DPPH. scavenging activity of different plant materials as affected by extracting methods is depicted
in Table 5. Absorbance in this assay was recorded at 0.5 to 10 min time intervals from initiation of the
reaction. Observed scavenging activity was similar at the beginning of the reaction and changed with
increase in the reaction time until it stabilized by the 10th min. Significant (p< 0.05) differences of
DPPH. scavenging capacities among extracts were observed at 5th minute of the reaction. The DPPH.
scavenging ability of the sample extracts was reported as the percent of DPPH. scavenged (% DPPH.
scavenging). As expected, a higher percent of DPPH. scavenging is correlated to a higher antioxidant
activity [15,20].