10th Symposium on the Flora of Southeastern Serbia and ...

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10 th <strong>Symposium</strong> on the Flora of Southeastern Serbia and Neighbouring regions,Vlasina 17 to 20 June 2010Antimicrobial and antioxidant activity of Alnus glutinosa(L.) Gaertn., A. incana (L.) Moench and A. viridis (Chaix)DC. ExtractsDudević, S., Vidic, D., Maksimović, M., Parić, A.Prirodno-matematički fakultet, Sarajevo, Bosna i Hercegovinasabina_dudevic@yahoo.comThis study was undertaken in order to evaluate antimicrobial and antioxidantactivity of three Alnus species. Methanol and water extracts obtained from dryleaves and bark of the plants was screened against six Gram-negative and Grampositivebacteria as well as two fungal strains using disc diffusion method. Allextracts of three Alnus species showed high antibacterial activity against Escherichiacoli. Methanolic extract of leaves of A. viridis was the only one that showedsignificant antibacterial activity against all six bacterial species (Bacillus subtilis,Staphylococcus aureus, Micrococcus luteus, Escherichia coli, Pseudomonasaeruginosa, Salmonella abony) including antifungal activity against Candidaalbicans and Aspergillus brasiliensis. Antioxidant activity of methanolic extractswas determined by 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging test.All samples showed activity higher than thymol, which was used as a positive probe.Leaf Aroma Volatiles of Some Representatives of theCinnamomum Genus are cultivated in Hothouse Conditionsof BelarusHetka, N. 1 , Subach, V. 2 , Rogovoy, P. 31 Central Botanical Gardens of the National Academy of Sciences ofBelarus, Minsk, Belarus2 Food Research fnd Engineering Center, National Academy of Sciences ofBelarus, Belarus, 29 Kozlov St.,220037 Minsk, Belarus3 The Central Botanical Gardens of National Academy of Sciences ofBelarus, Belarus, 29 Kozlov St.,220037 Minsk, Belarushetko@list.ruAnalysis of dried leaf aroma volatiles of the Cinnamomum camfora, C.glanduliferum and C. tamala was undertaken by using of a Hewlett Packard gaschromatograph Model 5090. As things turnd out species differed in percentageproportions of the camphor, eugenol, limonene, pinene, linalool and others.94
10 th <strong>Symposium</strong> on the Flora of Southeastern Serbia and Neighbouring regions,Vlasina 17 to 20 June 2010Percentage proportion of camphor in leaves of these plants may be significantchemosystematic delineation.Health properties of extracts of two wild garlic taxa(Alliumvineale, Alliaceae)Bozin, B. 1 , Lakic, N. 1 , Samojlik, I. 2 , Mimica-Dukic, N 3 , Igic, R. 4 , Anackov,G. 41 Medicinski fakultet, Katedra za farmaciju, Novi Sad, Srbija2 Department of Pharmacology and Toxicology, Faculty of Medicine, HajdukVeljkova 3, University of Novi Sad, 21000 Novi Sad, Serbia3 Department of Chemistry, Faculty of Sciences, Trg D. Obradovica 3University of Novi Sad, 21 000 Novi Sad, Serbia4 University of Novi Sad, Faculty of Sciences, Department of Biology andEcology, Serbianedalakic@yahoo.comAlthough the health benefits of different garlic preparations (Allium sativum,Alliaceae) are well documented, there is very few data on chemistry and healthpropreties of different taxa of wild garlic, A. vineale. With respect to this, in thepresent study wide array of biological and pharmacological properties of twovarieties of A. vineale (A. vineale subsp. vineale and A. vineale subsp. compactum)comparing to A. sativum extracts are presented. Antioxidant activity was evaluatedas free radical-scavenging capacity (RSC), together with the effect on lipidperoxidation (LP). RSC was assessed by measuring the scavenging activity of garlicextracts on 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical and hydrogen peroxide.Effects on LP were evaluated by following the activities of examined garlic extractsin Fe2+/ascorbate and Fe2+/H2O2 systems of induction. Antimicrobial activity wastested against several bacterial strains and fungi. Furthermore, the influence of examined extracts on gut microflora was evaluated. Furthermore, the effects of theextracts on different liver enzymes after intoxication with carbon tetrachloride wereassayed. In all of the examined model systems extrats of A. vineale exhibitedstronger antioxidant effects comparing to garlic. Similar results were obtained forantimicrobial activities and effects on gut microflora. In vivo investigation pointedon similar protective activity of both investigated species.95
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