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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Main Authors:	Photinon K., Chalermchart Y., Khanongnuch C., Wang S.-H., Liu C.-C.
Format:	Article
Language:	English
Published:	2014
Online Access:	http://www.scopus.com/inward/record.url?eid=2-s2.0-77955482082&partnerID=40&md5=42dfe2d5e53c57e738d640aa0ee12672 http://www.ncbi.nlm.nih.gov/pubmed/22294893 http://cmuir.cmu.ac.th/handle/6653943832/586
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Institution:	Chiang Mai University
Language:	English

id	th-cmuir.6653943832-586
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spelling	th-cmuir.6653943832-5862014-08-29T08:50:25Z A thick-film sensor as a novel device for determination of polyphenols and their antioxidant capacity in white wine Photinon K. Chalermchart Y. Khanongnuch C. Wang S.-H. Liu C.-C. 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. © 2010 by the authors. 2014-08-29T08:50:25Z 2014-08-29T08:50:25Z 2010 Article 14248220 10.3390/s100301670 http://www.scopus.com/inward/record.url?eid=2-s2.0-77955482082&partnerID=40&md5=42dfe2d5e53c57e738d640aa0ee12672 http://www.ncbi.nlm.nih.gov/pubmed/22294893 http://cmuir.cmu.ac.th/handle/6653943832/586 English
institution	Chiang Mai University
building	Chiang Mai University Library
country	Thailand
collection	CMU Intellectual Repository
language	English
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. © 2010 by the authors.
format	Article
author	Photinon K. Chalermchart Y. Khanongnuch C. Wang S.-H. Liu C.-C.
spellingShingle	Photinon K. Chalermchart Y. Khanongnuch C. Wang S.-H. Liu C.-C. A thick-film sensor as a novel device for determination of polyphenols and their antioxidant capacity in white wine
author_facet	Photinon K. Chalermchart Y. Khanongnuch C. Wang S.-H. Liu C.-C.
author_sort	Photinon K.
title	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_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_sort	thick-film sensor as a novel device for determination of polyphenols and their antioxidant capacity in white wine
publishDate	2014
url	http://www.scopus.com/inward/record.url?eid=2-s2.0-77955482082&partnerID=40&md5=42dfe2d5e53c57e738d640aa0ee12672 http://www.ncbi.nlm.nih.gov/pubmed/22294893 http://cmuir.cmu.ac.th/handle/6653943832/586
_version_	1681419510909763584

A thick-film sensor as a novel device for determination of polyphenols and their antioxidant capacity in white wine

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