The Scientific World Journal (Jan 2014)

Effect of Ultimate pH on Postmortem Myofibrillar Protein Degradation and Meat Quality Characteristics of Chinese Yellow Crossbreed Cattle

  • Peng Li,
  • Tiantian Wang,
  • Yanwei Mao,
  • Yimin Zhang,
  • Lebao Niu,
  • Rongrong Liang,
  • Lixian Zhu,
  • Xin Luo

DOI
https://doi.org/10.1155/2014/174253
Journal volume & issue
Vol. 2014

Abstract

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This paper describes the complex effects of postmortem ultimate pH (pHu) on Chinese Yellow crossbreed cattle quality during postmortem ageing and provides an explanation of how pHu affects beef tenderness. High pHu beef had the highest initial tenderness (P2 days for intermediate pHu beef. Overall, Chinese Yellow crossbred cattle tenderness is related to pHu, which may be affected by proteolytic enzymatic activity. Therefore, pHu may be used to predict beef tenderness and other quality characteristics during postmortem ageing. To achieve consistent tenderness, different ageing times should be used, depending on pHu.