The method reported by Shimada, Fujikawa, Yahara, and Nakamura (1992) was adapted to measure free radical scavenging capability. To each 1 mL of sample solution at different concentrations (0.31–5.00 mg/mL), 1 mL of freshly prepared methanolic dimethyl sulfoxide (DMSO) solution of DPPH (0.325 mM) was added. This was mixed well and then left standing for 30 min at room temperature in the dark. The absorbance ofthe resulting solution was recorded at 517 nm. BHA was used as a reference material. All tests were preformed in triplicate. Scavenging activity was calculated as follows: