DPPH radical scavenging activity (Fig. 5A) was determined for
sample concentrations between 1 and 4 mg/ml for the butanolsoluble
fraction as well as supplementary butanol extracts. The
butanol-soluble fraction (4 mg/ml) exhibited scavenging activity
of 61.66% and 46.54% for white and gold sesame seeds, respectively.
The +1 butanol extract exhibited comparable activity with
value of 62.12% and 32.29% for white and gold sesame seeds,
respectively. However, DPPH scavenging activity gradually
decreased for +2 and +3 butanol extracts for both seed types. Butanol-
soluble fraction also exhibited the highest activity in the ORAC
assay (Fig. 5B) with value of 45.01 and 27.83 lM TE at 100 lg/ml
for white and gold sesame seeds, respectively. Supplementary
butanol extracts also exhibited activity at similar sample concentration
ranges (50 and 100 lg/ml) and activity gradually decreased
as observed in DPPH scavenging assay. These results suggest that