1.10987

Phenol-red broth (base)

suitable for microbiology

• UNSPSC Code: 41106213
• NACRES: NA.74

Properties

• form: medium granules (dehydrated (DCM))
• Quality Level: 200
• manufacturer/tradename: GranuCult^®
• technique(s): microbe id | utilization test: suitable; microbiological culture: suitable
• pH: 7.2-7.6 (30 °C, 15 g/L in H₂O, after autoclaving)
• solubility: 15 g/L
• bulk density: 650 kg/m³
• application(s): food and beverages; microbiology
• storage temp.: 15-25°C
• suitability: bacteria

Description

Analysis Note

Appearance (clearness): clear
Appearance (colour): red
pH-value (25 °C): 7.2 - 7.6
Growth (Staphylococcus aureus ATCC 25923 (WDCM 00034)): good to very good
Growth (Enterococcus faecalis ATCC 11700): good to very good
Growth (Klebsiella pneumoniae ATCC 13883 (WDCM 00097)): good to very good
Growth (Citrobacter freundii ATCC 8090): good to very good
Growth (Proteus hauseri ATCC 13315): good to very good
Growth (Shigella flexneri ATCC 12022 (WDCM 00126)): good to very good
Growth (Salmonella typhimurium ATCC 14028 (WDCM 00031)): good to very good
Colour change to yellow (Staphylococcus aureus ATCC 25923 (WDCM 00034)): +
Colour change to yellow (Enterococcus faecalis ATCC 11700): +
Colour change to yellow (Klebsiella pneumoniae ATCC 13883 (WDCM 00097)): +
Colour change to yellow (Citrobacter freundii ATCC 8090): +
Colour change to yellow (Proteus hauseri ATCC 13315): +
Colour change to yellow (Shigella flexneri ATCC 12022 (WDCM 00126)): +/- (orange)
Colour change to yellow (Salmonella typhimurium ATCC 14028 (WDCM 00031)): -
Gas (Staphylococcus aureus ATCC 25923 (WDCM 00034)): -
Gas (Enterococcus faecalis ATCC 11700): -
Gas (Klebsiella pneumoniae ATCC 13883 (WDCM 00097)): +
Gas (Citrobacter freundii ATCC 8090): +
Gas (Proteus hauseri ATCC 13315): + (poor)
Gas (Shigella flexneri ATCC 12022 (WDCM 00126)): -
Gas (Salmonella typhimurium ATCC 14028 (WDCM 00031)): -
Incubation: 24 hrs.; 35 °C; aerobic.

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