-Schwab<br />
Department <strong>of</strong> Printing Arts Technology and Photochemistry IPM,<br />
Faculty <strong>of</strong> Chemical and Food Technology SUT,<br />
Radlinského 9, 812 37 Bratislava<br />
viera.jancovicova@stuba.sk<br />
The materials based on cellulose fibers (paper, card board) are sensitive to humidity<br />
and oxygen. The barrier properties <strong>of</strong> standard packaging materials are commonly<br />
achieved by lamination. An alternative to the lamination can be an introduction<br />
<strong>of</strong> the polymer coating on the paper surface. In this study, paper was coated by<br />
hybrid polymer with inorganic and organic structural units (ORMOCER ® ) and by<br />
polyvinylalcohol modified by glycidyl methacrylate (PVAGMA).<br />
The UV and sunlight curing process <strong>of</strong> ORMOCER ® and PVAGMA with various<br />
concentration <strong>of</strong> photoinitiator (Irgacure 2959 and Iragacure 184) were investigated<br />
and the compositions <strong>of</strong> both cured systems were optimised. Photopolymerization<br />
kinetic was evaluated on the basis <strong>of</strong> FTIR spectroscopy measurements.<br />
Two and three layer systems composed <strong>of</strong> paper, modified or unmodified polyvinylalcohol<br />
and ORMOCER ® were prepared and water vapor permeability, swelling<br />
and water sorption <strong>of</strong> these systems were studied. Deposited coatings (layers)<br />
significantly improved the barrier properties.<br />
Keywords: modified polyvinylalcohol, ORMOCER ® , barrier properties,<br />
photopolymerization)<br />
.
Section – Photochemistry<br />
Posters<br />
5-P08 Influence <strong>of</strong> Ageing on Optical Properties <strong>of</strong><br />
Arylmethane Dyes<br />
.<br />
Viera Jančovičová, Miroslava Petrovičová, Bohuslava Havlínová,<br />
Department <strong>of</strong> Printing Arts Technology and Photochemistry IPM, Faculty <strong>of</strong> Chemical and<br />
Food Technology SUT,<br />
Radlinského 9, 812 37 Bratislava<br />
viera.jancovicova@stuba.sk<br />
Arylmethane dyes represent one <strong>of</strong> the oldest man-made dyestuffs used until<br />
today. This work deals with the characterization <strong>of</strong> dyes in solution by UV-Vis spectroscopy<br />
and degradation processes <strong>of</strong> the system dye-paper substrate by accelerating<br />
ageing studied by the reflectance UV-Vis spectroscopy and colorimetry. Six<br />
arylmethane days, one phenothiazine and one xanthene dye were investigated and<br />
spectral and colorimetric characteristics <strong>of</strong> them during ageing are discussed.<br />
The colourfastness and colour changes <strong>of</strong> these dyes applied onto an acidic<br />
paper support after conservation treatment (fixing and deacidification) and after accelerated<br />
ageing were followed and evaluated. Sand<strong>of</strong>ix WE and cyclodecane were<br />
used as fixatives. Deacidification treatment was performed in water using magnesium<br />
and calcium bicarbonates. It is impossible to define one universal fixative,<br />
which would be appropriate for all kinds <strong>of</strong> the used dyes.<br />
Keywords: arylmethane dyes, UV-Vis spectroscopy, deacidification, fixation,<br />
optical properties
5-P09 Investigation <strong>of</strong> Decomposition <strong>of</strong><br />
Photoinitiators<br />
Bohumil Jašúrek, Tomáš Syrový, Jan Vališ, Tomáš Weidlich<br />
University <strong>of</strong> Pardubice, Faculty <strong>of</strong> Chemical Technology,<br />
Department <strong>of</strong> Graphic Arts and Photophysics<br />
Studentská 95, 532 10 Pardubice, Czech Republic<br />
bohumil.jasurek@upce.cz<br />
Section – Photochemistry<br />
Posters<br />
In this paper were investigated properties <strong>of</strong> four photoinitiators. Two <strong>of</strong> them<br />
are commercially available initiators (Irgacure 2959 and Irgacure 261) and the other<br />
two are new photoinitiators that were prepared (CB and HP1). CB is cationic organometallic<br />
photoinitiators and HP1 is hybrid photoinitiator with higher molecular<br />
weight containing chemical groups suitable for starting free radical and cationic<br />
polymerization simultaneously.<br />
The absorption properties and comparison <strong>of</strong> the rate <strong>of</strong> photodecomposition <strong>of</strong><br />
tested photoinitiators were measured based on UV-VIS spectrometry. The photochemical<br />
mechanism and the estimated number <strong>of</strong> decomposition products after UV photolysis<br />
<strong>of</strong> initiators were proposed based on the results <strong>of</strong> mass spectrometry and factor analysis<br />
<strong>of</strong> UV-VIS spectra. The results from mass spectrometry and factor analysis have shown<br />
very good correlation. CB and HP1 decompose upon UV light exposure and can be used<br />
as photoinitiators for cationic (CB and HP1) or free radical polymerization (HP1).<br />
Keywords: photoinitiator, UV-VIS spectroscopy, MS, Factor analysis<br />
.
Section – Photochemistry<br />
Posters<br />
5-P10 Comparison <strong>of</strong> the Photocatalytic Properties <strong>of</strong><br />
TiO 2 and Au/TiO 2 in the Degradation <strong>of</strong> C 2 H 2<br />
.<br />
E. Puzenat, C. Youssef, N. Jaffrezic-Renault, J.-M. Herrmann, C. Guillard a<br />
Institut de recherches sur la catalyse et l‘environnement de lyon (IRCELYON),<br />
2 Avenue Albert Einstein 69629 Villeurbanne cedex France; Université Lyon 1, France.<br />
eric.puzenat@ircelyon.univ-lyon1.fr<br />
Photocatalysis over semiconductor metal oxides has received much interest in<br />
recent decades since it finds a lot <strong>of</strong> applications for the elimination <strong>of</strong> organic pollutants.<br />
Even if, in all cases, the complete mineralization <strong>of</strong> the initial molecule is<br />
reached, the chemical pathway shows many chemical intermediates. Recently, it has<br />
been established that the photocatalytic oxidation <strong>of</strong> acetylene over TiO 2 leads to the<br />
formation <strong>of</strong> CO in the gas phase for which the photocatalytic oxidation is a rather<br />
slow reaction. On the other hand, Au/TiO 2 catalysts exhibit an activity for the oxidation<br />
<strong>of</strong> CO at room temperature even without participation <strong>of</strong> UV light.<br />
Based on these two considerations, the purpose <strong>of</strong> the present work is the comparison<br />
<strong>of</strong> the photocatalytic oxidation <strong>of</strong> C 2 H 2 over TiO 2 and Au/TiO 2 . The comparison<br />
<strong>of</strong> the results obtained with the two samples (Fig. 1) shows that the disappearance<br />
<strong>of</strong> C 2 H 2 is faster with TiO 2 than with Au/TiO 2 but is accompanied with the<br />
formation <strong>of</strong> CO only for TiO 2 photocatalyst. This observation suggests that CO is a<br />
by-product <strong>of</strong> the photocatalytic oxidation <strong>of</strong> C 2 H 2 over TiO 2 and that is not formed<br />
when gold particles are present.<br />
The influence <strong>of</strong> the initial concentration <strong>of</strong> C 2 H 2 on the photocatalytic degradation<br />
rate was studied. The Langmuir-Hinshelwood model was used to describe<br />
the kinetic mechanism <strong>of</strong> the oxidation. A lack in the carbon balance<br />
(C 2 H 2 + CO 2 + CO) during the photocatalytic degradation suggests that some<br />
organic by-products are formed. A hypothesis explaining the different behaviour<br />
<strong>of</strong> the two samples lays down on the different kinetic for the oxidation <strong>of</strong><br />
CO. In order to verify this, the photocatalytic oxidation <strong>of</strong> CO was study with<br />
the two samples. It clearly appears that the oxidation <strong>of</strong> CO is much faster over<br />
1 wt%Au/TiO 2 than over TiO 2 even without UV Irradiation. The Langmuir-Hinshelwood<br />
model was also used to describe the kinetic model.<br />
Finally, the photocatalytic oxidation <strong>of</strong> C 2 H 2 was studied using some mixtures<br />
(x 1wt%Au/TiO 2 //(1-x)TiO 2 ) with different x. The mixture showing the faster C 2 H 2<br />
oxidation without the formation <strong>of</strong> CO was 25%Au/TiO 2 //75%TiO 2 ..<br />
The extend <strong>of</strong> this <strong>abstract</strong> exceeded the allowed size and therefore had to be clipped.
Section – Photochemistry<br />
Posters<br />
5-P11 Study <strong>of</strong> Influence <strong>of</strong> Iron-gall Inks Composition<br />
on Properties <strong>of</strong> Historical Documents<br />
Milena Reháková, Michal Čeppan, Vladimír Dvonka<br />
Slovak University <strong>of</strong> Technology in Bratislava, Faculty <strong>of</strong> Chemical and Food Technology<br />
Radlinského 9, 812 37 Bratislava, Slovak Republic<br />
milema.rehakova@stuba.sk<br />
The aim <strong>of</strong> work was experimental study <strong>of</strong> changes <strong>of</strong> paper containing iron<br />
gall inks with different composition. Ratio iron to gallic acid varied from 0.25 to 4.<br />
The manner <strong>of</strong> application and amount <strong>of</strong> inks were optimized.<br />
Viscosimetric determination <strong>of</strong> the average degree <strong>of</strong> polymerization <strong>of</strong> cellulose<br />
and calculation <strong>of</strong> speed constant <strong>of</strong> degradation reaction, thermal analysis <strong>of</strong><br />
samples, colourimetric measurements, identification <strong>of</strong> inks by Falce Colour Infrared<br />
method and spectral analysis – in the range VIS – NIR were executed before and<br />
after the accelerated ageing.<br />
The iron gall inks with ratio iron:gallic acid greater than 0.67 effected on paper<br />
base very destructive. Abundance <strong>of</strong> iron in inks has negative effect.<br />
Keywords: iron gall inks, ageing<br />
.
Section – Photochemistry<br />
Posters<br />
5-P12 The Influence <strong>of</strong> Receiving Layer Composition on<br />
Inkjet Print Lightfastness<br />
.<br />
Jiří Stančík, Michal Veselý, Petr Dzik<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Purkyňova 118, Brno 61200<br />
xcstancik@fch.vutbr.cz<br />
Quality and properties <strong>of</strong> inkjet printouts are dependent on many factors: type<br />
<strong>of</strong> paper, composition <strong>of</strong> inks, properties <strong>of</strong> receiving layer, etc. In this paper attention<br />
was focused on the influence <strong>of</strong> receiving layer composition upon UV irradiation<br />
on lightfastness <strong>of</strong> inkjet printouts. The effects <strong>of</strong> inorganic pigment filler (TiO 2 )<br />
and light stabilizer addition in layers <strong>of</strong> PVAL were studied.<br />
Amount <strong>of</strong> added filler is responsible for changes in print quality and its type<br />
has influence on light stability <strong>of</strong> printout. Light stabilizer addition should improve<br />
the lightfastness <strong>of</strong> samples.<br />
Specimens were printed by dye-based and pigment-based inkjet inks. Changes<br />
in the lightfastness were evaluated by total colour difference measurement. Metalhalide<br />
lamp was used as the source <strong>of</strong> UV irradiation. Light stability data for measured<br />
specimens are discussed.<br />
Keywords: poly(vinylalcohol), titanium dioxide, light fastness, colour diference.
Section – Photochemistry<br />
Posters<br />
5-P13 Photopolymerization <strong>of</strong> Monomers with two<br />
Different Reactive Groups<br />
Josef Svoboda, Josef Knobloch<br />
University <strong>of</strong> Pardubice, Faculty <strong>of</strong> Chemical Technology, Department <strong>of</strong> Graphic Arts and<br />
Photophysics,<br />
Studentská 95, 532 10 Pardubice, Czech Republic<br />
josef.svoboda@upce.cz<br />
UV photopolymerization <strong>of</strong> three bifunctional monomers bearing epoxy and<br />
vinyl groups was studied. Monomers used were glycidyl methacrylate (GMA), glycidyl<br />
vinyl ether (GVE) and 3,4-epoxy-1-butene (butadiene monoxide, BMO). The<br />
homopoly-merization experiments were carried out at room temperature using 2isopropylthioxanthone<br />
(ITX) and/or (4-methylphenyl)[4-(2-methylpropyl) phenyl]<br />
iodonium hexafluorophosphate (IC250) as photoinitiators. Fourier transform infrared<br />
(FTIR) spectroscopy was used to follow the functional groups conversion during<br />
polymerizations. The transmission, the attenuated total reflectance (ATR) and<br />
the specular reflection techniques were applied.<br />
During the free radical (ITX) initiated photopolymerization the double bond<br />
shows higher reactivity within GMA than BMO, whereas the GVE conversion was<br />
negligible. Using the transmission technique, in the presence <strong>of</strong> IC250 the epoxy<br />
group conversion rate is much higher within GVE or BMO compared to GMA. With<br />
GMA photopolymerization monitored by the ATR technique both the reaction rate<br />
and the conversion maximum are considerably higher in comparison with the photopolymerization<br />
studied by the transmission or specular reflection techniques.<br />
Keywords: photopolymerization, bifunctional monomers, epoxy group,<br />
vinyl group, conversion rate, FTIR<br />
.
Section – Photochemistry<br />
Posters<br />
5-P14 A new Aproach to Inkjet Prints Lightfastness<br />
Evaluation<br />
. 0<br />
Michal Veselý, Petr Dzik, Jiří Stančík<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno<br />
vesely-m@fch.vutbr.cz<br />
At present, the quality <strong>of</strong> inkjet prints does not represent a technological limitation.<br />
But there is one problem still remaining: archival stability <strong>of</strong> these prints.<br />
Inkjet prints, especially photorealistic ones, are affected by environmental conditions<br />
during their storage or presentation. Absorption <strong>of</strong> visible and UV light can<br />
lead to dye excitation and reactive oxygen radicals formation usually followed by<br />
dye decomposition. This is observable as colour fading.<br />
This work deals with the study <strong>of</strong> lightfastness <strong>of</strong> selected photopapers designed<br />
for printing <strong>of</strong> photographs by inkjet technique. Four kinds <strong>of</strong> papers were<br />
used: glossy papers – Ilford Galery Smooth Gloss and Ilford Galery Clasic Gloss<br />
and matt papers – Epson Archival Matt and Foma 1224. The protective properties<br />
<strong>of</strong> laminating sheet on printed papers were studied. The lightfastness was studied<br />
by method <strong>of</strong> accelerated ageing in Q-Sun Xenon Test Chamber on target printouts.<br />
The colour differences <strong>of</strong> each colour field <strong>of</strong> target were measured by spectrophotometer.<br />
The colour differences ∆E ab * in course <strong>of</strong> accelerated ageing for all selected<br />
papers were evaluated. A new approach to lighfastness results evaluation is based<br />
on the use <strong>of</strong> a special printed target and on colour gamut volume calculation.<br />
Keywords: accelerated ageing, inkjet
Section 6:<br />
Physical and Applied Chemistry<br />
.1
Lectures<br />
.
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L01 Self-Aggregation <strong>of</strong> Humic and Fulvic Acids<br />
Studied on IHSS Standards<br />
Martin Drastík, Anna Čtvrtníčková, Jiří Kučerík<br />
Institute <strong>of</strong> Physical and Applied Chemistry, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno<br />
xcdrastik@fch.vutbr.cz<br />
Humic substances are ubiquitous and also the most occurring organic matter<br />
on the Earth. Due to their high heterogeneity and chemical character they tend to<br />
self-aggregate forming various molecular organisations. Despite an intensive research,<br />
the mechanisms and ways <strong>of</strong> aggregation are still not precisely known.<br />
The aim <strong>of</strong> presented work is to bring new insights into aggregation mechanisms<br />
<strong>of</strong> several humic substances standards obtained from the International Humic<br />
Substances Society. The behaviour <strong>of</strong> sodium salts <strong>of</strong> humic and fulvic acids was<br />
investigated employing the high resolution ultrasonic spectroscopy (HRUS) which<br />
has become a powerful tool in colloidal chemistry due to its sensitivity to monitor<br />
any conformational change in a solution under study. Observed changes can be<br />
used to estimate the character <strong>of</strong> processes in progress.<br />
Keywords: humic substances, aggregation, HRUS<br />
.
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L02 Robust Nonlinear Control <strong>of</strong> a Separation<br />
Column for 13 C Enrichment by Cryogenic<br />
Distillation <strong>of</strong> Carbon Monoxide<br />
.<br />
Eva-Henrietta Dulf, Clement Festila, Francisc Dulf<br />
Technical University <strong>of</strong> Cluj-Napoca, Faculty <strong>of</strong> Automation and Computer Science<br />
Romania, 400020 Cluj-Napoca, C. Daicoviciu Str., 15<br />
Eva.Dulf@aut.utcluj.ro<br />
In the present developing plan to apply the cryogenic technology for the production<br />
<strong>of</strong> the 13 C, an efficient and safe operation is a strong reason to conceive and<br />
to apply a modern computer based control strategy. The authors are concerned with<br />
the problem <strong>of</strong> developing effective and readily implemental techniques for modelling<br />
and control <strong>of</strong> the isotope separation plant. These columns are characterized by<br />
complex nonlinearities, with large time-delays. Furthermore, are subject to external<br />
disturbances, which are difficult to model. The controller synthesis problem for<br />
such processes is extremely challenging and has been an active area <strong>of</strong> research for<br />
the past two decades. In the present paper are studied two possible versions <strong>of</strong> robust<br />
nonlinear control <strong>of</strong> the separation column: the linearization approach and the<br />
synthesis <strong>of</strong> a robust nonlinear state feedback controller. The first approach is a mul-<br />
timodel controller design procedure, based on a mixed H 2 /H ∞ problem to achieve<br />
good quadratic performance and robustness. The control problem is defined so as<br />
to achieve optimal LQ (Linear Quadratic) performance subject to robust stability for<br />
the set <strong>of</strong> uncertain models. The second approach considers a single input-single<br />
output nonlinear differential difference equation system with uncertain variables.<br />
Keywords: isotope separation column, robust control
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L03 Molecular Characterisation <strong>of</strong> Lignite Humic<br />
Acids by Chemical Degradations<br />
Laurent Grasset, Dana Válková, André Amblès<br />
Synthèse et Réactivité des Substances Naturelles, UMR CNRS 6514<br />
Université de Poitiers, 40 avenue du Recteur Pineau, 86022 Poitiers, France<br />
laurent.grasset@univ-poitiers.fr<br />
The objective <strong>of</strong> this work was to specify structural molecular units <strong>of</strong> humic<br />
acids extracted from South Moravian lignite. The primary structure <strong>of</strong> humic acids<br />
has been studied using chemical degradations such as thermochemolysis, RuO 4 and<br />
H 2 O 2 oxidations.<br />
TMAH and TEAAc thermochemolysis are able to discriminate between total<br />
(bond and/or trapped), trapped and directly extractable hydrophobic compounds.<br />
These compounds were mostly fatty acids and were in a “free” form.<br />
Chemical oxidations resulted in an extensive degradation/solubilisation <strong>of</strong> the<br />
humic acids and the hydrophilic compounds largely dominated the oxidation digest<br />
in the case <strong>of</strong> both RuO 4 and H 2 O 2 . Relatively low amount <strong>of</strong> benzene(poly)carboxylic<br />
acids indicated only a limited content <strong>of</strong> fused aromatic moieties. The identification<br />
<strong>of</strong> traces <strong>of</strong> saccharides confirmed the low maturity <strong>of</strong> the studied sample. The<br />
major compounds present in the oxidation digests are short chain (poly)carboxylic<br />
acids. They are usually considered to be the result <strong>of</strong> the oxidation <strong>of</strong> carbohydrates.<br />
They could be also the result <strong>of</strong> the oxidation <strong>of</strong> the short aliphatic chains between<br />
aromatic and/or oxygenated moieties in ligneous network.<br />
Chemical degradations are able to give informations on the molecular structure<br />
<strong>of</strong> such complex natural organic matter. On the other hand, humic acids extracted<br />
from South Moravian lignite are able to release, when oxidized, high amount <strong>of</strong><br />
hydrophilic short chain (poly)carboxylic acids.<br />
.
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L04 Prediction <strong>of</strong> the Acetic and Formic Acid<br />
Formation in the Paper During the Accelerated<br />
Ageing by the Change <strong>of</strong> Optical Properties<br />
.<br />
M. Jablonský, K. Hroboňová, J. Lehotay, S. Katuščák<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper,<br />
Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology in Bratislava, Radlinskeho 9,<br />
SK-812 37 Bratislava, Slovak Republic.<br />
michal.jablonsky@stuba.sk<br />
Natural ageing <strong>of</strong> all cellulose-based papers including alkaline papers is attended<br />
by spontaneous production <strong>of</strong> organic acids. In principle, simple acid hydrolysis<br />
does not affect colour, but low-molecular-weight products are more prone to oxidation<br />
and colour formation than cellulose chains. The change <strong>of</strong> optical properties is<br />
results <strong>of</strong> paper degradation. The paper properties are interdependent. Carboxylic<br />
acids presented in the paper intensify force <strong>of</strong> degradation and thus increase its rate.<br />
The obtained results show that during accelerated ageing at the temperature 98 °C,<br />
acetic and formic acid are being produced in unmodified papers. The multiple linear<br />
regression model was used to describe the relationship between concentration <strong>of</strong><br />
acetic acid (C(AA)) and independent variables such as time <strong>of</strong> accelerated ageing (t)<br />
and Kubelka-Munk coefficient (k/s). The equation <strong>of</strong> the fitted model is<br />
C(AA) = 1.0985 + 0.2119.t –3.6854.k/s. The r 2 parameter indicates that the model<br />
as fitted explains 96.70% <strong>of</strong> the variability in acetic acid content. For concentration <strong>of</strong><br />
formic acid, the equation <strong>of</strong> the fitted model is C(FA) = 0.299+ 0.0209.b*. The r 2 parameter<br />
indicates that the model as fitted explains 34.40 % <strong>of</strong> the variability in formic<br />
acid content. Low-molecular product such as acetic acid, have coherence with the<br />
colour information which is consequence <strong>of</strong> the accelerated ageing.<br />
Keywords: optical properties, acetic acid, accelerated ageing
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L05 Effect <strong>of</strong> Modification <strong>of</strong> Paper with<br />
Antioxidant <strong>of</strong> Piperidine Serie on<br />
Recognisability <strong>of</strong> Black Characters on Paper<br />
Jana Kazíková, Attila Szitás, Katarína Vizárová, Michal Jablonský,<br />
František Považanec, Soňa Kirschnerová, Svetozár Katuščák<br />
Institute <strong>of</strong> Polymer Materials, Department <strong>of</strong> Chem. Technology <strong>of</strong> Wood,Pulp and Paper,<br />
Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, 812 37, Bratislava, Slovak Republic<br />
E-mail: jana.kazikova@stuba.sk<br />
Colour <strong>of</strong> paper is changed both by ageing and conservation processes and this<br />
causes the letters and other optical characters visibility and recognisability changes<br />
on the paper (R S ). It is generally believed that R S <strong>of</strong> a optical characters in document<br />
depends on the contrast between text character and a background (∆E C-B ). The aim<br />
is to estimate effect <strong>of</strong> paper ageing and modification on the R S . Paper samples<br />
were modified by the 0,5 % hexamethyldisiloxane solution <strong>of</strong> piperidine antioxidant<br />
DAO3 , and aged in hermetically sealed glass tubes at 98 o C. The kinetics <strong>of</strong><br />
paper optical properties were measured and the R S was calculated by equation R S =<br />
k 1 .(k 2 . (∆E C-B ) 2 – k 3 . ∆E C-B + k 4 ). The relative decrease <strong>of</strong> the colour direfence between<br />
a model character and the real paper background caused by the accelerated ageing<br />
after 360 hours was ∆(∆E* C-B ) = -8,3%, the equivalent R* S = -1,1% for the nonmodified<br />
paper, while for the antioxidant modified paper the ∆(∆E* C-B ) = -11,8% and the R* S<br />
= -2,4%. The impact <strong>of</strong> ageing on the ∆(∆E* C-B ) <strong>of</strong> on dark paper with the lightness<br />
L* = 45 or the dark parts <strong>of</strong> documents, from ∆E C-B = 15, is much more meaningful,<br />
with the R* S = -16,7%. The decrease <strong>of</strong> the optical characters recognisability R* S is<br />
insignificant on the white papers while much more significant on the dark papers or<br />
the dark parts <strong>of</strong> document. The piperidine derivative antioxidant DAO3 used have<br />
negative effect on the recognisability decrease.<br />
Keywords: visibility, recognisability, optical characters, letters, antioxidant,<br />
paper, documents, ageing<br />
.
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L06 Role <strong>of</strong> Aromaticity in Humic Substances<br />
Degradation Kinetics Using<br />
Non-Arrhenius Temperature Functions<br />
.10<br />
Jiří Kislinger, František Novák, Jiří Kučerík<br />
Institute <strong>of</strong> Physical and Applied Chemistry, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno<br />
xckislinger@fch.vutbr.cz<br />
Actual worldwide environmental problems as climate changes imply reduction<br />
<strong>of</strong> greenhouse gases. Such process demands fundamental understanding <strong>of</strong><br />
carbon (C) stabilization in soils. The mechanisms for C stabilization are still not well<br />
understood and thus the ultimate potential for C stabilization in soils is unknown.<br />
The main fraction <strong>of</strong> organic matter contained in soils and other natural materials<br />
consists <strong>of</strong> humic substances, which comprise a complex mixture <strong>of</strong> both aromatic<br />
and aliphatic moieties, having a large number <strong>of</strong> functional groups.<br />
To describe the kinetics <strong>of</strong> processes in condensed phase, the methods based<br />
on the single-step approximation are <strong>of</strong>ten used. For our purposes isoconversional<br />
methods are highly suitable. The temperature function in general rate equation<br />
needn’t necessarily be the known Arrhenius one and thus two other functions were<br />
used.<br />
The aim <strong>of</strong> the work lies in elucidation <strong>of</strong> role <strong>of</strong> aromatic carbon content during<br />
the humic substances thermo-oxidative degradation. The results could help in<br />
assessments <strong>of</strong> soil organic matter erosion or in development <strong>of</strong> remediation and<br />
soil restoration techniques.<br />
Keywords: humic substances, kinetics, isoconversional methods
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L07 NMR Spectroscopy <strong>of</strong> Minor Compounds<br />
in Wine – a Comparison <strong>of</strong> Different<br />
Pre-Concentration methods<br />
M. Mazur, K. Furdíková, M. Kaliňák, M. Valko, V. Žúbor, N. Prónayová<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology,<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic;<br />
e-mail: milan.mazur@stuba.sk<br />
Wine is a complex mixture consisting <strong>of</strong> several hundreds substances present<br />
at different concentrations. The dominant ones are water (86 %), ethanol (12 %), glycerol<br />
(1 %), sugars, organic acids, and various ions. The other aliphatic and aromatic<br />
alcohols, amino acids and phenol compounds are present at much lower concentrations<br />
(
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L08 Hydrophobization <strong>of</strong> Paper by Vapours in N 2<br />
Plasma at Atmospheric Pressure<br />
.12<br />
Milan Mikula, Alexandra Valaseková,<br />
Zuzana Jakubíková, Viera Jančovičová<br />
FCHPT STU, 812 37 Bratislava<br />
milan.mikula@stuba,sk<br />
Standard volume dielectric barrier discharge (DBD) and down stream (after<br />
DBD) discharge at atmospheric pressure were applied for continuous treatment <strong>of</strong><br />
paper, using nitrogen as working gas with several reactive organic or organosilicon<br />
vapors (including hexamethyldisiloxane – HMDSO and n-heptane).<br />
Modified hydrophobized papers were characterized by wettability, surface energy,<br />
water imbibition (soaking), sorption and penetration properties and kinetics<br />
and by absorption FTIR spectroscopy (surface sensitive ATR techniques).<br />
The level <strong>of</strong> hydr<strong>of</strong>obization <strong>of</strong> paper in different vapours will be discussed<br />
depending on conditions and on the manner <strong>of</strong> applying the vapours, paper directly<br />
in the standard DBD plasma <strong>of</strong> gas/vapour mixture or in down stream after glow<br />
DBD.<br />
Keywords: hydrophobization, paper, plasma
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L09 Fluorescence Study <strong>of</strong> Polysaccharide in Dilute<br />
Aqueous Solution<br />
Filip Mravec, Tereza Halasová,<br />
Miloslav Pekař, Vladimír Velebný<br />
CPN Ltd & IPAC FCH BUT<br />
Dolní Dobrouč 401, 561 02 Dolní Dobrouč, CZ & Purkyňova 118, 612 00 Brno, CZ<br />
mravec@fch.vutbr.cz<br />
Aggregation properties <strong>of</strong> sodium hyaluronate (HA) in different molecular<br />
weights were studied by fluorescence methods. Interactions with hydrophobic fluorescence<br />
probes showed sodium hyaluronate, or its hydrophobically-modified analogues,<br />
as suitable systems for drug delivery applications. Properties <strong>of</strong> hydrophobic<br />
core were studied with polarity and viscosity fluorescence probes.<br />
Interaction with hydrophilic probes, e.g. acridine orange or “styryl-class”<br />
probes, can help to understand hyaluronate’s self-aggregation behavior in aqueous<br />
environment. Depolymerization <strong>of</strong> dye-aggregates, evidenced by fluorescence intensity,<br />
showed an abrupt change in physiological concentration region (~ 1 g L -1 ).<br />
Keywords: fluorescence probe, hyaluronic acid<br />
.1
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L10 Spin-Trapping Investigation <strong>of</strong> Radical<br />
Intermediates Generated from Phenols.<br />
Specific Behaviour <strong>of</strong> Para-Methyl Phenols<br />
.1<br />
Ladislav Omelka, Petr Majzlík,<br />
Renata Superatová, Petra Holubcová<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 464/118, 612 00 Brno, Czech Republic<br />
omelka@fch.vutbr.cz<br />
Phenoxyl radicals, generated from the series <strong>of</strong> substituted phenols and bisphenols<br />
were indirectly detected using nitroso spin traps. The active site for the<br />
addition <strong>of</strong> phenoxyl to nitroso group strongly depends on the substitution. In the<br />
case <strong>of</strong> unhindered phenols the addition proceeds in the ortho position <strong>of</strong> the corresponding<br />
phenoxyl, sterically hindered phenoxyls are added mostly through their<br />
para position. In para methyl substituted phenols the tendency towards the <strong>abstract</strong>ion<br />
<strong>of</strong> hydrogen from para methyl substituent leading to the formation <strong>of</strong> benzyl<br />
radicals was observed. Their adducts with nitroso spin traps undergo the consecutive<br />
transformation to the nitrones.<br />
Keywords: EPR spectroscopy, phenoxyl radicals, spin trapping
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L11 Vortex-Fractal-Ring Structure <strong>of</strong> Molecule<br />
Pavel Ošmera<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Mechanical Engineering<br />
Technicka 2, 616 69 Brno, Czech Republic<br />
osmera@fme.vutbr.cz<br />
This paper is an attempt to attain a new and pr<strong>of</strong>ound model <strong>of</strong> the nature’s<br />
structure using vortex, fractal and ring structures. Scientists try to explain some<br />
phenomena in Nature that have not been explained so far. The aim <strong>of</strong> this paper is<br />
the vortex-fractal modeling <strong>of</strong> vortex-ring fractal structure <strong>of</strong> atoms, molecules, and<br />
a creation <strong>of</strong> elements in the Mendeleev’s periodic table with vortex-ring particles<br />
which is not in contradiction to the known laws <strong>of</strong> nature.<br />
Fractals seem to be very powerful in describing natural objects on all scales.<br />
Fractal dimensions and fractal measures are crucial parameters for such description.<br />
Many natural objects have self-similarity or partial-self-similarity <strong>of</strong> the whole<br />
object and its part.<br />
Our science creates terrific demands on the imagination. To understand the<br />
electromagnetic field requires a high degree <strong>of</strong> imagination. The degree <strong>of</strong> imagination<br />
that is required is much more extreme than that required for some <strong>of</strong> the<br />
ancient ideas. The modern ideas are much harder to imagine. We usually use mathematical<br />
equations and rules, but we used a lot <strong>of</strong> pictures to describe very complex<br />
vortex-fractal models. There is not easy to formulate mathematical models. We can’t<br />
allow ourselves to seriously imagine things, which are obviously in contradiction<br />
to the known laws <strong>of</strong> nature. We created vortex-fractal-ring model <strong>of</strong> the electron,<br />
<strong>of</strong> the proton and hydrogen and then calculated sizes, forces, energies and covalent<br />
bonds.<br />
Keywords: vortex-fractal structures, covalent bond<br />
.1
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L012 Hydration <strong>of</strong> Hyaluronan<br />
.1<br />
Alena Průšová, Petra Bursáková, Jiří Kučerík<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Department <strong>of</strong> Applied and Physical Chemistry<br />
Purkyňova 118, Brno 602 00<br />
xcprusova@fch.vutbr.cz<br />
Hydration is one <strong>of</strong> the most important factors playing the key role in biological<br />
function <strong>of</strong> molecules in living systems. Water represents an important medium<br />
for nutrient transport, cell membrane processes, induces biologically active conformation<br />
<strong>of</strong> biomolecules etc. Due to unique properties and extremely high affinity <strong>of</strong> water<br />
molecules to each other it forms various structures (clusters) having different physicalchemical<br />
properties.<br />
Hyaluronan is naturally occurring high molecular weight biopolymer consisting <strong>of</strong><br />
glucuronic acid and N-acetyl-glucosamine. One <strong>of</strong> the most important functions <strong>of</strong> the<br />
hyaluronan is hydration (the hydration <strong>of</strong> epidermis or the hydration <strong>of</strong> ocular cornea).<br />
Hyaluronan binds water very strongly but there are some physical differences between<br />
the structures <strong>of</strong> binding water.<br />
The aim <strong>of</strong> this work was to study hydration properties <strong>of</strong> hyaluronan. The enumeration<br />
<strong>of</strong> water molecules is crucial in order to understand how biomolecular processes<br />
work. The ability <strong>of</strong> various hydration shells to freeze and melt in broad temperature<br />
range was used to determine these different types <strong>of</strong> water using the DSC<br />
method. There were recognized three types <strong>of</strong> water ‘bulk water’ which freezes at the<br />
same temperature as normal water, ‘freezing-bound’ water which freezes at a lower<br />
temperature than normal water and it also exhibits a reduced enthalpy <strong>of</strong> fusion and the<br />
‘non-freezing’ water which does not freeze even at low temperature.<br />
Keywords: hyaluronan, hydration, DSC
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L13 Electrochemical Analysis <strong>of</strong> New Indole-Based<br />
Antioxidants<br />
P. Rapta, M. Zalibera, V. Šnirc, S. Štolc<br />
Institute <strong>of</strong> Physical Chemistry and Chemical Physics, Faculty <strong>of</strong> Chemical and Food Technology,<br />
Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
peter.rapta@stuba.sk<br />
The redox properties <strong>of</strong> stobadine (Stobadin.2HCl) and new series <strong>of</strong> pyrido-indole<br />
derivatives (SMe1EC2.HCl, SMe1M3EC2.HCl, SM1M3EC2.HCl, SMe1–iProC2.<br />
HCl, SMe1–iBuoC2.HCl and SMe1–nBuoC2.HCl) were investigated by cyclic<br />
voltammetry both in non-aqueous (DMSO) and aqueous solutions. Electrochemical<br />
and EPR/spin trapping investigations <strong>of</strong> new synthesised pyridoindoles were<br />
performed in order to explain in more detail the redox processes <strong>of</strong> investigated<br />
compounds in relation to their antioxidant and radical scavenging activity. Antioxidant<br />
capacity was determined by three independent methods for evaluation <strong>of</strong><br />
antioxidant activity including ABTS and DPPH tests as well as EPR spin trapping<br />
assay. Cyclic voltammetric and EPR studies indicate different oxidation products<br />
depending on the pyridoindole substitution and on the solvent used.<br />
Keywords: cyclic voltammetry, stobadine derivatives, EPR spectroscopy,<br />
follow-up reactions, oxidation<br />
.1
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L14 New Colloidal Systems made <strong>of</strong> Humic Acids<br />
.1<br />
Petr Sedláček, Martina Klučáková, Miroslava Malenovská<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno<br />
sedlacek-p@fch.vutbr.cz<br />
Humic acids represent complex natural material, which shows many valuable<br />
physical and chemical properties. Because <strong>of</strong> high sorption ability it contributes to<br />
the native self- detoxification <strong>of</strong> soil and sediments and also provides the promising<br />
substrate for an artificial production <strong>of</strong> soil remediation agents, industrial sorbents<br />
etc. Humic acids are gained from their rich alternative natural sources – peat,<br />
young coal etc. – by simple and cheap methods <strong>of</strong> extraction and purification in a<br />
form <strong>of</strong> fine powder soluble in alkalines. Hence, numerous papers focus on a study<br />
<strong>of</strong> humic acids powder or humate solutions. Nevertheless, none <strong>of</strong> these forms is<br />
suitable for the direct application in agriculture or industry. Submitted contribution<br />
introduces several laboratory procedures developed for the preparation <strong>of</strong> new humic<br />
acids -based colloids (hydrogels, flakes and beads) with the discussion <strong>of</strong> their<br />
applicability.<br />
Keywords: Humic acids, hydrogels
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L15 Photochemical and Free Radicals Study <strong>of</strong><br />
Cyanobacteria using EPR Spectroscopy<br />
Stopka P., Maršálek B., Křížová J.<br />
Institute <strong>of</strong> Inorganic chemistry v.v.i., Czech Academy <strong>of</strong> Science,<br />
25068 Husinec-Řež<br />
stopka@i ic.cas.cz<br />
Our previous experiments measured by electron paramagnetic resonance spectroscopy<br />
(EPR, ESR) proved, that actively growing cyanobacteria produce characteristic<br />
spectrum <strong>of</strong> stable radicals, which may play an important role in aquatic<br />
ecosystems. Our preliminary experiments analysed by EPR also proved, that barley<br />
and wheat straw produce quite different spectrum <strong>of</strong> free radicals, Application <strong>of</strong><br />
barley straw was published many times, but the principle remains unknown. At<br />
least on <strong>of</strong> he principle could be based on the trapping and quenching the cyanobacterial<br />
stable radicals by specific radicals produced by especially prepared natural<br />
materials. This „neutralisation“ <strong>of</strong> radicals could be safe for aquatic ecosystems.<br />
We plane to select different natural plant materials with potential algistatic activity<br />
Our aim is to prepare from these materials potential algistatic fractions after specific<br />
initialisation processes (fermentation, rotting etc.) and to define their ability <strong>of</strong> free<br />
radicals production. Principal question <strong>of</strong> this project <strong>of</strong> basic research is to prove,<br />
if above mentioned mechanism is really responsible for the selective interaction <strong>of</strong><br />
cyanobacteria with barley straw. Second aim <strong>of</strong> the project is to compare spectrum<br />
<strong>of</strong> free radicals produced by barley straw and compare them with another natural<br />
materials, which can be nominated as more selective and even more practical tool<br />
for cyanobacterial blooms control than the barley straw is.<br />
Eutrophication <strong>of</strong> aquatic ecosystems and the consequent mass occurrence<br />
<strong>of</strong> harmful cyanobacterial blooms are growing problems in the entire world. Cyanobacterial<br />
blooms deteriorate water quality by toxins and odours production.<br />
Cyanobacterial toxins (microcystins, anatoxins, lipopolysacharide etc.) are known<br />
to have hepatotoxic, neurotoxic, imunotoxic, genotoxic and other adverse effects.<br />
Cyanotoxins in drinking water, fish consumption and recreational use <strong>of</strong> reservoirs<br />
represents a growing risk for human health. Besides this, cyanobacterial bloom<br />
means considerable stress for ecological stability <strong>of</strong> aquatic ecosystems, natural fish<br />
and amphibian reproduction, biodiversity <strong>of</strong> phytoplankton and zooplankton community<br />
etc. Not only toxin production is harmful, but also decrease <strong>of</strong> light intensity,<br />
pH change and excessive oxygen depletion. Therefore measures ...<br />
The extend <strong>of</strong> this <strong>abstract</strong> exceeded the allowed size and therefore had to be clipped.<br />
.1
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L16 Molecular Electronic: Advances and Limitations,<br />
Strategies, Materials, Methods and Applications<br />
.20<br />
Martin Vala, Martin Weiter, Oldřich Zmeškal, Ota Salyk<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno, Czech Republic<br />
vala@fch.vutbr.cz<br />
Over the past several decades there have been dramatic advances toward the<br />
realization <strong>of</strong> electronic components from organic materials instead <strong>of</strong> the inorganic<br />
semiconductors. The initial simple replacement <strong>of</strong> the traditional materials to costeffective,<br />
but usually less performing, organic counterparts was superseded to nature-inspired<br />
materials and recently to completely new specially designed ones.<br />
However, the true advancement is achieved by utilizing <strong>of</strong> the original properties<br />
<strong>of</strong> the organic materials to construct new devices based on those individual<br />
features which do not have analogies in the inorganic semi-conducting physics. This<br />
is usually accomplished with the help <strong>of</strong> quantum chemical calculations which can<br />
predict the desired properties <strong>of</strong> the new materials prior to the synthesis.<br />
The aim <strong>of</strong> this lecture is to introduce some <strong>of</strong> the strategies employed at our<br />
department and to show the development achieved. The attention will be also paid<br />
to designed novel materials particularly suitable for optoelectronics as exemplified<br />
by displays, photovoltaics and optical memories.<br />
Keywords: molecular electronics, organic electronics
Section – Physical & Applied Chemistry<br />
Lectures<br />
6-L17 Mutual Relation between Fractal and Statistical<br />
(Random, Thermodynamic) Phenomena in Nature<br />
Oldřich Zmeškal, Martin Weiter,<br />
Martin Vala, Tomáš Bžatek<br />
Brno University <strong>of</strong> Technology<br />
Faculty <strong>of</strong> Chemistry, Purkynova 118, 612 00 Brno<br />
zmeskal@fch.vutbr.cz<br />
This paper deals with the unification <strong>of</strong> views <strong>of</strong> different physical and chemical<br />
fields <strong>of</strong> knowledge on natural phenomena. We put into context physical quantities<br />
defined in fractal physics, thermodynamics and statistical physics with general<br />
mathematical description by momentum <strong>of</strong> random quantities.<br />
The mathematical tools <strong>of</strong> fractal physics enable a universal description <strong>of</strong> such<br />
phenomena as e.g. thermal radiation, conduction and convection <strong>of</strong> heat, properties<br />
<strong>of</strong> ideal and real liquids and/or gases, thermodynamic entropy <strong>of</strong> closed and open<br />
system, classic and quantum distribution functions.<br />
This unification in not only <strong>of</strong> a theoretic importance, but enabled the implementation<br />
<strong>of</strong> further modules into the application HarFA (developed by authors <strong>of</strong><br />
this paper). The program HarFA was intended for fractal analysis <strong>of</strong> digital images,<br />
video clips, signals and numerical data sets. The new modules enabled the calculation<br />
<strong>of</strong> five fractal dimensions (topological, information – thermodynamic, correlative,<br />
skewness and kurtosis) which relate to corresponding moments and entropies.<br />
Thus a unification <strong>of</strong> phenomena description by different sciences is achieved.<br />
Keywords: fractal physics, entropy, statistical physics, thermodynamics<br />
.21
.22
Posters<br />
.2
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P01 Influence <strong>of</strong> Regenerated Humic Acids on<br />
Polyvinyl Alcohol Thermo-Oxidational Stability<br />
Barbora Bakajová, Zoja Vlčková, Jiří Kučerík<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 464/118, 612 00 Brno<br />
xcbakajova@fch.vutbr.cz<br />
Using <strong>of</strong> natural antioxidants is necessary for the future sustainable way <strong>of</strong><br />
life since the availability <strong>of</strong> oil is slowly decreasing. The technological potential<br />
<strong>of</strong> lignite as a chemical raw material has been up to now overlooked although it<br />
represents an interesting and unique natural product rich in humic acids content.<br />
Humic acids consist <strong>of</strong> a mixture <strong>of</strong> different organic molecules which major pool<br />
represents unsaturated fatty acids and polyphenols. As it has been demonstrated<br />
recently, added to a polymer, humic acids can be used for adjusting <strong>of</strong> its stability<br />
due to their pr<strong>of</strong>ound antioxidant effect. Oxidation <strong>of</strong> parental lignite leads to formation<br />
<strong>of</strong> so-called regenerated humic acids which <strong>of</strong>fer a wide range <strong>of</strong> properties<br />
reflected usually by the content <strong>of</strong> functional groups and/or by variable aromaticity.<br />
Thus, application <strong>of</strong> regenerated humic acids as additives in polymers can be a way<br />
to develop a green polymer with predictable stability and (bio)degradability. Such<br />
aspect can be crucial in selection <strong>of</strong> materials useful in agricultural as well as in environmental<br />
applications where the quick and easy degradability <strong>of</strong> a polymer after<br />
its expiration time is <strong>of</strong>ten requested.<br />
In this work we have focused on the oxidation stability evaluation <strong>of</strong> polyvinyl<br />
alcohol/regenerated humic acids blends using thermogravimetry. To assess the efficiency<br />
<strong>of</strong> antioxidant or pro-oxidant influence the isoconversional methods were<br />
used.<br />
Keywords: humic acids, polymer stability, thermal analysis<br />
.2
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P02 Determination <strong>of</strong> Particle Shape and Size<br />
Distribution<br />
.2<br />
Edita Bretšnajdrová, Ladislav Svoboda, Jiří Zelenka<br />
University <strong>of</strong> Pardubice, Faculty <strong>of</strong> Chemical Technology<br />
nam. Cs. Legii 565, 532 10 Pardubice, Czech Republic<br />
edita.bretsnajdrova@student.upce.cz<br />
At present great attention is given to study <strong>of</strong> preparation and properties <strong>of</strong><br />
various nanomaterials usable in many applications. They are utilized in varied fields<br />
<strong>of</strong> human activity – e.g. in electronics, medicine, paint industry etc. Except detailed<br />
chemical structure, such nanoparticle properties as shape and size distribution are<br />
fundamental to the given application. To measure these parameters various methods<br />
are used, e.g. transmission electron microscopy (TEM), atomic force microscopy<br />
(AFM), acoustic spectrometry and methods based on the light scattering.<br />
All above-mentioned methods were used in this work to characterize particles<br />
<strong>of</strong> two selected model types <strong>of</strong> nanomaterials – colloidal silica and sodium montmorillonite.<br />
Silica represents a material with spherical particles, tabular shapes are<br />
typical for montmorillonite materials.<br />
Experiments proved that methods used to measure particle size distribution<br />
and based on the light scattering require very diluted dispersions to meet the needs<br />
<strong>of</strong> them. But, on the other hand, these conditions can affect the particle size distribution<br />
due to agglomeration or deagglomeration <strong>of</strong> them. For these reasons methods<br />
working with concentrated suspensions, without dilution, are more suitable to<br />
get correct results for such colloidal systems, for example acoustic spectrometry. To<br />
obtain information on the shape <strong>of</strong> particles studied TEM and AFM methods were<br />
used.<br />
Merits and limitations <strong>of</strong> the individual methods used to evaluation <strong>of</strong> nanoparticles<br />
<strong>of</strong> various types are discussed in the work.<br />
Keywords: particle size distribution, acoustic spectrometry, silica,<br />
montmorillonite, nanomaterials.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P03 Hydration <strong>of</strong> Regenerated Humic Substances<br />
Considering their Biological Properties<br />
Petra Bursáková, Zoja Vlčková, Zdeněk Cihlář, Jiří Kučerík<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Institute <strong>of</strong> Applied and Physical Chemistry<br />
Purkyňova 118, Brno 602 00<br />
xcbursakova@fch.vutbr.cz<br />
Humic substances (HS) have a pr<strong>of</strong>ound effect in many processes including<br />
cell biology <strong>of</strong> living organisms. As they are both hydrophobic and hydrophilic in<br />
nature, their function is closely related to the properties <strong>of</strong> water shell intimately<br />
bound on humic molecules and consequently on humic aggregates. A strong affinity<br />
<strong>of</strong> water molecules to stick to each other via H-bonds and formation <strong>of</strong> specific clusters<br />
is a driving force assembling humic molecules into complicated organizations.<br />
The differences in properties <strong>of</strong> water surrounding HS can be recognized using<br />
DSC. Phase transition behaviour <strong>of</strong> sorbed water in HS-water systems was investigated<br />
as a function <strong>of</strong> water content. Three types <strong>of</strong> water can be distinguished: free<br />
water whose melting temperature and enthalpy are not significantly different from<br />
those <strong>of</strong> normal (bulk) water, those water species exhibiting large differences in<br />
transition enthalpies and temperatures (freezing-bound water), or those for which<br />
no phase transition can be observed calorimetrically, known as non-freezing water.<br />
The aim <strong>of</strong> this work is to find a connection between hydration ratio <strong>of</strong> regenerated<br />
HS from various sources considering their biological activity which can bring new<br />
information regarding function <strong>of</strong> HS in biological processes.<br />
Keywords: humic substances, hydration, DSC<br />
.2
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P04 Evaluation <strong>of</strong> Sorption Abilities <strong>of</strong> Natural<br />
Lignite for Organic Substances<br />
.2<br />
Petra Bušinová, Miloslav Pekař<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
e-mail: businova@fch.vutbr.cz<br />
South Moravian lignite has interesting chemical composition which allows its<br />
use in various non-fuel applications, especially in sorption processes. Submitted paper<br />
reports on lignite sorption abilities for basic textile dyes and petroleum products<br />
(gasoline, diesel fuel, oils), presents sorption capacities, isotherms and kinetics. Results<br />
show that lignite can be used as a sorbent for tested substances. Possibilities <strong>of</strong><br />
practical application <strong>of</strong> natural lignite for organics sorption are discussed.<br />
Keywords: lignit, organic substances, sorption
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P05 Maximum Bubble Pressure and the du noüy<br />
Platinum Ring Method <strong>of</strong> Surface Tension<br />
Measurements <strong>of</strong> Sodium Dodecyl Sulfate and<br />
Sodium Hyaluronate<br />
Martin Chytil, Jitka Krouská, P. Kulilová, Miloslav Pekař<br />
Institute <strong>of</strong> Physical and Applied Chemistry, Fakulty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00, Brno, Czech Republic<br />
The comparison <strong>of</strong> two methods for measuring surface tension (γ), maximum<br />
bubble pressure (MBP) and Du Noüy platinum ring method (DNR), are presented<br />
and demonstrated on measurements <strong>of</strong> sodium dodecyl sulfate (SDS) and sodium<br />
hyaluronate (NaHA) in water and 0.15 M NaCl at room temperature. From the DNR<br />
method, the plot <strong>of</strong> γ against measuring time t meas is obtained for each measurement,<br />
whereas from the MBP method, the dependence <strong>of</strong> γ on the time life <strong>of</strong> the air bubble<br />
(t life ) is gained. The surface tension <strong>of</strong> a measured solution is defined as the equilibrium<br />
surface tension, γ eq , i.e. γ at infinite time, t ∞ .<br />
Clear differences between the two methods can be seen; the γ values obtained<br />
from DNR method are basically lower than those from the MBP method, particularly<br />
for SDS solutions. The differences result in a bit higher critical micelle concentration<br />
(CMC), and a steeper drop <strong>of</strong> γ before the CMC for the MBP method. The<br />
differences most likely arise from the fact that adsorption at the curved air/solution<br />
interface <strong>of</strong> the bubble is measured using MBP method instead <strong>of</strong> adsorption at the<br />
flat air/solution interface for the DNR method, which points out another balance<br />
<strong>of</strong> adsorption/desorption at the curved interface is established in the system and a<br />
different affinity and dynamics <strong>of</strong> the surfactant molecules to the curved interface.<br />
The differences were not so significant for NaHA solutions due to rather low surface<br />
activity <strong>of</strong> NaHA and mostly no systematic trend in the progress <strong>of</strong> γ with NaHA<br />
concentration was observed. However, there are small differences between higherand<br />
-lower-molar mass HA ((H)LMHA), showing slightly stronger surface activity<br />
<strong>of</strong> LMHA.<br />
.2
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P06 Surface Tension <strong>of</strong> Regenerated Humic Acids<br />
Salts<br />
. 0<br />
Anna Čtvrtníčková, Jiří Kučerík<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 464/118, 612 00 Brno<br />
annactvrtnickova@seznam.cz<br />
Humic acids represent a versatile heterogeneous mixture <strong>of</strong> organic substances<br />
developed as decay intermediates <strong>of</strong> mostly photosynthesis products and which<br />
chemistry completely differs from that <strong>of</strong> chemically pure (homogeneous) substances.<br />
That is also a case <strong>of</strong> surface tension measurement. While pure substances exhibit<br />
a relatively simple record, i.e. equilibration is reached maximally within minutes,<br />
humic substances components tend to adsorb on the water surface within hours and<br />
consequently affect the surface tension <strong>of</strong> the solution. It is a consequence <strong>of</strong> both<br />
kinetics and thermodynamics contribution. In the former, also the contribution <strong>of</strong><br />
diffusion processes should be taken into account.<br />
Processes included in changes <strong>of</strong> surface tension <strong>of</strong> humic material are worth<br />
to study from several points <strong>of</strong> view; i) they reflect the mechanism aggregation <strong>of</strong><br />
humic molecules in the solution, ii) indicate the affinity <strong>of</strong> mutual interactions (repulsions/attractions)<br />
<strong>of</strong> humic molecules which has the influence on the biological<br />
activity and last but not least iii) deep knowledge can be technologically exploitable.<br />
In this study, surface tension measurements was carried out on a set <strong>of</strong> modified<br />
humic acids with the purpose to elucidate the mechanisms <strong>of</strong> processes occurring<br />
both on the surface and in the solution and to find technologically appropriate<br />
composition <strong>of</strong> humic acids useful for washing technology <strong>of</strong> highly polluted soils<br />
(i.e. remediation).<br />
Keywords: humic acids, surface tension, remediation
6-P07 Immobilization <strong>of</strong> Lignite into<br />
PVAl Sponges<br />
Petr Dzik, Václav Mach, Michal Veselý<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
petr@dzik.cz<br />
Section – Physical & Applied Chemistry<br />
Posters<br />
Lignite is from geological point <strong>of</strong> view the youngest form <strong>of</strong> fossil fuels. Therefore<br />
its energy content is rather low. However, much attention has been paid to<br />
non-energetic applications <strong>of</strong> lignite recently. Apart from other interesting way <strong>of</strong><br />
utilization, lignite proved to be an efficient sorbent for a number <strong>of</strong> pollutants.<br />
Although loose finely groung lignite can be used on its own, it might be beneficial<br />
for a number <strong>of</strong> industrial application to use some immobilised form <strong>of</strong> lignite,<br />
for example for water purification. Therefore some process for lignite immobilization<br />
has to be found.<br />
Our work was dedicated to the immobilization <strong>of</strong> lignite into highly porous<br />
hydrophilic sponges made <strong>of</strong> acetalized PVAl. These sponges were prepared by acidic<br />
formalization <strong>of</strong> aqueous solution <strong>of</strong> PVAl. Pores were formed by gaseous H2,<br />
which originated from the reaction <strong>of</strong> powder aluminum with acid. Resulting sponges<br />
were <strong>of</strong> open-cell structure, were highly hydrophilic and had variable porosities<br />
depending on the amount <strong>of</strong> blowing agent (aluminum).<br />
A set <strong>of</strong> sponge samples with varying lignite content was prepared and the properties<br />
<strong>of</strong> resulting sponges were studied (free pore volume, swelling characteristics).<br />
We also studied the sorption capacity <strong>of</strong> lignite-containing sponges on model<br />
pollutants (Cu(II) ions and methylene blue).<br />
Keywords: lignite, immobilization, sponge, sorption<br />
. 1
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P08 FTIR and SFS Spectra <strong>of</strong> Humic Acids Isolated<br />
from Lignite and Chernozem<br />
. 2<br />
Naděžda Fasurová and Ľubica Pospíšilová<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry,<br />
Institute <strong>of</strong> Physical and Applied Chemistry,<br />
Purkyňova 118, 612 00 Brno,<br />
fasurova@fch.vutbr.cz<br />
In this paper comparison <strong>of</strong> chemical structure and optical properties <strong>of</strong> humic<br />
acids (HA) isolated from various sources is presented. Excellent sorption properties<br />
<strong>of</strong> HA are well known to depend on their chemical structure and composition. Therefore<br />
HA isolated from different matrices (soil, lignite) were studied using FTIR and<br />
SFS spectral methods. FTIR spectra contributed to authentic knowing <strong>of</strong> functional<br />
groups in HA molecule. The inherent fluorescence <strong>of</strong> HA is an extremely sensitive<br />
measure, which allows for non-destructive analyses <strong>of</strong> samples. Object <strong>of</strong> our study<br />
were HA isolated from lignite (locality Mikulčice) and Modal Chernozem (locality<br />
Bratčice). Isolation was made according to the international standard IHSS method<br />
and according to Czech standard on determination <strong>of</strong> content <strong>of</strong> humic substances<br />
in coal. FTIR spectra were measured using KBr technique with Nicolet Impact 400<br />
spectrometer. SFS spectra were measured by Spectr<strong>of</strong>luorimeter Aminco Bowman<br />
within the range 320 - 620 nm (at Δλ=20 nm).<br />
Keywords: FTIR spectra, SFS spectra, lignite HA, Chernozem HA
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P09 Enhancement <strong>of</strong> Northern S<strong>of</strong>twood Bleached<br />
Kraft Pulp Accessibility and Acid Hydrolysis by<br />
Means <strong>of</strong> Ultrasonic Treatment<br />
Michal Jablonský, Štefan Šutý, B. Švehla<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper, Slovak University <strong>of</strong> Technology<br />
in Bratislava, Radlinskeho 9, SK-812 37 Bratislava, Slovak Republic michal.jablonsky@<br />
stuba.sk<br />
Northern s<strong>of</strong>twood bleached kraft pulp were treated with ultrasonic in order<br />
to improve the accessibility and hydrolysis <strong>of</strong> cellulose. The influence <strong>of</strong> ultrasonic<br />
treatment on morphology structure changes and on accessibility were discussed.<br />
Results revealed an increase in cellulose’s accessibility in terms <strong>of</strong> water retention<br />
value (WRV) with increasing ultrasound treatment time with the different frequency<br />
25, 40 and 80 kHz <strong>of</strong> sonification treatment. Furthermore, the acid hydrolysis <strong>of</strong><br />
cellulose has been also successfully improved by the ultrasound treatment. However,<br />
no significant changes in crystallinity <strong>of</strong> cellulose were noted after ultrasonic<br />
treatment which was characterized by means <strong>of</strong> FTIR.<br />
Keywords: FTIR, WRV, ultrasonic, crystallinity<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P10 Modelling <strong>of</strong> Complexation <strong>of</strong> Heavy Metals And<br />
Humic Acids with Utilization <strong>of</strong> High Resolution<br />
Ultrasound Spectroscopy<br />
.<br />
Martina Klučáková, Jiří Kučerík<br />
Miloslav Pekař<br />
Institute <strong>of</strong> Physical and Applied Chemistry, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
klucakova@fch.vutbr.cz<br />
Several model compounds (citric acid, hydroquinone, pyrocatechol, salicylic<br />
acid and EDTA), containing functional groups and structure similar to binding sites<br />
in structure <strong>of</strong> humic acids, were chosen for this contribution. Our previous results<br />
confirmed that these model substances can be very useful in study <strong>of</strong> complexation<br />
<strong>of</strong> humic acids with metal ions. High Resolution Ultrasound Spectroscopy (HRUS)<br />
is method gaining ground more and more in research <strong>of</strong> bio-colloids. Interactions <strong>of</strong><br />
cupric ions with these models are studied by HRUS and obtained results are compared<br />
and discussed with previous ones measured by means <strong>of</strong> different methods.<br />
Keywords: ultrasound scpectroscopy, complexation
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P11 Kinetics <strong>of</strong> Sorption <strong>of</strong> Metal Ions on Lignitic<br />
Humic Acids<br />
Martina Klučáková<br />
Institute <strong>of</strong> Physical and Applied Chemistry, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
klucakova@fch.vutbr.cz<br />
Affinity <strong>of</strong> humic acids (HA) to heavy metals is well known. Many authors use<br />
copper as model metal for study <strong>of</strong> interaction with HA due to its high complexation<br />
ability and affinity to HA. My previous works showed that classical Langmuir isotherm,<br />
which is frequently used for mathematical description <strong>of</strong> equilibrium sorption<br />
<strong>of</strong> metal ions on HA and determination <strong>of</strong> sorption capacity, is connected with<br />
some inaccuracies, because it does not take into account the production <strong>of</strong> hydrogen<br />
ions during reactions <strong>of</strong> metal ions with acidic functional groups on the surface <strong>of</strong><br />
humic particles. In view <strong>of</strong> the fact, that Langmuir isotherm is based on kinetics <strong>of</strong><br />
sorption process, I develop new model for equilibrium sorption <strong>of</strong> metal ions on<br />
HA including splitting <strong>of</strong> hydrogen ions in chemical sorption on acidic groups. The<br />
model was proved experimentally for sorption <strong>of</strong> cupric ions. This work deals with<br />
kinetics <strong>of</strong> sorption <strong>of</strong> cobalt and nickel ions on HA to prove above mentioned new<br />
model for metal ions with lower affinity to HA.<br />
Keywords: humic acids, sorption<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P12 Acid-base Properties <strong>of</strong> Fractionated Humic<br />
Acids<br />
.<br />
Martina Klučáková, Ondřej Pilný<br />
Institute <strong>of</strong> Physical and Applied Chemistry, Faculty <strong>of</strong> Chemistry,<br />
Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
klucakova@fch.vutbr.cz<br />
Humic acids (HA) were fractionated by their dissolution in universal buffers<br />
(NaOH, H 3 BO 3 , H 3 PO 4 and CH 3 COOH) with various pH-values. Obtained fractions<br />
were characterized by UV/VIS and FT-IR spectroscopy and their acid-base properties<br />
were studied. It was found that contain <strong>of</strong> acidic groups in majority <strong>of</strong> individual<br />
fractions is higher than the content <strong>of</strong> original HA samples. Our hypothesis is<br />
that HA structure is changed during fractionation. HA can interact with individual<br />
components <strong>of</strong> buffer and re-arranged their structure, which results in apparently<br />
higher acidity <strong>of</strong> obtained fractions. The re-arrangement <strong>of</strong> HA structure probably<br />
causes, that some acidic groups inside HA aggregates, which are not able dissociate<br />
in original HA sample, can contribute to measured acidity in individual fractions.<br />
Surprising result is that residue after dissolving original HA in very alkaline buffer<br />
(pH = 12) has after fractionation (and “exhaustion” <strong>of</strong> the largest amount <strong>of</strong> HA<br />
fraction) several times higher solubility in water as others. On the other hand, this<br />
fact corresponds with our hypothesis <strong>of</strong> re-arrangement and possible interactions<br />
with buffer, because the most “aggressive” buffer caused the most marked changes<br />
in HA properties.<br />
Keywords: humic acids, fractionation, acid base
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P13 HF and DFT Calculations <strong>of</strong> the Infrared<br />
and Raman Spectra <strong>of</strong> Lanthanide Complexes<br />
Cp* 2 LnCl 2 Li(OEt 2 ) 2 , where Ln = Sm, Nd<br />
Ondřej Kroutil, Soňa Hermanová, Lukáš Richtera, Josef Jančář<br />
Brno University <strong>of</strong> Technology, Institute <strong>of</strong> Materials Science<br />
Purkyňova 118, 612 00, Brno, Czech Republic<br />
kroutil@fch.vutbr.cz<br />
The IR and Raman spectra <strong>of</strong> the lanthanide complexes <strong>of</strong> the general formula<br />
Cp* 2 LnCl 2 Li(OEt 2 ) 2 (where Ln = Sm, Nd) have been computed at HF and DFT<br />
(B3LYP) level using 6-31G(d) basis set for H, C, O and Li atoms, and large-core<br />
quasirelativistic Stuttgart/Dresden effective core potentials with appropriate basis<br />
sets for Ln and Cl. Theoretically predicted spectra have been confronted with experimentally<br />
observed ones and experimental IR and Raman bands were assigned<br />
to normal modes on the basis <strong>of</strong> HF and DFT calculations. All the predictions were<br />
done using Gaussian and GAMESS s<strong>of</strong>tware packages.<br />
Keywords: neodymocene, ab-initio<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P14 Comparison <strong>of</strong> Various Plasmachemical Processes<br />
with Respect to the Gas Temperature<br />
.<br />
L. Lazar, P. Synek, M. Karásková, M. Eliáš, O. Jašek, L. Kelar, V. Buršíková,<br />
P. Konupčík, L. Zajíčková<br />
Department <strong>of</strong> Physical Electronics, Faculty <strong>of</strong> Science, Masaryk University<br />
Kotlářská 2, 61137 Brno, Czech Republic<br />
lucasl@physics.muni.cz<br />
In this work optical emission spectroscopy (OES) is used for the determination<br />
<strong>of</strong> molecules rotational temperature in miscellaneous types <strong>of</strong> plasmachemical<br />
processes. This temperature approximates the temperature <strong>of</strong> neutral gas due<br />
to frequent collisions <strong>of</strong> the gas particles. A program for simulation and fitting <strong>of</strong><br />
optical emission spectra <strong>of</strong> diatomic molecules was developed to obtain rotational<br />
temperature from the structure <strong>of</strong> rotational lines <strong>of</strong> given vibrational band.<br />
The spectra were measured in the microwave plasma torch at atmospheric<br />
pressure used for synthesis <strong>of</strong> carbon nanotubes with the catalyst either on the substrate<br />
or in the gas phase. The process is the high temperature deposition with correspondingly<br />
high rotational temperature <strong>of</strong> thousands <strong>of</strong> degrees. Another high<br />
temperature process, which was studied by OES, was the deposition <strong>of</strong> ultrananocrystalline<br />
diamond films in microwave bell jar (ASTeX type) reactor at the pressure<br />
<strong>of</strong> 7.5 kPa. In contrary, the deposition <strong>of</strong> amorphous diamond like carbon (DLC)<br />
films was carried out in the low pressure rf plasma in which the rotational temperature<br />
was close the 300 K.<br />
Keywords: optical emission spectroscopy, rotational temperature, plasma<br />
enhanced chemical vapor deposition
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P15 EPR Study <strong>of</strong> Nitroxide Radicals Generated<br />
from Some Secondary Alkyl-Aryl and Aryl-Aryl<br />
Amines<br />
Petr Majzlík, Ladislav Omelka, Jan Světlík, Peter Rapta<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 464/118, 612 00 Brno, Czech Republic<br />
majzlik@fch.vutbr.cz<br />
The series <strong>of</strong> secondary alkyl-aryl and aryl-aryl amines was subjected to the<br />
reaction with 3-chlorperbenzoic acid in different solvents. In the case <strong>of</strong> amines having<br />
two –NH– groups in the molecule two types <strong>of</strong> nitroxide radicals were registered,<br />
in dependence either on the structure <strong>of</strong> amine or the nature <strong>of</strong> solvent. The<br />
EPR spectra <strong>of</strong> generated radicals were interpreted using simulation method. The<br />
EPR parameters <strong>of</strong> generated radicals were determined.<br />
Keywords: amines, 3-chlorperbenzoic acid, EPR, nitroxide radicals<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P16 Roughness <strong>of</strong> Coated Papers Treated in<br />
Atmospheric Plasma<br />
. 0<br />
Milan Mikula, Zuzana Pobudová, Adam Gilan<br />
FCHPT STU, 812 37 Bratislava<br />
milan.mikula@stuba.sk<br />
Coated papers were treated in standard dielectric barrier discharge (DBD) in<br />
air, nitrogen and added organic vapour mixture at atmospheric pressure.<br />
Modified papers were characterized by atomic force microscopy (AFM – topography<br />
and RMS roughness), water adsorption-desorption kinetics, contact angle<br />
measurements and absorption FTIR spectroscopy (ATR techniques).<br />
Roughness and other surface changes will be discussed in correlation with the<br />
applied treatment <strong>of</strong> the paper.<br />
Keywords: roughness, coated paper, plasma
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P17 Influence <strong>of</strong> Dye Structure on Its Decomposition<br />
by Electric Discharge in Water Solution<br />
Jana Pajurková, Zdenka Stará, František Krčma<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
xcpajurkova@fch.vutbr.cz<br />
During last ten years, electrical discharges generated in water have been widely<br />
studied with a great focus on the application in water treatment. Following these<br />
worldwide trends, our experimental aparatus has been constructed for the investigation<br />
<strong>of</strong> electrical discharge effects on water solutions containing organic compounds,<br />
especially dyes.<br />
Experimental device consists <strong>of</strong> a batch discharge reactor, where the diaphragm<br />
discharge is created in a small pin-hole in the dielectric diaphragm dividing two<br />
electrode spaces, and <strong>of</strong> the high voltage source providing constant DC voltage up<br />
to 2 kV. Due to the application <strong>of</strong> DC voltage into the system, two kinds <strong>of</strong> plasma<br />
streamers are formed on each side <strong>of</strong> the diaphragm. These streamers differ especially<br />
in their energy dissipation and thus they substantially influence further chemical<br />
reactions, for example decomposition <strong>of</strong> the dye molecule.<br />
This paper presents results from the degradation <strong>of</strong> various organic dyes in<br />
the diaphragm discharge and compares obtained results from the viewpoint <strong>of</strong> dye<br />
chemical structure, electrode space and contens <strong>of</strong> electrolyte. First attempts show<br />
a significant dependence <strong>of</strong> decoloration efficiency on electrolyte kind as well as on<br />
the electrode polarity. Influence <strong>of</strong> dye structure is discussed, too.<br />
Keywords: electrical discharge in water, dye decomposition<br />
. 1
