Phospholipid modified glassy carbon electrode for determination of chili peppers pungency by ex-situ extraction voltammetry

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00537142" target="_blank" >RIV/61388955:_____/20:00537142 - isvavai.cz</a>

Alternative codes found

RIV/61989592:15310/20:73603866

Result on the web

<a href="http://hdl.handle.net/11104/0314891" target="_blank" >http://hdl.handle.net/11104/0314891</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jelechem.2019.113790" target="_blank" >10.1016/j.jelechem.2019.113790</a>

Result language

angličtina

Original language name

Phospholipid modified glassy carbon electrode for determination of chili peppers pungency by ex-situ extraction voltammetry

Original language description

Objective determination of chili peppers pungency, for which capsaicinoids (CPDs), predominantly capsaicin (CA) and dihydrocapsaicin (DHC) are responsible, belongs to frequently solved tasks in food and medicinal analysis. In this manuscript, application of ex situ extractive stripping voltammetry (ExSV) utilizing a phospholipid modified glassy carbon electrode is described.nThe obtained analytical parameters, e.g., linear dynamic range from 3 to 60 mg L-1, limit of detection 2.1 mg L-1, proved to be fully comparable with those achieved using the direct voltammetric method on a polished glassy carbon electrode and reference HPLC/UV. Although the sensitivity of ExSV was slightly lower compared to the direct method, ExSV provided better selectivity to CPDs due to their lipophilic interactions with the phospholipid layer. Hydrophilic components of the chili pepper samples were not extracted into the phospholipid layer and therefore did not interfere. The developed method was tested on the determination of CPDs in different chili peppers: Foxta, Madras Chilli, Habanero, Carolina Reaper, Bird's eye, Bhut Jolokia, Naga Jolokia extract, and Habanero extract.nFurthermore, the electrochemical reactions of CPDs in acidic aqueous-methanolic media were characterized using an electrochemical cell hyphenated with mass spectrometer and the main oxidation products were identified.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/GA17-05387S" target="_blank" >GA17-05387S: New Approaches for Monitoring of Transport of Selected Xenobiotics across Biomimetic Membranes</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Electroanalytical Chemistry

ISSN

1572-6657

e-ISSN

—

Volume of the periodical

858

Issue of the periodical within the volume

FEB 2020

Country of publishing house

CH - SWITZERLAND

Number of pages

9

Pages from-to

113790

UT code for WoS article

000515205600034

EID of the result in the Scopus database

2-s2.0-85077722918