Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts

This study aimed to determine the total phenolics and antioxidant capacity of defatted dabai parts based on liquid extraction and optimized using response surface methodology (RSM). A two-level factorial design was applied to determine the effect of two independent variables (extraction time: X1 and...

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Main Authors:	Khoo, H-E, Azlan, A., Ismail, A., Abas, F.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2013
Online Access:	http://journalarticle.ukm.my/6311/ http://journalarticle.ukm.my/6311/ http://journalarticle.ukm.my/6311/1/09_H-E_Khoo.pdf

id	ukm-6311
recordtype	eprints
spelling	ukm-63112016-12-14T06:40:49Z http://journalarticle.ukm.my/6311/ Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts Khoo, H-E Azlan, A. Ismail, A. Abas, F. This study aimed to determine the total phenolics and antioxidant capacity of defatted dabai parts based on liquid extraction and optimized using response surface methodology (RSM). A two-level factorial design was applied to determine the effect of two independent variables (extraction time: X1 and % methanol: X2) on three response variables (total phenolic content: Y1, total flavonoid/anthocyanin content: Y2 and Trolox equivalent antioxidant capacity: Y3). The optimum conditions for extraction time and percent methanol were 36 min or 1 min and 62.25% or 53% for the defatted dabai pulp or peel, respectively. The RSM optimized extraction was compared with sonication-assisted extraction. Optimization results showed that defatted dabai parts had high total phenolic content and antioxidant capacity. Sonication-assisted extraction utilized the optimized extraction conditions had further increased the total phenolic content and antioxidant capacity of defatted dabai peel, but not in the pulp. Therefore, optimization of different extraction methods for the defatted fruit parts is recommended for future studies. Universiti Kebangsaan Malaysia 2013-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/6311/1/09_H-E_Khoo.pdf Khoo, H-E and Azlan, A. and Ismail, A. and Abas, F. (2013) Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts. Sains Malaysiana, 42 (7). pp. 949-954. ISSN 0126-6039 http://www.ukm.my/jsm/
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Kebangasaan Malaysia
building	UKM Institutional Repository
collection	Online Access
language	English
description	This study aimed to determine the total phenolics and antioxidant capacity of defatted dabai parts based on liquid extraction and optimized using response surface methodology (RSM). A two-level factorial design was applied to determine the effect of two independent variables (extraction time: X1 and % methanol: X2) on three response variables (total phenolic content: Y1, total flavonoid/anthocyanin content: Y2 and Trolox equivalent antioxidant capacity: Y3). The optimum conditions for extraction time and percent methanol were 36 min or 1 min and 62.25% or 53% for the defatted dabai pulp or peel, respectively. The RSM optimized extraction was compared with sonication-assisted extraction. Optimization results showed that defatted dabai parts had high total phenolic content and antioxidant capacity. Sonication-assisted extraction utilized the optimized extraction conditions had further increased the total phenolic content and antioxidant capacity of defatted dabai peel, but not in the pulp. Therefore, optimization of different extraction methods for the defatted fruit parts is recommended for future studies.
format	Article
author	Khoo, H-E Azlan, A. Ismail, A. Abas, F.
spellingShingle	Khoo, H-E Azlan, A. Ismail, A. Abas, F. Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
author_facet	Khoo, H-E Azlan, A. Ismail, A. Abas, F.
author_sort	Khoo, H-E
title	Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
title_short	Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
title_full	Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
title_fullStr	Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
title_full_unstemmed	Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
title_sort	response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts
publisher	Universiti Kebangsaan Malaysia
publishDate	2013
url	http://journalarticle.ukm.my/6311/ http://journalarticle.ukm.my/6311/ http://journalarticle.ukm.my/6311/1/09_H-E_Khoo.pdf
first_indexed	2023-09-18T19:46:34Z
last_indexed	2023-09-18T19:46:34Z
_version_	1777405939315376128

Response surface methodology optimization for extraction of phenolics and antioxidant capacity in defatted dabai parts

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