异形玉叶金花果实不同提取部位抗氧化活性研究  

Study on Antioxidant Activity of the Fruit from Mussaenda Anomala Li

作　　者：邓维先[1] 简永远[1] 杨再波[1] 

机构地区：[1]黔南民族师范学院化学与化工系,贵州都匀558000

出　　处：《广东化工》2012年第16期23-24,共2页Guangdong Chemical Industry

基　　金：贵州省教育厅2010年度自然科学研究基金资助项目(黔教科2010094);黔南民族师范学院2011年度中青学术骨干资助项目(QNSY2011)

摘　　要：以乙醇为溶剂提取异形玉叶金花果实,经减压浓缩后,依次用乙酸乙酯和正丁醇进行萃取。用DPPH自由基的清除能力来评价两个部位的抗氧化活性。结果表明,乙酸乙酯部位浓度为283.20μg/mL时自由基清除率大于50%,IC50=304.85μg/mL,正丁醇部位浓度为177.60μg/mL时自由基清除率大于50%,IC50=224.07μg/mL。正丁醇部位抗氧化能力比乙酸乙酯部位更好。The fruit of Mussaenda anomala Li were extracted with the ethanol solvent and were concentrated by vacuum, and followed by the extraction of ethyl acetate and butanol. DPPH radical scavenging capacity was used to evaluate the antioxidant activity of the two parts.The results show that when the parte of ethyl acetate concentration of 283.20μg/mL radical scavenging rate greater than 50 %, IC50=304.85 μg/mL, and part of the concentration of butanol when the radical scavenging 177.60 μg/mL than 50 %, IC50=224.07 μg/mL. Antioxidant capacity ethyl acetate parts better than the butanol.

关 键 词：异形玉叶金花 抗氧化活性 DPPH自由基 清除率 

分 类 号：TQ[化学工程]