Identification of Fritillaria herbal drugs by X-ray diffraction of starch grains.
- Author:
Shu-Jun WANG
1
;
Wen-Yuan GAO
;
Jiu-Gao YU
;
Pei-Gen XIAO
Author Information
- Publication Type:Journal Article
- MeSH: Crystallization; Fritillaria; chemistry; classification; Plant Roots; chemistry; Plants, Medicinal; chemistry; classification; Species Specificity; Starch; analysis; X-Ray Diffraction
- From: China Journal of Chinese Materia Medica 2005;30(11):805-807
- CountryChina
- Language:Chinese
-
Abstract:
OBJECTIVETo provide a simple method to identify different of herbal drugs of Fritillaria.
METHODThe X-ray diffraction spectra of five Fritillaria powders were obtained by X-ray diffractometry (XRD).
RESULTBy analyzing the diffraction peaks of starch over the 2theta diffraction angle in the range of 10 degrees-30 degrees, we concluded that the crystal type of starch in F. thunbergii, F. ussurensis, F. pallidifloca and F. hupehensis was B-type. However, the crystal type of starch in F. cirrhosa was CB-type. The degree of crystallinity of starch was 42.1%, 43.6%, 37.7%, 35.9% and 30.8%, corresponding to F. thunbergii, F. ussurensis, F. pallidiflcoca,F. cirrhosa and F. hupehensis.
CONCLUSIONBased on the differences of crystallinity of starch and X-ray diffraction spectra of Fritillaria powders, different species of Fritillaria can be identified.
