Product Code | Description | Product Size | Quantity |
CM0945B | TBX Medium 500g | – | 500g |
TBX Medium 500g
Brand:
Thermo ScientificTM OxoidTM
Detect and enumerate Escherichia coli in food and animal feed samples with Thermo Scientific™ Oxoid™ Typtone Bile X-Glucuronide (TBX) Medium (Dehydrated). The medium meets the formulation and performance criterion laid down in ISO 16649 and ISO 11133:2014.
TBX Medium builds on the speed, reliability and recovery from frozen samples and detection of poor lactose fermenters offered by the original Tryptone Bile Agar, with the addition of a chromogenic agent, X-glucuronide, which detects glucuronidase activity, an enzyme shown to be highly specific for Escherichia coli.
Typtone Bile X-Glucuronide (TBX) Medium (Dehydrated), Oxoid Composition
Typical Formula* | gm/litre |
Tryptone | 20.0 |
Bile Salts No. 3 | 1.5 |
Agar | 15.0 |
X-glucuronide | 0.075 |
pH 7.2 ± 0.2 @ 25°C |
Typtone Bile X-Glucuronide (TBX) Medium (Dehydrated), Oxoid Preparation:
Suspend 36.6g of TBX Medium in 1 litre of distilled water. Sterilise by autoclaving at 121°C for 15 minutes. Cool to 50°C and pour the medium into sterile Petri dishes.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared plates of medium at 2-8°C.
Dimensions | 10 cm |
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Brand | Oxoid |
Estimated Delivery Time | 1-2 weeks |