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  • Petrifilm® Rapid Aerobic Count Plates

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    • Petrifilm® Rapid Aerobic Count Plates

    Petrifilm® Rapid Aerobic Count Plates

    Neogen® Petrifilm® Rapid Aerobic Count Plates provide a fast and standardized method for determining total aerobic bacteria, with results available in about 24 hours.
    The plates eliminate agar preparation and are ideal for food, dairy, meat and environmental hygiene monitoring.
    Model : 6478

    • Description
    • Specifications
    • Features
    • Applications

    Neogen® Petrifilm® Rapid Aerobic Count Plates (RAC) are designed to provide fast total aerobic bacteria results, typically in about 24 hours.
    To use, inoculate 1 mL of diluted sample onto the plate and spread evenly with the Petrifilm spreader.

    The RAC plates contain an enzyme-based indicator system that produces distinct blue to blue-green colonies on a transparent background.
    Compared with standard AC Plates, RAC significantly accelerates time-to-result, improving laboratory throughput.

    These plates are suitable for food, dairy, meat, processed foods, beverages and food-contact surfaces, particularly in rapid-release testing environments.

    BrandPetrifilm®
    Product Name Neogen® Petrifilm® Rapid Aerobic Count Plates (RAC)
    Target Organism Total aerobic bacteria
    Sample Types Food, dairy, beverages, meat, processed foods, environmental surfaces
    Incubation Conditions 24 ± 2 hours at 30–37°C
    Reading Typical colonies appear blue to blue-green; transparent background with printed grid
    Recommended Count Range < 300 CFU/plate
    Catalog Numbers 6478: 100 plates/box
    6479: 1000 plates/case
    Storage Conditions 2–8°C refrigerated
    Brand Neogen® Petrifilm®
    Method Validation AOAC International (varies by food category)

Advantages

  • Results in ~24 hours, significantly faster than standard AC Plates.
  • Ready-to-use format reduces preparation time and operator variability.
  • Distinct blue colonies provide clear, easy interpretation.
  • Thin-film design saves incubator space and increases throughput.
  • Ideal for rapid-release programs and high-frequency QC testing.

Limitations

  • Not for clinical or diagnostic applications.
  • Acidic or antimicrobial samples require suitability verification.
  • High microbial loads may require additional dilution.
  • Atypical colonies may require secondary confirmation.

Operating Notes

  • Hold pipette vertically when inoculating to avoid bubble formation.
  • Incubate clear side up; do not exceed recommended stack height.
  • Confirm typical blue/blue-green colony morphology before counting.

Technical Details

  • Rapid-reaction formula shortens incubation time to 24 hours.
  • Growth area ~20 cm² with printed grid for consistent enumeration.
  • Uses similar principles as AC Plates but with faster enzymatic response.
  • Aligned with AOAC validated principles for total aerobic count.
  • Rapid total aerobic count testing for food, dairy and beverages.
  • Routine microbiological monitoring for meat and processed foods.
  • Hygiene monitoring of equipment and food-contact surfaces.
  • Rapid-release testing in manufacturing environments.
  • Training and routine testing in third-party laboratories.

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Petrifilm® Environmental Listeria Plates<table border="1" cellpadding="6" cellspacing="0" style="border-collapse:collapse;"> <tr><td>Brand</td><td>Petrifilm®</td></tr> &

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