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《Liaoning Journal of Traditional Chinese Medicine》 2011-08
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Studies on the Extraction and Antioxidant Activity Evaluation of the flavoniods from the leaves of Acanthopanax senticosus

LIU Wen-chuang,LIU Chun-ming,LU Juan,WANG Duo(Changchun Normal University,Changchun 130032,JiLing,China)  
Objective:The extraction methods of Flavonoids have been studied,and the extraction process has been optimized.And then,the antioxidant activity of total flavonoids extract against DPPH and hydroxyl radical has been evaluated.The experimental.Methods:Results:show that the ultrasonic extraction method is best by compared with the reflux method and accelerated solvent extraction and extraction,and the optimization extraction conditions are as follows:ethanol concentration is 50%,extraction time is 1.5h,extraction times is 2 times,solvent times is about 20 times.The extraction rate is 5.192%.The removal capacity of the extract on DPPH and OH radical is best.With the.Conclusion:increasing,the removal capacity is increasing.
【Fund】: 国家自然科学基金(30970299);; 吉林省科技厅(20090936 200905109);; 吉林省教育厅(2009D206 2008-167 2008-170)
【CateGory Index】: R284.2
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