Quantitative Analysis of Diosgenin in Chinese Costus Species by Colorimetric and GC
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Abstract
Diosgenin in 18 samples belonging to 3 species of Costus L. was determined by colorimetric and GC analyses. The results indicated that the content of diosgenin in Costus lacerus rhizome is the highest (0.530%) and the content in C. speciosus C. lacer
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