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ABSTRACT

Effects of antioxidants on stability of lipids in restructured chicken nuggets were investigated. Lipid oxidation during refrigerated and frozen storage was monitored by a modified thiobarbituric acid (TBA) test, sensory evaluation and chromatographic analysis. TBA-reactive substances (TBARS) values and sensory scores demonstrated that STPP/ OR was comparable to STPP/TBHQ in protecting refrigerated and frozen chicken nuggets. STPP or OR alone was less effective than OR/STPP combinations in both studies. STPP/OR and STPP/TBHQ also effectively retarded oxidative degradation of polyunsaturated fatty acids in chicken nuggets during frozen storage. No apparent beneficial effects on oxidative stability of the chicken nuggets were observed by adding OR to the frying oil.