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P18 Influence <strong>of</strong> Mmmk Neutralization on Stability<br />
<strong>of</strong> Models <strong>of</strong> Historical Documents<br />
. 2<br />
M. Petrovičová, B. Havlínová, H. Paulusová<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
miroslava.petrovicova@stuba.sk<br />
Archives, libraries, museums and galleries all over the world keep large numbers<br />
<strong>of</strong> manuscripts and drawings created by iron gall inks which suffered a continuous<br />
process <strong>of</strong> decay. The chemical nature <strong>of</strong> ink is very important from the<br />
conservation point <strong>of</strong> view and without its understanding it is not possible to solve<br />
the problems <strong>of</strong> paper support degradation.<br />
In the world several deacidification methods are used. These methods can be<br />
classified into water-based and non-aqueous processes. These processes make use <strong>of</strong><br />
different combination <strong>of</strong> solvents, and they are suitable for different types <strong>of</strong> paper.<br />
This present study deals with application <strong>of</strong> neutralization reagent MMMK<br />
(Methoxy magnesium methyl carbonate), on documents containing iron-gall inks<br />
and its influence on document properties after stabilization.<br />
Keywords: deacidification, MMMK
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P19 Influence <strong>of</strong> CSC <strong>Book</strong>saver Deacidification<br />
Process on Stability <strong>of</strong> Arylmetane Dyes on Paper<br />
M. Petrovičová, M. Ďurovič, E. Belányiová, B. Havlínová<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
miroslava.petrovicova@stuba.sk<br />
Arylmethane dyes belong to the ones <strong>of</strong> the earlier synthetic dyes. At first the Fuchsine<br />
and Methyl Violet were prepared at the end <strong>of</strong> nineteenth century. Discovery <strong>of</strong> the reaction<br />
<strong>of</strong> phosgene with dimethyl aniline by Michler in 1867 was the breakthrough. Based on this<br />
reaction Caro and Kern prepared Crystal Violet in 1883. In 1877 the preparation <strong>of</strong> Malachite<br />
Green was published. Malachite Green is used in industrial scale up to the present time.<br />
Other arylmethane dyes based on hyroxytriphenylmethane and xanthene compounds were<br />
prepared letter. Latter, trihenylmethane dyes were by sulphonation <strong>of</strong> basic dyes.<br />
Low cost, color brilliance and substantiality, stability in solutions excelent writing<br />
properties was the reason <strong>of</strong> quick spread over the world. Low light fastness and chemical<br />
stability were considered as second-class factor. Today, these drawbacks come forth and lot<br />
<strong>of</strong> documents with inks based on these dyes requires immediate preservation action.<br />
The aim <strong>of</strong> this paper is study <strong>of</strong> influence <strong>of</strong> relative humidity and pH <strong>of</strong> paper support<br />
on complex properties <strong>of</strong> arylmethane inks. As a deacidification agent in our experiments,<br />
CSC <strong>Book</strong>saver utilized in mass deacidification <strong>of</strong> acidic historical documents was used.<br />
Keywords: <strong>Book</strong>saver, Arylmetane dyes<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P20 Effect <strong>of</strong> Accelerated Ageing on Properties <strong>of</strong><br />
Parchment<br />
.<br />
M. Petrovičová, B. Marušicová, M. Ohlidalová, B. Havlínová,<br />
Faculty <strong>of</strong> Chemical and Food Technology, Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, SK-812 37 Bratislava, Slovak Republic<br />
marusicova@orangemail.sk<br />
Parchment is a specially treated form <strong>of</strong> leather that is s<strong>of</strong>t and durable, making it an<br />
excellent writing material. High quality parchment is sometimes referred to as vellum. It is<br />
known that parchment was used as a writing material as early as the Ptolemaic era, and it was<br />
in fact preferred over papyrus in northern regions, where the climate can be unfavorable for<br />
papyrus, and also in Near Eastern regions.<br />
The aim <strong>of</strong> this task is regard <strong>of</strong> influence <strong>of</strong> accelerate ageing on parchment properties<br />
and comparison three different kinds <strong>of</strong> accelerate ageing together.<br />
Keywords: Parchment, accelerated ageing
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P21 Quality <strong>of</strong> Soil Humic Substances by SFS and UV-<br />
VIS Spectroscopy<br />
Ľubica Pospíšilová, Naděžda Fasurová<br />
Mendel University <strong>of</strong> Agriculture and Forestry,<br />
Institute <strong>of</strong> Agrochemistry, Soil Science, Microbiology and Plant Nutrition,<br />
Zemědělská 1, 613 00 Brno, Czech Republic<br />
lpos@mendelu.cz<br />
In this paper we followed UV-VIS, SFS spectra and fractionation <strong>of</strong> different origin<br />
soil humic subctances (HS). We selected HS from following soil types – Modal<br />
Cambisol, Litic Cambisol, Modal Chernozem, Modal Rendzina and Modal Pararendzina<br />
(Czech soil samples).<br />
HS fractionation is contributed to the determination <strong>of</strong> humic acids<br />
(HA) and fulvic acids (FA) content. Ratio HA/FA is one <strong>of</strong> the important<br />
criteria for evaluation <strong>of</strong> soil quality and health. Results indicated<br />
that HA/FA ratio was decreasing together with HS quality as follows:<br />
Modal Chernozem < Modal Rendzina < Modal Pararendzina < Modal Cambisol<br />
< Litic Cambisol. Linear correlation between optical indexes (Q 4/6 ) and fractional<br />
composition <strong>of</strong> HS was found. Optical curves and indexes are able to indicate chemical<br />
properties and structure <strong>of</strong> HS. Highest absorbance in UV-VIS and SFS ranges<br />
was in Modal Chernozem. SFS spectra showed five main fluorophore peaks at: 359,<br />
450, 469, 489, 501 nm. All samples had similar fluorescence behaviour as Elliot soil<br />
humic acid standard (IHSS). Fluorescence <strong>of</strong> studied samples was compared with<br />
literature data and/or with standard. Samples contained substitued naphtalene and<br />
coumarine derivates.<br />
We came to the conclusion that samples origin was an important factor influencing<br />
HS content and quality.<br />
Keywords: HS fractionation, UV-VIS spectra, SFS spectra<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P22 Sensoric Properties <strong>of</strong> Aromatic and<br />
Heterocyclic Compounds with Conjugated Bonds<br />
.<br />
Ota Salyk, Pavel Bednář, Oldřich Zmeškal, Jan Vyňuchal<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno<br />
salyk@fch.vutbr,cz<br />
Compounds <strong>of</strong> the group <strong>of</strong> diketo-pyrrolo-pyrroles, perylenes and other semiconducting<br />
molecular organics with affinity to various gases, namely hydrogen, were<br />
synthesized and characterized. Their ability to serve as a sensing element material<br />
in gas sensors was evaluated. 3,6-di-pyridin-4-yl-2,5-dihydro-pyrrolo[3,4-c]pyrrole-<br />
1,4-dione (DPPP) was tested as a reference, than its derivative compounds and other<br />
relative compounds with potentially sensing group in molecules were considered.<br />
The molecular and crystallographic conformation in thin films prepared both from<br />
solution and vacuum deposition was focused. Proton absorption influence on absorption<br />
spectra variation and changes in conductivity in gap electrode arrangement<br />
were tested. The spatial position <strong>of</strong> active group in crystal, possibility <strong>of</strong> gas<br />
transport and capture at active position as well as easy gas release was considered<br />
and examined. Fabrication <strong>of</strong> the sensor and electrode material for achieving <strong>of</strong> high<br />
sensitivity and selectivity, rapid response and recovery <strong>of</strong> such sensing element is<br />
also considered.<br />
Keywords: sensor,organic semiconductor.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P23 Structure <strong>of</strong> 1,4-diketo-3,6-bis-(4´-dipyridyl)pyrrolo-[3,4-c]pyrrole<br />
and Relative Compounds<br />
Ota Salyk, Vítězslav Frank, Jakub Stejkora, Jan Vyňuchal<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno<br />
salyk@fch.vutbr,cz<br />
Nitrogen atom in the pyridyl ring reveals strong proton affinity and the rest<br />
<strong>of</strong> the molecule poses an electron transport. Convenient crystallographic structure<br />
creates a carrier transport path through the crystal. These circumstances can affect<br />
conductivity <strong>of</strong> the material via proton concentration and can serve as proton sensitive<br />
substance for proton sensors and by addition <strong>of</strong> catalytic hydrogen dissociation<br />
centres we can obtain hydrogen sensor.<br />
3,6-di-pyridin-4-yl-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione (DPPP) and 3phenyl-6-pyridin-4-yl-2,5-dihydro-pyrrolo[3,4-c]pyrrole-1,4-dione<br />
were prepared<br />
both in thin film and monocrystals and their crystallographic structure was investigated<br />
by x-ray difractometry. Program ORTEP was used for the construction <strong>of</strong> the<br />
crystallographic model. It was compared with the structure <strong>of</strong> 3,6-diphenylpyrrolo(3,4-c)pyrrole-1,4-dione)<br />
(DPP) as the reference for various derivatives.<br />
Keywords: hydrogen sensor, x-ray difractometry,<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P24 The Influence <strong>of</strong> Mechanical Activation on the<br />
Production <strong>of</strong> the Humic Acids in the Brown<br />
Coal<br />
.<br />
M. Skybova, M. Lovas<br />
Institute <strong>of</strong> Geotechnics, Slovak Academy <strong>of</strong> Sciences<br />
Watsonova 45, 043 53 Kosice, Slovakia<br />
skybova@saske.sk<br />
One <strong>of</strong> the perspective trends <strong>of</strong> non fuel usage <strong>of</strong> coals is the production <strong>of</strong><br />
humic preparations on its base, which are to be used in different branches <strong>of</strong> industry<br />
and agriculture.<br />
Activating grinding <strong>of</strong> brown coal in the equipments <strong>of</strong> intensive grinding raises<br />
significant surface structural changes <strong>of</strong> ultra-fine active powders that depend<br />
on the grinding intensity, i.e. grinding time and revolutions <strong>of</strong> a grinder.<br />
The paper deals with activation effect for preparation and transformation <strong>of</strong><br />
humic acids structure in brown coal. The effect <strong>of</strong> activation grinding for yield,<br />
structure and granulometry <strong>of</strong> humic products was compared. It has been proved<br />
that with an optimum grinding time <strong>of</strong> 20 minutes and revolution amplitude <strong>of</strong> 400,<br />
there can be achieved a double increase <strong>of</strong> humic acids contents. In the process <strong>of</strong><br />
activated coal grinding there occur insignificant SA changes due to the increased<br />
humic acids contents.<br />
The effect <strong>of</strong> mechanically activated humic acids was compared with products<br />
<strong>of</strong> mechanocemical leaching by methods GACL. The granulometrics analysis were<br />
carried out using apparatus Sympatec Helos, Rodos, Germany, in wet conditions.<br />
The structure <strong>of</strong> mechanically activated coal <strong>of</strong> isolated humic acids was performed<br />
by NMR and FTIR methods.<br />
Keywords: humic acids, coal
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P25 Numeric Modelling <strong>of</strong> V-T Process in Nitrogen<br />
Ground State under Post-Discharge Conditions<br />
Ivo Soural, František Krčma, Vasco Guerra<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, CZ-61200 Brno, Czech Republic<br />
xcsoural@fch.vutbr.cz<br />
The post-discharge kinetics is a very complex problem where many different<br />
processes, that are vibrationally specific, must be included. The radiation <strong>of</strong> nonradiative<br />
relaxation processes leads directly to the establishing <strong>of</strong> thermodynamic<br />
quilibrium. A special interest deals with the processes <strong>of</strong> metastables. In presented<br />
numeric model <strong>of</strong> nitrogen plasma, the vibration distribution function (VDF) was<br />
studied in time. About 90 % <strong>of</strong> total energy in plasma was dissipated into vibration<br />
levels and changed to the electron excitation, ionization, dissociation and another<br />
processes. Thus more processes such as v-t, v-v, etc. were necessary to know for the<br />
calculation <strong>of</strong> VDF in time. First step was the computer simulation <strong>of</strong> v-t process<br />
for the collision <strong>of</strong> N 2 molecule with N 2 (X, v). Subsequently, probabilities <strong>of</strong> the v-t<br />
transfer were calculated from the SSH theory at particular discharge conditions.<br />
Finally, the VDF model in time was calculated from the obtained transfer probabilities<br />
and initial concentrations in active discharge, however for the v-t process, only.<br />
Population vibration levels in VDF were changing to the Boltzman distribution.<br />
Keywords: numeric model <strong>of</strong> nitrogen plasma, vibration distribution function<br />
(VDF)<br />
.
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P26 Evaluation <strong>of</strong> Intake Cappability <strong>of</strong> LCM<br />
Surface by Adsorption Dyeding Method and its<br />
Utilization for Evaluation <strong>of</strong> Changes in Surface<br />
Polarity Caused by DCSBD Low-Energy Plasma.<br />
. 0<br />
Radovan Tiňo, Lívia Beňová,Svetozár Katuščák<br />
Institute <strong>of</strong> Polymer Materials, Department <strong>of</strong> Chem. Technology <strong>of</strong> Wood,Pulp and Paper,<br />
Slovak University <strong>of</strong> Technology in Bratislava<br />
Radlinského 9, 812 37, Bratislava, Slovak Republic<br />
radovan.tino@stuba.sk<br />
Polarity transformation causes the change <strong>of</strong> water repellent and absorption<br />
properties <strong>of</strong> dyestuffs which can be used in quality control <strong>of</strong> wood surface hydrophobisation.<br />
Optical testing methods performing in the visible part <strong>of</strong> the spectra<br />
are non-destructive and have antropomorphous character.<br />
Polarity <strong>of</strong> lignocellulosic materials (LCM) is usualy evaluated by spectral<br />
methods as well as by measurement <strong>of</strong> water droplet contact angle and measurement<br />
<strong>of</strong> surface energy <strong>of</strong> solid surfaces. These methods are time and cost consuming<br />
whereupon new fast method for evaluation <strong>of</strong> changes in surface polarity <strong>of</strong><br />
LCM by measurement <strong>of</strong> three chromatic components <strong>of</strong> modified and unmodified<br />
surface, after dyeding with choosen standard dye, in systeme CIE Lab has been developed<br />
and verified. The data <strong>of</strong> the 3 orthogonal and 2 cylindrical color parameters<br />
were measured and color diferences between control and DCSBD plasma modified<br />
wood surfaces were measured. Results show that change <strong>of</strong> wood surface polarity<br />
in most cases leads to change in ability to absorb color substances. By this method it<br />
is possible to achieve information about hydr<strong>of</strong>ility and/or hydrophobicity <strong>of</strong> LCM<br />
surface. Correlation between classical methods <strong>of</strong> polarity evaluation and with the<br />
new method has been found. Coeffitien <strong>of</strong> correlation is R 2 = 0,8291.<br />
Keywords: DCSBD plasma, polarity, lignocellulosic, nondestructive evaluation
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P27 Evaluation <strong>of</strong> Effiency, Release and Oxidation<br />
Stability <strong>of</strong> Seabuckthorn Microencapsulated<br />
Oil using Fourier Transformed Infrared<br />
Spectroscopy<br />
Monica Trif and Carmen Socaciu<br />
Department <strong>of</strong> Chemistry and Biochemistry,<br />
University <strong>of</strong> Agricultural Sciences and Veterinary Medicine,<br />
Cluj-Napoca, 400372, Romania,<br />
monica_trif@hotmail.com<br />
This work examines microencapsulation effiency, the release and oxidation<br />
process <strong>of</strong> seabuckthorn oil encapsulated in ionotropically cross-linked alginatecarrageenan<br />
complex beads.<br />
The high content <strong>of</strong> polyunsaturated fatty acids, carotenoids and other oxygen<br />
sensitive lipid nutrients make this oil susceptible to oxidation, which limits its<br />
applications.<br />
The encapsulation efficiency <strong>of</strong> seabuckthorn oil was studied by UV-Vis spectroscopy<br />
and correlated with microscopical examination <strong>of</strong> emulsion stability. Seabuckthorn<br />
oil encapsulation in alginate-carrageenan complex beads was confirmed<br />
using Fourier transformed infrared (FTIR) spectroscopy.<br />
To monitor the stability <strong>of</strong> oil before and after encapsulation was done using<br />
FTIR spectroscopy. The oxidation process under UV light (254 μm) over time (after<br />
1h, 4h and 6h) was monitored calculating the ratios between absorbances bands<br />
<strong>of</strong> specific oxidation markers, <strong>of</strong> both free and encapsulated oil in alginate-carrageenan<br />
complex.<br />
The encapsulated oil showed a better stability against oxidation comparing<br />
with free oil monitored directly by FTIR, suggesting that this technique is suited to<br />
monitor the oxidation process.<br />
The release rates in methanol, hexane and tetrahydr<strong>of</strong>uran were measured. In<br />
hexane the release was slower than in the case <strong>of</strong> methanol and the best to release<br />
bioactive molecules was tetrahydr<strong>of</strong>uran.<br />
Keywords: seabuckthorn oil, encapsulation<br />
. 1
Section – Physical & Applied Chemistry<br />
Posters<br />
6-P28 13C NMR Spectroscopy <strong>of</strong> Humic Acids Ectracted<br />
from Incubated Plant Residues in Haplic Luvisol<br />
. 2<br />
Anton Zaujec, Jozef Šima, Juraj Chlpík, Nora Szombathová,<br />
Erika Tobiašová<br />
Agricultural University <strong>of</strong> Nitra, Dept. <strong>of</strong> Pedology and Geology,<br />
Tr. A. Hlinku 2, 949 76 Nitra, Slovakia<br />
e-mail: Anton.Zaujec@uniag.sk<br />
Post harvest residues (maize, alfalfa, wheat and green manures) were incubated<br />
in soil (Haplic Luvisol) for long time and HA investigated.<br />
Humic acids were extracted from composted post harvest residues (corn, alfalfa,<br />
wheat and green manures) and their variants with Haplic Luvisol after 1 year duration<br />
time <strong>of</strong> decomposition. Transformation processes <strong>of</strong> these plant residues where<br />
studied under laboratory conditions. Humic acids from plant residues are not completly<br />
formed and undergo futher transformation. Plant residues changed structure<br />
HA´s extracted from incubated soil with studied post harvest residues. As humification<br />
proceeds the content <strong>of</strong> HA’s carbon slowly increases, while the content <strong>of</strong><br />
hydrogen and H:C ratio decreases. This is evidence <strong>of</strong> progressing aromatization <strong>of</strong><br />
the HA’s molecules. The carboxyl group content <strong>of</strong> HA’s also increased slowly.<br />
From the percentage distribution <strong>of</strong> the carbon atoms, as determined by 13C-<br />
NMR, the results show that composting gives rise to the formation <strong>of</strong> the HAs that<br />
are more aromatic and less aliphatic carbon.<br />
Keywords: Haplic Luvisol, plant residues, humic acid, elemental composition,<br />
13C-NMR, HA aromaticity
Section 7:<br />
Polymers and Polymer<br />
Composites<br />
.1
Lectures<br />
.
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L01 The Way <strong>of</strong> Stereoregularity Determination <strong>of</strong><br />
Polypropylene<br />
Adam Hoza, Jan Kratochvíla, Soňa Hermanová<br />
Institute <strong>of</strong> Materials Science, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
xchoza@fch.vutbr.cz<br />
The purpose <strong>of</strong> this contribution is to evaluate and compare isotactic index determination<br />
<strong>of</strong> polypropylene homopolymer by extraction and solubility methods.<br />
A series <strong>of</strong> nine PP powder samples possessing molecular weights in the range from<br />
29×10 3 to 154×10 3 g mol –1 was investigated. Both the methods afforded fractionation<br />
<strong>of</strong> polypropylene into two portions, the soluble fraction and the insoluble one.<br />
Extractions were carried out in a modified Kumagawa extractor. Solvent extracts<br />
were obtained from polypropylene powders using several organic solvents<br />
(n-pentane, n-hexane, n-heptane, and n-octane) at their boiling points.<br />
Soluble fractions were prepared by dissolving polypropylene powder in high<br />
boiling solvents (xylene, decahydronaphthalene, and 1,2,3,4-tetrahydronaphthalene)<br />
and cooling polymer solutions to 23°C.<br />
All the fractions were characterized using 13 C-NMR, DSC, and SEC methods.<br />
Comparison <strong>of</strong> extraction and solubility methods showed a significant differences<br />
in the amount, structure, molecular weight, and crystalinity <strong>of</strong> soluble and insoluble<br />
fractions.<br />
Keywords: Isotactic index, polypropylene, extraction<br />
.
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L02 The Crystallization Kinetics in Semicrystalline<br />
Nanocomposites<br />
.<br />
Kateřina Hynštová, Jan Kalfus, Josef Jančář<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkynova 118, 612 00 Brno, Czech Republic<br />
xchynstova@fch.vutbr.cz<br />
Nucleation and crystal growth greatly affect morphology and, thus, mechanical<br />
properties <strong>of</strong> semicrystalline polymers. Presented contribution brings an alternative<br />
approach to the description <strong>of</strong> crystallization kinetics in polyolefines filled<br />
with weakly interacting nano-fillers. It has been shown that the concept <strong>of</strong> chain<br />
reptation in a melt can be successfully implemented into the classical kinetic surface<br />
nucleation theory. In nanocomposites, high specific surface area is able to easily<br />
induce the chain immobilization even at very low filler loadings. In the vicinity <strong>of</strong><br />
the filler surfaces, polymer chains exhibit retarded reptation motion due to the chain<br />
immobilization caused by the filler-polymer interaction.<br />
Keywords: nanocomposites, crystallization kinetics, reptation
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L03 Effect <strong>of</strong> Hexamethyldisiloxane Solution <strong>of</strong><br />
Zirconium Propoxide on Permanence <strong>of</strong> Paper<br />
Soňa Kirschnerová, Katarína Vizárová, Svetozár Katuščák<br />
Institute <strong>of</strong> Polymer Materials, Department <strong>of</strong> Chem. Technology <strong>of</strong> Wood, Pulp and Paper<br />
Slovak University <strong>of</strong> Technology, Radlinského 9, 831 07 Bratislava, Slovak Republic<br />
sona.kirschnerova@stuba.sk<br />
Double alkoxides, combination <strong>of</strong> chemical elements Al-K, Sn-Mg, Zr-Ca, used<br />
like neutralizing agent in a suitable solvents, such as alcohols, floro-chlorohydrocarbons,<br />
benzine hydrocarbons and siloxanes. Disadvantage upper alkoxides is formation<br />
<strong>of</strong> visible deposit. The aim <strong>of</strong> this work is to verify effect <strong>of</strong> hexamethyldisiloxane<br />
solution <strong>of</strong> zirconium propoxide on permanence <strong>of</strong> newsprint paper.<br />
Newsprint paper with extract pH (pH v ) 5.5–6.0; grammage (m s ) 45 gm –2 , containing<br />
55% <strong>of</strong> mechanical bleached groundwood, 20% <strong>of</strong> bleached kraft pulp, 15%<br />
scrap fibres and 10 % clay. Samples were aged in hermetically sealed bags at 98 ± 2°C<br />
during 0, 1, 2, 3 and 5 days. Changes <strong>of</strong> folding endurance (ω), breaking strength<br />
(l t ), concentration <strong>of</strong> carbonyls groups (∆c c=o ), pH v , total color difference (∆E) were<br />
studied.<br />
Utilization <strong>of</strong> studied modification system resulted in smooth surface <strong>of</strong> modified<br />
paper without wraps and formation <strong>of</strong> visible deposit on the surface. Artificial<br />
ageing causes decrease <strong>of</strong> l t in about <strong>of</strong> 15 % in comparison with the control paper.<br />
There was also observed decrease intensity <strong>of</strong> belt 1735 cm –1 (carbonyls groups) in<br />
comparison with control sample measured by FTIR.<br />
Keywords: zirconium, non polar solvent, newsprint, artificial ageing<br />
.
