[Studies on the optimized extraction technology of Paeonia suffruticosa].

Objective: To obtain the optimized extraction technology of Paeonia suffruticosa by comparing several extraction method.

Method: Extract P. suffruticosa by ethanol circumfluence, distillation-decoction, CO2-SFE and traditional decoction, and analyse the results according to the total extraction rate, extraction rate of paeono, extraction of other ingredients and production feasibility.