Analysis Note

Appearance (clearness): clearAppearance (colour): yellowishpH-value (25 °C): 6.8 - 7.2Growth promotion test in accordance with the current version of DIN EN ISO 11133 and the harmonised method of EP, USP and JP.Inoculum on reference medium (Escherichia coli ATCC 25922 (WDCM 00013)): ≤ 100Inoculum on reference medium (Escherichia coli ATCC 8739 (WDCM 00012)): ≤ 100Inoculum on reference medium (Salmonella typhimurium ATCC 14028 (WDCM 00031)): ≤ 100Inoculum on reference medium (Salmonella enteritidis ATCC 13076 (WDCM 00030)): ≤ 100Inoculum on reference medium (Salmonella Abony NCTC 6017): ≤ 100Growth (Escherichia coli ATCC 25922 (WDCM 00013)): good to very goodGrowth (Escherichia coli ATCC 8739 (WDCM 00012)): good to very goodGrowth (Salmonella typhimurium ATCC 14028 (WDCM 00031)): good to very goodGrowth (Salmonella enteritidis ATCC 13076 (WDCM 00030)): good to very goodGrowth (Salmonella Abony NCTC 6017): good to very goodIncubation:18 ± 2 hours at 37 ± 1 °CS.abony 18 - 24 hours at 30 - 35 °C

Application

Buffered Peptone Water is used in the testing of food and water samples. This product is suitable for the preliminary non selective enrichment of bacteria, particularly pathogenic Enterobacteriaceae such as Salmonella and Cronobacter, from food, animal feed, water, and other materials. The product is also suitable as a diluent for general use.

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.

General description

Buffered Peptone Water is rich in nutrients and produces high resuscitation rates for sub lethally injured bacteria and intense growth. The phosphate buffer system prevents bacterial damage caused by changes in the pH of the medium. Peptone including enzymatic digest of casein acts as a source of carbon, nitrogen, vitamins and minerals whilst sodium chloride maintains the osmotic balance.GranuCult^® is our new brand name for our existing granulated dehydrated culture media which apply to new EN ISO 11133:2014 and various other ISO standards and FDA-BAM / USDA-FSIS methods for testing of food and water samples. All these media are currently being updated to be fully compliant to the latest version of these standards and regulations with respect to composition and quality control and will be available shortly.

Legal Information

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

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

Linkage

Replaces: 1072285007; 1.07228

Packaging

5 kg in Plastic drum

500 g in Plastic bottle