Optimization of Water Extraction Process for Preparing Xiefei Pingchuan Ling Granules with Multi-index

Objective To optimize the extract process for preparing xiefei pingchuan ling granules.Methods The three extracting factors as water volume,extracting time,and frequency on the extracting process were studied by comphrehensively evaluating the yield of ephedrine hydrochloride,total anthraquinone,and extractum with orthogonal test of L9(34) method.Results The optimum extracting technologies for preparing xiefei pingchuan ling granules were that by using ten times of water,extracting three times,one hour for each time.Conclusion The optimized process is feasible and stable,which provides experimental evidences for the industrial production.