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L04 Modification <strong>of</strong> Polypropylene Through Radical<br />
Grafting in Melt<br />
.<br />
František Kučera<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry, Institute <strong>of</strong> Materials Science<br />
Purkynova 118, CZ-61200 Brno<br />
kucera-f@fch.vutbr.cz<br />
Modification <strong>of</strong> polymeric material based on polyolefins, especially polypropylene<br />
with functional monomers is a certain way to obtain advanced materials<br />
with improved technological properties. Functionalization <strong>of</strong> polypropylene by<br />
grafting with polar monomer itaconic acid or itaconic anhydride using 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane<br />
(Luperox 101) as radical initiator carried out in a<br />
polypropylene melt in a static mixer or in Brabender extruder. The effect <strong>of</strong> reaction<br />
conditions on the yield <strong>of</strong> grafting was observed by varying reaction time, ratio <strong>of</strong><br />
monomer to initiator concentration, temperature etc. It was found expressive influence<br />
<strong>of</strong> monomer/initiator ratio onto conversion <strong>of</strong> monomer and β-scission <strong>of</strong> polypropylene<br />
chain which cause increase in melt flow index. From the practical point o<br />
view seems technologically interesting method based on PP grafting in presence <strong>of</strong><br />
fillers such as glass fibers, calcite, cellulose etc. for composites manufacturing.<br />
Functionalization <strong>of</strong> polyproplyene using styrene and dicumylperoxide or 2,5dimethyl-2,5-bis(tert-butylperoxy)hexane<br />
is a way to produce new slightly crosslinked<br />
polymeric materials or a way to compatibilization <strong>of</strong> polystyrene and polypropylene.<br />
Keywords: grafting, reactive extrusion
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L05 Properties <strong>of</strong> Polypropylene Sheets Hot<br />
Compacted With Oriented Polypropylene Tapes<br />
Jaroslav Kučera, Jiří Sadílek, Blanka Rýznarová<br />
POLYMER INSTITUTE BRNO, spol. s r.o.,<br />
Tkalcovská 36/2, 656 49 Brno, Czech Republic<br />
kucera@polymer.cz<br />
The properties <strong>of</strong> hot compacted polypropylene sheets containing interlayers<br />
<strong>of</strong> oriented polypropylene tapes have been examined with respect to the temperature<br />
<strong>of</strong> pressing. The tensile modulus, tensile strength and dart drop properties<br />
were measured. It is shown that only a narrow “temperature window” is suitable<br />
for compacting and that the properties <strong>of</strong> such polypropylene/polypropylene composite<br />
are improved in comparison with those found for sheets moulded or extruded<br />
from the same type <strong>of</strong> pure polypropylene.<br />
The result <strong>of</strong> compacting process is correlated with the properties <strong>of</strong> annealed<br />
single polypropylene tapes. The tensile properties and the structure parameters (in<br />
terms <strong>of</strong> DSC characteristic melting values) <strong>of</strong> these tapes were measured.<br />
.
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-06 Biodegradation <strong>of</strong> Modified Polyurethane Foams<br />
.10<br />
Obruča Stanislav, Márová Ivana, Ondruška Vladimír,<br />
Vojtová Lucy, David Jan<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry , Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 118, 612 00 Brno<br />
e-mail: xcobruca@fch.vutbr.cz<br />
Increased production <strong>of</strong> non-degradable polymer waste by modern industrial<br />
society is accompanied by necessity to solve problems with negative effects to<br />
environment. In agreement with recent trends to avoid the accumulation <strong>of</strong> environmental<br />
pollution new modified polyurethane (PUR) foams were synthesized.<br />
Biopolymer components (acetyl-, hydroxyethyl- and carboxymethyl cellulose,<br />
acetylated starch, glutein) were used as modifying agents. In this work biodegradability<br />
<strong>of</strong> modified PUR foams was tested using bacterial single strain (Arthrobacter<br />
globiformis), mixed bacterial culture (Thermophillus sp.) and selected moulds strains<br />
(Fusarium solani, Alternaria alternata). In a complex comparative study standard biodegradability<br />
tests in laboratory conditions, in model composting conditions and<br />
also in different natural environments were used. In both bacterial systems, PUR<br />
biodegradation mechanism probably includes two additional effects: the abiotic<br />
decomposition followed by consequent utilization <strong>of</strong> degradation products by the<br />
bacterial culture. Under natural and composting conditions biodegradation <strong>of</strong> PUR<br />
foams was strongly influenced by abiotic factors. The highest degree <strong>of</strong> biodegradation<br />
was found in PUR modified by acetylated starch and carboxymethyl cellulose.<br />
In mould tests the presence <strong>of</strong> PUR led to enhanced biomass production. Significant<br />
effect <strong>of</strong> cell adsorption on PUR surface was observed too. In conclusion, tested<br />
microorganisms can be used for biodegradation <strong>of</strong> modified polyurethane foams.<br />
The degree <strong>of</strong> biodegradation is strongly dependent on the type <strong>of</strong> modifying agent,<br />
type <strong>of</strong> microorganism as well as on many abiotic factors.<br />
Keywords: biodegradation, polyurethane foams
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L07 Reinforcing Mechanism in Layered Silicate<br />
Nanocomposites<br />
Lukáš Recman, Josef Jančář, Jan Kalfus<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkynova 118, 612 00 Brno, Czech Republic<br />
jancar@fch.vutbr.cz<br />
During the last 15 years large volume <strong>of</strong> literature has been published on the<br />
reinforcement <strong>of</strong> various polymers with nano-sized particles. Among them, nanocomposites<br />
based on polymers reinforced with layered silicates were investigated<br />
most extensively. Despite the vast extent <strong>of</strong> experimental data published, there is<br />
still no unambiguous agreement on the true mechanism <strong>of</strong> reinforcement in these<br />
nanocomposites. In this contribution, experimental data on the reinforcement <strong>of</strong> linear<br />
amorphous and semicrystalline polymers with layered silicates collected from<br />
literature were analyzed using simple micromechanics model. It has been shown<br />
thath the primary reinforcing mechanism operating in amorphous nanocomposites<br />
below the matrix Tg and in semicrystalline nanocomposites below the matrix Tm<br />
is not related to the nano-scale processes and can be predicted using simple continuum<br />
mechanics model, satisfactorily.<br />
Keywords: layered structures, nanocomposites, mechanical properties, elastic<br />
properties<br />
.11
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L08 The Influence <strong>of</strong> Mg Compound Paper<br />
Modification on Hornification and Strength<br />
Properties During Accelerated Ageing<br />
.12<br />
Štefan Šutý, Katarína Petriláková, Svetozár Katuščák, Soňa Kirschnerová,<br />
Michal Jablonský, Katarína Vizárová<br />
Department <strong>of</strong> Wood, Cellulose and Paper, FCHPT STU Bratislava<br />
Radlinského 9. 812 37 Bratislava, Slovakia<br />
stefan.sut@stuba.sk<br />
This paper is focused on influence <strong>of</strong> Mg compound modification on changes<br />
<strong>of</strong> WRV during accelerated ageing <strong>of</strong> paper. It has been recognized the two modification<br />
substances which have been different in concentration <strong>of</strong> Mg (as a MgO)<br />
and distribution in modified paper (on the surface and in volume <strong>of</strong> paper). The<br />
results show that both <strong>of</strong> them have influence on water retention value and hornification<br />
during accelerated ageing <strong>of</strong> paper. Mg substances have a positive influence<br />
on swelling <strong>of</strong> pulp fibres due to reactions with water in paper. The efficiency <strong>of</strong><br />
modification substances is different. The more effective have been the substance<br />
with higher concentration <strong>of</strong> Mg. The results also showed the good correlation between<br />
WRV and strength properties <strong>of</strong> the paper.<br />
Keywords: hornification, water retention value, double falds, breaking length,<br />
accelerated ageing
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L09 Impact <strong>of</strong> Processing on Degradation <strong>of</strong><br />
Polypropylene Impact-Copolymer<br />
Jiří Tocháček, Soňa Hermanová, Josef Jančář, Jan Kalfus<br />
Polymer Institute Brno, Ltd.,<br />
Tkalcovská 36/2, 656 49 Brno, Czech Republic<br />
The impact <strong>of</strong> processing on molecular structure and properties <strong>of</strong> polypropylene<br />
impact-copolymer (ICPP) were investigated. During processing realized in a<br />
laboratory scale by multiple extrusion on a 19 mm single-screw extruder, exposure<br />
to thermomechanical impacts caused a partial degradation <strong>of</strong> the ICPP polymer.<br />
Quantification <strong>of</strong> the extent <strong>of</strong> degradation and investigation <strong>of</strong> processes taking<br />
place in the homopolymeric and copolymeric phases <strong>of</strong> the material were the principle<br />
issues.<br />
It was found that most <strong>of</strong> the structural changes took place in a homopolymeric<br />
phase, which during processing mostly behaved as a standard PP homopolymer. Behaviour<br />
<strong>of</strong> this homopolymeric phase most influenced flow properties <strong>of</strong> the melt.<br />
The rubbery phase, on the other hand, consisting <strong>of</strong> ethylene-propylen rubber<br />
(EPR) and PE homopolymer, did not influence polymer melt so far. The changes<br />
due to processing were moderate and more than melt they influenced the impact<br />
characteristics <strong>of</strong> the solid matrix. Because the rubbery phase represents only a minority<br />
portion <strong>of</strong> the overall solid matrix (10-12 wt.%), identification <strong>of</strong> its structural<br />
changes is more complicated and cannot be realized by simple approaches.<br />
Attempts using a successive extraction <strong>of</strong> degraded material and its analyses, or detailed<br />
analyses <strong>of</strong> fracture-mechanical bahaviour <strong>of</strong> the solid phase provided some<br />
indirect indications on phenomena, which, as a consequence <strong>of</strong> processing, may<br />
take place in the heterogeneous rubbery phase <strong>of</strong> the ICPP matrix.<br />
Keywords: Degradation, polypropylene, impact-copolymer, processing,<br />
multiple extrusion,<br />
.1
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L10 Polymer Semiconductors for Future Molecular<br />
Electronic Devices<br />
.1<br />
Martin Weiter, Martin Vala, Stanislav Nešpůrek<br />
Brno University <strong>of</strong> Technology,Faculty <strong>of</strong> Chemistry,<br />
Purkynova 118, 612 00 Brno, Czech republic<br />
weiter@fch.vutbr.cz<br />
Polymer semiconductors are poised as never before to transform the world <strong>of</strong><br />
circuit and display technology. After more than 15 years <strong>of</strong> academic and industrial<br />
research worldwide the conjugated polymers has reached a very high level <strong>of</strong> outstanding<br />
material properties and the potential for different industrial applications<br />
is now emerging. Organic photovoltaic solar cells together with polymer photosensors<br />
and current switches represent one <strong>of</strong> the most promising applications which<br />
will be discussed.<br />
In spite <strong>of</strong> much progress that has been made in the understanding <strong>of</strong> the underlying<br />
science that controls the properties <strong>of</strong> the devices, still relatively little is<br />
known about the basic electron processes in these materials. Therefore the detailed<br />
studies <strong>of</strong> photonic processes, in particular those <strong>of</strong> photoinduced charge generation,<br />
transport and recombination, photoconductivity, electro- and photoluminescence<br />
and their dynamics were done a the results will be presented in particular<br />
with respect to their chemical structure <strong>of</strong> investigated materials.<br />
Keywords: polymer semiconductors, molecular electronic
Section – Polymers & Polymers Composites<br />
Lectures<br />
7-L11 Molecular Modeling <strong>of</strong> Materials with Network<br />
Structure<br />
Jan Žídek, Josef Jančář<br />
Institute <strong>of</strong> Materials Science, Brno University <strong>of</strong> Technology,<br />
Purkynova 118, 61200 Brno, Czech Republic<br />
zidek@fch,vutbr,cz<br />
This paper deals with modeling <strong>of</strong> deformation properties <strong>of</strong> polymeric materials.<br />
Deformation properties are caused by two mechanisms: entropic and enthalpic<br />
contribution. In many materials one influence is prevailing and the second is negligible.<br />
However, there are materials with both comparable effects and composite<br />
model should be used.<br />
The entropic influence was calculated from network models. The rubbery material<br />
was considered 3D tetra-functional macromolecular network with entanglements<br />
acting as physical x-links. The deformation <strong>of</strong> the chains was calculated from<br />
single chain elasticity theory.<br />
The Enthalpic contribution was calculated from the function <strong>of</strong> energy density<br />
on strain tensor. Energy density was taken as the output <strong>of</strong> Molecular dynamics<br />
s<strong>of</strong>tware.The complex model can be applied to whole spectra <strong>of</strong> network-like materials<br />
from gels to glasses.<br />
Acknowledgement: The research was supported by Ministry <strong>of</strong> Education under<br />
grant MSM 0021630501.<br />
Keywords: network, mechanical properties.<br />
.1
Posters<br />
.1
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P01 Physico-Chemical Properties <strong>of</strong> Functionalized<br />
Temperature-Sensitive Biocompatible Block<br />
Copolymers<br />
Jan David, Lucy Vojtová, Jiří Kučerík, Ludmila Mravcová,<br />
Martin Chytil, Miloslav Pekař, Milada Vávrová, Josef Jančář<br />
Institute <strong>of</strong> Materials Science, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00, Brno, Czech Republic<br />
xcdavid@fch.vutbr.cz<br />
Temperature-sensitive polymers based on hydrophobic poly(lactic acid-co-glycolic<br />
acid) (PLGA) copolymer and hydrophilic poly(ethylene glycol) (PEG) are being<br />
investigated extensively for medical applications because <strong>of</strong> their nontoxicity,<br />
biocompatibility and bioresorbability.<br />
In this work, the biodegradable A-B-A triblock copolymers made up from A<br />
blocks <strong>of</strong> PLGA and B block <strong>of</strong> PEG were synthesized via cationic ring opening<br />
bulk polymerization without solvent. The resulting copolymer was functionalized<br />
with itaconic acid anhydride in order to prepare macromonomer suitable for further<br />
cross-linking via double bonds and/or –COOH groups. The chemical structure <strong>of</strong><br />
the copolymer was investigated by means <strong>of</strong> infrared spectroscopy and proton nuclear<br />
magnetic resonance. Physico-chemical properties were studied using differential<br />
scanning calorimetry, thermogravimetry and gel permeation chromatography.<br />
The sol-gel transitions and critical micellar concentrations <strong>of</strong> its water solutions.<br />
were evaluated via novel approach using rheometry and high resolution ultrasonic<br />
spectroscopy as well as the already known and frequently used test tube inverting<br />
method.<br />
This work was supported by the Ministry <strong>of</strong> Education, Youth and Physical<br />
Training <strong>of</strong> the Czech Republic under the research project MSM 0021630501.<br />
Keywords: biocompatible, macromonomers<br />
.1
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P02 Properties <strong>of</strong> Recycled Carbon Fibers<br />
.20<br />
Jan Grégr, Vladimír Kovačič, Miroslav Valeš,<br />
Bedřich Štekner, Karel Cihelník<br />
Department <strong>of</strong> Chemistry, Fakulty <strong>of</strong> Education, Technical university <strong>of</strong> Liberec<br />
KCH FP, TUL, Studentská 2,46717 Liberec<br />
jan.gregr@tul.cz<br />
Fibers in high performance composite materials are very expensive. For this<br />
reason is suitable to interesting about recycling waste products from fabrication <strong>of</strong><br />
composites and composite parts after its lifetime. We made some experiments to<br />
obtain reinforcing carbon fibers from waste products and we evaluated properties<br />
<strong>of</strong> this recycled fibers. These fibers can be suitable for next exploitation. In contribution<br />
we demonstrate products <strong>of</strong> recycling and its properties. On the Department<br />
<strong>of</strong> Textile materials, Faculty <strong>of</strong> textile engineering and Department <strong>of</strong> chemistry,<br />
Faculty <strong>of</strong> education, Technical university <strong>of</strong> Liberec are developed testing methods<br />
for evaluating <strong>of</strong> recycled high performance fibers. We made analysis by the optical,<br />
gravimetric and SEM method; we realized tests <strong>of</strong> tensile strength, E-modulus,<br />
elongation to break and we studied wetting characteristics <strong>of</strong> these fibers.<br />
Keywords: recycling <strong>of</strong> composite, properties <strong>of</strong> recycled carbon fibers
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P03 Halosilyl-substituted Cyclopentadienyl<br />
Titanium Complexes as Catalysts for Styrene<br />
Syndiospecific Polymerisation<br />
Soňa Hermanová, Jan Merna, Milan Erben, Zdeněk Svačina<br />
Institute <strong>of</strong> Materials Science, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00 Brno, Czech Republic<br />
hermanova-s@fch.vutbr.cz<br />
Syndiotactic polystyrene is an interesting material with a high melting point<br />
<strong>of</strong> 275 °C and a fast crystallization rate as compared with isotactic polymer. Its interesting<br />
properties which are similar to those <strong>of</strong> some more expensive engineering<br />
plastics are the reason for further scientific interest. In our previous work we reported<br />
the catalytic behaviour <strong>of</strong> novel half-sandwich titanium complexes; [TiCl 3 (η 5 -<br />
C 5 H 4 SiCl 3 )], [TiCl 3 (η 5 -C 5 H 4 SiMe 2 F)], [TiCl 3 (η 5 -C 5 H 4 SiMeF 2 )], [TiCl 3 (η 5 -C 5 H 4 SiF 3 )] and<br />
[TiF 3 (η5-C 5 H 4 SiMe 2 F)] in syndiotactic styrene polymerisation. The variation <strong>of</strong> halosilyl<br />
substitutent on cyclopentadienyl ligand affected both the catalytic activity<br />
and the properties <strong>of</strong> s-PS.<br />
In this contribution a series <strong>of</strong> polymerisation runs was carried out in a time<br />
scale <strong>of</strong> 20–120 min in order to compare the activity dependence <strong>of</strong> examined complexes<br />
on reaction time and thus to better evaluate their polymerisation behaviour.<br />
Results obtained are discussed with respect to the steric and electronic properties <strong>of</strong><br />
ligand sphere influencing significantly the character <strong>of</strong> active species.<br />
Keywords: polystyrene, titanium complex<br />
.21
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P04 Synthesis <strong>of</strong> Modified Cucurbit [n]Urils<br />
.22<br />
Muhammad Shamsul Azim Khan, Vladimír Šindelář<br />
Department <strong>of</strong> Chemistry, Masaryk University,<br />
Kotlářská 2, 611 37 Brno, Czech Republic<br />
sindelar@chemi.muni.cz<br />
The supramolecular chemistry <strong>of</strong> cucurbit[n]urils (CB[n], n = 5-10), a synthetic<br />
receptor, have gained much attention in the new millennium for their exceptional<br />
molecular recognition ability. CB[n] is a macrocyclic compound self-assembled from<br />
an acid-catalyzed condensation reaction <strong>of</strong> glycoluril and formaldehyde or paraformaldehyde<br />
or mixture <strong>of</strong> aldehydes. Compared to the chemistry <strong>of</strong> cyclodextrins<br />
and calixarenes, however, that <strong>of</strong> CB[n] has developed slowly until recently, which<br />
may be attributed mainly to their poor solubility in common solvents and inability<br />
to functionalize these molecules. Our research is aimed to the synthesis and the<br />
characterization <strong>of</strong> new functionalized CB[n]. Recently, we have successfully synthesized<br />
new functionalized CB[n]s. Some <strong>of</strong> them are characterized and purified.<br />
As the final reaction mixture results in the composition <strong>of</strong> broad range mass distribution<br />
<strong>of</strong> different sized glycoluril oligomers, both substituted and unsubstituted<br />
cucurbit[n]urils (where n = 5-7), salts and other polymeric side reaction products, it<br />
has become a major concern to develop new methods for the purification. The purification<br />
steps were based on fractional precipitation <strong>of</strong> solids <strong>of</strong> various mass distribution<br />
using acetone or methanol and subsequent treatment <strong>of</strong> the collected solids<br />
or fractions depending on their solubility differences. In this review, methods <strong>of</strong> the<br />
separation and the characterization <strong>of</strong> the prepared CB[n] by MALDI-TOF-MS and<br />
NMR spectroscopy will be described. The new method <strong>of</strong> preparing functionalized<br />
cucurbit[n]urils propelled CB[n] chemistry to a new height as this partially not only<br />
solves the solubility problem but also opens up the gateway to the generation <strong>of</strong><br />
tailor-made CB[n] derivatives.<br />
This research was supported by the grant 203/07/P382 from the Grant Agency<br />
<strong>of</strong> the Czech Republic.<br />
Keywords: cucurbit[n]uril
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P05 Application <strong>of</strong> Thermochromic Compounds in<br />
Polymeric Materials<br />
František Kučera, Petra Slánská<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry, Institute <strong>of</strong> Materials Science<br />
Purkynova 118, CZ-61200 Brno<br />
kucera-f@fch.vutbr.cz<br />
Temperature sensitive, color changing thermochromic material was prepared<br />
by compounding thermochromic materials with polypropylene matrix. A temperature<br />
stability and color stability were investigated in range <strong>of</strong> temperature 20–<br />
300 °C, temperature <strong>of</strong> color change was characterized. A method <strong>of</strong> thermochromic<br />
PP filament manufacturing was tested to produce three samples with different color.<br />
Properties <strong>of</strong> final fiber were investigated.<br />
Keywords: thermochromic<br />
.2
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P06 Polymer Photoelectronic Devices Based on<br />
Interaction Between π-Conjugated Polymer<br />
Matrices and Photochromic Molecules<br />
.2<br />
Jiří Navrátil, Martin Weiter, Martin Vala, Oldřich Zmeškal, Petr Toman,<br />
Stanislav Nešpůrek<br />
Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkynova 118, 612 00 Brno, Czech republic<br />
xcnavratil@fch.vutbr.cz<br />
The theoretical and experimental studies proved that the photochromic reaction<br />
in studied devices should eventuate in changes <strong>of</strong> optical and electrical properties<br />
<strong>of</strong> polymers such as luminescence and conductivity. The quantum chemical<br />
calculations showed that the presence <strong>of</strong> dipolar species in the vicinity <strong>of</strong> a polymer<br />
chain modifies the on-chain site energies and consequently increases the width <strong>of</strong> the<br />
