Studies on Unutilized Resources. VI. : The Components of the Flavonoids in Vicia Genus Plants. (1). Flavonoids of Vicia Faba L. and V.unijuga AL. BR. (Leguminosae)

Abstract

From the standpoint of chemotaxonomical studies, components of flavonoids in the leaves of Vicia genus plants (Leguminosae) were examined. Ethyl acetate extract of the fresh leaves of Vicia Faba L. afforded kaempferol-3-glucoside-7-rhamnoside as pale yellow needles, mp 231-234°, that of Vicia unijuga AL. Br. afforded cosmosiin (apigenin-7-glucoside) as pale yellow needles, mp 226-228°, and luteolin-7-glucoside as pale yellow needles, mp 242-243°.