Assessment of Microbial Populations in the Manufacture of Vacuum-Packaged Ready-to-Eat Roast Beef and in a Related Production Plant

The use of the Seward Stomacher in preparing samples for the assessment of microbial populations in the manufacture of vacuum-packaged ready-to-eat roast beef and in a related production plant.

Abstract

Some microbiological criteria were monitored for 6 months in vacuum-packaged roast beef (15 production batches), raw beef (10 batches), and other meat products (12 batches) produced Continue reading

Comparison of homogenization by blending or Stomaching on the recovery of Listeria monocytogenes from beef tissue

A Stomacher® 400 was used to blend beef tissue as part of the comparison in Listeria monocytogenes recovery.

The study shows that there was no difference between blending and stomaching on the recovery of Listeria monocytogenes in beef tissue.

food microbiology red meat listeria monocytogenes stomacher 400

Influence of variations in methodology on populations of Listeria monocytogenes recovered from lettuce treated with sanitizers

Stomaching, homogenizing, or stomaching followed by homogenizing lettuce treated with sanitizers resulted in recovery of similar numbers of L. monocytogenes, indicating that stomaching and homogenizing are equivalent in extracting cells.

food microbiology sanitizer evaluation lettuce listeria monocytogenes stomacher 400