Казанский (Приволжский) федеральный университет, КФУ
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COULOMETRIC TITRATION WITH ELECTROGENERATED OXIDANTS AS A TOOL FOR EVALUATION OF COGNAC AND BRANDY ANTIOXIDANT PROPERTIES
Форма представленияСтатьи в зарубежных журналах и сборниках
Год публикации2014
Языканглийский
  • Будников Герман Константинович, автор
  • Зиятдинова Гузель Камилевна, автор
  • Салихова Инна Равилевна, автор
  • Библиографическое описание на языке оригинала Ziyatdinova G. Coulometric titration with electrogenerated oxidants as a tool for evaluation of cognac and brandy antioxidant properties / G. Ziyatdinova, I. Salikhova, H. Budnikov // Food Chem. - 2014. - V.150. - P.80-86.
    Аннотация Stoichiometric coefficients for reactions of cognac antioxidants with coulometric titrants (electrogenerated bromine and hexacyanoferrate(III) ions) have been found. Ellagic and gallic acids react with both titrants while aldehydes (vanillin, syringic and coniferaldehyde) - with electrogenerated bromine only. Furfurals do not show significant reactivity toward both oxidants. Cognac and brandy total antioxidant capacity (TAC) and ferric reducing power (FRP) based on reactions with electrogenerated bromine and hexacyanoferrate(III) ions, respectively, have been evaluated. Both parameters for cognacs are statistically significant higher than for brandies and grow with the age increase. Beverages under investigation has shown relatively high antiradical activity toward 2,2-diphenyl-1-picrylhydrazyl (7-92% and 5-93% for cognacs and brandies, respectively). Total phenolics content has been evaluated by Folin-Ciocalteu method. Positive correlations (r = 0.8077-0.9617) have been observed.
    Ключевые слова Constant-current coulometry, Electrogenerated oxidants, Antioxidant properties, Total antioxidant capacity, Ferric reducing power, Total phenolics, Cognac, Food analysis
    Название журнала FOOD CHEMISTRY
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