Title: Studies on the Extraction and Antioxidant Activity Evaluation of the flavoniods from the leaves of Acanthopanax senticosus
Abstract: 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.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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