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Abstract

TLC-Colourimetric Estimation Of Free And Combined Forms Of Chrysophanol, Emodin And Physcione In Indian Rhubarb.

Author(s): Khan Mohib, M.S Shingare

TLC-colourimetric method was employed for the estimation of free and combined forms of chrysophanol, emodin and physcione in lndian rhubarb. It was found that lndian rhubarb contains free chrysophanol (0.15 %), O-glycosidic chrysophanol (0.06%), C-glycosidic chrysophanol (0.21%), free emodin (0.07 %), O-glycosidic emodin (0.30 %), C-glycosidic emodin (0.08 %),free physcione (0.40 %), O-glycosidic physcione (0.18 %) and C-glycosidic physcione (0.17 %).