Table 1. Comparison of radical scavenging activities of purpurogallin by gamma-irradiation dose

Irradiation dose (kGy) SC50 values (μg/mL)
DPPH ABTS+ Hydroxyl
0 (control) 17.7±0.3a1) 12.4±0.4a 35.1±0.4a
10 15.5±0.4a 10.7±0.2a 30.9±0.3a
25 12.8±0.5b 4.8±0.3b 25.1±0.2c
50 10.8±0.1c 3.5±0.1c 24.5±0.6c
100 12.7±0.3b 6.6±0.2b 27.3±0.5b
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).