63016

M-17 Agar

suitable for microbiology, NutriSelect^® Basic

• UNSPSC Code: 41171605
• NACRES: NA.74

Propiedades

• sterility: non-sterile
• Quality Level: 100
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 12.75 g/L ; ascorbic acid, 0.5 g/L ; casein peptone (tryptic), 2.5 g/L ; disodium β-glycerophosphate pentahydrate, 19 g/L ; magnesium sulfate hydrate, 0.25 g/L ; meat extract, 5 g/L ; meat peptone (peptic), 2.5 g/L ; soyapeptone (papainic), 5 g/L ; yeast extract, 2.5 g/L
• manufacturer/tradename: NutriSelect^® Basic
• technique(s): microbiological culture: suitable
• final pH: 7.1±0.2 (25 °C)
• application(s): agriculture; environmental; food and beverages; microbiology
• suitability: nonselective for Lactococcus spp.; nonselective for Streptococcus spp.

Descripción

Application

M-17 Agar media is proposed for the cultivation, detection and enumeration of Iactic streptococci in milk and dairy products. The M-17 media are superior to other comparable culture media for the cultivation of the fastidious species Streptococcus cremoris, Streptococcus diacetilactis and Streptococcus Iactis. It is also suitable for cultivation and maintenance of starter cultures for cheese and yogurt manufacturing. This medium helps in detecting streptococcal mutants which are lactose non-fermenters. M-17 Agar media may also be used for the differentiation of bacteriophages infecting lactic streptococci.

Preparation Note

Dissolve 50 g in 950 ml distilled water and sterilize by autoclaving at 121°C for 15 minutes. After cooling add 50 ml aseptic 10% lactose solution.

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

Información de seguridad

• pictograms: GHS07
• signalword: Warning
• hcodes: H319
• pcodes: P264 - P280 - P305 + P351 + P338 - P337 + P313
• Hazard Classifications: Eye Irrit. 2
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)