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[Studies on the optimized extraction technology of Paeonia suffruticosa]
Li Wang1, Shi-Xiang Hou, Ping Hu
1West China School of Phamnacy, Sichuan University, Chengdu 610041, China.
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.
Result:
Total extraction rates of which are 12.66%, 13.51%, 7.28%, 7.56% respectively; extraction rates of paeonol are 2.45%, 2.26%, 0.31%, 1.15% in turn; Phenolic glycosides can be extracted by ethanol circumfluence, distillation-decoction, traditional decoction, but not by CO2-SFE.
Conclusion:
Distillation-decoction is the most proper extraction technology of P. suffuticosa at present.
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