NATURAL ANTIOXIDANT (FLAVONE GLYCOSIDE) FROM SESBANIA ACULEATA PERS. AND ITS POTENTIAL ACTIVITYAbstract
This paper deals with the significance and importance of medicinal plants.New flavone glycoside A, m.p. 222-224oC, m.f. C34H42O20, [M+] 770 (FABMS) has been isolated from the stems of Sesbania aculeata Pers. along with three known compounds Kaempferol 3-O-a-L-rhamnopyranosyl-(1®2)-b-D-glucopyranoside, (B) and Mearnsetin-3-O-a-L-rhamnopyranoside (C) Gehuain(isoflavone) (D). The compound A was characterized as 5, 7, 8-trihydroxy-6, 4’-dimethoxy flavone-7-O-a-L-rhamnopyranosyl-1®4)-O-b-D-xylopyranosyl-(1®4)-galactopyranoside by various chemical degradations and spectral analysis. Compound was subjected to antioxidant, antibacterial activity. Compound A showed potent antioxidant activity, of which the methanol and chloroform fraction demonstrated the strongest. Antioxidant activity with the IC50 value of 52.40 μg/ml and 60.15 μg/ml, respectively.
D.K. Satnami and R.N. Yadava
Natural Products Laboratory, Department of Chemistry, Dr. Hari Singh Gour University, Sagar (M.P.) 470 003, India
11 April, 2012
27 May, 2012
22 July, 2012
01 August, 2012