鹊肾树叶提取物抗氧化活性研究  

Antioxidant Activity of Extracts from Leaves of Streblus asper

作　　者：朱圣军[1,2] 李俊[1,2] 蒙爱萍[1,2] 刘庆业[1,2] 黄翠萍[1,2] 

机构地区：[1]广西师范大学环境与资源学院广西环境工程与保护评价重点实验室,广西桂林541004 [2]广西师范大学珍稀濒危动植物生态与环境保护教育部重点实验室,广西桂林541004

出　　处：《广西师范大学学报（自然科学版）》2010年第3期33-36,共4页Journal of Guangxi Normal University:Natural Science Edition

基　　金：国家自然科学基金资助项目(20862002);广西应用基础研究专项资助项目(桂科基0832005);广西环境工程与保护评价重点实验室资助项目(桂科能09108003)

摘　　要：采用分光光度法测定鹊肾树叶各提取物对DPPH自由基、羟基自由基、超氧阴离子自由基的清除能力及其还原能力。结果表明:鹊肾树叶各提取物均有很好的抗氧化活性,其中以乙酸乙酯提取物抗氧化活性最强,甚至优于人工合成抗氧化剂BHT。鹊肾树叶乙酸乙酯提取物是一种很好的天然抗氧化剂,有很好的开发价值。Reducing and radical scavenging abilities of different extracts from leaves of Streblus asper against DPPH,hydroxyl and superoxide radicals were measured by means of photometric method. The results showed that the different extracts of leaves of Streblus asper have obvious antioxidant activity, among which ethyl acetate （EA） fraction exhibited the highest activity. The antioxidant activities of EA extract of Streblus asper leaves was better than that of the synthetic antioxidant （BHT）. The EA extract of leaves of Streblus asper was a good natural antioxidant.

关 键 词：鹊肾树 DPPH 超氧阴离子自由基 羟基自由基 

分 类 号：O629[理学—有机化学]