In vitro antioxidative activities of extract and semi-purified fractions of the marine red alga, Rhodomela confervoides (Rhodomelaceae)

doi:10.1016/j.foodchem.2008.08.078

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	In vitro antioxidative activities of extract and semi-purified fractions of the marine red alga, Rhodomela confervoides (Rhodomelaceae)
	Wang, Bin-Gui; Zhang, Wei-Wei; Duan, Xiao-Juan; Li, Xiao-Ming
刊名	FOOD CHEMISTRY
	2009-04-15
卷号	113 期号:4 页码:1101-1105
关键词	Seaweeds Rhodomela Confervoides Antioxidant Activity Phenolic Content Dpph Beta-carotene-linoleate Reducing Power
ISSN号	0308-8146
DOI	10.1016/j.foodchem.2008.08.078
文献子类	Article
英文摘要	The methanol-chloroform extract of the marine red alga, Rhodomela confervoides, was measured for antioxidant activity, using the alpha,alpha-diphenyl-beta-picrylhydrazyl radical-scavenging assay and the beta-carotene-linoleate bleaching assay systems, and compared with those of the positive Controls of butylated hydroxytoluene, gallic acid and ascorbic acid, The active extract was further purified by liquid-liquid partition to afford four fractions, of which the ethyl acetate-soluble (EA) fraction exhibited the strongest antioxidant activity in both assay systems. This fraction was further divided into seven subfractions, designated as EA1-EA7, by silica gel vacuum liquid chromatography. in most cases, EA1 and EM Were found to possess the strongest activity. The total phenolic contents and reducing powers of the extract, fractions, and subfractions were also determined. Significant associations between the antioxidant potency and the total phenolic content, as well as between the antioxidant potency and the reducing power, were found for the tested fractions and subfractions. (c) 2008 Elsevier Ltd. All rights reserved.; The methanol-chloroform extract of the marine red alga, Rhodomela confervoides, was measured for antioxidant activity, using the alpha,alpha-diphenyl-beta-picrylhydrazyl radical-scavenging assay and the beta-carotene-linoleate bleaching assay systems, and compared with those of the positive Controls of butylated hydroxytoluene, gallic acid and ascorbic acid, The active extract was further purified by liquid-liquid partition to afford four fractions, of which the ethyl acetate-soluble (EA) fraction exhibited the strongest antioxidant activity in both assay systems. This fraction was further divided into seven subfractions, designated as EA1-EA7, by silica gel vacuum liquid chromatography. in most cases, EA1 and EM Were found to possess the strongest activity. The total phenolic contents and reducing powers of the extract, fractions, and subfractions were also determined. Significant associations between the antioxidant potency and the total phenolic content, as well as between the antioxidant potency and the reducing power, were found for the tested fractions and subfractions. (c) 2008 Elsevier Ltd. All rights reserved.
学科主题	Chemistry, Applied ; Food Science & Technology ; Nutrition & Dietetics
URL标识	查看原文
语种	英语
WOS记录号	WOS:000261857100038
公开日期	2010-12-22
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/3035]
专题	海洋研究所_实验海洋生物学重点实验室
作者单位	Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Wang, Bin-Gui,Zhang, Wei-Wei,Duan, Xiao-Juan,et al. In vitro antioxidative activities of extract and semi-purified fractions of the marine red alga, Rhodomela confervoides (Rhodomelaceae)[J]. FOOD CHEMISTRY,2009,113(4):1101-1105.
APA	Wang, Bin-Gui,Zhang, Wei-Wei,Duan, Xiao-Juan,&Li, Xiao-Ming.(2009).In vitro antioxidative activities of extract and semi-purified fractions of the marine red alga, Rhodomela confervoides (Rhodomelaceae).FOOD CHEMISTRY,113(4),1101-1105.
MLA	Wang, Bin-Gui,et al."In vitro antioxidative activities of extract and semi-purified fractions of the marine red alga, Rhodomela confervoides (Rhodomelaceae)".FOOD CHEMISTRY 113.4(2009):1101-1105.