Uber die Isolierung von Sitosterin-(6'-O-acyl)-β-D-glucopyranosiden aus Flacourtia indica und über unerwartete Gelbildungen durch das Triacetat / On the Isolation of Sitosterin-(6'-O-acyl)-β-D-glucopyranosides from Flacourtia indica and on Unexpected Formation of Gels by the Triacetate

Abstract

Abstract A mixture of the title compound-(6′) stearate, margarate, palmitate, linolate, and linole- nate (2a-e) was isolated from shredded dried leaves and twigs of Flacourtia indica. The margarate was observed for the first time. 0.5% solutions of the triacetate mixture (1a-e) in methanol or ethanol give “solid" gels stable for months. From these the unchanged triacetates 1a-e can be recovered indicating that this low-molecular material is responsible for the formation of the gel.