Cronobacter · Ready-to-use plate
Cronobacter Detection Plate – ready-to-use chromogenic plate
The Cronobacter Detection Plate is a ready-to-use film plate with a dried chromogenic medium for Cronobacter. It is inoculated with the enriched sample, and Cronobacter forms blue-green colonies after incubation.
- No media preparation
- Blue-green Cronobacter colonies
- Qualitative and MPN use
How Cronobacter Detection Plate works
The sample is pipetted onto the plate and spread by the cover film. The dried medium contains selective agents and a chromogenic substrate, so Cronobacter colonies turn blue-green while other bacteria remain grey-red or colourless.
Typical results
| Result | Appearance |
| Cronobacter | Blue-green colonies |
| Other bacteria | Grey-red or colourless colonies |
Technical data
| Preparation | Ready to use; inoculate after pre-enrichment in Buffered Peptone Water |
| Incubation | Qualitative 41.5 ± 1 °C, 18–24 h; quantitative (MPN) 44 ± 1 °C, 18–24 h |
| Storage | 2–8 °C, sealed; opened packs resealed and used within 4 weeks |
| Shelf life | 18 months |
Applications and practical notes
Rapid tests shorten the time to result for Cronobacter after enrichment, while positive results are confirmed by the culture method of ISO 22964. Typical applications include:
- Screening of infant formula batches before release
- Environmental monitoring in powder plants
- Laboratories that need results within a working day
- Confirmation of suspect colonies
Working with Cronobacter Detection Plate: Keep opened packs resealed at 2–8 °C and use the plates within four weeks.
Good practice with rapid tests: store the kit as stated on the label, let the components reach room temperature before use and use each item only once. Record the lot number and the result, and confirm positive results according to the reference method when this is required.
About the Cronobacter method: ISO 22964 is the horizontal method for Cronobacter spp. in infant formula, infant cereals, milk powders and production environments. It combines pre-enrichment in Buffered Peptone Water, selective enrichment at 41.5 °C, plating on a chromogenic agar and biochemical confirmation; the FDA BAM Chapter 29 uses a similar culture and PCR approach. COLO.Science offers media, supplements, rapid tests and identification kits for every step.
Complete sets from one supplier: COLO.Science supplies culture media, supplements, rapid tests, identification kits and QC strains as complete sets for the method you follow. Send us your sample types and standards, and we will prepare an offer with the matching products and documentation.
Cronobacter Detection Plate is supplied by COLO.Science in the pack sizes listed under Ordering information. For larger quantities, regular deliveries or method-specific sets that include Cronobacter Detection Plate, please send us a request. With every delivery of Cronobacter Detection Plate you receive the lot number and expiry date, and on request we send the available documentation for Cronobacter Detection Plate.
Where Cronobacter Detection Plate fits in Cronobacter testing
- Pre-enrichment – Buffered Peptone Water, 34–38 °C
- Selective enrichment – Cronobacter enrichment broth with vancomycin-type supplement at 41.5 °C
- Isolation – Chromogenic Cronobacter Agar: blue-green colonies
- Confirmation – biochemical identification; rapid screening by qPCR, LAMP or detection plate
See all Cronobacter products in the Microbiology Catalogue →
Ordering information
| Product | COLO code | Pack |
|---|---|---|
| Cronobacter Detection Plate | PRO7371 | 20 plates |
Product notice: preparation, storage conditions and shelf life are given on the label. Technical data on this page are for orientation; the label and the lot documentation apply. B2B prices are quoted net, excluding VAT.
Sales and technical support
COLO LabExperts
Polje ob Sotli 4, SI-3255, Slovenia
Quotations and technical support for culture media and microbiology products across our international sales territory. B2B prices are net, excluding VAT.
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Need the complete set for your method?
Send the sample type, target organism and the standard you follow. COLO.Science will put together the media, supplements, QC strains and confirmation tests for the whole procedure.
