[Identification and evaluation of TCM shayuanzi].
OBJECTIVE
To understand the varieties of Shayuanzi on sale and establish the method for evaluating its quality.


METHODS
22 samples collected from all over the country were identified by TLC and the contents of total flavone in them were determined with UV.


RESULTS
All samples could be classified into three varieties, and they could be identified by TLC. The contents of total flavone in them were 0.3%-1.0%.


CONCLUSIONS
Shayuanzi on sale mainly includes Astragalus complanatus, and there are A. adsuragen and A. sinicus as well. TLC is a better method for the identification of shayuanzi. The total flavone in A. complanatus is 0.33%-0.82%.
Zhang
Yu-jie
YJ
Beijing University of Traditional Chinese Medicine, Beijing 100102, China. yjzh@263.net
Zhang
Jian-jun
JJ
Yan
Xing-li
XL
Zhang
Rui
R
Tang
Yu
Y
Liu
Ying
Y
D027883:Astragalus Plant / Q000737:chemistry* / Q000145:classification; D002855:Chromatography, Thin Layer; D004340:Drug Contamination; D047309:Flavones; D005419:Flavonoids / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D012639:Seeds / Q000737:chemistry; D013045:Species Specificity
D047309:Flavones; D005419:Flavonoids; C043562:flavone