DETERMINATION OF PSE (PALE, SOFT AND EXUDATIVE) MEAT IN PORK CARCASSES
Keywords:PSE meat, pH values, quality, pork carcass.
AbstractThe PSE (pale, soft and exudative) meat condition alters the color, the texture and the flavor of pork,increasing its acidity and occasioning low water retention, low nutritional level and rejection by the consumer. To determine the presence of the PSE characteristic, the pork carcasses are evaluated by pH measurements at 45 minutes (pH45) and 24 hours (pH24 after the slaughter of the pigs. The mean pH45 values indicate that 33.65% of the carcasses present the PSE condition, 47.12% are Normal and 19.23 % can be described as DFD (dark, firm and dry). The pH24 values indicate an increase in the PSE carcasses up to 68% while the normal and DFD ones decrease to 31.23 % and 0.77%, respectively.
Comparing the change of the meat characteristics from 45 min to 24 hours, after the pig slaughter , it is observed that 62.44% of the normal meat and 87% of DFD one become PSE meat and 94.85% of the
initial PSE one does not suffer any transformation. The pork carcasses present high incidence of the
PSE characteristics at 45 minutes as well as 24 hours, indicating that there is problems before and after the slaughter of the pigs. High statistically significant difference (P ≤ 0.01) is found for the three meat conditions evaluated at pH45 and pH24.
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