果上叶总多酚体外抗氧化活性研究  

Study on antioxidant activity in vitro of total polyphenol from Bulbophyllum odoratissimum(J.E. Smith) Lindl.

作　　者：苟体忠[1,2] 唐文华[1,2] 曹晖[1,2] 徐绍琴 孙大方[1] 

机构地区：[1]凯里学院化学与材料工程学院,贵州凯里556011 [2]凯里学院应用化学研究所,贵州凯里556011 [3]凯里学院继续教育学院,贵州凯里556011

出　　处：《中华中医药杂志》2015年第7期2480-2482,共3页China Journal of Traditional Chinese Medicine and Pharmacy

基　　金：贵州省教育厅优秀人才项目(No.黔教合KY字[2012]099号);凯里学院重点学科"分析化学"(No.院通字[2014]157号)~~

摘　　要：目的:研究果上叶总多酚的体外抗氧化活性。方法:采用总抗氧化能力、OH·清除率、DPPH·清除率来考察果上叶总多酚的体外抗氧化活性。结果:果上叶总多酚总抗氧化能力高于VC,且果上叶总多酚的OH·清除率远高于VC。此外,果上叶总多酚对DPPH·的IC50(22.1μg/m L)与VC(17.6μg/m L)相近。结论:果上叶总多酚是天然的抗氧化活性剂。Objective： To study the antioxidant activity in vitro of total polyphenol from Bulbophyllum odoratissimum（J.E. Smith） Lindl.（BO）. Methods： The antioxidant activity in vitro of total polyphenol from BO was evaluated by total antioxidant activity, hydroxyl and DPPH free radical scavenging activity. Results： The results showed that the total antioxidant activity and hydroxyl free radical scavenging activity of total polyphenol from BO were much higher than VC. In addition, the half-maximal inhibitory concentration（IC50） for DPPH free radicals of total polyphenol from BO and VC was similar, which was 22.1 and 17.6μg/m L, respectively. Conclusion： The total polyphenol from BO is an effective and natural antioxidant.

关 键 词：果上叶 总多酚 抗氧化活性 

分 类 号：R284.1[医药卫生—中药学]