摘要
目的:采用二苯基苦基苯肼(DPPH)法研究罗汉果植株茎、叶和果实的抗氧化活性。方法:采用超声提取法分别对罗汉果植株茎、叶和果实进行乙醇提取;采用分光光度法测定各提取物对DPPH的清除能力。结果:罗汉果植株茎、叶、果实对DPPH的半清除率(IC50值)分别为0.756,0.119,0.358 g.L-1。结论:罗汉果植株3个器官均有抗氧化活性。其中,叶的抗氧化能力最强。
Objective：The antioxidant activity of siraitia grosvenorii leaves,stems and fruits was studied by 2,2-diphenyl-l-picrylhydrazyl（DPPH） method.Method： The stems,leaves and fruits of siraitia grosvenorii were extracted with ethanol by ultrasonic extraction,and the DPPH clearing rate of different extracts was determined by spectrophotometry.Result：Half clearance of scavenging effect on radical DPPH by three parts including stem,leaf and fruit from Siraitia grosvenorii,i.e.IC50,was 0.756,0.119,0.358 g.L-1 respectively.Conclusion： Extracts from three parts of Siraitia grosvenorii have antioxidant activity.The leaf owns the strongest antioxidant capacity.
出处
《中国实验方剂学杂志》
CAS
北大核心
2011年第4期176-178,共3页
Chinese Journal of Experimental Traditional Medical Formulae
基金
中国博士后科学基金资助(20100471126)
