Antioxidant and antiglycemic potential of Peltophorum pterocarpum plant parts

The leaf and bark extracts of Peltophorum pterocarpum were evaluated for their DPPH, ABTS, and galvinoxyl radicals scavenging activity, phenolic content, α-glucosidase, α-amylase and aldose reductase inhibition, and advanced glycation end-products formation inhibition activities. These extracts showed a far more significant antiglycemic activity compared to the commercial carbohydrate inhibitor, acarbose. The active compound in P. pterocarpum leaf extracts was identified to be quercetin-3-O-β-d-galactopyranoside. Our findings provide a strong rationale for further in vivo studies and to establish P. pterocarpum’s capability as an antiglycemic agent.