Isolation and Characterization of β-Sitosterol-3-O-β-D-glucoside from the Extract of the Flowers of Viola odorata

Isolation from the ethanol extract of the flowers of Viola odorata resulted in the isolation of βSitosterol-β-D-glucoside. This compound has not been previously isolated or reported from the flowers of this variety. The isolated β-Sitosterol-3-O-β-D-glucosidewas characterized on the basis of spectroscopic techniques viz. infrared and nuclear magnetic resonance spectroscopy. A tetra acetyl derivative of β-Sitosterol-3-O-β-D-glucoside was synthesized and characterized. On hydrolysis of β-Sitosterol-β-D-glucoside, β-sitosterol was obtained and characterized.