Isolation and Characterization of β-Sitosterol-3-O-β-D-glucoside from the Extract of the Flowers of Viola odorata
Tania Peshin
University School of Medicine and Para-Medical Health Sciences, Guru Gobind Singh Indraprastha University, Sector 16-C, Dwarka, Delhi, India.
H. K. Kar *
Department of Dermatology, Paras Hospital, Gurugram, India.
*Author to whom correspondence should be addressed.
Abstract
Isolation from the ethanol extract of the flowers of Viola odorata resulted in the isolation of β-Sitosterol-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.
Keywords: Aglycone, glycoside, phytosterol, sitosterol, Viola odorata.