Study on membrane extraction method for alkaloids of Ephedra Herba and Rhizoma Coptidis / 中成药
Chinese Traditional Patent Medicine
;
(12)1992.
Article
in Chinese
| WPRIM
| ID: wpr-570431
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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Chinese Traditional Patent Medicine
Year:
1992
Type:
Article
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