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Xanthine oxidase inhibitory activities of the extracts and eluted parts by solvent and macroporous resin column separations. Data represent mean ± S.D. of triplicate experiments. PFLT: An aqueous extract from the P. frutescens leaves; PFLTH: Water extract; PFLTB: n-butanol extract; PFLTB-A: Water eluted part; PFLTB-B: 70% ethanol eluted part.
