Study on membrane extraction method for alkaloids of Ephedra Herba and Rhizoma Coptidis
- VernacularTitle:麻黄及黄连生物碱膜提取方法的研究
- Author:
Chuanhua LU
;
Yong JIA
;
Jusheng ZHANG
;
Quan LI
;
Pingshen HE
- Publication Type:Journal Article
- Keywords:
membrane extraction;
ephedrine;
berberine
- From:
Chinese Traditional Patent Medicine
1992;0(04):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: Extracting ephedrine and berberine from the water extract of Ephedra Herba and Rhizoma Coptidis. Methods: Modified PVA was used as separating membrane and separated alkaloids. Results: A colorless ephedrine aqueous solution was obtained when extraction time was less than 8 hours; while a three constitution solution was obtained when time of extraction is over 8 hours. So is Rhizoma Coptidis. The membrane is hardly fouled. Conclusion: Purity of alkaloids from Herba Ephedra and Rhizoma Coptidis by membrane separation is Superior to that by alcoholic sediment but amount of alkaloids is reverse.
