Identification of the phenolic components of Vernonia amygdalina and Russelia equisetiformis

Abstract

The leaves of Vernonia amygdalina (Family-Compositae) and Russelia equisetiformis (Family-Scrophulariacae), were analyzed using LC-DAD-MS to identify 26 phenolics components. Among them, 9 caffeoylquinic acids, verbascoside, isoverbascoside and 7 glycosylated flavonoids were positively identified. This is the first report of the existence of caffeoylquinic acids in Vernonia amygdalina and most of the flavonoids in Russelia equisetiformis.