Studies on the Plant Sterols and Triterpenes. II. Separation of Stigmasterol, β-Sitosterol and Campesterol, and about So-called "γ-Sitosterol."

Abstract

The sterols from Xanthii Fructus and Phellodendri Cortex were reinvestigated using gas chromatography. Gas chromatographically pure stigmasterol. β-sitosterol and campesterol were obtained by a repeated recrystallization of either acetate or benzoate of the sterol mixture. γ-Sitosterol isolated from Phellodendri Cortex and also from soybean was found to be a mixture of campesterol and β-sitosterol (1 : 1).