Fresh pork bacon belly was used as material and manufactured into dry-salted bacon through salting and
drying–ripening. During processing both oxidative stability and antioxidant enzyme stability were evaluated
by assessing peroxide value (PV), thiobarbituric acid reactive substances (TBARS) and activities of
catalase, glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD), and their correlations were
also analysed. The results showed that all antioxidant enzyme activities decreased (p < 0.05) until the end
of process; GSH-Px was the most unstable one followed by catalase. Antioxidant enzyme activities were
negatively correlated with TBARS (p < 0.05), but the correlations were decreased with increasing process
temperature. Salt showed inhibitory effect on all antioxidant enzyme activities and was concentration
dependent. These results indicated that when process temperature and salt content were low at the same
time during dry-salted bacon processing, antioxidant enzymes could effectively control lipid oxidation.