Study on Process for Extraction of Zhike Granules by Orthogonal Test

Objective To optimize the extracting techniques of Zike granules.Methods The extraction technique was selected by orthogonal method,with the contents of ephedrine as index,the influential factors for the extraction of effective ingredients that included the amount of adding water,length of decocting time and frequencies of decocting were studied.Results The optimal extraction is as follows: adding 12 times amount of water and boiling for 60 min each time,extracting three times in all.Conclusion The optimal extraction technique was stable and feasible.