Optimization of Extraction Technique of Prescription of Traditional Chinese Medicine——Xionggui Powder

Objective:To optimize the conditions of the water extraction and ethanol sedimentation technique for.Methods: The factors of affecting extraction of effective including the soak of Med Mat,the added amount of water,the concentration of ethanol,sedimentation time,density of water extraction were studied by orthogonal design with the yield rate of ferric acid and caffeic acid.Results:The most significant effective factors were the times of extraction,the amount of water,sedimentation time.The optimum condition for the extraction of Xionggui powder was that doused with 95% ethanol for 30 min, extracted 3 times,0.5 h for extraction process and 10 times weight of water of material media;the density of water extraction was 1.07,the concentration of ethanol was 70%,the sedimentation time was 12 h.Conclution: The result was reliable.