Journal
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
Volume 47, Issue 1, Pages 57-62Publisher
INST TECNOLOGIA PARANA
DOI: 10.1590/S1516-89132004000100008
Keywords
warmed over flavour; vitamin E; phytic acid; lipid oxidation inhibition; response surface methodology; breast poultry meat
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The effect of alpha-tocopheryl acetate (AT) supplementation and exogenous application of this vitamin E associated with phytic acid (PA) on chicken breast meat WOF development was assessed. Control group was fed with 7.7IU of AT/kg of ration and supplemented group was fed with 200.0IU of AT/kg of ration. Dietary vitamin E as measured by TBARS inhibited WOF development by 78.9; 69.0; 60.7 and 46.5% (p < 0.05) during storage at 6 degreesC for 0, 1, 3 and 5 days, respectively. This inhibition was significantly increased (p < 0.05) by 86.1; 91.6; 92.9 and 95.3% during storage at 6 degreesC for 0, 1, 3 and 5 days, respectively, when 2mM PA was added in supplemented breast meat. In the exogenous experiment, through Response Surface Methodology design it was found out AT did not have a significant role towards oxidation inhibition whereas PA inhibited partially in samples stored for 48h at 6 degreesC. The results showed that dietary AT inhibited at initial stage, subsequently PA would act at propagation phase occurring synergetic reaction between both antioxidants.
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