distribution <strong>of</strong> hopping transport states. Optical switching was studied using standard<br />
absorption and photoluminescence spectroscopy. A strong photoluminescence<br />
quenching after the photochromic conversion caused by radiative energy transfer<br />
was observed. The influence <strong>of</strong> photoswitchable charge carrier traps on charge<br />
transport was evaluated by current-voltage measurement, Impedance spectroscopy<br />
and by photoconductive methods. It was shown that deep traps may significantly<br />
affect energy <strong>of</strong> the transport level, and thus control the transport <strong>of</strong> charge carriers.<br />
Thus, the photoelectronic device transforming optical signal to electrical one can be<br />
proposed.<br />
Keywords: optical sensor, organic semiconductors, charge transport,<br />
photochromic switching
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P07 Analysis <strong>of</strong> the Wood Surface Treated by Diffuse<br />
Coplanar Surface Barrier Discharge type<br />
Atmospheric Plasma<br />
Erika Nováková, Michal Letko, Radovan Tiňo, Ján Marták, Lívia Beňová<br />
Department <strong>of</strong> Chemical Technology <strong>of</strong> Wood, Pulp and Paper, Faculty <strong>of</strong> Chemical and Food<br />
Technology, Slovak University <strong>of</strong> Technology<br />
Radlinského 9, 812 37, Bratislava, Slovakia<br />
erika.novakova@stuba.sk<br />
Utility properties <strong>of</strong> polymer materials including wooden based materials are<br />
<strong>of</strong>ten determined by surface properties. Adhesion <strong>of</strong> coatings utilized to cover wood<br />
surface can be influenced by transformation <strong>of</strong> wood surface pH.<br />
Wood surface was treated by atmospheric plasma, which was generated by<br />
diffuse coplanar surface barrier discharge (DCSBD). It was discovered that after the<br />
plasma treatment, wood surface pH changed in relation to distance <strong>of</strong> wood surface<br />
from source <strong>of</strong> plasma (electrode). From the surface <strong>of</strong> Fagus silvatica, Quercus robur<br />
and Picea excelsa treated by the plasma, were obtained a cold water extracts.<br />
Total change <strong>of</strong> acid components concentration was determined by the acidbase<br />
titration. The highest increase <strong>of</strong> acid components up to 95 % was achieved<br />
from oak wood, which surface was in direct contact with plasma electrode. Subsequently<br />
there was determined change <strong>of</strong> concentration and presence <strong>of</strong> carboxylic<br />
acids by isotachophoresis. Concentrations <strong>of</strong> formic acid, acetic acid, propionic acid<br />
and butyric acid altered in relation to species <strong>of</strong> wood. The highest increse <strong>of</strong> formic<br />
acid up to 56 % was achieved in oak wood.<br />
Keywords: atmospheric plasma, isotachophoresis, wood surface,<br />
.2
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P08 Strategies for Enhancing<br />
Poly(3-hydroxybutyrate) Production in Selected<br />
Bacterial Strains<br />
.2<br />
Stanislav Obruča, Soňa Melušová, Ivana Márová, Zdeněk Svoboda<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry , Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 118, 612 00 Brno<br />
E-mail: xcobruca@fch.vutbr.cz<br />
Polyhydroxyalkanoates (PHAs) are a group <strong>of</strong> bacterial polyesters that have<br />
received much interest in recent times due to their biodegradable nature and mechanical<br />
properties which are very similar to traditional plastics from petrochemical<br />
routes. The most common PHA is poly(3-hydroxybutyrate) (PHB). Many bacterial<br />
strains use PHB as carbon and reducing power storage material.<br />
Bacterial strains usually accumulate PHB during exposition to stress condition.<br />
Typical strategy, which is widely used for enhancing <strong>of</strong> production, is limitation<br />
with nitrogen, phosphor or another element when excess amount <strong>of</strong> carbon source<br />
is present.<br />
The influences <strong>of</strong> selected stress factors on accumulation <strong>of</strong> PHB were tested<br />
in this work. Limitations with nitrogen and/or phosphor source were tested during<br />
growth <strong>of</strong> bacteria on synthetic as well as natural waste carbon source. Oxygen<br />
limitation was studied too. Finally, peroxide stress, osmotic stress, ethanol stress<br />
and UV radiation were studied as additional stress factors to nutrition starvation.<br />
Combined effect <strong>of</strong> exogenous stress could lead to increased accumulation <strong>of</strong> PHB<br />
in selected bacterial strains.<br />
Keywords: poly(3-hydroxybutyrate), stress condition
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P09 Comparison <strong>of</strong> Biodegradability <strong>of</strong> Modified<br />
Polyuretne Foams and Polyurethane Elastomeric<br />
Films<br />
Stanislav Obruča, Ivana Márová, Jana Piechová, Lucy Vojtová,<br />
Marek Novotný, Jan David<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry , Department <strong>of</strong> Food Chemistry and<br />
Biotechnology, Purkyňova 118, 612 00 Brno<br />
e-mail: xcobruca@fch.vutbr.cz<br />
Biodegradation <strong>of</strong> polymeric materials is important process which affects a<br />
wide range <strong>of</strong> industries. Polymer biodegradability depends on many factors as<br />
molecular weight, crystallinity or physical forms. Biodegradability <strong>of</strong> several modified<br />
polyurethanes (PUR) foams and films was tested using mixed thermophillic<br />
bacterial culture Thermophillus sp. Films and foams were modified by biopolymer<br />
component (10 % <strong>of</strong> acetyl-, hydroxyethyl- and carboxymethyl cellulose, 10 % activated<br />
starch). Both films and foams supported the growth <strong>of</strong> culture in comparison<br />
with culture without PUR. Unusual long lasting lag-phase was observed when<br />
culture was cultivated in presence <strong>of</strong> PUR films. This effect was probably caused<br />
by formation <strong>of</strong> some toxic components which inhibited the start <strong>of</strong> growth. Mass<br />
decreases <strong>of</strong> foams and films were very similar, but mechanism <strong>of</strong> biodegradation<br />
is probably different. Mainly abiotic factors are involved in biodegradation <strong>of</strong> PUR<br />
foams. Products <strong>of</strong> abiotic degradation are consequently utilized by bacterial culture.<br />
Abiotic factors play important role during biodegradation <strong>of</strong> PUR films too,<br />
but, surprisingly, films which are expected to be more rigid, were more susceptible<br />
to biotic degradation. Measure <strong>of</strong> biotic degradation positively corresponded with<br />
the growth <strong>of</strong> culture. This is probably caused by different incorporation <strong>of</strong> modifying<br />
agents into structure <strong>of</strong> film in comparison with foams.<br />
Keywords: biodegradation, polyurethane, foam, film<br />
.2
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P10 synthesIs <strong>of</strong> substItuted PolysIlylenes used as<br />
.2<br />
semIconductIve Polymers<br />
Imad Ouzzane, Soňa Hermanová, Martin Weiter, Stanislav Nešpůrek<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, Brno, Czech Republic<br />
ouzzane@fch.vutbr.cz<br />
Polysilylenes are <strong>of</strong> considerable research interest because <strong>of</strong> their electronic,<br />
photoelectrical and nonlinear optical properties, and the effect <strong>of</strong> σ-electron delocalization<br />
along the chain.<br />
Polysilylenes are most <strong>of</strong>ten obtained by Wurtz reductive coupling <strong>of</strong> organosilanes<br />
with sodium metal in refluxing toluene. Therefore the metal is easily distributed<br />
throughout the solution. Unfortunately, the yields <strong>of</strong> polymers and the reproducibility<br />
<strong>of</strong> the reaction are usually quite poor. The contribution reports on new<br />
methods and procedure based on new operatory conditions that allowed us to gain<br />
in yield and quality <strong>of</strong> product obtained.<br />
The other aim <strong>of</strong> our work is to synthesize new model <strong>of</strong> polysilylenes attached<br />
directly to functional chromophores throughout a Suzuki coupling and investigate<br />
their electrical and optical properties. The proposed structure should be capable <strong>of</strong><br />
light driven switching between high conductive and low conductive regime, and<br />
therefore to be used as current switch or actuator.<br />
Keywords: polysilylene, synthesis, organic semiconductors
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P11 Automation <strong>of</strong> PE-CVD Process for Preparing <strong>of</strong><br />
Nanostructured Films<br />
Radek Přikryl<br />
Brno University <strong>of</strong> Technology, Institute <strong>of</strong> Materials Science<br />
Purkyňova 464/118, 612 00, Brno, Czech Republic<br />
prikryl@fch.vutbr.cz<br />
Plasma Enhanced Chemical Vapor Deposition (PE-CVD) is a power tool for<br />
designing <strong>of</strong> nanostructured films. The used technology is relatively complicated<br />
and condition-intensive in term <strong>of</strong> reproducibility <strong>of</strong> resulting material. The deposition<br />
system has many input parameters have to be set or continuously regulated.<br />
A controlling <strong>of</strong> the process parameters using automation technique can increase<br />
reproducibility <strong>of</strong> experiments. Automated measured data recording enable additional<br />
check <strong>of</strong> deposition process. The aim <strong>of</strong> presented work is a design and development<br />
<strong>of</strong> programmable automation system for deposition process parameters<br />
controlling.<br />
Keywords: nanostructure, PE-CVD, automation, plasmachemistry<br />
.2
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P12 Crystal Structure <strong>of</strong> an Lanthanide Sandwich<br />
Complex (C5Me5)2NdCl2Li(OEt2)2<br />
. 0<br />
Lukáš Richtera, Soňa Hermanová, Vojtěch Jančík, Jaroslav Cihlář<br />
Brno University <strong>of</strong> Technology, Institute <strong>of</strong> Materials Science<br />
Purkyňova 118, 612 00, Brno, Czech Republic<br />
richtera@fch.vutbr.cz<br />
The potential <strong>of</strong> lanthanide sandwich complexes <strong>of</strong> general formula<br />
(C 5 Me 5 ) 2 LnCl 2 Li(OEt 2 ) 2 in polymerisation catalysis is nowadays well established.<br />
The reaction mechanism <strong>of</strong> ethylene oligomerisation was published few years ago<br />
but there was no reliable pro<strong>of</strong> <strong>of</strong> (C 5 Me 5 ) 2 NdCl 2 Li(OEt 2 ) 2 structure even though its<br />
synthesis was described already in 1981.<br />
The structure <strong>of</strong> (C 5 Me 5 ) 2 NdCl 2 Li(OEt 2 ) 2 was first proposed based on the similarity<br />
with the spectral data <strong>of</strong> compounds (C 5 Me 5 ) 2 LnCl 2 Li(OEt 2 ) 2 (Ln = Ce, Sm)<br />
whose structures were known as well as for some other lanthanide sandwich complexes<br />
(Pr, Nd, Gd, Dy, Yb and Lu) with different organic donors (e.g. THF or TM-<br />
EDA) and various substituents on the cyclopentadienyl rings.<br />
Although many structures <strong>of</strong> lanthanidocenes with the general formula Cp 2 Ln-<br />
Cl 2 MD 2 (Cp = cyclopentadiene or its derivative, Ln = lanthanide, M = alkali metal,<br />
D = organic donor) are known, others have been reported to have a quite unconventional<br />
structures and/or coordinations numbers. Therefore we have focused on the<br />
determination <strong>of</strong> the crystal structure <strong>of</strong> the title species a) to confirm or negate the<br />
structure predicted in already published studies; b) to get the missing experimental<br />
data for quantum mechanical study <strong>of</strong> this compound.<br />
The molecule <strong>of</strong> (C 5 Me 5 ) 2 LnCl 2 Li(OEt 2 ) 2 is localized on the mm symmetry site,<br />
which together with a heavy disorder <strong>of</strong> all organic residues made the structure determination<br />
rather difficult. However, it was possible to obtain data <strong>of</strong> satisfactory<br />
quality and finally confirm the molecular structure <strong>of</strong> this species.<br />
Keywords: lanthanidocene, structure
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P13 Computing Effective Properties <strong>of</strong> Composites<br />
Via FEM Simulations<br />
Miroslav Rolník, Jan Žídek, Josef Jančář<br />
<strong>Vysoké</strong> <strong>učení</strong> technické v Brně, <strong>Fakulta</strong> <strong>chemická</strong>,<br />
Purkyňova 464/118, 612 00 Brno<br />
xcrolnik@fch.vutbr.cz<br />
A dependence <strong>of</strong> modulus <strong>of</strong> heterogeneous material on its composition is presented.<br />
A mathematical homogenization method was used for calculation this modulus.<br />
Input properties were portions <strong>of</strong> components, mechanical properties <strong>of</strong> these<br />
components and space conformation. Inclusions are supposed to be spherical and<br />
cylindrical, randomly distributed in space and with random parameters <strong>of</strong> generated<br />
shapes. The method for generating such geometry is presented. This generator<br />
was used to produce unit cell (representative volume element) and consequently<br />
effective properties were determined by mathematical theory <strong>of</strong> homogenization.<br />
Method was supposed for periodic material and for this assumption it give us formulas<br />
for these effective properties.<br />
Keywords: macroscopic material properties, heterogeneous material, FEM<br />
simulation<br />
. 1
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P14 Effect <strong>of</strong> Thermal History on<br />
Structure-Property Relationship in Oriented<br />
Polypropylene Films and Tapes<br />
. 2<br />
Jiří Sadílek, Jaroslav Kučera<br />
Brno University <strong>of</strong> Technology, Faculty <strong>of</strong> Chemistry<br />
Purkyňova 118, 612 00 Brno, Czech Republic Czech Republic<br />
xcsadilek@fch.vutbr.cz<br />
Effect <strong>of</strong> temperature ageing on structure-property relationship in oriented<br />
polypropylene films and tapes is described in this contribution. Commercial grade<br />
polypropylene Mosten TB 002 (2.73 g/10min) was used as primary material. This<br />
material was extruded and film with 400 μm thickness was prepared by chill roll<br />
technique from polypropylene melt. Primary film was drawn with drawing ratio 5:1<br />
in the first step, then the film was cut to tapes and they were drawn on the hot plate<br />
with drawing ratio from 5:1 up to 11:1 in the second step.<br />
Free and fixed strips <strong>of</strong> films and tapes were aged at different temperatures.<br />
Unannealed and annealed samples were tested. Strength and elongation at break<br />
(tensile properties), degree <strong>of</strong> crystallinity and structure characteristics (DSC), stiffness<br />
by temperature scan and isothermal creep at DMA measurements, chain orientation<br />
(RTG) and shrinkage <strong>of</strong> free annealed film strips and tapes were measured.<br />
Keywords: drawing ration, creep, crystalinity, orientation
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P15 Bioresorbable Collagen-Hyaluronic Acid<br />
Scaffolds Cross-Linked Using a Water-Soluble<br />
Carbodiimide<br />
Alexandra Sloviková, Lucy Vojtová, Josef Jančář<br />
Institute <strong>of</strong> Materials Chemistry School <strong>of</strong> Chemistry Brno University <strong>of</strong> Technology<br />
Purkynova 118, 612 00 Brno, Czech Republic<br />
xcslovikova@fch.vutbr.cz<br />
Porous collagen scaffold matrices containing hyaluronic acid (HA) are promising<br />
materials for tissue regeneration. In this work, two types <strong>of</strong> matrices were prepared<br />
(Coll-HA-1 and Coll-HA-2) followed by comparing their physical properties.<br />
The Coll-HA-1 was made by combination <strong>of</strong> freeze drying and air drying method<br />
while the Coll-HA-2 was only freeze dried, which is commonly used method. Prepared<br />
scaffolds were subsequently cross-linked using EDC/NHS system for different<br />
period <strong>of</strong> time. The amount <strong>of</strong> free amino-groups representing the cross-linking<br />
efficiency were determined using 2,4,6-trinitrobenzene sulphonic acid.<br />
Scanning electron microscope images <strong>of</strong> collagen-HA matrices demonstrated<br />
the difference in the scaffold 3-D structures. Samples <strong>of</strong> Coll-HA-1 were found to<br />
be smooth in comparison with porous Coll-HA-2. The hydrolytic stability at physiological<br />
conditions was longer then seven days for all samples. The bioinduction<br />
tests showed the increasing migration <strong>of</strong> mesenchymal cells in material contain HA<br />
in comparison with pure collagen.<br />
Acknowledgement: This work was supported by the Ministry <strong>of</strong> Education, Youth<br />
and Physical Training <strong>of</strong> the Czech Republic under the research project MSM<br />
0021630501.<br />
Keywords: collagen, hyaluronic acid, haemostatic<br />
.
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P16 Water Retention Value During Thermally<br />
Accelerated Ageing <strong>of</strong> Paper.<br />
.<br />
Štefan Šutý, Katarína Petriláková, Svetozár Katuščák, Michal Jablonský,<br />
Katarína Vizárová., Soňa Kirschnerová<br />
Department <strong>of</strong> Wood, Cellulose and Paper, FCHPT STU Bratislava<br />
Radlinského 9. 812 37 Bratislava, Slovakia<br />
stefan.sut@stuba.sk<br />
Water retention value (WRV) as a value for determination <strong>of</strong> swelling <strong>of</strong> the<br />
pulp fibres has been followed during thermally accelerated ageing <strong>of</strong> acid wood<br />
paper with 20 % content <strong>of</strong> chemical pulp fibres. The water retention value is significantly<br />
decreasing with increasing time <strong>of</strong> accelerated ageing. The relationships<br />
between WRV and strength properties have been investigated too. The evaluation <strong>of</strong><br />
samples with mercury porosimetry have been find out that the cumulative volume<br />
<strong>of</strong> pores increasing with time <strong>of</strong> paper ageing and pore radius average and specific<br />
surface <strong>of</strong> pores decreasing. The results from mercury porosimetry support the<br />
hornification process during accelerated ageing <strong>of</strong> paper. It can be concluded that<br />
during thermal accelerated ageing the hornification is one <strong>of</strong> the reason <strong>of</strong> embitterment<br />
the paper.<br />
Keywords: hornification, water retention value, double falds, breaking length,<br />
accelerated ageing
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P17 Spin Probe Dynamics in Relation to Free Volume<br />
and Relaxation Dynamics <strong>of</strong> Poly(isobutylene)<br />
Helena Švajdlenková, Josef Bartoš<br />
Polymer institute <strong>of</strong> the Slovak Academy <strong>of</strong> Sciences<br />
Dúbravská cesta 9, 84236 Bratislava, Slovak Republic<br />
Upolhela@savba.sk<br />
We present the dynamics <strong>of</strong> a series <strong>of</strong> spin probes <strong>of</strong> different volume<br />
and shape in amorphous polymer poly(isobutylene) (PIB) as investigated by means<br />
<strong>of</strong> electron spin resonance (ESR) technique in relation to the free volume <strong>of</strong> PIB<br />
from positron annihilation lifetime spectroscopy (PALS) and the dynamic data from<br />
broadband dielectric spectroscopy (BDS) and nuclear magnetic resonance (NMR)<br />
spectroscopy. For the smallest spin probe TEMPO, the analyses <strong>of</strong> the spectral pa-<br />
rameter, 2 Z ' A , and the correlation time, c<br />
τ , vs. T plots provided the characteristic<br />
Azz<br />
ESR temperatures ( TX 2 τ τ<br />
1 , T50 G ) and ( T X1<br />
, T c ) which are consistent with the char-<br />
acteristic PALS temperatures<br />
PALS<br />
T g ,<br />
L<br />
b<br />
T 1 = σ T b1<br />
, as obtained from the temperature<br />
dependences <strong>of</strong> the o-Ps lifetime, τ 3 , and the width <strong>of</strong> o-Ps lifetime distribution, 3 σ<br />
. In addition, the relationships between the spin probe size, W V Tempo , and the free vol-<br />
n h V g at the characteristic ESR temperatures indicate<br />
the influence <strong>of</strong> the free volume fluctuation.<br />
Finally, the mutual PALS and ESR findings are related to free volume fluctuation<br />
associated with secondary δ - or β - process, respectively.<br />
ume hole size distributions ( )<br />
Keywords: poly(isobutylene); spin probe, free volume; dynamics<br />
.
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P18 Toughness Versus Strength and Stiffness <strong>of</strong><br />
Polypropylene Filled with Submicron CaCO 3<br />
Particles<br />
.<br />
Petr Veselý, Eva Nezbedová, Bohumil Vlach<br />
Faculty <strong>of</strong> Mechanical Engineering, Brno University <strong>of</strong> Technology<br />
Technicka 2, 616 69 Brno<br />
wesa@email.cz<br />
Commercial available polypropylene (PPH) was modified with β nucleation<br />
agent to achieve enhancement <strong>of</strong> its toughness. The difference size <strong>of</strong> CaCO 3 particles<br />
supplied from Solvay Company was used as fillers. The influence <strong>of</strong> the size<br />
and mass content <strong>of</strong> the particles on the mechanical properties <strong>of</strong> composites were<br />
investigated. Particularly, the stiffness, strength and toughness were chosen as relevant<br />
parameters. The stiffness and strength were estimate by the means <strong>of</strong> tensile<br />
test while for toughness the J-R curve procedure was utilised. The results were correlated<br />
with microscopic observation.<br />
Keywords: PP/ CaCO 3 composites, mechanical properties.
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P19 Polysaccharides Modified Elastomeric<br />
Polyurethane<br />
Lucy Vojtová, Marek Novotný, Stanislav Obruča, Jana Piechová,<br />
Ivana Márová, Josef Jančář<br />
Institute <strong>of</strong> Materials Science, Faculty <strong>of</strong> Chemistry, Brno University <strong>of</strong> Technology<br />
Purkyňova 118, 612 00, Brno, Czech Republic<br />
vojtova@fch.vutbr.cz<br />
Increasing the degradability <strong>of</strong> biologically hardly degradable but very <strong>of</strong>ten<br />
commercially used polyurethane is being extensively studied in order to avoid environmental<br />
pollution.<br />
Proposed work deals with the synthesis <strong>of</strong> elastomeric polyurethane with various<br />
biodegradable fillers based on natural polysaccharides like carboxymethylcellulose<br />
sodium salt, 2-hydroxyethylcellulose, cellulose acetate and acetylated starch.<br />
Prepared samples were tested in term <strong>of</strong> mechanical and biodegradable properties.<br />
The morphology <strong>of</strong> samples was analyzed by scanning electron microscopy, chemical<br />
composition by infrared spectroscopy and the thermal stability was tested by<br />
thermogravimetric analysis. Applied methods proved that prepared samples have<br />
character <strong>of</strong> particle reinforced composite materials. Results showed that the best<br />
influence on mechanical properties have acetylated starch and gluten, which also<br />
demonstrated the highest thermal stability <strong>of</strong> modified elastomeric polyurethane<br />
samples.<br />
In a pilot study, biodegradation <strong>of</strong> modified polyurethane elastomers by mixed<br />
culture <strong>of</strong> thermophillic bacteria exhibited unusual growth characteristics strongly<br />
dependent on the type <strong>of</strong> biopolymer filler.<br />
Acknowledgement: This work was supported by the Ministry <strong>of</strong> Education,<br />
Youth and Physical Training <strong>of</strong> the Czech Republic under the research project MSM<br />
0021630501.<br />
Keywords: Polyurethane, Elastomers, Biodegradation<br />
.
