КФУ. Карточка публикации. Evaluation of the antioxidant capacity of cognacs and brandies by differential pulse voltammetry

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EVALUATION OF THE ANTIOXIDANT CAPACITY OF COGNACS AND BRANDIES BY DIFFERENTIAL PULSE VOLTAMMETRY

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2014

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Зиятдинова Гузель Камилевна, автор

Авторы, студенты КФУ

Салихова Инна Равилевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova G.K.Evaluation of the Antioxidant Capacity of Cognacs and Brandies by Differential Pulse Voltammetry / G.K. Ziyatdinova, I.R. Salikhova, H.C. Budnikov // J. Anal. Chem. - 2014. - V. 69. - № 12. - P. 1165-1170.

Аннотация

Components of cognacs and brandies form anodic peaks at 0.44 and 0.59 V in the differential pulse voltammogram recorded on a glassy carbon electrode modified with multiwalled carbon nanotubes in phosphate buffer solution at pH 3.0. The effect of the pH of the supporting electrolyte and pulse parameters on the analytical signal is evaluated. It was found that the peak at 0.44 V is integral in nature; gallic acid contributes to this peak. The peak at 0.59 V is a result of the oxidation of ellagic acid. We developed a method for the evaluation of the antioxidant capacity (AOC) of cognacs and brandies by differential pulse voltammetry and tested it on nine samples. The total area of two oxidation steps was selected as a parameter characterizing the antioxidant properties. Antioxidant capacity was expressed in equivalents of ellagic acid per 100 mL of a beverage. Correlations between the AOC of beverages and their total AOC and ferric reducing power (r = 0.9752 and 0.9539) are found.

Ключевые слова

Differential pulse voltammetry, modified electrodes, alcoholic beverages, phenolic antioxidants, antioxidant capacity, food analysis.

Название журнала

JOURNAL OF ANALYTICAL CHEMISTRY

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https://repository.kpfu.ru/?p_id=107826

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Салихова Инна Равилевна	ru_RU
dc.date.accessioned	2014-01-01T00:00:00Z	ru_RU
dc.date.available	2014-01-01T00:00:00Z	ru_RU
dc.date.issued	2014	ru_RU
dc.identifier.citation	Ziyatdinova G.K.Evaluation of the Antioxidant Capacity of Cognacs and Brandies by Differential Pulse Voltammetry / G.K. Ziyatdinova, I.R. Salikhova, H.C. Budnikov // J. Anal. Chem. - 2014. - V. 69. - № 12. - P. 1165-1170.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=107826	ru_RU
dc.description.abstract	JOURNAL OF ANALYTICAL CHEMISTRY	ru_RU
dc.description.abstract	Components of cognacs and brandies form anodic peaks at 0.44 and 0.59 V in the differential pulse voltammogram recorded on a glassy carbon electrode modified with multiwalled carbon nanotubes in phosphate buffer solution at pH 3.0. The effect of the pH of the supporting electrolyte and pulse parameters on the analytical signal is evaluated. It was found that the peak at 0.44 V is integral in nature; gallic acid contributes to this peak. The peak at 0.59 V is a result of the oxidation of ellagic acid. We developed a method for the evaluation of the antioxidant capacity (AOC) of cognacs and brandies by differential pulse voltammetry and tested it on nine samples. The total area of two oxidation steps was selected as a parameter characterizing the antioxidant properties. Antioxidant capacity was expressed in equivalents of ellagic acid per 100 mL of a beverage. Correlations between the AOC of beverages and their total AOC and ferric reducing power (r = 0.9752 and 0.9539) are found.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Differential pulse voltammetry	ru_RU
dc.subject	modified electrodes	ru_RU
dc.subject	alcoholic beverages	ru_RU
dc.subject	phenolic antioxidants	ru_RU
dc.subject	antioxidant capacity	ru_RU
dc.subject	food analysis.	ru_RU
dc.title	Evaluation of the antioxidant capacity of cognacs and brandies by differential pulse voltammetry	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU