宣木瓜中齐墩果酸清除自由基研究  

Study on Free Radical Scavenging of Oleanolic Acid from Xuancheng Papaya

作　　者：盛侠[1] 任琪[1] 张桂敏[1] 刘素果[1] 温媛媛[1] 丁之恩[1] 

机构地区：[1]安徽农业大学,安徽合肥230036

出　　处：《经济林研究》2009年第4期73-76,共4页Non-wood Forest Research

基　　金：国家自然基金项目部分内容"山核桃等经济林木生物活性成分及抗氧化特性研究"(30571520)

摘　　要：以宣木瓜为材料,对齐墩果酸进行定性研究,并对齐墩果酸清除羟自由基(OH)、超氧阴离子自由基(O_2·-)的作用做了研究。薄层层析结果表明宣木瓜中含有齐墩果酸;自由基清除试验结果表明宣木瓜中齐墩果酸对羟自由基(OH)和超氧阴离子自由基(O_2·-)有较好的清除效率,并且清除率与浓度具明显的量效关系,当宣木瓜中齐墩果酸浓度为1.0 mg·mL^(-1)时,清除效率分别为65.9%和63.83%。Qualitative research on oleanolic acid were conducted taking Xuancheng papaya as materials, and its function in scavenging of hydroxy radical （·OH） and superoxide anion radical （O2·-） were also studied. The results Of thin layer chromatography indicated that the Xuancheng papaya contained oleanolic acid. The results of free radical scavenging showed oleanolic acid in the Xuancheng papaya performed effectively in the scavenging of hydroxy radical （·OH） and superoxide anion radical （O2·-）, there was a dose-effect relationship between scavenging efficiency and concentration. The scavenging efficiency was 65. 90% and 63. 83% respectively when the concentration of oleanolic acid was 1.0 mg · mL^-1.

关 键 词：宣木瓜 齐墩果酸 薄层层析法 清除自由基 

分 类 号：Q949.751.5[生物学—植物学]