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  • Petrifilm® Staph Express Disks

Products

  • Neogen® Petrifilm® Bacillus cereus Count Plates
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  • HI981036 For Meat
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  • LogTag® EnviroLog (single-use temperature recorder)
  • Petrifilm® Salmonella Express Confirmation Disks
  • Petrifilm® Coliform Count Plates
  • Petrifilm® Environmental Listeria Plates &
  • GM-100 General Purpose Work Gloves
  • Petrifilm® Staph Express Disks
  • Petrifilm® Staph Express Count Plates
  • Petrifilm® Rapid Aerobic Count Plates
  • Neogen® Petrifilm® Aerobic Count Plates (6406)
  • Neogen® Petrifilm® Enterobacteriaceae Count Plates
  • Petrifilm® E. coli/Coliform Count Plates
  • Petrifilm® Rapid E. coli/Coliform Count Plates
  • Petrifilm® Salmonella Express Plates
  • Petrifilm® Rapid Yeast and Mold Count Plates
  • Petrifilm® Yeast and Mold Count Plates
  • Petrifilm® Aqua Heterotrophic Count Plates
  • tempmate
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  • Logtag UTRID-16 Temperature Data Logger
  • MULTI-USE TEMPERATURE LOGGER TRIX-8
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  • Neogen® Molecular Detection Instrument
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  • Neogen® Molecular Detection Assay 2, Cronobacter
  • Neogen® Molecular Detection Assay 2, Listeria
  • Neogen® Molecular Detection Assay 2, Salmonella
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  • Neogen® Molecular Detection Assay 2, Campylobacter
  • Neogen® Molecular Detection Assay 2, E. coli O157 (including H7)
  • Electronic Balance
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  • Neogen® Rappaport-Vassiliadis R10 Broth
  • Neogen® Swab-Sampler with Buffered Peptone Water
  • Clean-Trace® Surface Protein Plus Test Swab
  • Clean-Trace® Water Plus - Total ATP
  • NCM0081 Dichloran Glycerol (DG-18)Agar Base
  • NCM0077 Perfringens Agar Base (TSC)
  • NCM0068 Sabouraud Dextrose Agar with Chloramphenicol
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  • NCM0001 Half Fraser (Demi-Fraser) Broth (ISO)
    • Petrifilm® Staph Express Disks

    Petrifilm® Staph Express Disks

    Neogen® Petrifilm® Staph Express Disks provide rapid biochemical confirmation of Staphylococcus aureus on Staph Express Count Plates.
    A rose-colored zone appears around typical colonies after incubation.
    Suitable for food and environmental testing laboratories.
    Model : 6493
    • 6492-sds_tw.pdf

    • Description
    • Specifications
    • Features
    • Applications

    Neogen® Petrifilm® Staph Express Disks are the confirmation step of the Staph Express System, designed to biochemically verify the presence of Staphylococcus aureus.
    When placed on typical colonies on STX Plates, a rose-colored zone develops after short incubation, indicating a positive S. aureus reaction.

    This confirmation step is simple, rapid and essential for distinguishing S. aureus from other staphylococci.
    Ideal for routine testing in food, dairy, meat and hygiene monitoring programs.

    BrandPetrifilm®
    Product Name Neogen® Petrifilm® Staph Express Disks
    Purpose Biochemical confirmation of Staphylococcus aureus on Staph Express Count Plates
    Reaction Principle Typical colonies produce a rose-colored zone after disk incubation
    Usage Place disk over typical colonies and incubate for 1–3 hours
    Sample Types Food, dairy, meat, prepared foods, food-contact surfaces
    Reaction Time 1–3 hours
    Catalog Number 6499D (varies by region)
    Storage Conditions 2–8°C refrigerated storage
    Use After Opening Use as soon as possible after opening to ensure performance stability
    Brand Neogen® Petrifilm®
    Validation Method AOAC International (paired with STX plates)

Advantages

  • Provides rapid confirmation of Staphylococcus aureus.
  • Rose-colored zone is visually distinct and easy to interpret.
  • Simple procedure requiring no additional complex reagents.
  • Ideal for routine QC testing in food production and laboratories.
  • Completes the Staph Express System when used with STX Plates.

Limitations

  • Must be used with Petrifilm Staph Express Count Plates.
  • Weakly reacting strains may require extended incubation.
  • Incorrect placement of the disk may affect results.

Operating Notes

  • Ensure the disk fully covers the suspected colony.
  • Do not disturb plates during the short reaction period.
  • Rose-colored zone indicates confirmed S. aureus.

Technical Details

  • Biochemical substrate reacts specifically with S. aureus enzymes.
  • Effectively differentiates target bacteria from CoNS.
  • Aligned with AOAC confirmation procedures.
  • Rapid confirmation of Staphylococcus aureus in food testing.
  • Microbiological monitoring in dairy, meat and processed foods.
  • Hygiene monitoring of food-contact surfaces.
  • Use in third-party laboratories and training programs.

Related Products

NCM0077 Perfringens Agar Base (TSC)

NCM0077 Perfringens Agar Base (TSC)

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

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

Clean-Trace® Water Plus - Total ATP

Clean-Trace® Water Plus - Total ATP

Petrifilm® Yeast and Mold Count Plates

Petrifilm® Yeast and Mold Count Plates

Neogen® Molecular Detection Assay 2, Campylobacter

Neogen® Molecular Detection Assay 2, Campylobacter

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