Evaluation of oxidative stability of lamb burger with Origanum vulgare extract
2017
Abstract The objective was to evaluate replacement of sodium erythorbate with a natural antioxidant (oregano extract) on physicochemical and sensory stability of lamb burgers, and determine the appropriate amount. Five treatments were prepared, including control (without antioxidant), sodium erythorbate, and three concentrations of oregano extract (13.32, 17.79 and 24.01 mL/kg), based on antioxidant capacity determined using the Folin-Ciocalteu, 2,2-diphenyl-1-picrylhydrazyl (DPPH ) and ferric reducing antioxidant power (FRAP) methods, respectively. Burgers containing oregano extract, at the concentration determined by FRAP method, had higher oxidative stability, evidenced by an 80% reduction ( P P P > 0.05) consumers’ sensory acceptance of the lamb burgers. Under the conditions tested, addition of 24 mL/kg of oregano extract could be recommended as a natural antioxidant in lamb burgers.
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