Study on recovery of ethyl acetate after extracting tripterygium wifordii extractum with ethyl acetate.
- Author:
Xue-dong BAI
1
;
Li-xing ZHANG
;
Tao CHEN
;
Guan-zhong LI
;
Xue-hai WANG
;
Wei-guo ZHANG
Author Information
- Publication Type:Journal Article
- MeSH: Acetates; Drugs, Chinese Herbal; isolation & purification; Plants, Medicinal; chemistry; Sodium Chloride; Technology, Pharmaceutical; economics; methods; Tripterygium; chemistry
- From: China Journal of Chinese Materia Medica 2003;28(3):226-228
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo increase the recovery rate of ethyl acetate after extracting tripterygium wifordii extractum and to decrease product cost.
METHODAfter extracting tripterygium wifordii extractum with ethyl acetate, 3 times saturated salt water was added in it so as to recovery ethyl acetate distilled under normal atmospheric pressure. Ethyl acetate containing salt water was purified through Na2SO4 column.
RESULTEthyl acetate purified could be used repeatedly and the recovery rate was up to 85%.
CONCLUSIONThis method is completely adapted for mass production.
