Isolation of lupeol from the stem bark of Leptadenia hastata (Pers.) Decne

Abstract

Dried stem bark powder of Leptadania hastata was subjected to maceration with methanol to afford crude methanol extract, which was partitioned with n-hexane, ethylacetate, chloroform and n- butanol to afford different their respective fractions. Extensive phytochemical screening of the n-hexane fraction using column chromatography resulted to the isolation of a white solid substance. The substance was identified as of lupeol using IR, 1D – NMR, 2D – NMR data and by comparison with reference spectral data.

Keywords: Leptadenia hastata, Isolation, Lupeol, 1D – NMR, 2D – NMR