Free radical scavenging activities and bioactive substances of Jerusalem artichoke (Helianthus tuberosus L.) leaves

	Free radical scavenging activities and bioactive substances of Jerusalem artichoke (Helianthus tuberosus L.) leaves
	Yuan, Xiaoyan 1; Gao, Mingzhe 1; Xiao, Hongbin 1; Tan, Chengyu 2; Du, Yuguang 1
刊名	food chemistry
	2012-07-01
卷号	133 期号:1 页码:10-14
关键词	Helianthus tuberosus L. Jerusalem artichoke Free radical scavenging activity Phenolic compounds Dicaffeoylquinic acids
通讯作者	肖红斌
产权排序	1,1
英文摘要	the total phenolic content and radical scavenging activities of jerusalem artichoke (helianthus tuberosus l.) leaves were investigated. results indicated that the ethyl acetate fraction contained the highest total phenolic content (266.69 +/- 2.51 mg gae/g dry extract) accompanied with strongest free radical scavenging abilities. following an in vitro radical scavenging activity-guide fractionation procedure, six phenolic compounds which strongly quenched free radicals were separated from ethyl acetate fraction. among them, 3-o-caffeoylquinic acid and 1,5-dicaffeoylquinic acid played a dominant role due to their strong free radical scavenging abilities and their high contents. the content of 3-o-caffeoylquinic acid in n-butanol fraction was 74.58 +/- 1.05 mg/g, while 1,5-dicaffeoylquinic acid in ethyl acetate fraction was 104.51 +/- 2.86 mg/g. the results imply that the leaves of jerusalem artichoke might be a potential source of natural antioxidants. (c) 2011 elsevier ltd. all rights reserved.
学科主题	物理化学
类目[WOS]	chemistry, applied ; food science & technology ; nutrition & dietetics
研究领域[WOS]	chemistry ; food science & technology ; nutrition & dietetics
关键词[WOS]	antioxidant activity ; constituents ; extracts ; identification ; canola ; acids
收录类别	SCI
语种	英语
WOS记录号	WOS:000301826400002
公开日期	2013-10-11
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/118219]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Separat Sci Analyt Chem, Dalian 116023, Peoples R China 2.Dalian Ocean Univ, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Yuan, Xiaoyan,Gao, Mingzhe,Xiao, Hongbin,et al. Free radical scavenging activities and bioactive substances of Jerusalem artichoke (Helianthus tuberosus L.) leaves[J]. food chemistry,2012,133(1):10-14.
APA	Yuan, Xiaoyan,Gao, Mingzhe,Xiao, Hongbin,Tan, Chengyu,&Du, Yuguang.(2012).Free radical scavenging activities and bioactive substances of Jerusalem artichoke (Helianthus tuberosus L.) leaves.food chemistry,133(1),10-14.
MLA	Yuan, Xiaoyan,et al."Free radical scavenging activities and bioactive substances of Jerusalem artichoke (Helianthus tuberosus L.) leaves".food chemistry 133.1(2012):10-14.