α-Spinasterol, α-spinasteryl acetate and some higher fatty acids from the petroleum ether extract of the root of Homonoia riparia

Abstract

The unsaponifiable matter collected from the petroleum ether ext. of H. riparia root after allowing this ext. to stand overnight at a low temp. was identified as α-spinasteryl acetate (I). The saponifiable fraction of the ext. contained myristic 12.94, palmitic 26.61, stearic 23.49, and oleic acid 33.64%. The sapon. no., I no., and acid no. were also studied.