Optimization of Condition for Maximum Recovery of Antioxidants from Cephalotaxus sinensis and their FRAP Assay

In this study, Cephalotaxus sinensis (Rehd et Wile) Li (Cephalotaxaeeae), plant was examined for phenolic constituents and antioxidant capacity, to determine their potential as a source of naturat antioxidants. Total polyphenol content (TPC) were determined spectrophotometrically, after extraction of ptant material with assorted solvents at 80degC for 3 hour. Antioxidant activity of aqueous extracts and fractions were evaluated by FRAP assay. The highest antioxidant activity was observed in the extract of 80% aq. ethanol followed by fractionation with 40% (v/v) aq. ethanoi using AB-8 resin, which had soaring leveis of potyphenot. Resutts strongty suggested that potyphenot content shoufd be considered as an imperative feature of Cephalotaxus sinensis ptant and demonstrate a impending for exptoit as natural antioxidants.