Title: Prepn process of tripterygium extractive
Application Number: 02155133 Application Date: 2002.12.10
Publication Number: 1506365 Publication Date: 2004.06.23
Approval Pub. Date: 2006.04.12 Granted Pub. Date: 2006.04.12
International Classifi-cation: C07D493/14,C07B63/00,A61K36/37,B01D11/02,A61P19/02,A61P13/12,A61P37/02,A61K125/00,A61K127/00,A61K133
Applicant(s) Name: Zhejiang De'ende Pharmaceutical Co., Ltd. Address: 312560
Inventor(s) Name: Jin Chunhui, Zhang Guolin
Attorney & Agent: shen luyi
Abstract:
     The present invention is the preparation process of tripterygium extractive. The preparation process includes low temperature dynamic countercurrent extraction of tripterygium material with organic solvent, decompressing concentration of the extracted liquid, extraction of the concentrated liquid with organic solvent, normal pressure recovering of organic solvent and vacuum drying to obtain coarse tripterygium extractive. The said process has short extraction period, reduced organic solvent throwing amount, low power consumption for recovering organic solvent, less damage to the effective components of tripterygium, high extraction rate of the effective components and high product quality.
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