Lipid oxidation did not significantly vary during sausage shelf life (0.06 ± 0.01 mg/kg, 0.07 ± 0.01 mg/kg and 0.07 ± 0.01 mg/kg at 0, 3 and 6 months of vacuum storage, respectively). Other studies found significant increases of TBA during ripening (Aguirrezabal, Mateo, Dominguez, & Zumalacarregui, 2000; Bozkurt & Erkmen, 2004), and after 30 days of storage (Aguirrezabal et al., 2000), possibly because in these experiments the products were not stored under vacuum.