Table 3.

The IC₅₀ value of propolis samples vs. ascorbic acid (best-fit values *).

Propolis	P1	P2	P3	P4	P5	P6	P7	P8	Ascorbic Acid
IC50 ± SEM (mg/mL)	0.3292 ± 0.0035	0.0700 ± 0.0132	0.3439 ± 0.0059	0.2586 ± 0.0089	0.4770 ± 0.0127	0.9320 ± 0.0760	0.5039± 0.0234	0.2925 ± 0.0092	0.0757 ± 0.0037
R2	0.9993	0.9993	0.9989	0.9962	0.9899	0.9945	0.9979	0.9993	0.9531
Hill Slope	3.073	0.9313	2.111	2.128	4.299	2.649	2.679	2.663	5.869

* log inhibitor vs. normalized response, variable slope.