摘要
目的研究鼓槌石斛(Dendrobium chrysotoxum)95%乙醇、石油醚、乙酸乙酯、正丁醇、甲醇五种粗提物体外自由基清除活性.方法采用DPPH自由基清除法对云南鼓槌石斛五种提取物的体外自由基清除作用进行研究.结果鼓槌石斛乙酸乙酯粗提物的自由基清除效果最显著,其IC50为0.12 mg/m L.结论鼓槌石斛提取物在体外自由基清除活性方面有一定的应用价值.
Objective To investigate the in vitro radical scavenging activity of extracts from Dendrobium chrysotoxum,including 95％ ethanol,petroleum ether,ethyl acetate,n-butanol and methanol extracts.Methods DPPH radical scavenging activity method was used to research the in vitro activity of five crude extracts.Results The results showed that the ethyl acetate extract exhibited a good scavenging action （IC50 =0.12 mg/mL）.Conclusion The extracts from D.chrysotoxum have a certain value in antioxidant aspect.
出处
《昆明医科大学学报》
CAS
2014年第12期4-6,共3页
Journal of Kunming Medical University
基金
国家自然科学基金资助项目(21202066)
云南省应用基础研究基金资助项目(2012FB156)
关键词
鼓槌石斛
药用植物
自由基清除活性
Dendrobium chrysotoxum
Medicinal plant
Radical scavenging activity
