Position: Home > Articles > 2,2-Diphenyl-1-picrylhydrazyl Radical Scavenging Activites of Eleven Species of Natural Plant Extracts
FOOD SCIENCE
2009,30
(1)
45-47
11种天然植物提取物对DPPH自由基的清除作用
作 者:
孙丽萍;王大仟;张智武
单 位:
中国农业科学院蜜蜂研究所;北京市卫生局临床药学研究所
关键词:
油菜蜂花粉提取物;蜂胶;天然提取物;DPPH;抗氧化
摘 要:
2,2-二苯基-1-苦肼基自由基(2,2-diphenyl-1-picrylhydrazyl,DPPH)分析法是一种筛选自由基清除剂的简便方法,本实验采用DPPH自由基分析法测定了油菜蜂花粉和多种植物提取物清除自由基作用的强弱,用以评价实验样品的抗氧化能力。实验证实11种天然提取物均具有清除DPPH自由基的能力,且清除DPPH自由基的能力与提取物用量呈正相关关系。各种提取物对DPPH自由基清除能力依次为花粉>银杏>蜂胶>竹叶>葛根>柠檬>柑橘>枸杞>枳棋子>茯苓>五味子,其中富含黄酮类化合物的提取物(花粉、银杏、蜂胶、竹叶、葛根等)具有很强的清除DPPH自由基的能力并有剂量效应关系。在蜂产品中油菜蜂花粉提取物和精制蜂胶一样具有强大的抗氧化作用,花粉提取物对DPPH自由基捕集活性甚至优于蜂胶。
译 名:
2,2-Diphenyl-1-picrylhydrazyl Radical Scavenging Activites of Eleven Species of Natural Plant Extracts
作 者:
SUN Li-ping~1 WANG Da-qian~2 ZHANG Zhi-wu~1 1.Bee Research Institute,Chinese Academy of Agricultural Sciences,Beijing 100093,China; 2.Institute of Clinical Pharmacy,Beijing Municipal Health Bureau,Beijing 100035,China
关键词:
bee pollen;;propolis;;natural plant extract;;DPPH;;antioxidant activity
摘 要:
The antioxidant activities of ethanol or water extracts from eleven species of natural plants were measured with DPPH (2,2-diphenyl-1-picrylhydrazyl) method,respectively.The results indicated that all of them have antioxidant activities, especially some flavonoids-rich extracts,which show stronger antioxidant activities with dose-effect relationship.Furthermore, the antioxidant activities of bee pollen and propolis extracts are the strongest among all the extract samples.