The contents of polyphenol and flavonoid along with DPPH radical scavenging activity of these extracts were also determined, standing out from the others were the extracts of the rambutan (i) rind with the corresponding results of 199.65 mg GAE / g, 457.44 mg QE / g (on dried weight) and IC50, DPPH = 33.28 µg/mL.