Use of household steam cleaners to control microbial quality of animal carcasses in small and very small meat processing plants
Trivedi, Suvang Utpalkumar
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This study investigated the efficacy of three household steam cleaners, S1, S2 and S3, in reducing the populations of artificially-inoculated Escherichia coli O157:H7 or Listeria monocytogenes on surfaces of pork skin as well as naturally-occurring pathogenic and spoilage bacterial populations on freshly-slaughtered beef (n = 72) and hog (n = 72) carcasses in four small or very small meat-processing plants in Georgia. The application of steam generated by S1, S2 or S3 for 180 s significantly reduced the population of L. monocytogenes, E. coli O157:H7, total aerobes and thermoduric bacteria on the surface of pork skin (P ” 0.05). The treatment for 60 s with S1 significantly reduced the microflora at rump, midline, and neck regions of beef carcasses as well as ham, belly, and jowl regions of hog carcasses (P ” 0.05). Results suggest that household steam cleaners could be used as a critical control measure in small or very small meat-processing plants.