Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia

This study aimed to assess the effects of fresh, thermal drying method (vacuum oven drying), and nonthermal drying method (freeze drying) on the antioxidant activities of leaves and berries of Cayratia trifolia using ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-1-picrylhydrazyl radical...

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Main Authors:	Rabeta, M.S., Lin, S.P.
Format:	Article
Language:	English
Published:	Universiti Kebangsaan Malaysia 2015
Online Access:	http://journalarticle.ukm.my/8313/ http://journalarticle.ukm.my/8313/ http://journalarticle.ukm.my/8313/1/16_M.S._Rabeta_.pdf

id	ukm-8313
recordtype	eprints
spelling	ukm-83132016-12-14T06:46:53Z http://journalarticle.ukm.my/8313/ Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia Rabeta, M.S. Lin, S.P. This study aimed to assess the effects of fresh, thermal drying method (vacuum oven drying), and nonthermal drying method (freeze drying) on the antioxidant activities of leaves and berries of Cayratia trifolia using ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-1-picrylhydrazyl radical scavenging capacity (DPPH) assays. The total phenolic content (TPC) and flavonoid content (TFC) of the leaves and berries of C. trifolia were also measured. Based on the results obtained, the TPC, TFC, and antioxidant activities of the leaves and berries were arranged in the following order: freeze-dried sample with methanol extraction > vacuum-dried sample with methanol extraction > freeze-dried sample with water extraction > vacuum-dried sample with water extraction > fresh sample with methanol extraction > fresh sample with water extraction. The results showed a significant difference (p<0.05) between the fresh and dried samples. In conclusion, freeze drying was found to be a good method for maintaining TPC, TFC, and antioxidant activities by FRAP and DPPH methods in the leaves and berries of C. trifolia. Universiti Kebangsaan Malaysia 2015-02 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8313/1/16_M.S._Rabeta_.pdf Rabeta, M.S. and Lin, S.P. (2015) Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia. Sains Malaysiana, 44 (2). pp. 275-280. 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 assess the effects of fresh, thermal drying method (vacuum oven drying), and nonthermal drying method (freeze drying) on the antioxidant activities of leaves and berries of Cayratia trifolia using ferric reducing antioxidant power (FRAP) and 1,1-diphenyl-1-picrylhydrazyl radical scavenging capacity (DPPH) assays. The total phenolic content (TPC) and flavonoid content (TFC) of the leaves and berries of C. trifolia were also measured. Based on the results obtained, the TPC, TFC, and antioxidant activities of the leaves and berries were arranged in the following order: freeze-dried sample with methanol extraction > vacuum-dried sample with methanol extraction > freeze-dried sample with water extraction > vacuum-dried sample with water extraction > fresh sample with methanol extraction > fresh sample with water extraction. The results showed a significant difference (p<0.05) between the fresh and dried samples. In conclusion, freeze drying was found to be a good method for maintaining TPC, TFC, and antioxidant activities by FRAP and DPPH methods in the leaves and berries of C. trifolia.
format	Article
author	Rabeta, M.S. Lin, S.P.
spellingShingle	Rabeta, M.S. Lin, S.P. Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
author_facet	Rabeta, M.S. Lin, S.P.
author_sort	Rabeta, M.S.
title	Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
title_short	Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
title_full	Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
title_fullStr	Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
title_full_unstemmed	Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
title_sort	effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia
publisher	Universiti Kebangsaan Malaysia
publishDate	2015
url	http://journalarticle.ukm.my/8313/ http://journalarticle.ukm.my/8313/ http://journalarticle.ukm.my/8313/1/16_M.S._Rabeta_.pdf
first_indexed	2023-09-18T19:52:04Z
last_indexed	2023-09-18T19:52:04Z
_version_	1777406285488062464

Effects of different drying methods on the antioxidant activities of leaves and berries of cayratia trifolia

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