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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
2009-04-15
发表期刊FOOD CHEMISTRY
ISSN0308-8146
卷号113期号:4页码:1101-1105
文章类型Article
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.
关键词Seaweeds Rhodomela Confervoides Antioxidant Activity Phenolic Content Dpph Beta-carotene-linoleate Reducing Power
学科领域Chemistry, Applied ; Food Science & Technology ; Nutrition & Dietetics
DOI10.1016/j.foodchem.2008.08.078
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收录类别SCI
语种英语
WOS记录号WOS:000261857100038
引用统计
被引频次:92[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/3034
专题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
第一作者单位实验海洋生物学重点实验室
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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.
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