Table 4.

DPPH radical scavenging activities (%) of dried oregano extracts

Concentration(μg/mL)	Oregano	Ascorbic acid	Tocopherol
10	6.65±0.52	94.61±1.21	-
50	5.52±0.88	95.19±1.04	-
100	9.52±0.97	95.21±0.89	-
500	17.21±1.58	94.80±1.08	2.86±0.15
1,000	28.68±2.32	95.27±1.57	17.19±0.44

DPPH, 1,1-diphenyl-2-picryl-hydrazyl.

Values are represented as mean±standard deviation (n = 6).