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You are here:Home » Culture Media » Media-Microbiological » Lauryl Sulfate Broth (Powder)

Lauryl Sulfate Broth (Powder)


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Standard methods medium for growth of coliform bacteria in water and food.
Catalog #L1400
Lauryl Sulfate Broth was formulated by Malimann and Darby (1) for detection of coliform bacteria in water. This is a selective medium because it contains sodium lauryl sulfate which inhibits Gram positive microorganisms. Lactose is added to detect rapid lactose fermentation by coliforms.
Quality Control SummaryExpected cultural response after 18-24 hours at 35.0°C..
Organism Result
Enterobacter aerogenes ATCC 1304 Growth, Gas +
8 Escherichia coli ATCC 25922 Growth, Gas +
Proteus mirabilis ATCC 12453 Growth, Gas -
Salmonella typhimurium ATCC 14028 Growth, Gas -
Staphylococcus aureus ATCC 25923 No Growth
AppearanceWhite to off-white crystalline powder
SolubilityClear, light amber and complete
pH6.8± 0.2

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