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.