74173

Preston Broth Base

suitable for microbiology, NutriSelect^® Prime

• UNSPSC Code: 41171607
• NACRES: NA.74

Properties

• agency: according to ISO 10272-1:2017
• Quality Level: 200
• sterility: non-sterile
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 1.0 g/L ; peptone, 10.0 g/L ; peptose*, 10.0 g/L (*equivalent to enzymatic digest of animal tissues); sodium chloride, 5.0 g/L
• manufacturer/tradename: NutriSelect^® Prime
• final pH: 7.4±0.2 (25 °C)
• application(s): food and beverages; microbiology
• suitability: Campylobacter spp.

Description

Application

For selective enrichment and cultivation of Campylobacter species . The composition and performance criteria of this medium are as per the specifications laid down in ISO 10272-1:2017.

Preparation Note

Suspend 25 grams in 945 ml of purified/distilled water. Heat to boiling to dissolve the medium completely. Sterilize by autoclaving at 15lbs pressure (121°C) for 15 minutes. Cool to 45-50°C and aseptically add 50 ml of sterile lysed horse blood and reconstituted contents of 2 vials of Preston Selective Supplement (Cat. No. 38390). Mix well and dispense into sterile tubes or flasks as desired.

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 3