Abstract:
Phytochemical screening of the alcoholic extraction of the
orange peels indicate the presence of flavonoids, alkaloids
and glycosides.it was decided to investigate the flavonoids
of this herb due to their medicinal value and relative
abundance.
The crude product obtained from the alcoholic extract was re
extracted with chloroform ,butanol and ethyl acetate . the
chloroform extracte gave positive test of flavonoids .
The
chloroform
extracte
was
subjected
to
paper
chromatography , which indicated the presence of one major
flavonoids .
This flavonoids was obtained in the pure state by preparative
paper chromatography .The spectral studies (UV-IR) of this
flavonoids indicated that it is Adihydroflavonols.
IR spectra (KBr) Showed
3384.84 (OH) , 1610.45(C=O) ,
1049.20 (C-O) , 1454.23,1419.51 (C=C Ar) and 2927.74
cm -1 ( C-H aliph)
UV spectra showed λ max 330 for the compound
