A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine

A thick-film electrochemical sensor with an iridium-carbon working electrode was used for determining polyphenols and their antioxidant capacity in white wine. Caffeic acid was used as a model species because it has the ability to produce the highest oxidation current. The correlation coefficient of...

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Detalles Bibliográficos
Autores principales: Photinon, Kanokorn, Chalermchart, Yongyuth, Khanongnuch, Chartchai, Wang, Shih-Han, Liu, Chung-Chiun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2010
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3264445/
https://www.ncbi.nlm.nih.gov/pubmed/22294893
http://dx.doi.org/10.3390/s100301670
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author Photinon, Kanokorn
Chalermchart, Yongyuth
Khanongnuch, Chartchai
Wang, Shih-Han
Liu, Chung-Chiun
author_facet Photinon, Kanokorn
Chalermchart, Yongyuth
Khanongnuch, Chartchai
Wang, Shih-Han
Liu, Chung-Chiun
author_sort Photinon, Kanokorn
collection PubMed
description A thick-film electrochemical sensor with an iridium-carbon working electrode was used for determining polyphenols and their antioxidant capacity in white wine. Caffeic acid was used as a model species because it has the ability to produce the highest oxidation current. The correlation coefficient of 0.9975 was obtained between sensor response and caffeic acid content. The total phenolic content (TPC) and scavenging activity on 1,1-diphenyl-2-pycrylhydrazyl (DPPH·) radical were also found to be strongly correlated with the concentration of caffeic acid, with a correlation coefficient of 0.9823 and 0.9958, respectively. The sensor prototype was proven to be a simple, efficient and cost effective device to evaluate the antioxidant capacity of substances.
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spelling pubmed-32644452012-01-31 A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine Photinon, Kanokorn Chalermchart, Yongyuth Khanongnuch, Chartchai Wang, Shih-Han Liu, Chung-Chiun Sensors (Basel) Article A thick-film electrochemical sensor with an iridium-carbon working electrode was used for determining polyphenols and their antioxidant capacity in white wine. Caffeic acid was used as a model species because it has the ability to produce the highest oxidation current. The correlation coefficient of 0.9975 was obtained between sensor response and caffeic acid content. The total phenolic content (TPC) and scavenging activity on 1,1-diphenyl-2-pycrylhydrazyl (DPPH·) radical were also found to be strongly correlated with the concentration of caffeic acid, with a correlation coefficient of 0.9823 and 0.9958, respectively. The sensor prototype was proven to be a simple, efficient and cost effective device to evaluate the antioxidant capacity of substances. Molecular Diversity Preservation International (MDPI) 2010-03-02 /pmc/articles/PMC3264445/ /pubmed/22294893 http://dx.doi.org/10.3390/s100301670 Text en © 2010 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Photinon, Kanokorn
Chalermchart, Yongyuth
Khanongnuch, Chartchai
Wang, Shih-Han
Liu, Chung-Chiun
A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine
title A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine
title_full A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine
title_fullStr A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine
title_full_unstemmed A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine
title_short A Thick-film Sensor as a Novel Device for Determination of Polyphenols and Their Antioxidant Capacity in White Wine
title_sort thick-film sensor as a novel device for determination of polyphenols and their antioxidant capacity in white wine
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3264445/
https://www.ncbi.nlm.nih.gov/pubmed/22294893
http://dx.doi.org/10.3390/s100301670
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