A similar increase observed over time in other studies has been attributed to deteriorative reactions (microbiological and enzymatic) (Brannan, 2008) or high O2 levels in packs (Sun & Holley, 2012). After day 12 of storage period, only RP among other treatments indicated a
reducingeffect of TBARS values. This may be due to the low fat content that decreases the substrate for oxidation. The presence of RP at both levels reduced (P b 0.001) lipid oxidation relative to control throughout storage.