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Thermo Scientific™ Tryptone Bile X-Glucuronide (TBX) Medium
Detect and enumerate Escherichia coli in food and animal feed samples with this selective, chromogenic, ready-to-use medium.
22.85€ - 39.45€
Specifications
| Format | 90mm Monoplate |
|---|---|
| Media Type | TBX Medium |
| Product Type | Agar |
| Packaging Type | Flow Wrapped - Single Layer |
| Quantity | 10/Pk. |
| Product Code | Brand | Quantity | Fill Weight | Media Type | Price | Quantity & Availability | |||
|---|---|---|---|---|---|---|---|---|---|
| Product Code | Brand | Quantity | Fill Weight | Media Type | Price | Quantity & Availability | |||
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11974162
|
Thermo Scientific™
PO5109A |
10/Pk. | 17g ± 5% | TBX Medium |
22.85€
Pack of 10 |
In Stock
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12972628
|
Thermo Scientific™
PO0727A |
10/Pk. | 19.5g ± 1.0.g | TBX Medium |
39.45€
Pack of 10 |
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Description
Detect and enumerate Escherichia coli in food samples with Thermo Scientific™ Typtone Bile X-Glucuronide (TBX) Medium. TBX Medium builds on the speed, reliability and recovery from frozen samples and detection of poor lactose fermenters offered by the original Tryptone Bile Agar1,2, with the addition of a chromogenic agent, X-glucuronide, which detects glucuronidase activity: an enzyme shown to be highly specific for Escherichia coli3. The released chromophore in TBX Medium is insoluble and accumulates within the cell, making colored target colonies easy to identify
Most Escherichia coli strains can be differentiated from other coliforms by the presence of the enzyme glucuronidase. However, approximately 3 to 4% of Escherichia coli are glucuronidase negative, notably Escherichia coli O157 strains4.
The chromogen in TBX Medium is 5-bromo-4-chloro-3-indolyl-beta-D-glucuronide (X-glucuronide) and is targeted by glucuronidase. Escherichia coli cells are able to absorb this complex intact and intracellular glucuronidase splits the bond between the chromophore and the glucuronide. The released chromophore is colored and builds up within the cells, causing Escherichia coli colonies to be colored blue/green.
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Specifications
| 90mm Monoplate | |
| Agar | |
| 10/Pk. |
| TBX Medium | |
| Flow Wrapped - Single Layer |
Safety and Handling
missing translation for 'shelfLife' : 12 Weeks
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Product Title
Thermo Scientific™ Tryptone Bile X-Glucuronide (TBX) Medium