KFU. Card publication. Selective Determination of Total Capsaicinoids in Plant Material Using Poly(Gallic Acid)-modified Electrode

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FEDERAL UNIVERSITY

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

Form of presentation

Articles in international journals and collections

Year of publication

2019

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Authors, employees of KFU

Budnikov German Konstantinovich, author

Guss Ekaterina Valerevna, author

Davletshin Rustam Rifkhatovich, author

Ziyatdinova Guzel Kamilevna, author

Authors, postgraduates KFU

Guss Ekaterina Valerevna, postgraduate kfu

Bibliographic description in the original language

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.

Annotation

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.

Keywords

Voltammetry, Capsaicinoids, Electropolymerization, Modified electrodes, Plant analysis

The name of the journal

ELECTROANALYSIS

URL

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

Please use this ID to quote from or refer to the card

https://repository.kpfu.ru/eng/?p_id=197933&p_lang=2

Full metadata record

Field DC	Value	Language
dc.contributor.author	Budnikov German Konstantinovich	ru_RU
dc.contributor.author	Guss Ekaterina Valerevna	ru_RU
dc.contributor.author	Davletshin Rustam Rifkhatovich	ru_RU
dc.contributor.author	Ziyatdinova Guzel Kamilevna	ru_RU
dc.contributor.author	Guss Ekaterina Valerevna	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/eng/?p_id=197933&p_lang=2	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	Articles in international journals and collections	ru_RU