17349

Lauryl sulfate Broth

suitable for microbiology, NutriSelect^® Plus

• Synonym(s): Lauryl Tryptose Broth
• UNSPSC Code: 41171607
• NACRES: NA.74

Properties

• agency: according to ISO 4831:2006; according to ISO 7251:2005
• Quality Level: 200
• sterility: non-sterile
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: dipotassium hydrogen phosphate, 2.75 g/L ; lactose, 5 g/L ; potassium dihydrogen phosphate, 2.75 g/L ; sodium chloride, 5 g/L ; sodium lauryl sulfate, 0.1 g/L ; tryptose, 20 g/L
• manufacturer/tradename: NutriSelect^® Plus
• technique(s): microbiological culture: suitable
• final pH: 6.8±0.2 (25 °C)
• application(s): agriculture; bioburden testing; environmental; food and beverages; water monitoring; microbiology
• suitability: selective for Enterobacter spp.; selective for Escherichia coli; selective for Salmonella spp.; selective for coliforms

Description

Application

Selective medium acc. to Mallmann and Darby (1941) for the presumptive testing for coliform and their selective enrichment in the examination of water, dairy products and food.
The difference to Cat. No. 61749 is that Tryptose is used instead of Casein peptone.

Preparation Note

Dissolve 35.6 g in 1 litre water. Sterilize by autoclaving at 121°C for 15 minutes.

Footnote

We offer two media types: the superior granulated GranuCult^® and the cost-efficient powdered NutriSelect^® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

Legal Information

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)