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The microbiological quality of beef tripe using different processing techniques.

John C Bensink1, Boris Dobrenov, Mwate P Mulenga

  • 1School of Veterinary Science, University of Queensland, Brisbane, Queensland 4072, Australia.

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|November 9, 2011
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Summary

Microbiological quality of tripe and rumen pillars processed using dry dumping or after paunch bursting is comparable to routine methods. These findings suggest alternative processing methods do not compromise product safety or quality.

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Area of Science:

  • Food Microbiology
  • Meat Science
  • Food Safety

Background:

  • Tripe and rumen pillars are edible byproducts of ruminant meat processing.
  • Assessing the microbiological quality of these products is crucial for ensuring food safety.
  • Current processing methods may involve water usage or result in accidental paunch damage.

Purpose of the Study:

  • To compare the microbiological quality of tripe and rumen pillars processed via different methods.
  • To evaluate the impact of 'dry dumping' (emptying the rumen without water) on microbial counts.
  • To assess the safety of processing tripe and rumen pillars from deliberately burst paunches.

Main Methods:

  • Microbiological analysis including aerobic plate counts (APC) and total coliform counts (TCC).
  • Comparison of microbial loads from routinely processed, dry-dumped, and burst-paunch tripe and rumen pillars.
  • Testing for the prevalence of Salmonella and Campylobacter spp.

Main Results:

  • Mean log(10) APC and TCC for routinely processed tripe and rumen pillars were established.
  • Dry dumping resulted in comparable APC and TCC values to routine processing.
  • Processing tripe and rumen pillars from burst paunches also showed no significant compromise in microbiological quality.
  • Prevalence of Salmonella and Campylobacter spp. remained below 3% across all methods.

Conclusions:

  • Dry dumping is a viable processing method for tripe and rumen pillars without negatively impacting microbiological quality.
  • Accidental paunch bursting and subsequent contamination do not necessarily compromise the safety of the final product.
  • These findings support the potential adoption of alternative processing techniques in the meat industry.