Abstract:
In this study Three plants species from eastern and western Sudan
were studied: Namely Acacia nubica benth( Laot), Citrus paradisi
(grapefruit ) and Combretum Hartmonnina Schweinf (Habeel ).
The plant material was extracted using 95% ethanol.The crude
extracts were subjected to a phytochemical screening which revealed
the presence of flavonoids among other phytochemicals .The crude
extracts were purified by thin layer chromatography utilizing different
solvent systems ,and characterized using : IR,UV,1HNMR and Mass
spectroscopy .
Aflalavonoid :7,5´,6´- trihydroxy-5-methyl-isoflavone was isolated
from the bark of Combretum Hartmonnina Schweinf (Habeel ),
5,7,4´,5´-tetrahydroxy-6,8,1´,2´,6´-pentamethoxyflavanone was isolated
from the leaves of Acacia nubica and7-oglycosyl-5,4´ -
dihydroxyflavanone was isolated from the leaves of Citrus paradise.
The isolated flavonoids revealed promising antimicrobial potential.
