Beta-D-galactosidase activity
beta-Galactosidase activity is one of the most important markers in diagnostic microbiology. The detection of beta-galactosidase activity is used to detect the presence of coliforms, faecal coliforms and E.coli in water testing. E. coli, strain 0157 : H7 is β-galactosidase positive, unlike other strains of E.coli which are β-glucuronidase positive. The most common beta-galactosidase substrates; ONPG (product code 24045) used in liquid media for the detection of coliforms. 5-bromo-4-chloro-3-indolyl beta-D-galactopyranoside (X-gal) (Product code 70045) is used for the same application but in solid media.
- CAS: 288262-81-7
- Product Code: 89045
- Chemical Formula: C20H18O9
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- Product Code: 51045
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- Product Code: 70045
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- Product Code: 31045
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- Product Code: 01045
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- Product Code: 60045
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- Product Code: 87045
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- CAS: 1771697-31-4
- Product Code: 80045
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- Product Code: 56045
- Chemical Formula: C16H16Br2O7
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- Product Code: 86045
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- CAS: 94452-17-2
- Product Code: 62045
- Chemical Formula: C32H49NO9
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- CAS: 367-93-1
- Product Code: 72045
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- CAS: 6160-78-7
- Product Code: 44045
- Chemical Formula: C16H18O8
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- CAS: 51349-63-4
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- Product Code: 18045
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- CAS: 3150-24-1
- Product Code: 38045
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- CAS: 2818-58-8
- Product Code: 25045
- Chemical Formula: C12H16O6
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