پديد آورنده :
آزمون، بهناز
عنوان :
ارزيابي ظرفيت آنتي اكسيداني نمونه هاي عسل، روغن سويا و روغن آفتابگردان با استفاده از واكنش نورتابي شيميايي پروكسي اگزالات ها
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
ده،58ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
يوسف غايب، كيومرث زرگوش
توصيفگر ها :
گونه هاي اكسيژن فعال , گاليك اسيد , اولئيك اسيد , آسكوربيك اسيد , BHT , TBHQ
تاريخ نمايه سازي :
1/11/92
استاد داور :
تقي خياميان، محمد ژياني
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
6 Evaluation of antioxidant capacity samples of honey soya oil and sunflower oil by using the chemiluminescence reactions Azmoon Behnaz B Azmoon@ch ac iut ir 2013 Department of Chemistry Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSuperviser Yousef Ghayeb and Kiomars ZargooshEmail Ghayeb@cc iut ac ir and Kiomarszargoosh@yahoo comAbstractA simple and fast procedure is described for evaluating the antioxidant activity of honey soya oiland sunflower oil by using the chemiluminescence reaction of Bis 2 4 6 trichlorophenyl oxalate TCPO with hydrogen peroxide in the presence of di tert butyl 2 tert butyl amino 5 E 2 phenyl 1 ethenyl 3 4 furandicarboxylate as a novel fluorophore The IC50 concentrations of agiven antioxidant which reduce the blank emission intensity by 50 values of all studiedantioxidants were calculated and the results were discussed on the basis of structure antioxidantactivity relationship The linear range for galic acid oleic acid ascorbic acid TBHQ and BHTwere3 3 10 7 to 6 6 10 5 3 3 10 7 to 2 6 10 5 5 5 10 7 to 8 6 10 5 4 7 10 7 to 1 0 10 4 and 3 3 10 7 to 4 3 10 4 respectively Antioxidant activities were in order of gallic acid ascorbic acid TBHQ oleic acid BHT In this regard the radical scavenging activity of thestudied antioxidants was evaluated using a previously reported Co II EDTA OH H2O2 luminolstandard system and compared with those obtained by our method It was found that the proposedmethod is free of physical quenching and oxidant interference For this reason proposed method isable to determine the accurate scavenging activity of the antioxidants to the free radicals Incomparison with previously reported methods the proposed method is low cost and fast Finally the proposed method was applied to the evaluation of antioxidant activity of complex samples suchas soybean oil sunflower oil and honey Keyword Peroxyoxalate Chemiluminescence Furan Derivatives Antioxidant ReactiveOxygen Species Soya Oil Sunflower Oil Honey Galic acid Oleic acid Ascorbic acid TBHQ BHT
استاد راهنما :
يوسف غايب، كيومرث زرگوش
استاد داور :
تقي خياميان، محمد ژياني
