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Bacterial counts associated with poultry processing at different sampling times.

I Geornaras1, A von Holy

  • 1Department of Molecular and Cell Biology, University of the Witwatersrand, Private Bag 3, Wits 2050, South Africa. gina@gecko.biol.wits.ac.za

Journal of Basic Microbiology
|February 24, 2001
PubMed
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Microbial counts on poultry neck skins did not significantly differ across processing times. Spray washing reduced contamination, but packaging led to re-contamination, altering bacterial levels.

Area of Science:

  • Food Microbiology
  • Poultry Processing Hygiene
  • Microbial Contamination Control

Background:

  • Microbial contamination of poultry products is a significant food safety concern.
  • Understanding microbial dynamics throughout poultry processing is crucial for effective control strategies.
  • Previous studies highlight the importance of specific processing steps in influencing microbial load.

Purpose of the Study:

  • To assess the impact of processing times on microbial counts (aerobic plate, Enterobacteriaceae, Pseudomonas) on poultry neck skins.
  • To evaluate the effectiveness of different processing steps, including washing and packaging, in controlling microbial contamination.
  • To determine if sampling time within a processing shift affects bacterial load on neck skins.

Main Methods:

Related Experiment Videos

  • Neck skin samples were collected from six processing steps at three different times during a poultry processing shift.
  • Aerobic plate counts, Enterobacteriaceae counts, and Pseudomonas counts were determined for each sample.
  • Statistical analysis (P > 0.05) was used to compare microbial numbers across sampling times and sites.

    • Main Results:

    • No significant differences in microbial counts were found between the three sampling times.
    • Spray washing significantly reduced aerobic plate counts, indicating its efficacy in initial decontamination.
    • Packaging resulted in the highest microbial counts, suggesting re-contamination occurred post-washing, with Pseudomonas counts exceeding Enterobacteriaceae counts.

    Conclusions:

    • Sampling time within a processing shift does not significantly impact microbial counts on poultry neck skins.
    • While spray washing is effective, subsequent packaging steps pose a risk for re-contamination.
    • Interventions targeting the packaging process are necessary to further reduce microbial load on final poultry products.