Comparative antioxidant potential and total flavonoids in different extracts of pericarp and pulp of Garcinia cowa Roxb.

Abstract

The antioxidant and total flavonoid content (TFC) of solvent extracts of pericarp

and pulp of

Garcinia cowa Roxb. were evaluated. The antioxidant activity

was evaluated using 2, 2

â€Âdi phenylâ€Â1â€Âpicrylhydrazyl (DPPH) free radical

scavenging assay and beta carotene linoleate bleaching (

βCL) assay. Ascorbic

acid and butylated hydroxyl toluene (BHT) were used as the standards. The

ethyl acetate extract of the pulp showed the highest inhibition (89.5 ±

0.81%) of DPPH radical, along with the highest antioxidant activity (75.1 ±

0.60%) in

βCL assay and the highest total flavonoid content 67.4 ± 1.41 mg

catechin equivalent (CE)/100g fresh mass at 1000ppm concentration.