Fig. 1

a HPLC Profile of ethanolic extract of Peltophorum pterocarpum leaf (PTE) with detection at 254 nm using PDA detector. The major bioactive peak at retention time (RT) of 8.514 min that contains mainly quercetin derivatives namely b Quercetin-3-O-β-D-galactoside (hyperoside) and c Quercetin-3-O-β-Dglucuronide (Miquelianin)