TY  - JOUR
AU  - Shujun, Wang 
AU  - Jinglin, Yu 
AU  - Wenyuan, Gao 
PY  - 2005
TI  - Use of X-Ray Diffractometry (XRD) for Identification of Fritillaria According to Geographical Origin
JF  - American Journal of Biochemistry and Biotechnology
VL  - 1
IS  - 4
DO  - 10.3844/ajbbsp.2005.199.203
UR  - https://thescipub.com/abstract/ajbbsp.2005.199.203
AB  - Fritillaria is a traditional Chinese herbal medicine for anti-tussive and expectorant use in
China and some other Asian countries. The Fritillaria Chinese medicine material derived from
different geographical origins is always difficult to discriminate each other. The objective of the study
is to develop a nondestructive and simple method to identify five Fritillaria Chinese materia medica
such as Fritillaria thunbergii Miq., Fritillaria ussurensis Maxim., Fritillaria cirrhosa D.Don,
Fritillaria pallidifloca Schrenk and Fritillaria hupehensis Hsiao et KC Hsia. X-ray diffraction was
utilized to analyze the discrepancy of the Fritillaria from different geographical origins. Because
Fritillaria consists of plenty of starch, which is a very good semicrystalline macromolecule, the X-Ray
diffraction spectra of Fritillaria powders mainly showed the crystalline properties of starch. The
differences in starches crystallinite could be distinguished by X-ray diffraction spectra. X-ray
diffraction is proved to be a new and powerful method to discriminate Fritillaria from different
geographical origins.