Samples · Transport
Cary-Blair Transport Medium – transport of enteric samples
Cary-Blair Transport Medium is a semi-solid medium for the collection, transport and preservation of faecal and other samples for the isolation of enteric pathogens such as Salmonella, Shigella, Vibrio and Campylobacter.
- Semi-solid transport medium
- Low nutrient content
- High pH for enteric pathogens
How Cary-Blair Transport Medium works
The medium contains almost no nutrients, so organisms survive without multiplying. Thioglycollate keeps a low redox potential, and the buffered, slightly alkaline pH protects enteric pathogens during transport.
Technical data
| Preparation | 12.7 g/L; heat with stirring to boiling until dissolved, dispense; do not autoclave |
| Final pH | 8.4 ± 0.2 |
| Storage | Cool, dry place away from bright light; keep the container tightly closed |
| Shelf life | 3 years |
Applications and practical notes
General-purpose media and diluents are used in every microbiology laboratory, from sample preparation to transport and environmental monitoring. Typical applications include:
- Sample preparation and dilution
- Environmental and surface monitoring
- Transport of clinical and food samples
- General laboratory work
Working with Cary-Blair Transport Medium: Dissolve the powder by boiling, dispense it into tubes without autoclaving and keep the tubes tightly closed until use.
Good practice with dehydrated media: keep the bottle tightly closed in a cool, dry place, weigh the powder quickly to avoid moisture uptake, and use fresh distilled or deionised water. Check the pH of each new batch after preparation and before use, and label prepared media with the date. Performance of each lot can be verified with reference strains according to ISO 11133, the standard for the preparation, production, storage and performance testing of culture media.
About general-purpose media: general-purpose media are not tied to one reference method. They are used in every laboratory for cultivation, revival of reference strains, purity checks and as bases for enriched and test media. Their performance is verified with reference strains according to ISO 11133, and media for susceptibility testing follow the requirements of EUCAST and CLSI. COLO.Science offers general media, enriched bases, supplements and QC strains from one source.
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.
Cary-Blair Transport Medium is supplied by COLO.Science in the pack sizes listed under Ordering information. For larger quantities, regular deliveries or method-specific sets that include Cary-Blair Transport Medium, please send us a request. With every delivery of Cary-Blair Transport Medium you receive the lot number and expiry date, and on request we send the available documentation for Cary-Blair Transport Medium.
Where Cary-Blair Transport Medium fits in general microbiology
- Sample preparation – Peptone Water, Phosphate Buffer and other diluents
- Cultivation and revival – Nutrient, BHI and Columbia media
- Fastidious organisms – blood, chocolate and GC media with supplements
- Testing and identification – Mueller Hinton for susceptibility, CLED and chromogenic agar for urine, biochemical tests
See all general-purpose media in the Microbiology Catalogue →
Ordering information
| Product | COLO code | Pack |
|---|---|---|
| Cary-Blair Transport Medium | PRO8187 | 500 g |
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.
COLO.SCIENCE | MICROBIOLOGY SUPPORT
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.




