Study on Quality Standard of Lithocarpus polystachys
- VernacularTitle:甜茶质量标准研究
- Author:
Song HUANG
;
Mingli LUO
;
Yan TAO
;
Jihang CHEN
;
Wei ZHAO
;
Xiaoping LAI
- Publication Type:Journal Article
- Keywords:
Lithocarpus polystachys;
Quality standard;
Total flavonoids;
Phlorizin;
TLC;
UV spectrophotometry;
HPLC
- From:
China Pharmacy
2005;0(23):-
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVE: To establish the quality standard of Lithocarpus polystachys.METHODS: TLC was used for the qualitative identification of L.polystachys.The content of total flavonoids of L.polystachys was determined by UV spectrophotometry and the content of phloridzin was determined by HPLC.RESULTS: The TLC spots of polyamide were clear and well separated.The maximum absorption wavelength of phlorizin was 284 nm.The content of total flavonoids of 6 batches of L.polystachys ranged from 103.12 mg?g-1 to 183.54 mg?g-1.The linear ranges of phlorizin were 0.099 8～1.197 6 ?g (r=0.999 7) with an average recovery of 97.23%(RSD=1.57%,n=6).CONCLUSION: Established quality standard is applicable for the quality control of L.polystachys.