Section – Polymers & Polymers Composites<br />
Posters<br />
7-P20 Models <strong>of</strong> Organized Supermolecular<br />
Structures: Application to Collagen Fibrils and<br />
Dendrimers<br />
.<br />
Jan Žídek, Jolana Ščudlová, Josef Jančář<br />
Institute <strong>of</strong> Materials Science, Brno University <strong>of</strong> Technology,<br />
Purkynova 118, 61200 Brno, Czech Republic.<br />
zidek@fch.vutbr.cz<br />
This contribution deals with the research on organized supermolecular structures.<br />
These structures are present in many polymeric materials. Mainly in bio-materials,<br />
they cause biological activity.<br />
Collagen fibril and dendrimers are suitable materials for molecular modeling.<br />
Collagen is natural protein with long, fibrous structure. Its fibrils show high elasticity.<br />
This property makes the material useful for certain applications. Dendrimers are<br />
synthetic macromolecules with regular and highly branched architecture. Modeling<br />
<strong>of</strong> their properties can be useful for improvement <strong>of</strong> various molecular models.<br />
The molecular structure <strong>of</strong> collagen fibril and dendrimers was studied by molecular<br />
dynamics simulations. The structures were built in the GROMACS s<strong>of</strong>tware.<br />
Elastic deformation <strong>of</strong> collagen fibril was investigated. It was found, that the fibril<br />
would return spontaneously to the undeformed state. Three reasons <strong>of</strong> elasticity<br />
were analyzed: 1. triple helix structure, 2. intermolecular interaction, and 3. special<br />
geometry <strong>of</strong> side chain groups. In case <strong>of</strong> dendrimers, shape and gyration radii were<br />
calculated from molecular models. Properties <strong>of</strong> these two materials are well described<br />
in literature. Therefore, modeling results can be compared to experimentally<br />
measured properties.<br />
Acknowledgement: The research was supported by Ministry <strong>of</strong> Education under<br />
grant MSM 0021630501.
Appendices<br />
I.1
I.2
Index<br />
A<br />
Abaee, M. S. 4.13, 4.22, 4.23<br />
Abbasi, H. 4.22<br />
Abrudean, M. 3.46<br />
Achimovičová, M. 3.19<br />
Adamechová, Z. 2.7<br />
Ahmadi, S. H. 1.21<br />
Almásiová, B. 1.22<br />
Altangerel, B. 2.21, 2.22<br />
Amberg-Schwab, S. 5.33<br />
Amblès, A. 6.7<br />
Andreeva. E. 1.23<br />
Andrei, S. 2.23, 2.99<br />
Angelovič, M. 1.24<br />
Angelovičová, M. 1.24<br />
Asl, J. D. 1.21<br />
Avdonin, P. 1.8<br />
B<br />
Babák, L. 2.24, 2.25, 2.127<br />
Bajčan, D. 1.109<br />
Bajziková, M. 3.7<br />
Bakajová, B. 6.25<br />
Bakalár, T. 1.102<br />
Baláž, P. 3.45<br />
Bálintová, M. 1.25, 1.51<br />
Baráček, J. 3.6<br />
Barna, D. 2.102<br />
Barošová. M. 2.87<br />
Bartackova, V. 2.26<br />
Bartáková, K. 2.27<br />
Bartoníčková, E. 3.20<br />
Bartoš, J. 40, 7.35<br />
Batelková, P. 2.27<br />
Bednář, P. 4.14, 6.46<br />
Bednáriková, A. 2.37, 2.38<br />
Běláková, S. 2.29, 2.30, 2.31<br />
Belányiová, E. 6.43<br />
Author Index<br />
Bele, C. 1.80, 2.28, 2.42, 2.89, 2.99,<br />
2.110, 2.120<br />
Bella, M. 1.110<br />
Benabbou, K. 5.10<br />
Beňová, L. 6.50, 7.25<br />
Bercea, V. 1.74<br />
Berns, A. E. 4.5<br />
Biris, A. B. 2.28<br />
Biris, A. R. 1.80<br />
Bjelkova, M. 2.76<br />
Bláha, L. 1.5<br />
Blahová, E. 1.100<br />
Bobáľová, J. 2.35, 2.81, 2.82, 2.90, 4.17,<br />
4.18<br />
Boček, P. 1.59<br />
Bogovič Matijašić, B. P.3<br />
Borkovcová, I. 2.27<br />
Bošiak, M. 2.52<br />
Bowie, A. 1.15<br />
Brandštetr, J. 3.5<br />
Brehuv, J. 1.11, 1.26, 1.35, 1.86, 1.87<br />
Breierová, E. 2.5, 2.9, 2.32, 2.39, 2.55<br />
Bretšnajdrová, E. 6.26<br />
Brezová, V. 1.110, 2.15, 5.5, 5.8<br />
Broscăţean, Ş. 1.91<br />
Brulík, L. 1.27<br />
Búgel, M. 1.102<br />
Bui, T.-H. 5.10<br />
Bukovský, V. 3.7<br />
Buňková, R. 2.100<br />
Burauel, P. 4.5<br />
Burdychová, R. 2.25, 2.33, 2.34<br />
Bursáková, P. 6.16, 6.27<br />
Buršíková, V. 6.38<br />
Bušinová, P. 6.28<br />
Butler. E. 1.15<br />
Buzinkay, A. 5.7<br />
Bžatek, T. 6.21<br />
I.
Author Index<br />
C<br />
Cabálková, J. 2.35<br />
Champion, E. 3.48<br />
Chereches-Panta, P. 4.16<br />
Chlpík, J. 1.85, 6.52<br />
Chomoucká, J. 1.103, 1.104, 5.6, 5.9,<br />
5.22, 5.28<br />
Chytil, M. 6.29, 7.19<br />
Ciesarová, Z. 2.6, 2.37, 2.38<br />
Ciglanská, M. 5.12<br />
Cihelník, K. 7.20<br />
Cihlář, J. 3.20, 7.30<br />
Cihlář, Z. 6.27<br />
Clemensová, G. 1.29<br />
Coloşi, T. 3.46<br />
Conte, P. 4.5<br />
Contreras-Acuña, M. 2.54<br />
Cozar, O. 2.63, 2.64<br />
Culea, E. 4.15, 4.16<br />
Culea, M. 2.62, 2.63, 2.64, 4.6, 4.15,<br />
4.16<br />
Cvačka, J. 1.116<br />
Cvengroš, J. 2.11<br />
Cvetković, D.D. 2.101, 2.102, 2.103<br />
Č<br />
Čajka, T. 1.16, 2.36<br />
Čáp, T. 1.5<br />
Čarnecká, M. 2.9, 2.39, 2.55<br />
Čáslavský, J. 1.6, 1.17, 1.28, 1.32, 1.73,<br />
1.100<br />
Častulík, P. P.6, 1.63<br />
Čejková, A. 2.59, 2.79, 2.109<br />
Čelechovská, O. 2.126<br />
Čelko, L. 3.21, 3.29<br />
Čeppan, M. 5.7, 5.12, 5.17, 5.27, 5.31,<br />
5.32, 5.37<br />
Černá, M. 5.29<br />
Černochová, L. 1.30<br />
Čertík, M. 2.7, 2.9, 2.56, 2.67<br />
Čéry, J. 1.94<br />
I.<br />
Čmelík, R. 4.17<br />
Čtvrtníčková, A. 6.5, 6.30<br />
Čuvanová, S. 1.37, 1.115, 4.7<br />
D<br />
Damia, Ch. 3.48<br />
Dankova, M. 2.129<br />
David, J. 7.10, 7.19, 7.27<br />
Debska, B. 1.85<br />
Derco, J. 1.22, 1.30<br />
Dhingra, O. D. 2.68<br />
Dičáková, Z. 2.41<br />
Dítě, P. 2.100<br />
Diviš, P. 1.27, 1.31<br />
Dobrylko, I. 1.8<br />
Dočekal, B. 1.39, 1.68<br />
Dočekalová, H. 1.27, 1.39, 1.68<br />
Dohnal, V. 2.25, 2.33<br />
Doležal, P. 3.29<br />
Doležalová Weissmannová, H. 1.32,<br />
1.33<br />
Dóriová, J. 5.27<br />
Doucek, A. 3.11<br />
Drábová, L. 2.40<br />
Dragoş, N. 1.74<br />
Drastík, M. 6.5<br />
Drbohlavová, J. 5.16, 5.22, 5.28, 5.30<br />
Drobná, B. 2.16<br />
Dudriková, E. 2.41, 2.45<br />
Dulf, E. 3.46<br />
Dulf, E.-H. 6.6<br />
Dulf, F. 2.28, 2.99, 2.120, 6.6<br />
Dulf, F. V. 2.42<br />
Dulp, F. V. 3.14<br />
Dumitrita, R. 2.43<br />
Duroňová, K. 2.44, 2.86, 2.87<br />
Dutková, E. 3.19<br />
Dvonka, V. 5.31, 5.32, 5.37<br />
Dvořák, R. 1.46<br />
Dvořáková, J. 1.7, 2.44<br />
Dvořáková, T. 2.39
Dvoranová, D. 5.5, 5.8<br />
Dyčka, F. 4.18<br />
Dzik, P. 1.103, 5.6, 5.9, 5.18, 5.22, 5.24,<br />
5.28, 5.29, 5.38, 5.40, 6.31<br />
Ď<br />
Ďurovič, M. 6.43<br />
E<br />
Ehrenbergerová, J. 2.71<br />
Ehrenbergerová, V. 2.86<br />
Eliáš, M. 6.38<br />
Endstrasserová, J. 2.125<br />
Erben, M. 7.21<br />
Ermolaeva, E. 1.8<br />
Eštoková, A. 1.34, 1.89, 3.24<br />
F<br />
Faragó, J. 2.124<br />
Faragová, N. 2.124<br />
Fári, M. 2.124<br />
Farkaš, V. 2.48<br />
Fasurová, N. 6.32<br />
Fatrcová-Šrámková, K. 2.45, 2.69<br />
Fedorová, E. 1.11, 1.26, 1.35, 1.86,<br />
1.87<br />
Felšöciová, S. 2.69<br />
Festila, C. 6.6<br />
Feszterová, M. 1.9, 1.36, 1.112<br />
Fiala, M. 3.36<br />
Fikselová, M. 2.69, 2.85<br />
Filka, P. 1.108<br />
Fiľková, I. 3.23<br />
Fišera, M. 2.126<br />
Fišerová, L. 1.67<br />
Flodrová, D. 2.47, 2.48<br />
Fortunová, Ľ. 1.37<br />
Frančáková, H. 2.85<br />
Francu, E. 1.38<br />
Francu, J. 1.38<br />
Frank, V. 3.13, 3.26, 3.43, 6.47<br />
Freirea, M. M. 2.68<br />
Furdíková, K. 6.11<br />
G<br />
Author Index<br />
Gábelová, A. 1.116<br />
Gaberová, L. 1.37<br />
Gago, A. 2.93<br />
Gallios, G. P. 1.88<br />
Garajová, S. 2.47, 2.48<br />
García-Barrera, T. 1.71, 1.72, 2.49,<br />
2.50, 2.51, 2.53, 2.54, 2.93<br />
Gebauer, P. 1.59<br />
Gedeon, O. 3.48<br />
Gemzicka, E. 1.111<br />
Gešperová, D. 3.8<br />
Gilan, A. 6.40<br />
Glashkina, L. 1.8<br />
Golian, J. 2.52, 2.114<br />
Goliáš, J. 2.44<br />
Gómez-Ariza, J. L. 1.10, 1.71, 1.72,<br />
2.49, 2.50, 2.51, 2.53, 2.54, 2.93<br />
Gómez de las Heras, E. 2.53<br />
Goncharov, N. 1.8, 1.79<br />
Gónzalez-Fernández, M. 2.50<br />
Grabner, G. 5.13<br />
Grasset, l. 6.7<br />
Grégr, J. 7.20<br />
Gregušová, M. 1.39<br />
Guillard, C. 5.6, 5.10, 5.11, 5.16, 5.36<br />
H<br />
Haddad, P. 1.15<br />
Hajšlová, J. P.7, 1.16, 1.40, 1.41, 1.54,<br />
1.76, 2.8, 2.14, 2.17, 2.26, 2.36,<br />
2.40, 2.58, 2.71, 2.75, 2.76, 2.78,<br />
2.106, 2.122<br />
Hakenová, M. 1.40<br />
Halasová, T. 6.13<br />
I.
Author Index<br />
Halienová, A. 2.9, 2.39, 2.44, 2.55,<br />
2.88<br />
Hančuľák, J. 1.11, 1.26, 1.35, 1.86,<br />
1.87<br />
Hanus, J. 3.7<br />
Hanusová, V. 2.9<br />
Harazim, J. 1.82, 2.77<br />
Harbuľáková, V. 3.24<br />
Hároniková, A. 2.39<br />
Has, I. 2.89<br />
Havlica, J. 3.5, 3.6, 3.12, 3.31, 3.32,<br />
3.33, 3.34, 3.35, 3.36, 3.37, 3.41,<br />
3.42, 3.43<br />
Havlínová, B. 5.12, 5.31, 5.32, 5.34,<br />
6.42, 6.43, 6.44<br />
Havrlentová, M. 2.56<br />
Ház, A. 2.91, 2.92<br />
Hellingerová, L. 1.114<br />
Hermanová, S. 6.37, 7.5, 7.13, 7.21,<br />
7.28, 7.30<br />
Hermanová. M. 3.26<br />
Herrmann, J.-M. 5.11, 5.16, 5.36<br />
Herzogová, J. 2.115<br />
Hiller, E. 1.105, 1.113<br />
Hilscherová, K. 1.5<br />
Hlaváčková, I. 1.17, 1.73<br />
H<strong>of</strong>erkova, P. 2.33<br />
Hohnová, B. 2.57<br />
Hojerová, J. 2.91, 2.113<br />
Holoubek, I. 1.5<br />
Holubcová, R. 6.14<br />
Holubková, S. 3.7<br />
Honzíček, J. 2.58<br />
Hoza, A. 7.5<br />
Hoza, I. 2.21<br />
Hozlár, P. 2.38<br />
Hradilová, J. 2.73<br />
Hrádková, P. 1.41, 1.76, 2.106<br />
Hrdinová, J. 2.59, 2.79, 2.109<br />
Hrdý, R. 5.30<br />
Hredzák, S. 3.8, 4.9<br />
I.<br />
Hroboňová, K. 6.8<br />
Hroch, M. 1.17, 1.42<br />
Hrstka, M. 2.60, 2.119<br />
Hubálek, J. 5.30<br />
Humhal, F. 1.93<br />
Hynštová, K. 7.6<br />
I<br />
Ifrim, S. 2.89<br />
Ildiko, B. 2.110<br />
Illková, K. 2.61<br />
Iordache, A. 2.62, 2.63, 2.64, 4.6<br />
Iordache. A. 1.91<br />
Ivanová, S. 4.9<br />
J<br />
Jablonovska, K. 2.65<br />
Jablonovská, K. 1.81<br />
Jablonský, M. 3.7, 6.8, 6.9, 6.33, 7.12,<br />
7.34<br />
Jaffrezic-Renault, N. 5.36<br />
Jakabský, Š. 1.88, 1.115, 3.8<br />
Jakubíková, Z. 6.12<br />
Ján, T. 1.96<br />
Jančář, J. 1.108, 2.105, 6.37, 7.6, 7.11,<br />
7.13, 7.15, 7.19, 7.31, 7.33, 7.37,<br />
7.38<br />
Jančík, V. 7.30<br />
Jančovičová, V. 5.7, 5.12, 5.33, 5.34,<br />
6.12<br />
Jankulár, M. 1.43<br />
Jara Biedma, R. 2.51<br />
Jardim, C. M. 2.68<br />
Jarošová, A. 1.82, 2.77<br />
Jašek, O. 6.38<br />
Jašúrek, B. 5.21, 5.35<br />
Jedlička, P. 3.40<br />
Jedlovská, L. 1.112<br />
Jelénková, Z. 2.86<br />
Jenčárová, J. 1.57, 2.66
Ješko, D. 2.67<br />
Jham, G. N. 2.68<br />
Jirkovský, J. 5.13<br />
Jirků, V. 2.59, 2.79, 2.109<br />
Joanta, A. 2.23<br />
Jovancicevic, B. P.10<br />
Jovanovic, L. 1.55<br />
Juliš, M. 3.27<br />
Junák, J. 3.28<br />
K<br />
Kačániová, M. 1.24, 2.45, 2.69<br />
Kačík, F. 1.44<br />
Kačíková, D. 1.44<br />
Kalfus, J. 7.6, 7.11, 7.13<br />
Kaliňák, M. 6.11<br />
Kalvodová, J. 2.108<br />
Kaňuchová Pátková, J. 2.5, 2.32<br />
Kapoun, M. 1.46<br />
Karásek, P. 2.57<br />
Karásková, M. 6.38<br />
Karovičová, J. 2.112, 2.113<br />
Kašiarová, S. 1.9, 1.36<br />
Kassai, A. 1.22<br />
Kastori, R. 1.92<br />
Kaszuba, M. P.8<br />
Katuscak, S. 3.7<br />
Katuščák, S. 2.11, 2.91, 2.92, 6.8, 6.9,<br />
6.50, 7.7, 7.12, 7.34<br />
Kavřík, R. 2.107<br />
Kazíková, J. 6.9<br />
Kelar, L. 6.38<br />
Khan, M. S. A. 7.22<br />
Khlebnikova, N. 1.79<br />
Kikovic, D. 1.55<br />
Kirschnerová, S. 6.9, 7.7, 7.12, 7.34<br />
Kislinger, J. 6.10<br />
Kiss, S. A. 1.92<br />
Kizlink, J. 1.47, 4.19, 4.20<br />
Klakurková, L. 3.29<br />
Klakurková. L. 3.21<br />
Author Index<br />
Klánová, J. 1.5<br />
Klimko, T. 1.43<br />
Klímová, Z. 1.48<br />
Klučáková, M. 6.18, 6.34, 6.35, 6.36<br />
Kňazovická, V. 2.69<br />
Knobloch, J. 5.39<br />
Kočí, R. 2.44, 2.70, 2.87<br />
Kocourek, V. 1.40, 2.40, 2.58<br />
Kohajdová, Z. 2.112, 2.113<br />
Kohoutkova, J. 2.78<br />
Kohoutková, J. 2.71, 2.75<br />
Kolajova, Z. 2.21<br />
Kolářová, J. 2.72, 2.73, 2.74<br />
Kolman, V. 1.49<br />
Konečná, H. 2.55, 2.88<br />
Konupčík, P. 6.38<br />
Koplík, J. 3.43<br />
Koreňovská, M. 2.104<br />
Koryagina, N. 1.79<br />
Kosinková, J. 2.91<br />
Kostelanska, A. 2.78<br />
Kostelanska, M. 2.17<br />
Kostelanská, M. 2.75<br />
Kovačič, J. 7.20<br />
Kováčik, P. 1.50, 1.109<br />
Kováčová, M. 3.30<br />
Kovalczuk, T. P.7<br />
Kovaliková, N. 1.25, 1.51<br />
Kozdas, O. 3.13<br />
Kráčmar, S. 1.13<br />
Kraic, F. 2.12<br />
Kraic, J. 2.56<br />
Krajčírová, A. 2.114<br />
Krajcova, A. 2.76<br />
Kraková, T. 2.10<br />
Králiková, R. 1.52, 1.53<br />
Kramarova, D. 2.21, 2.22<br />
Krascsenits, Z. 1.113<br />
Krátká, L. 1.82, 2.77<br />
Krátký, J. 3.40<br />
Kratochvíla, J. 7.5<br />
Krčma, F. 6.41<br />
I.
Author Index<br />
Krejčová, H. 3.35<br />
Kristýna, U. 1.70<br />
Krivenko, P. P.4<br />
Křížová, J. 6.19<br />
Krouská, J. 6.29<br />
Kroutil, O. 6.37<br />
Krplova, A. 2.17, 2.78<br />
Krplová, A. 1.54, 2.71, 2.75<br />
Krulikovská, T. 2.59, 2.79, 2.109<br />
Kružlicová, D. 2.12, 2.80<br />
Krýsa, J. 5.14, 5.23<br />
Kubala, L. 2.100<br />
Kubátová, D. 3.12, 3.31<br />
Kubíčková, K. 1.101<br />
Kubincová, L. 1.34<br />
Kučera, F. 7.8, 7.23<br />
Kučera, J. 7.9, 7.32<br />
Kučerík, J. 2.117, 6.5, 6.10, 6.16, 6.25,<br />
6.27, 6.30, 6.34, 7.19<br />
Küchler, S. P.9<br />
Kukurová, K. 2.37, 2.38<br />
Kulacs, P. 2.123<br />
Kulilová, P. 6.29<br />
Kupka, D. 1.99, 3.10<br />
Kušnierová, M. 1.37, 1.56, 1.58<br />
L<br />
Lacina, O. 1.40, 1.54, 2.71, 2.122<br />
Lacombe, S. 5.10<br />
Lahučký, L. 1.94<br />
Lalevic, B. 1.55<br />
Lána, R. 1.13, 1.17, 1.38<br />
Lancová, K. 2.71<br />
Langová, L. 1.101<br />
Lankmayr, E. 2.80, 2.94<br />
Lansky, M. 2.122<br />
Laštovičková, M. 2.81, 2.82, 4.18<br />
Lauková, A. 1.116<br />
Laurová, M. 1.44<br />
Lazar, L. 6.38<br />
Lazor, P. 1.96<br />
I.<br />
Lehene, C. 2.62<br />
Lehkoživová, J. 2.113<br />
Lehotay, J. 6.8<br />
Lejeune, P. 5.10<br />
Lerche, D. P.9<br />
Letko, M. 4.10, 7.25<br />
Libardoni, M. P.7<br />
Lipenská, M. 1.104<br />
Liptaiová, D. 1.24<br />
Lojek, A. 2.100<br />
López-Barea, J. 2.50<br />
Loupancová, B. 2.127<br />
Lovas, M. 6.48<br />
Lovás, M. 1.115, 3.8, 3.30, 4.7<br />
Luptáková, A. 1.56, 1.57, 1.58, 2.66,<br />
3.24<br />
Lupu, D. 1.80, 2.28<br />
Luster, J. 1.85<br />
M<br />
Macák, M. 1.85<br />
Mach, V. 6.31<br />
Macharáčková, B. 2.126<br />
Machát, J. 1.5, 1.27, 1.98<br />
Mačingová, E. 1.57<br />
Macků, I. 2.127<br />
Mácová, D. 1.6, 1.28<br />
Macuchová, S. 2.29, 2.30, 2.31, 2.84<br />
Majzlík, P. 6.14, 6.39<br />
Malá, Z. 1.59<br />
Malenovská, M. 6.18<br />
Malyszová, J. 2.77<br />
Man, O. 3.29<br />
Manso, J. M. 1.71<br />
Marcu, A. 3.39<br />
Mareček, J. 2.85<br />
Mareš, J. 1.100<br />
Máriássyová, M. 2.45<br />
Marková, J. 2.71<br />
Marković, D. 1.60
Márová, I. 2.9, 2.39, 2.44, 2.55, 2.70,<br />
2.84, 2.87, 2.88, 2.100, 7.10, 7.26,<br />
7.27, 7.37<br />
Márová, i. 2.86<br />
Maršálek, B. 6.19<br />
Marták, J. 7.25<br />
Martincová, J. V. 1.61<br />
Marušicová, B. 6.44<br />
Masák, J. 2.59, 2.79, 2.109<br />
Mašek, I. 1.7, 1.23, 1.61, 1.63, 1.64,<br />
1.65<br />
Másilko, J. 3.41<br />
Mášová, M. 1.100<br />
Mastihuba, V. 2.10<br />
Mastihubová, M. 2.10<br />
Matalová, S. 2.97, 2.105<br />
Matea, C. T. 2.89<br />
Matik, M. 3.30<br />
Matoušek, J. 1.14, 1.66<br />
Matulová, D. 2.108<br />
Maxová, M. 2.117<br />
Mazanec, K. 2.90<br />
Mazur, M. 6.11<br />
Melušová, S. 7.26<br />
Merna, J. 7.21<br />
Mesaros, C. 4.6, 4.15<br />
Mesbah, A. W. 4.13<br />
Mihăiescu, R. 1.75<br />
Mihăiescu. T. 1.75<br />
Mika, O. 1.63<br />
Mika, O. J. 1.67<br />
Mikula, M. 5.17, 6.12, 6.40<br />
Mikulášik, R. 2.11, 2.91<br />
Mikulášik. R. 2.92<br />
Mikulíková, R. 2.29, 2.30, 2.31, 2.84,<br />
2.88<br />
Milata, V. 1.110, 2.11<br />
Miljkovic, B.<br />
Mindukshev, I. 1.8<br />
Minea, R. 2.62<br />
Mirzaei, M. 4.23<br />
Mládková, Z. 1.68<br />
Author Index<br />
Mocák, J. 2.12, 2.80, 2.94<br />
Močár, K. 1.24<br />
Mockovčiaková, A. 3.9, 3.19<br />
Mojtahedi, M. M. 4.22<br />
Mojtahedi. M. M. 4.13<br />
Momeu, C. 2.43<br />
Moos, M. 1.69, 1.70, 1.97<br />
Moreno, F. 1.71, 1.72, 2.93<br />
Mravcová, L. 1.6, 1.73, 1.84, 1.106,<br />
7.19<br />
Mravec, F. 6.13<br />
Mrázová, V. 2.12, 2.94<br />
Müller, L. 2.70<br />
Muller, P. 1.38<br />
Muntean, E. 1.74, 1.75<br />
Muntean, N. 1.74, 1.75<br />
Munteanu, M. F. 2.95<br />
Musilová, J. 1.94<br />
N<br />
Nápravníková, M. 1.41, 1.76, 2.106<br />
Narres, H.-D. 4.5<br />
Navrátil, J. 7.24<br />
Nemcová, K. 2.32<br />
Němec, K. 3.29<br />
Németh, L. 2.7<br />
Nešpůrek, S. 7.14, 7.24, 7.28<br />
Nesterenko, P. 1.15<br />
Nezbedová, E. 7.36<br />
Niksic, M. 1.55<br />
Noaman, M. S. M. 3.47<br />
Noskovič, J. 1.50<br />
Novák, F. 6.10<br />
Novák, J. 1.65<br />
Nováková, E. 4.10, 7.25<br />
Novotný, M. 7.27, 7.37<br />
Nôžková, J. 2.45, 2.69<br />
O<br />
Obruča, S. 7.10, 7.26, 7.27, 7.37<br />
Ohlidalová, M. 6.44<br />
I.
