Study on ethanol extraction technique of Pushaoqianliexianyan Capsules

Objective To optimize the conditions of the extraction technique for Pushaoqianliexianyan Capsules.Methods The ethanol extraction technology was studied by using orthogonal experiment,with content of Tanshinone ⅡA and Paeoniflorin as research index.Four factors were investigated including the concentration of ethanol,the volume of ethanol,the extraction time and the number of extracting times.Results The optimum condition of ethanol process for Pushaoqianliexianyan Capsules was that the crude herb powder was extracted by 3 times with 6-fold 80% ethanol for 1hour.Conclusion The optimized process can be used for enlarged production with good repeatability and stable quality in samples.