On the Optimization of Extraction Conditions of Tetrandrine and Demethyltetrandrine from Fourstamen Stephania (Stephania tetrandra)
- VernacularTitle:粉防己中汉防己甲素和乙素提取条件的优化
- Author:
Pan ZHEN
;
Peirong CHEN
- Publication Type:Journal Article
- From:
Chinese Traditional and Herbal Drugs
1994;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Several factors influencing the extraction of tetrandrine and demethyltetrandrine from Chinese medicinal herbs, Stephania tetrandra S. Moore were studied by means of Ortogonal method. The optimum Condition was eight hours steeping, in 33.3% ammonia in absolute alcohol for four hours under ultrasonic agitation. Tctrandrine aud demethyltetrandrino were detected by HPLC. The contents were 0.678% and 0.616%, the detection limits were 3.87?10-3and 0.48?10-3 mmol/L respectively.
