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Lauryl Sulfate Broth (LS)


Lauryl tryptose broth (LSB) is a selective growth medium (broth) for coliforms. Lauryl tryptose broth is used for the most probable number test of coliforms in waters, effluent or sewage. It tests for lactose fermentation with gas production. Sodium lauryl sulfate inhibits organisms other than coliforms.

Enzymatic Digest of Casein 20g

Lactose 5g

Sodium Chlorise 5g

Monopotassium Phosphate 2.75g

Disodium Phosphate 2.75g

Sodium Lauryl Sulfate 0.1

Final pH: 6.8 ± 0.2 at 25°C

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