Identification and evaluation of TCM shayuanzi / 中国中药杂志

ABSTRACT

<p><b>OBJECTIVE</b>To understand the varieties of Shayuanzi on sale and establish the method for evaluating its quality.</p><p><b>METHOD</b>22 samples collected from all over the country were identified by TLC and the contents of total flavone in them were determined with UV.</p><p><b>RESULT</b>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%.</p><p><b>CONCLUSION</b>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%.</p>