薏苡茎多酚的体外抗氧化活性研究  

Study on Antioxidant Activity of Polyphenols from Coix Stalk

作　　者：覃丽 蓝琳云 张强[2] 喻巧容 黄锁义 

机构地区：[1]右江民族医学院药学院,百色533000 [2]右江民族医学院口腔医学系,百色533000 [3]广西中医药大学药学院,南宁530001 [4]右江民族医学院广西高校右江流域特色民族药研究重点实验室,百色533000

出　　处：《食品工业》2017年第12期177-179,共3页The Food Industry

基　　金：国家自然科学基金资助项目(No.81360684);国家中医药管理局"十二五"中医药重点学科中药化学建设项目(国中医药人教发[2012]32号);广西自然科学基金资助项目(2011GXNSFA018046);广西重点学科药物化学建设项目(桂教科研[2013]16号);2015年自治区级大学生创新创业训练计划立项项目(No.201510599060)

摘　　要：为提取薏苡茎多酚,测定多酚含量和进一步研究多酚的抗氧化活性,采用乙醇提取法提取薏苡茎多酚;酒石酸亚铁法测定样品中多酚的含量。采用水杨酸法、邻苯三酚法分别研究薏苡茎多酚清除·OH、O_2^-·和DPPH自由基的效果。结果表明,薏苡茎提取后的多酚样品中多酚含量为28.1%,薏苡茎多酚对O_2^-·、·OH和DPPH自由基均有一定的清除能力。薏苡茎多酚具有良好的体外抗氧化活性。To extract Coix stalk and determination of polyphenol, polyphenol content and antioxidant activity of polyphenols in further research, extract the Coix stalk polyphenol by using ethanol extraction, polyphenol contents in samples were determined by ferrous tartrate method. The salicylic acid method adjacent benzene phenol method was studied in the Coixseed stalk polyphenols scavenging OH radicals, O2ˉ radical and DPPH free radical effect. The polyphenol content in Coixstem extract polyphenols samples was 28.1%. The Coix stalk polyphenols to O2ˉ free radicals, OH free radical and DPPH free radicals had certain scavenging capacity. Coix stems polyphenols had good antioxidant activity in vitro.

关 键 词：薏苡茎 多酚 体外 抗氧化 自由基 

分 类 号：TQ464[化学工程—制药化工]