09136

Tryptophan Broth

suitable for microbiology, NutriSelect^® Plus

• Synonyme(s) : Tryptone/Tryptophan Medium
• Code UNSPSC : 41171607
• Nomenclature NACRES : NA.85

Propriétés

• Agence: according to ISO 10273:2017; according to ISO 16654:2001; according to ISO 6579-1:2017
• Niveau de qualité: 200
• Stérilité: non-sterile
• Forme: powder
• Durée de conservation: limited shelf life, expiry date on the label
• Composition: casein enzymic hydrolysate, 10.0 g/L ; sodium chloride, 5.0 g/L ; DL-tryptophan, 1.0 g/L
• Fabricant/nom de marque: NutriSelect^® Plus
• pH final: 7.5±0.2 (25 °C)
• Application(s): environmental; food and beverages; water monitoring; microbiology
• Adéquation: Escherichia coli; coliforms

Description

Application

Medium to perform the indole test to confirm E. coli in water acc. EN IS0 9308-1:2000.

Notes préparatoires

Dissolve 16g Tryptophan Broth in one liter water by heating. Dispense 3 ml per test tube. Close the tubes with cotton plugs, plastic or metal caps. Autoclave for 15 min at 121 ± 3°C.

Note de bas de page

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.

Informations légales

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

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 1