Study on the extraction technology of total flavonoids from Jinqi Jiangtang Tablets presciption
In this paper,ethanol reflux extraction method was used to extract total flavonoids from Jinqi Jiangtang tablet formula,and the total flavonoids extraction amount was taken as an index.Three factors that had a greater influence on the total flavonoids extraction amount of Jinqi Jiangtang tablet formula were selected through the results of single factor experiment,and orthogonal experiments were conducted.The optimal extraction scheme was as follows:the ethanol volume fraction of 25%,solid-liquid ratio of 1∶20,soaking time of 1.75h,extraction time of 1.5h and extraction temperature of 65℃,the total extraction amount of flavonoids was 8.303mg·g-1.
total flavonoidsJinqi Jiangtang tabletsethanol reflux extractionextraction optimizatio
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