Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas

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Bibliographic Details
Main Author:	Mohamad Syafiq, Sa’odi
Other Authors:	Dr. AKM Shafiqul Islam (Advisor)
Format:	Learning Object
Language:	English
Published:	Universiti Malaysia Perlis 2011
Subjects:	Enzymatic biosensor Xanthine Oxidase (XO) Antioxidant Herbal tea Medicinal plants Biosensor
Online Access:	http://dspace.unimap.edu.my/xmlui/handle/123456789/13364
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Institution:	Universiti Malaysia Perlis
Language:	English

id	my.unimap-13364
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spelling	my.unimap-133642011-08-02T02:17:09Z Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas Mohamad Syafiq, Sa’odi Dr. AKM Shafiqul Islam (Advisor) Enzymatic biosensor Xanthine Oxidase (XO) Antioxidant Herbal tea Medicinal plants Biosensor Access is limited to UniMAP community. An enzymatic biosensor has been developed using Xanthine Oxidase (XO enzyme as sensing material for the determination of antioxidant properties of selected herbal teas. The enzyme was immobilized in a Kappa-Carrageenan membrane on a carbon paste electrode. The variables concerning the biosensor preparation such as types of tea, amount of Kappa- Carrageenan membrane, concentration of tea samples, addition of Xanthine solution and tea samples, and also addition of supporting electrolytes were studied. The antioxidant properties of the herbal teas were demonstrated by comparing percentage of inhibition of selected tea samples using the standard 1, 1-diphenyl-2-picrylhydrazyl DPPH free radical scavenging potential and with the cyclic voltammogtram using the Dropsens biosensor. Results show that cyclic voltammetry analysis using the Xanthine Oxidase biosensor produced significant result in comparison with the free radical scavenging activity using DPPH. Even though the results using biosensor is less accurate compared to standard method, but it was fairly acceptable. 2011-08-02T02:17:09Z 2011-08-02T02:17:09Z 2011-05 Learning Object http://hdl.handle.net/123456789/13364 en Universiti Malaysia Perlis School of Bioprocess Engineering
institution	Universiti Malaysia Perlis
building	UniMAP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Perlis
content_source	UniMAP Library Digital Repository
url_provider	http://dspace.unimap.edu.my/
language	English
topic	Enzymatic biosensor Xanthine Oxidase (XO) Antioxidant Herbal tea Medicinal plants Biosensor
spellingShingle	Enzymatic biosensor Xanthine Oxidase (XO) Antioxidant Herbal tea Medicinal plants Biosensor Mohamad Syafiq, Sa’odi Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas
description	Access is limited to UniMAP community.
author2	Dr. AKM Shafiqul Islam (Advisor)
author_facet	Dr. AKM Shafiqul Islam (Advisor) Mohamad Syafiq, Sa’odi
format	Learning Object
author	Mohamad Syafiq, Sa’odi
author_sort	Mohamad Syafiq, Sa’odi
title	Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas
title_short	Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas
title_full	Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas
title_fullStr	Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas
title_full_unstemmed	Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas
title_sort	development of disposable xanthine oxidase biosensor for the determination of antioxidant properties of herbal teas
publisher	Universiti Malaysia Perlis
publishDate	2011
url	http://dspace.unimap.edu.my/xmlui/handle/123456789/13364
_version_	1643790819427090432

Development of disposable Xanthine Oxidase biosensor for the determination of antioxidant properties of herbal teas

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