Fig. 1. Scavenger effect of propolis extract (with and without CAPE) (0.75, 1.5 and 3 mgyml), CAPE
(0.03, 0.06 and 0.12 mM) and galangin (4, 8 and 16 mM) on O , expressed as percentage of inhibition y2
of NADH oxidation; rate of O production was 4 nmoleymin. Superoxide dismutase (SOD) (80 mUyml) y2
was used as a standard. Each value represents the mean"S.D. of five experiments.