ANTIOXIDANT AND ANTIMICROBIAL ACTIVITY OF A NEW ISOFLAVONE GLYCOSIDE FROM THE ROOTS OF Prosopis Spicigera Linn
R. N. Yadava* and Prakrati Yadav
Abstract
A new Isoflavone glycoside 5, 7, 4 trihydroxy-6-methoxyisoflavone-
7-O-α-L-rhamnopyranosyl(14)O-α-L-arabinopyranosyl-4-O-β-Dxylopyranoside
(A) was isolated from the roots of prosopis spicigera
Linn. together with two known compounds Wogonin (B) and
Diosmetin (C). The structure A was elucidated on the basis of various
chemical degradations, color reactions and spectroscopic analysis viz.
UV, IR, 1H NMR and 13C NMR. Compound A exhibited higher
radical scavenging activity in the 1,1-diphenyl-2-pycryl-hydrazyl
(DPPH) assay system and also screened against various bacteria and
fungi.
Keywords: Prosopis spicigera Linn, Leguminosae, Isoflavone glycoside, Antioxidant activity, Antimicrobial activity.
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