We used an Oxytherm liquid-phase oxygen electrode system to
investigate the H2O2 scavenging capacity of phenolics extracted
from apple peel. After a 30 min incubation of the mixture of
H2O2 and phenolic extracts, H2O2 concentrations were analysed.
It was found that with increasing concentrations of phenolics,
H2O2 concentrations decreased linearly, indicating that the phenolic
extract could effectively scavenge H2O2 (Figs. 1 and 2). This was
consistent with previous studies where phenolics exhibited strong
antioxidant abilities (Rhodes, 1996; Shahidi et al., 1992).