Hydroperoxides are primary oxidation products that determine the
extent of lipid oxidation at the initial stages of oxidation (Teets &
Were, 2008). Fig. 2b presents the changes in the concentrations of
hydroperoxides of the frozen pork patties during their storage at
−18 °C for 180 days. In the control group, the mean concentration of
hydroperoxides increased from 0.89 to 5.46 meq/kg meat after
60 days of storage and decreased thereafter to 3.14 and 2.84 meq/kg
at 120 and 180 days, respectively. A similar but less intense profile
was exhibited by the TP100 group. These increases were probably due