КФУ. Карточка публикации. Chronocoulometry of wine on multi-walled carbon nanotube modified electrode: Antioxidant capacity assay

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CHRONOCOULOMETRY OF WINE ON MULTI-WALLED CARBON NANOTUBE MODIFIED ELECTRODE: ANTIOXIDANT CAPACITY ASSAY

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2016

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Гусс Екатерина Валерьевна, автор

Зиятдинова Гузель Камилевна, автор

Авторы, аспиранты КФУ

Гусс Екатерина Валерьевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova G. Chronocoulometry of wine on multi-walled carbon nanotube modified electrode: antioxidant capacity assay / G. Ziyatdinova, E. Kozlova, H. Budnikov // Food Chem. - 2016. - V.196. - P.405-410.

Аннотация

Phenolic antioxidants of wine were electrochemically oxidized on multi-walled carbon nanotubes modified glassy carbon electrode (MWNT/GCE) in phosphate buffer solution. Three oxidation peaks were observed at 0.39, 0.61 and 0.83 V for red dry wine and 0.39, 0.80 and 1.18 V for white dry wine, respectively, using differential pulse voltammetry at pH 4.0. The oxidation potentials for individual phenolic antioxidants confirmed the integral nature of the analytical signals for the wines examined. A one-step chronocoulometric method at 0.83 and 1.18 V for red and white wines, respectively, has been developed for the evaluation of wine antioxidant capacity (AOC). The AOC is expressed in gallic acid equivalents per 1 L of wine. The AOC of white wine was significantly less than red wine (386+/-112 vs. 1224+/-184, p < 0.0001), as might be expected. Positive correlations were observed between gallic acid equivalent AOC of wine and total antioxidant capacity.

Ключевые слова

Differential pulse voltammetry, Chronocoulometry, Carbon nanotubes, Polyphenols, Antioxidant capacity, Wine, Food analysis.

Название журнала

FOOD CHEMISTRY

URL

http://www.scopus.com/inward/record.url?eid=2-s2.0-84942316550&partnerID=40&md5=5582bf04e154f52073eef2963001879e

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https://repository.kpfu.ru/?p_id=121462

Полная запись метаданных

Поле DC	Значение	Язык
dc.contributor.author	Будников Герман Константинович	ru_RU
dc.contributor.author	Гусс Екатерина Валерьевна	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Гусс Екатерина Валерьевна	ru_RU
dc.date.accessioned	2016-01-01T00:00:00Z	ru_RU
dc.date.available	2016-01-01T00:00:00Z	ru_RU
dc.date.issued	2016	ru_RU
dc.identifier.citation	Ziyatdinova G. Chronocoulometry of wine on multi-walled carbon nanotube modified electrode: antioxidant capacity assay / G. Ziyatdinova, E. Kozlova, H. Budnikov // Food Chem. - 2016. - V.196. - P.405-410.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=121462	ru_RU
dc.description.abstract	FOOD CHEMISTRY	ru_RU
dc.description.abstract	Phenolic antioxidants of wine were electrochemically oxidized on multi-walled carbon nanotubes modified glassy carbon electrode (MWNT/GCE) in phosphate buffer solution. Three oxidation peaks were observed at 0.39, 0.61 and 0.83 V for red dry wine and 0.39, 0.80 and 1.18 V for white dry wine, respectively, using differential pulse voltammetry at pH 4.0. The oxidation potentials for individual phenolic antioxidants confirmed the integral nature of the analytical signals for the wines examined. A one-step chronocoulometric method at 0.83 and 1.18 V for red and white wines, respectively, has been developed for the evaluation of wine antioxidant capacity (AOC). The AOC is expressed in gallic acid equivalents per 1 L of wine. The AOC of white wine was significantly less than red wine (386+/-112 vs. 1224+/-184, p < 0.0001), as might be expected. Positive correlations were observed between gallic acid equivalent AOC of wine and total antioxidant capacity.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Differential pulse voltammetry	ru_RU
dc.subject	Chronocoulometry	ru_RU
dc.subject	Carbon nanotubes	ru_RU
dc.subject	Polyphenols	ru_RU
dc.subject	Antioxidant capacity	ru_RU
dc.subject	Wine	ru_RU
dc.subject	Food analysis.	ru_RU
dc.title	Chronocoulometry of wine on multi-walled carbon nanotube modified electrode: Antioxidant capacity assay	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU