Table 2. Radical scavenging activities of newly-generated product from purpurogallin by gamma irradiation

Compounds SC50 values (μM)
DPPH ABTS+ Hydroxyl
Purpurgallin (1) 65.1±1.0a1) 36.3±0.6a 124.9±1.7a
Pyrogallol (2) 9.5±0.3c 12.6±0.4b 48.1±0.9c
(+)-Catechin2) 22.4±0.7b 14.7±0.5b 60.9±1.4b
Scavenging activities are expressed as the mean±SD of triplicate experiments. Different letters (a-c) within the same column indicate significant differences (p<0.05).
(+)-Catechin was used as a positive control.