(A), scavenging effect of PCPS and FPCPS on DPPH radicals compared with that of Vitamin C (standard control); (B), Scavenging effect of PCPS and FPCPS on superoxide radicals compared with that of Vitamin C (standard control); (C), scavenging effect of PCPS and FPCPS on hydroxyl radicals compared with that of Vitamin C (standard control). Results are expressed as mean ± standard deviation of three parallel measurements. Significant differences from control were evaluated using t-test; *p<0.05, **p<0.01.