Author Index<br />
Omelka, L. 6.14, 6.39<br />
Omelková, J. 2.47, 2.61, 2.96, 2.97,<br />
2.105<br />
Ondruška, V. 7.10<br />
Opravil, T. 3.5, 3.12, 3.32, 3.33, 3.34,<br />
3.35, 3.36, 3.41, 3.42<br />
Orolínová, Z. 3.9, 3.10<br />
Ošmera, P. 6.15<br />
Ouzzane, I. 7.28<br />
P<br />
Pajurková, J. 6.41<br />
Pállová, Z. 3.10<br />
Palou, M. 3.47<br />
Panák, J. 5.31, 5.32<br />
Pařilová, K. 2.44, 2.55, 2.88<br />
Pauliková, A. 1.53<br />
Paulíková, A. 1.52<br />
Paulusová, H. 6.42<br />
Păun. N. 1.91<br />
Pavlisová, D. 5.27<br />
Pečinková, D. 2.73<br />
Pekař, M. 6.13, 6.28, 6.29, 6.34, 7.19<br />
Péruchon, L. 5.16<br />
Pesenjanski, I.<br />
Pešková, K. 1.68<br />
Peterka, F. 5.15<br />
Petriláková, K. 7.12, 7.34<br />
Petrovičová, M. 5.34, 6.42, 6.43, 6.44<br />
Piechová, J. 7.27, 7.37<br />
Pigeot-Remy, S. 5.10<br />
Pigot, T. 5.10<br />
Pilný, O. 6.36<br />
Pintea, A. 2.23, 2.28, 2.42, 2.99, 2.120,<br />
4.16<br />
Pleskačová, H. 1.84<br />
Pobudová, Z. 6.40<br />
Podborská, M. 2.100<br />
Podunavac-Kuzmanović, S. 2.102<br />
Podunavac-Kuzmanović, S. O. 2.101,<br />
2.103<br />
I.10<br />
Polívka, L. 2.123<br />
Polívka, Ľ. 1.77<br />
Polovka, M. 2.11, 2.13, 2.104, 2.118<br />
Polovka¨, M. 2.125<br />
Popelkova, M. 2.129<br />
Pospíšilová, Ľ. 6.32<br />
Pospíšilová, S. 3.27<br />
Poustka, J. 1.41, 1.54, 1.76, 2.17, 2.75,<br />
2.106<br />
Považanec, F. 6.9<br />
Přikryl, R. 7.29<br />
Princz, E. 1.92<br />
Prokeš, O. 1.93, 3.11<br />
Prónayová, N. 6.11<br />
Prudíková, I. 2.105<br />
Průšová, A. 6.16<br />
Ptáček, P. 3.6, 3.12, 3.31, 3.32, 3.33,<br />
3.34, 3.35, 3.36, 3.37, 3.41, 3.42,<br />
3.43<br />
Pueyo, C. 2.50<br />
Pulkrabova, J. 2.14<br />
Pulkrabová, J. 1.41, 1.76, 2.106<br />
Puzenat, E. 5.6, 5.11, 5.16, 5.36<br />
R<br />
Radilov, A. 1.8, 1.79<br />
Rădulescu, H. 1.92<br />
Raica, P. 3.46<br />
Raicevic, V. 1.55<br />
Rapta, P. 6.17, 6.39<br />
Recman, L. 7.11<br />
Reháková, M. 1.37, 5.7, 5.17, 5.27,<br />
5.32, 5.37<br />
Reinprecht, L. 4.19<br />
Rembovskiy, V. 1.8<br />
Remenárová, K. 5.21<br />
Richtera, L. 6.37, 7.30<br />
Ricking, M. 1.38<br />
Riddellova, K. 2.26, 2.36<br />
Rittich, B. 2.115, 2.116, 2.121<br />
Rogelj, I. P.3
Rolník, M. 7.31<br />
Rop, O. 2.21<br />
Rosická, Z. 1.64<br />
Ruprich, J. 2.72, 2.73, 2.74, 2.107,<br />
2.108<br />
Rusu, D. 3.39<br />
Rusu, M. 3.39<br />
Rutteová, A. 3.37<br />
Rychlý, J. 3.7<br />
Rýznarová, B. 7.9<br />
Ř<br />
Řeháková, J. 2.107, 2.108<br />
Řehůřková, I. 2.72, 2.73, 2.74, 2.107,<br />
2.108<br />
Řezníček, V. 2.125<br />
S<br />
Sadílek, J. 7.9, 7.32<br />
Saláková, S. 2.72, 2.73, 2.74<br />
Salyk, O. 5.24, 6.20, 6.46, 6.47<br />
Santos, J. H. 1.78<br />
Sarlea, M. M. 2.23<br />
Savelieva, E. 1.79<br />
Schreiberová, O. 2.59, 2.79, 2.109<br />
Schulzova, V. 2.76<br />
Schurek, J. 2.14, 2.122<br />
Schůrek, J. P.7, 1.16<br />
Schwarzbauer, J. P.5, 1.38<br />
Sedláček, P. 6.18<br />
Sharifi, A. 4.23<br />
Sharifi, R. 4.13<br />
Simon, S. 1.80<br />
Sisol, M. 1.102<br />
Skláršová, B. 2.16<br />
Skybova, M. 6.48<br />
Sladkova, P. 2.33<br />
Slančo, P. 1.11, 1.26<br />
Slánská, P. 7.23<br />
Sloviková, A. 7.33<br />
Author Index<br />
Snopkova, V. 1.99<br />
Snopková, V. 1.81<br />
Sobisch, T P.9<br />
Socaciu, C. 2.42, 2.43, 6.51<br />
Sommer, L. 1.69, 1.70, 1.97, 1.98,<br />
1.107<br />
Soran, M.-L. 2.110<br />
Stančík, J. 5.18, 5.38, 5.40<br />
Stancová, V. 1.82, 2.77<br />
Staněk, T. 3.6, 3.38<br />
Stanila, A. 3.39<br />
Stará, Z. 6.41<br />
Staško, A. 2.15<br />
Stefanovits-Bányai, É. 1.92<br />
Stejkora, J. 6.47<br />
Stepanov, B.<br />
Stopka, P. 1.89, 6.19<br />
Stoudkova, H. 2.130<br />
Stoupalová, M. 1.73, 1.84<br />
Stratilová, E. 2.47, 2.48<br />
Suchanová, M. 2.40<br />
Suchý, P. 1.82<br />
Suhaj, M. 2.13, 2.104<br />
Sulovský, P. 3.38<br />
Superatová, R. 6.14<br />
Surducan, E. 2.110<br />
Surducan, V. 2.110<br />
Svačina, Z. 7.21<br />
Svěrák, T. 3.13<br />
Světlík, J. 6.39<br />
Svoboda, J. 5.39<br />
Svoboda, L. 6.26<br />
Svoboda, Z. 2.29, 2.30, 2.31, 7.26<br />
Svobodová, D. 1.76<br />
Synek, P. 6.38<br />
Syrový, T. 5.21, 5.35<br />
Szitás, A. 6.9<br />
Szkandera, R. 1.31<br />
Szombathová, N. 1.85, 6.52<br />
I.11
Author Index<br />
Š<br />
Ščudlová, J. 7.38<br />
Šepelák, V. 1.58, 3.10, 3.30<br />
Šestinová, O. 1.11, 1.26, 1.35, 1.86,<br />
1.87<br />
Ševčíková, A. 2.100<br />
Šiler, P. 3.40<br />
Šima, J. 6.52<br />
Šimanský, V. 1.85, 1.95<br />
Šimko, P. 2.16<br />
Šimkovic, I. 2.97<br />
Šimon, P. 2.16, 2.92<br />
Šimonová, I. 2.112, 2.113<br />
Šindelář, V. 1.49, 4.24, 7.22<br />
Šiška, B. 2.52, 2.114<br />
Škarpa, P. 1.68<br />
Šlebodová, A. 2.15<br />
Šnirc, V. 6.17<br />
Šnuderl, K. 2.94<br />
Šopíková, M. 2.82<br />
Šoukal, F. 3.5, 3.6, 3.12, 3.32, 3.33,<br />
3.34, 3.35, 3.36, 3.41, 3.42, 3.43<br />
Špaldon, T. 1.11, 1.26, 1.35, 1.86, 1.87<br />
Španová, A. 2.115, 2.116, 2.121<br />
Štancl, M. 4.24<br />
Šťavíková, L. 2.118, 2.119<br />
Štefušová, K. 1.88<br />
Štekner, B. 7.20<br />
Štenclová, D. 1.100<br />
Števulová, N. 1.34, 1.89, 3.23, 3.24,<br />
3.28<br />
Št<strong>of</strong>an, D. 1.24<br />
Štolc, S. 6.17<br />
Štoudková, H. 2.117, 2.127<br />
Štyriaková, I. 1.90, 1.99, 2.65<br />
Šubrt, J. 5.20<br />
Šupinová, L. 1.103<br />
Šurina, I. 2.11, 2.91<br />
Šutriepka, M. 1.43<br />
Šutý, Š. 6.33, 7.12, 7.34<br />
Švajdlenková, H. 7.35<br />
I.12<br />
Švehla, B. 6.33<br />
T<br />
Tamaian, R. 1.91<br />
Taubert, L. 1.92<br />
Tenkrát, D. 1.93, 3.11<br />
Terpáková, E. 3.44<br />
Tiňo, R. 6.50, 7.25<br />
Tobiašová, E. 1.85, 1.95, 6.52<br />
Tobiášová, T. 1.28<br />
Tocháček, J. 7.13<br />
Toma, C. 2.95<br />
Toma, C.-C. 2.120<br />
Toman, P. 7.24<br />
Toman, R. 2.52, 2.114<br />
Tomancová, L. 3.38<br />
Tomáš, J. 1.94, 1.109<br />
Tomková, M. 2.87<br />
Tóth, T. 1.95, 1.96<br />
Trachtová, S. 2.121<br />
Trčková, M. 2.70<br />
Tremlová, B. 1.17<br />
Tria, J. 1.15<br />
Trif. M. 6.51<br />
Trna, J. 2.100<br />
Tudoran, C. 2.110<br />
Tuhovčáková, L. 1.32<br />
Turčániová, Ľ. 1.116<br />
Turianicová, E. 3.45<br />
Tycová, M. 2.116<br />
U<br />
Uhl, A. P.9<br />
Ungureşan, M. L. 2.42, 3.14, 3.46<br />
Urban, U. 2.60<br />
Urbánková, K. 1.97, 1.98<br />
Urbanova, J. 2.122<br />
Urbanová, J. 1.40, 1.54<br />
Ürgeová, E. 1.77, 2.123, 2.124
V<br />
Vaclavik, L. 2.17, 2.26<br />
Václavík, L. 1.16, 1.54<br />
Václavíková, M. 1.88<br />
Vaculík, M. 1.43<br />
Vadkertiová, R. 2.128<br />
Vajciková, I. 2.5, 2.32<br />
Vala, M. 4.14, 6.20, 6.21, 7.14, 7.24<br />
Valaseková, A. 6.12<br />
Valeš, M. 7.20<br />
Vališ, J. 5.21, 5.35<br />
Valko, M. 5.8, 6.11<br />
Válková, d. 6.7<br />
Valovičová, Z. 1.116<br />
Vašková, A. 1.90, 1.99, 3.10<br />
Vávrová, M. 1.6, 1.13, 1.17, 1.23, 1.32,<br />
1.42, 1.73, 1.84, 1.100, 1.101,<br />
1.106, 1.114, 7.19<br />
Večerek, V. 1.13, 1.42, 1.84, 1.101<br />
Veerecken, H. 4.5<br />
Veleba, O. 3.40<br />
Velebný, V. 6.13<br />
Vereš, J. 1.102<br />
Veselá, M. 1.103, 1.104, 5.22, 5.28<br />
Veselská, V. 1.105<br />
Veselý, M. 1.103, 1.104, 5.6, 5.9, 5.18,<br />
5.22, 5.24, 5.28, 5.29, 5.38, 5.40,<br />
6.31<br />
Veselý, P. 7.36<br />
Vespalcová, M. 2.57, 2.125<br />
Vicas, S. 2.43<br />
Vinter, V. 3.42<br />
Vítečková, H. 1.73, 1.106<br />
Vitkovič, M. 3.47<br />
Vitoulová, E. 2.126<br />
Vítová, E. 2.127, 2.129, 2.130<br />
Vizárová, K. 6.9, 7.7, 7.12, 7.34<br />
Vlach, B. 7.36<br />
Vlase, L. 2.95<br />
Vlčková, B. 2.61<br />
Vlčková, Z. 6.25, 6.27<br />
Author Index<br />
Vojta, Š. 1.107<br />
Vojtiskova, P. 2.22<br />
Vojtová, L. 1.108, 7.10, 7.19, 7.27, 7.33,<br />
7.37<br />
Vollmannová, A. 1.50, 1.96, 1.109<br />
Vondráčková, H. 2.87<br />
Vorlová, L. 2.27<br />
Vorozhtsova, M. 5.30<br />
Vránová, D. 2.125, 2.128<br />
Vrecková, Z. 1.110, 5.5, 5.8<br />
Vremeră, R. 1.91<br />
Vršecký, M. 3.32<br />
Vrška, M. 1.111, 4.10<br />
Vydrová, L. 1.106<br />
Vyňuchal, J. 6.46, 6.47<br />
W<br />
Ward, S. G. 1.78<br />
Weidlich, T. 5.21, 5.35<br />
Weiter, M. 4.14, 6.20, 6.21, 7.14, 7.24,<br />
7.28<br />
Y<br />
Youssef, C. 5.36<br />
Z<br />
Zachariasova, M. 2.17, 2.78<br />
Zachariášová, M. 2.75<br />
Zachová, L. 2.60<br />
Zajíčková, L. 6.38<br />
Zakova, Z. 2.76<br />
Zalibera, M. 6.17<br />
Zamazalová, P. 3.48<br />
Zamiri, B. 4.23<br />
Zaujec, A. 1.85, 1.112, 6.52<br />
Zdeňková, M. 2.128<br />
Zdráhal, Z. 2.55, 2.88<br />
Zechmiestrová, L. 2.96<br />
Zelenka, J. 6.26<br />
Zemanova, J. 2.129, 2.130<br />
I.1
Author Index<br />
Zemanová, J. 2.117, 2.127<br />
Zemanová, L. 1.113<br />
Zita, J. 5.23<br />
Zlámalová Gargošová, H. 1.33, 1.101,<br />
1.114<br />
Zmeškal, O. 4.14, 5.24, 6.20, 6.21,<br />
6.46, 7.24<br />
Zmrzlý, M. 3.49<br />
I.1<br />
Znamenáčová, I. 1.115<br />
Zrostlíková, J. P.7<br />
Zubrik, A. 1.116<br />
Zvezdanović, J. 1.60<br />
Ž<br />
Ždánská, P. 2.86<br />
Žídek, J. 7.15, 7.31, 7.38<br />
Žúbor, V. 6.11
Commercial presentations<br />
Commercial Presentations<br />
I.1
Commercial Presentations<br />
I.1<br />
Specialisté Specialist v oboru FTIR spektrometrie<br />
Nicolet CZ s.r.o., Klapálkova 2242/9, 149 00 Praha 4<br />
Tel/Fax: 272 760 432, 272 768 569, 272 773 56-7<br />
Mobil: 602 325 829, 603 554 788<br />
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FTIR TRIBODIAGNOSTIKA<br />
FTIR TRIBODIAGNOSTIKA<br />
obsah zušlechujících písad,<br />
paliva, glykolu, vody,<br />
oxidaních, nitrataních<br />
a sulfataních produkt,<br />
aromát, sazí v použitých<br />
olejích z jednoho mení<br />
tvorba zákaznických metod<br />
a automatizace<br />
analýza erstvých olej<br />
univerzálnost použití<br />
STANOVENÍ STANOVEN NEL A EL<br />
stanovení NEL a EL ve vodách<br />
a pdách i plynech dle SN,<br />
DIN a vlastních kalibrací<br />
identifikace ropného zneištní<br />
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databáze extrakt<br />
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ANALYZÁTORY<br />
ANALYZ TORY<br />
výfukových a kouových plyn<br />
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mléka a jiných potravin<br />
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anorganic-kých syntéz)<br />
polovodiových desek<br />
vrstevnatých materiál
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Akciová společnost Brněnské vodárny a kanalizace byla<br />
založena v roce 1992 a svojí činností navázala na dobré<br />
výsledky svých předchůdců. Od roku 1872, kdy byla<br />
uvedena do provozu úpravna vody v Brně-Pisárkách, již<br />
několik generací vodohospodářů zajišťuje pro obyvatele<br />
města Brna a jeho okolí pitnou vodu.<br />
Hlavní činností společnosti je provozování vodovodů a kana-<br />
lizací, výroba a dodávka pitné vody včetně náhradního<br />
zásobování, vyhledávání poruch na vodovodní síti, vytyčování<br />
vodovodů a kanalizací a revize kanalizací pomocí televizní<br />
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a dešťových vod, jejich čištění v čistírně odpadních vod<br />
Brno-Modřice včetně likvidace kalů. Laboratořemi<br />
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Investorská a projekční činnost je zaměřena na přípravu<br />
a realizaci inženýrských a průmyslových staveb v oboru<br />
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Všechny činnosti akciové společnosti jsou nezbytné<br />
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na celém území města Brna, ale zabezpečuje vodárenské<br />
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„VODA - TO JE ŽIVOT“<br />
Tel.: 543 433 111 Fax: 543 433 000<br />
E-mail: bvk@bvk.cz<br />
www.bvk.cz
Particle, rheological and chemical composition data<br />
for materials characterization<br />
Malvern ® Instruments is a global company that develops, manufactures and markets<br />
advanced analytical systems used in characterizing a wide variety <strong>of</strong> materials, from<br />
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Particle Size<br />
Particle Shape<br />
Zeta Potential<br />
Molecular Weight<br />
Rheology<br />
Chemical Imaging<br />
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Kováků 26, 150 00 Praha 5, Tel.: 257 31 93 48<br />
sales@anamet.cz, www.anamet.cz<br />
ZetaNano sizer<br />
I.1
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I.20<br />
15.–19. 9. 2008<br />
Brno – Výstaviště<br />
Registrace návštěvníků<br />
od 15. 8. 2008 na<br />
www.bvv.cz/msv<br />
17.–18. 9., pavilon Brno<br />
50. mezinárodní<br />
strojírenský<br />
veletrh<br />
8 8<br />
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• German Days 2008, 15.–18. 9.<br />
• Národní den Slovenské republiky, 16. 9.<br />
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• Vize v automatizaci V, 16. 9.<br />
• CzechTrade Meeting Point, 17.–18. 9.<br />
kompletní program konferencí a seminářů naleznete na www.bvv.cz/msv<br />
6. mezinárodní<br />
veletrh obráběcích<br />
a tvářecích strojů<br />
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Výstaviště 1<br />
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imt@bvv.cz<br />
www.bvv.cz/msv<br />
www.bvv.cz/imt
Čisté chemikálie<br />
pro laboratoř<br />
a průmysl<br />
Commercial Presentations<br />
Na www.sigmaaldrich.com zvolte ČR nebo Slovensko<br />
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• více než 200 000 produktů online<br />
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11786--SIGMA--inz-a5-chemistry.indd 1 31.7.2008 11:28:38<br />
I.21
Commercial Presentations<br />
I.22<br />
Verkon s.r.o. - kompletní vybavení laboratoí<br />
Spolenost Verkon s.r.o. se orientuje na dodávky do laboratoí již<br />
12 let. Za tuto dobu si vybudovala postavení stabilní firmy na trhu<br />
s laboratorním vybavením a stala se partnerem pro zákazníky napí<br />
eskou republikou.<br />
Cíl spolenosti, uspokojit zákazníka kvalitními službami, vedl<br />
k postupnému rozšíení portfolia výrobk od dodávek spotebního<br />
materiálu až po dodávky investiní. V souasné dob tvoí základnu<br />
cca 15000 položek. Tyto dispozice a stabilita zajišují kompletní<br />
pokrytí standardních požadavk zákazníka.<br />
Chemikálie PA, isté, technické Pece a sušárny<br />
Laboratorní sklo, porcelán Sterilizátory a inkubátory<br />
Laboratorní plasty Optika, mikroskopy<br />
Laboratorní pomcky Analyzátory plyn<br />
Teplomry a hustomry Meteorologické pístroje<br />
Filtrace a dávkování Destilaní pístroje<br />
Laboratorní váhy Vakuová technika<br />
Lázn a termostaty Ultrazvukové istiky<br />
Míchaky a tepaky<br />
PH,oxi,konduktometry<br />
Fotometry a turbidimetry<br />
Ochranné pomcky<br />
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Laboratorní nábytek<br />
Brno<br />
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Praha<br />
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SN EN ISO 9001-2001
Commercial Presentations<br />
I.2
4 th Meeting<br />
on Chemistry and Life<br />
<strong>Book</strong> <strong>of</strong> Abstracts<br />
Editor: Ing. Petr Dzik, Ph.D.<br />
Issued and printed by: Brno Univerzity <strong>of</strong> Technology,<br />
Faculty <strong>of</strong> Chemistry<br />
Brno 2008<br />
ISBN 978-80-214-3715-9