熱門(mén)關(guān)鍵詞： ELISA試劑盒 - 大鼠ELISA試劑盒- 小鼠ELISA試劑盒
全國(guó)統(tǒng)一客服熱線：
0755-28715175
熱門(mén)關(guān)鍵詞： ELISA試劑盒 - 大鼠ELISA試劑盒- 小鼠ELISA試劑盒
全國(guó)統(tǒng)一客服熱線：
0755-28715175
CM0949B Brilliance尿路感染顯色瓊脂
英文名稱：Tryptone Bile X-Glucuronide (TBX) Medium (Dehydrated)
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 166491, 2, 3 and ISO 11133:20144.
TBX Medium builds on the speed, reliability and recovery from frozen samples and detection of poor lactose fermenters offered by the original Tryptone Bile Agar4,5, with the addition of a chromogenic agent, X-glucuronide, which detects glucuronidase activity, an enzyme shown to be highly specific for Escherichia coli6.
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| CM0945B | - | 500g |
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Use TBX Medium for selective detection and enumeration of Escherichia coli in food and animal feed samples.
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 strains7.
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.
Not all products are available for sale in all territories. Please inquire.
Remel? and Oxoid? products are now part of the Thermo Scientific brand.
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