Chemical constituents and biological activity of some Egyptian members of the leguminosae

ABSTRACT

Preliminary phytochemical screening was carried Out for the three plants under investigation Colutea istria, Alhagi graecorum and Astragalus vogelii Sixteen flavonoidal compounds were isolated and identified asquercetin-3-glucoside; quercetin-3-gentiobioside; quercetin-3,7-diglucoside; isorhamnetm-3-gentiobioside; isorhamnetin-3-rutinoside;kaempferide-3,7-diglucoside; 2',4,4'trihydroxychalcone; 2',4,4',6' tetrahydroxychalcone; formononetin; daidzein; calycosin; cladrin; rhamnocitrin-3-neohesperidoside; rhamnocitrin-3-glucoside; thamnocitrin-3-galactoside and rhamnocitrin aglycone. The volatile constituents were analysed by GC/MS spectrometry, the effect of the alcoholic extracts on the brine shrimp and the antimicrobial activity were carried out