Assaying of Total Flavonoids in6Kinds of Gynostemma Made in Guangxi
- VernacularTitle:6种广西产绞股蓝中总黄酮的含量测定
- Author:
Weizhe JIANG
;
Yanwen ZHOU
- Publication Type:Journal Article
- Keywords:
Gynostemma;
Total flavonoids;
Rutin;
UV-spectrophotometry;
Content
- From:
China Pharmacy
1991;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE:To establish a method for the assaying of total flavonoids in the extracts of Gynostemma and to provide basis for the study of its internal quality.METHOD:The contents of total flavonoids in6kinds of Gynostemma made from Guangxi were determined by UV-spectrophotometry with a detection wavelength at510nm.RESULTS:Good linear re-lationship with absorbability occurred when the concentration range of rutin was0.0092～0.0553mg/ml(r=0.9999,n=6)and its average recovery was100.8%(RSD=2.25%,n=6).CONCLUSION:The method is simple and accurate,of the testing samples,Gynostemma from Guangxi ranked the first in terms of the content of total flavonoids.
