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Distribution and Molecular Characterization of Campylobacter Species at Different Processing Stages in Two Poultry Processing Plants. | LitMetric

AI Article Synopsis

  • The study investigated how and where Campylobacter contamination occurs during the processing of poultry in slaughterhouses by sampling at various stages.
  • Campylobacter was found in a higher percentage of samples after evisceration (20.5% in Plant A and 15.4% in Plant B), with overall contamination decreasing significantly after washing and chilling processes.
  • A genetic analysis showed that the Campylobacter strains had similar characteristics across different plants and conditions, indicating the need for a national monitoring program to enhance food safety in poultry processing.

Article Abstract

The present study analyzed the prevalence and molecular characterization of Campylobacter at different processing steps in poultry slaughterhouses to determine where contamination mainly occurs. A total of 1,040 samples were collected at four different stages (preprocessing cloacal swabs, postevisceration, postwashing, and postchilling) in two processing plants. Campylobacter was detected in 5.8% (15 of 260) of the cloacal swabs and in 13.3% (104 of 780) of the processing samples. In both plants, the sampling points with the greatest contamination rates were after evisceration (20.5% and 15.4% for plants A and B, respectively) and significantly decreased after chilling (p < 0.05, from 20.5% to 10.9%) in plant A and after washing (from 15.4% to 2.9%) in plants B. In the result, however, the reduction in Campylobacter contamination was achieved through the sequential processing procedures in both plants. Campylobacter loads (>10 colony-forming units [CFUs]/mL) also decreased from 41.7% at evisceration to 20.0% in final carcasses. The genetic relationships of isolates were analyzed by the automated repetitive sequence-based polymerase chain reaction (rep-PCR) system, and the rep-PCR banding pattern was found to be unrelated to the processing plants, species, sampling point, or sampling day. As the gap in the intervention efficacy remains between plant A and B despite several consistencies, a national program for monitoring critical processing stages in poultry processing plants is recommended for the successful exportation of Korean-processed white mini broiler meat.

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Source
http://dx.doi.org/10.1089/fpd.2016.2218DOI Listing

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