Optimization of the Extraction Technology for Gengniankang Granules with the Multiple Guidelines Grading Method

Objective To optimize the extraction technology for Gengniankang Granules.Methods An orthogonal test was adopted in the study.The contents of Paeoniflorin and Astragaloside Ⅳ were used as indices of appraisal.Data processing was carried out with the multiple guidelines grading method for optimizing the extraction condition.Results The optimized extraction technology for Gengniankang Granules was shown to be:eighteen fold volume of 70% alcohol should be added to 1 volume of the granules for 3 successive reflux extractions with 1.5 h of each.Conclusion The optimized extraction technology was rational and the extraction rate of the active components was high.