Study of the Major Flavonoids from Guiera senegalensis by UV-Visible Spectroscopy

Abstract

phytochemical screening of the ethanolic extract of Guiera senegalensis leaves revealed the the presence of flavonoids, alkaloids, glycosides, tannins, saponnins and terpines. the ethanolic extract of Guiera senegalensis leaves was purified by a silica gel column eluted with chloroform:methanol(3:2). .The characterization of isolate was accomplished by UV studies; the UV data suggested a pattern characteristic of aurones. The following tentative structure was proposed: