Effect of sex and sub-zero storage temperature on the microbial and oxidative stability of beef packed in a high-oxygen atmosphere after different vacuum ageing times

Meat Sci. 2019 Feb:148:198-205. doi: 10.1016/j.meatsci.2018.09.005. Epub 2018 Oct 12.

Abstract

This study aimed to evaluate the effect of sex and sub-zero storage temperature on the microbial and oxidative stability of Belgian Blue beef packed in a high-oxygen atmosphere after different ageing times. Longissimus thoracis et lumborum from Belgian Blue young bulls and cull cows were aged at -1 or 4 °C for 80 days in vacuum. Every 20 days, samples were repackaged in a high-oxygen atmosphere (70/30% O2/CO2) and stored for 7 days (2 days at 4 °C + 5 days at 8 °C). Ageing at -1 °C had a protective effect against the growth of lactic acid bacteria and Enterobacteriaceae and myoglobin oxidation. Brochothrix thermosphacta was the limiting parameter for ageing longer than 20 days at -1 °C, permitting a subsequent 7-day shelf-life in a high-oxygen atmosphere. Meat from young bulls was more sensitive to oxidation than meat from cull cows. Extending Belgian Blue meat ageing for >20 days had a negative impact on retail shelf-life.

Keywords: Belgian Blue; Color; Lipid; Microbiological quality; Oxidation; Spoilage.

MeSH terms

  • Animals
  • Atmosphere
  • Bacteria / growth & development
  • Brochothrix / growth & development
  • Cattle
  • Cold Temperature
  • Female
  • Food Handling / methods*
  • Food Microbiology*
  • Food Packaging / methods
  • Food Preservation / methods
  • Male
  • Myoglobin / chemistry
  • Oxidation-Reduction
  • Oxygen / chemistry*
  • Red Meat / analysis*
  • Red Meat / microbiology
  • Vacuum

Substances

  • Myoglobin
  • Oxygen