07348

m-Lauryl sulfate broth

suitable for microbiology, NutriSelect^® Plus

• Synonym(s): Membrane lauryl sulfate broth
• UNSPSC Code: 41171607
• NACRES: NA.85

Properties

• sterility: non-sterile
• Quality Level: 200
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: lactose, 30 g/L ; peptic digest of animal tissue, 39 g/L ; phenol red, 0.2 g/L ; sodium lauryl sulfate, 1 g/L ; yeast extract, 6 g/L
• manufacturer/tradename: NutriSelect^® Plus
• final pH: 7.4±0.2 (25 °C)
• application(s): environmental; food and beverages; water monitoring; microbiology
• suitability: selective and differential for Enterobacter spp.; selective and differential for Escherichia coli; selective and differential for Salmonella spp.; selective and differential for coliforms

Description

Application

M-Lauryl sulfate broth is used for enumeration of Escherichia coli and coliforms in water, using membrane filter technique, replacing membrane enriched teepol broth. It is recommended by ISO Committee under the specification ISO 9308-1: 1990

Preparation Note

Suspend 76.2 g 1000 ml distilled water. Boil to dissolve the medium completely. Dispense as desired and sterilise by steaming for 30 min. on three consecutive days or by autoclaving at 121°C for 15 min.

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 Code: 11 - Combustible Solids
• WGK: WGK 2
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves