10th Symposium on the Flora of Southeastern Serbia and ...
10th Symposium on the Flora of Southeastern Serbia and ...
10th Symposium on the Flora of Southeastern Serbia and ...
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10 th <str<strong>on</strong>g>Symposium</str<strong>on</strong>g> <strong>on</strong> <strong>the</strong> <strong>Flora</strong> <strong>of</strong> Sou<strong>the</strong>astern <strong>Serbia</strong> <strong>and</strong> Neighbouring regi<strong>on</strong>s,Vlasina 17 to 20 June 2010Antioxidant activity <strong>of</strong> Satureja kitaibelii Wierzb. ex Heuff.,LamiaceaeSavić, I. 1 , Banjac, Lj. 2 , J. Kukić-Marković, T 2 . Kundaković, S. 2 , Zlatković,G. 3 , Nikolić 1 , Savić, I. 11 Faculty <strong>of</strong> Technology Leskovac, University <strong>of</strong> Niš, <strong>Serbia</strong>2 Institut za Farmakognoziju, Farmaceutski fakultet, Vojvode Stepe 450,Beograd 11000, Srbija3 Actavis Trading Ltd., Đorđa Stanojevića 12, Novi Beograd 11070, Srbijaici_teh@yahoo.comThe aerial parts <strong>of</strong> Satureja kitaibelii were used in serbian traditi<strong>on</strong>almedicine as herbal remedy for respiratory, digestive <strong>and</strong> urinary tract diseases, aswell for inflammati<strong>on</strong> <strong>of</strong> skin <strong>and</strong> mucous membranes. The plant material wascollected in July 2008 <strong>on</strong> mountain Rtanj (<strong>Serbia</strong>) <strong>and</strong> extracted with cyclohexane<strong>and</strong> 70% methanol (V/V). DPPH radical scavenging activity <strong>and</strong> inhibitory effect <strong>of</strong>MeOH extract <strong>on</strong> lipid peroxidati<strong>on</strong> (LP) in liposomes <strong>of</strong> methanol extract weremeasured according to <strong>the</strong> modified methods described previously by Kundaković etal. (2006) <strong>and</strong> Kukić et al. (2006). Fifty percent <strong>of</strong> radical scavenging activity inDPPH test was obtained with 34,5 ± 2,1 μg/ml <strong>of</strong> methanol extract, while IC50 <strong>of</strong>LP inhibiti<strong>on</strong> in liposomes was 204 ± 2,99 μg/ml.Komparacija stabilnosti flav<strong>on</strong>ola i flav<strong>on</strong>a prema dejstvuUV-zračenja: slučaj kvercetina, morina i rutinaZvezdanović, J. 1 , Marković, D. 1 , Radovanović, B. 21 Faculty <strong>of</strong> Technology Leskovac, University <strong>of</strong> Niš, <strong>Serbia</strong>2 Faculty <strong>of</strong> Science <strong>and</strong> Ma<strong>the</strong>matics, <strong>Serbia</strong>dejan_markovic57@yahoo.comKomparacija stabilnosti flav<strong>on</strong>ola i flav<strong>on</strong>a prema dejstvu UV-zračenja:slučaj kvercetina, morina i rutina Jelena Zvezdanović1, Dejan Marković1, BlagaRadovanović2 1Tehnološki fakultet, Leskovac 2Prirodno-matematički fakultet, Niš,Odsek za hemiju Flav<strong>on</strong>oidi čine veliku klasu prirodnih polifenolnih jedinjenja malemolekulske mase i široko su rasprostranjeni u biljnom svetu. Najviše ih ima ulistovima, semenu, kori i cvetovima biljaka, a do sada je izolovano više od 4,000različitih flav<strong>on</strong>oida. Nađeno je da se ova jedinjenja u biološkim sistemima mogup<strong>on</strong>ašati kao antioksidansi, enzimski inhibitori, fotosenzibilizatori, prenosioci88
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