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Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls
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P(y)-a parameter for meat quality.

U Pliquett1, M Altmann, F Pliquett

  • 1University of Bielefeld, Faculty of Chemistry, D-33615 Bielefeld, Germany.

Meat Science
|November 9, 2011
PubMed
Summary
This summary is machine-generated.

The P(y) parameter measures cell membrane integrity, offering a quick, non-damaging way to assess meat quality. It effectively distinguishes normal meat from PSE meat by correlating with drip loss and pH.

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Area of Science:

  • Food Science
  • Biophysics

Background:

  • Cell membrane integrity is crucial for meat quality.
  • Existing methods for assessing meat quality can be time-consuming or destructive.

Purpose of the Study:

  • To introduce and validate the P(y) parameter as a measure of cell membrane integrity.
  • To demonstrate the utility of P(y) in assessing meat quality and discriminating between normal and PSE (Pale, Soft, Exudative) meat.

Main Methods:

  • The P(y) parameter was measured, assessing the volume fraction of cells enclosed by insulating membranes.
  • Correlations between P(y) and established meat quality indicators (drip loss, pH) were analyzed.

Main Results:

  • P(y) directly indicates cell membrane integrity.
  • P(y) showed a strong correlation with meat quality parameters like drip loss and pH.
  • The P(y) measurement is instantaneous and nondestructive.
  • P(y) values varied with time post mortem, showing highest significance between 4 and 24 hours.

Conclusions:

  • P(y) is a valuable, rapid, and non-destructive tool for assessing meat quality.
  • P(y) effectively differentiates normal meat from PSE meat.
  • The P(y) parameter's dependence on time post mortem provides insights into meat aging processes.