Lipolysis has been considered to be a promoter of lipid oxidation due to the accumulation of free fatty acids (FFA) that were prone to lipid peroxidation, particularly long-chain unsaturated FFA (Morcuende, Estévez, Ruiz, & Cava, 2003). Thus, storage at higher temperatures might allow meat products to produce more FFA than would be produced at low storage temperatures. Park et al. (2007) reported that FFA values in frozen pork meat were not affected by packaging method (air and vacuum) and storage time.