16377

MacConkey Broth Purple

NutriSelect^® Plus, suitable for microbiology

• Synonym(s): MacConkey Bromocresol purple Broth, MacConkey G Broth
• UNSPSC Code: 41171606
• NACRES: NA.85

Properties

• sterility: non-sterile
• Quality Level: 200
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: bile salts, 5.0 g/L ; bromoresol purple, 0.01 g/L ; lactose, 10.0 g/L ; peptone, 20.0 g/L ; sodium chloride, 5.0 g/L
• manufacturer/tradename: NutriSelect^® Plus
• final pH: 7.4±0.2 (25 °C)
• application(s): agriculture; bioburden testing; environmental; food and beverages; water monitoring; microbiology
• suitability: selective and differential for Citrobacter spp.; selective and differential for Enterobacter spp.; selective and differential for Escherichia coli; selective and differential for Klebsiella spp.; selective and differential for Proteus spp.; selective and differential for Salmonella spp.; selective and differential for Serratia spp.; selective and differential for Shigella spp.; selective and differential for coliforms; selective and differential for enterobacteriaceae

Description

Application

MacConkey Broth Purple is a differential medium used for the detection of coliforms in water samples and milk examination by MPN technique. It is a modification of the classic medium, where neutral red is replaced by a less aggressive indicator, according European Pharmacopoeia. It is also recommended by ISO Committee under the specification ISO 9308-2:1990.

Preparation Note

Suspend 40 g in 1000 ml distilled water. Dispense in test tubes with inverted Durham tubes. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

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 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves