Pre-rigor temperature control of Chinese yellow cattle carcasses to 12-18 °C during chilling improves beef tenderness

Meat Sci. 2015 Feb:100:139-44. doi: 10.1016/j.meatsci.2014.09.006.

Abstract

This study evaluates the effects of pre-rigor temperature control on quality traits of Chinese yellow cattle M. longissimus lumborum (LL). One stepwise chilling (SC) treatment was used on one half-carcass, involved a fast chilling (-11 ± 1 °C;0.5 m/s) for 2h, then the refrigeration was stopped to hold a core temperature of 12-18 °C until 10h postmortem, followed by a 1 ± 1 °C chilling (0.5 m/s) to 48h postmortem. The other half-carcass was conventional chilled at 1 ± 1 °C (0.5 m/s) until 48h as control chilling (CC). Quality attributes were evaluated at 1, 7 and 14 days. The SC treatment resulted in decreased WBSF and increased myofibril fragmentation index compared with control. SC-treated LL at 7d postmortem had a lower WBSF than those of CC-treated at 14d. This pre-rigor temperature controlled chilling is a realistic alternative for the beef industry in China to ensure adequate tenderness and shorten aging time.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cattle
  • China
  • Cold Temperature*
  • Food Handling / methods*
  • Humans
  • Hydrogen-Ion Concentration
  • Meat / analysis*
  • Muscle, Skeletal
  • Myofibrils*
  • Postmortem Changes*
  • Refrigeration / methods*
  • Rigor Mortis
  • Stress, Mechanical*