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A new simple method for microbiological sampling of meat surfaces.

J Goulet, G Lévesque, J R Moreau

    Canadian Journal of Microbiology
    |June 1, 1983
    PubMed
    Summary

    A novel abrasive disc method for meat surface sampling shows increased bacterial recovery over time compared to the spray gun technique. This new approach offers superior efficiency for detecting microbial contamination in meat products after extended storage.

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    Area of Science:

    • Food Microbiology
    • Food Safety
    • Microbial Sampling Techniques

    Background:

    • Accurate microbial sampling of meat surfaces is crucial for food safety and quality control.
    • Existing methods, such as the spray gun technique, have limitations in bacterial recovery efficiency over time.
    • Development of improved sampling methods is needed to enhance the detection of microbial contamination in meat products.

    Purpose of the Study:

    • To evaluate a new abrasive disc method for sampling meat surfaces.
    • To compare the bacterial recovery efficiency of the abrasive disc method against the established spray gun technique.
    • To assess the performance of both methods at different incubation times and temperatures.

    Main Methods:

    • Inoculation of beef and pork slices with bacteria.

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  • Sampling using both the novel abrasive disc method and the spray gun technique.
  • Incubation of samples at 4 degrees C for varying durations (1, 48, 120 h for beef; 1, 48, 72 h for pork).

    • Main Results:

    • The abrasive disc method demonstrated slightly lower initial bacterial recovery compared to the spray gun technique.
    • After 72 and 120 h of incubation, the abrasive disc method showed a significant increase in efficiency, being approximately 600% more effective.
    • This indicates a superior ability of the abrasive disc method to recover bacteria from meat surfaces after prolonged storage periods.

    Conclusions:

    • The abrasive disc method is a promising alternative for meat surface sampling, particularly for detecting bacteria after extended cold storage.
    • This method offers enhanced sensitivity for microbial contamination assessment in meat products over time.
    • Further research may validate its application in routine food safety monitoring.