КФУ. Карточка публикации. Selective Determination of Total Capsaicinoids in Plant Material Using Poly(Gallic Acid)-modified Electrode

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SELECTIVE DETERMINATION OF TOTAL CAPSAICINOIDS IN PLANT MATERIAL USING POLY(GALLIC ACID)-MODIFIED ELECTRODE

Форма представления

Статьи в зарубежных журналах и сборниках

Год публикации

2019

Язык

английский

Авторы, сотрудники КФУ

Будников Герман Константинович, автор

Гусс Екатерина Валерьевна, автор

Давлетшин Рустам Рифхатович, автор

Зиятдинова Гузель Камилевна, автор

Авторы, аспиранты КФУ

Гусс Екатерина Валерьевна, автор

Библиографическое описание на языке оригинала

Ziyatdinova, G. Selective determination of total capsaicinoids in plant material using poly(gallic acid)-modified electrode / G. Ziyatdinova, E. Kozlova, H. Budnikov, R. Davletshin // Electroanalysis. – 2019. – V. 31. – № 2. – P. 222-230.

Аннотация

Novel voltammetric approach for the selective determination of total capsaicinoids has been developed using glassy carbon electrode modified with multi-walled carbon nanotubes and poly(gallic acid) (PGA/MWNT/GCE). The modified electrode provides significant improvements in the capsaicinoids voltammetric characteristics in comparison to GCE and MWNT/GCE. The electrooxidation of capsaicinoids is irreversible adsorption-controlled process with the anodic transfer coefficient of 0.49-0.53 and heterogeneous electron transfer rate constant of 1300-2400s(-1). The analytical ranges of 0.010-1.0 and 1.0-50M for capsaicin, 0.025-0.75 and 0.75-75M for dihydrocapsaicin and 0.025-5.0 and 5.0-75M for nonivamide with the detection limits of 2.9, 5.9 and 6.1nM, respectively, have been obtained using differential pulse voltammetry (DPV). The selectivity of the capsaicinoids quantification in the presence of ascorbic acid, -tocopherol and carotenoids is shown. The method has been tested on the samples of red hot pepper spices and Capsicum annuum L. tinctures. The results correspond to the chromatographic data.

Ключевые слова

Voltammetry, Capsaicinoids, Electropolymerization, Modified electrodes, Plant analysis

Название журнала

ELECTROANALYSIS

URL

https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053057135&doi=10.1002%2felan.201800455&partnerID=40&md5=82b3ca571fac113fd2f19e01fa8b887d

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https://repository.kpfu.ru/?p_id=197933

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	Давлетшин Рустам Рифхатович	ru_RU
dc.contributor.author	Зиятдинова Гузель Камилевна	ru_RU
dc.contributor.author	Гусс Екатерина Валерьевна	ru_RU
dc.date.accessioned	2019-01-01T00:00:00Z	ru_RU
dc.date.available	2019-01-01T00:00:00Z	ru_RU
dc.date.issued	2019	ru_RU
dc.identifier.citation	Ziyatdinova, G. Selective determination of total capsaicinoids in plant material using poly(gallic acid)-modified electrode / G. Ziyatdinova, E. Kozlova, H. Budnikov, R. Davletshin // Electroanalysis. – 2019. – V. 31. – № 2. – P. 222-230.	ru_RU
dc.identifier.uri	https://repository.kpfu.ru/?p_id=197933	ru_RU
dc.description.abstract	ELECTROANALYSIS	ru_RU
dc.description.abstract	Novel voltammetric approach for the selective determination of total capsaicinoids has been developed using glassy carbon electrode modified with multi-walled carbon nanotubes and poly(gallic acid) (PGA/MWNT/GCE). The modified electrode provides significant improvements in the capsaicinoids voltammetric characteristics in comparison to GCE and MWNT/GCE. The electrooxidation of capsaicinoids is irreversible adsorption-controlled process with the anodic transfer coefficient of 0.49-0.53 and heterogeneous electron transfer rate constant of 1300-2400s(-1). The analytical ranges of 0.010-1.0 and 1.0-50M for capsaicin, 0.025-0.75 and 0.75-75M for dihydrocapsaicin and 0.025-5.0 and 5.0-75M for nonivamide with the detection limits of 2.9, 5.9 and 6.1nM, respectively, have been obtained using differential pulse voltammetry (DPV). The selectivity of the capsaicinoids quantification in the presence of ascorbic acid, -tocopherol and carotenoids is shown. The method has been tested on the samples of red hot pepper spices and Capsicum annuum L. tinctures. The results correspond to the chromatographic data.	ru_RU
dc.language.iso	ru	ru_RU
dc.subject	Voltammetry	ru_RU
dc.subject	Capsaicinoids	ru_RU
dc.subject	Electropolymerization	ru_RU
dc.subject	Modified electrodes	ru_RU
dc.subject	Plant analysis	ru_RU
dc.title	Selective Determination of Total Capsaicinoids in Plant Material Using Poly(Gallic Acid)-modified Electrode	ru_RU
dc.type	Статьи в зарубежных журналах и сборниках	ru_RU