Sigma-Aldrich Dev Lactose Broth For Micr

Quality Level

200

Form

medium granules (dehydrated (DCM))

Manufacturer/Tradename

GranuCult^®

Technique(S)

microbiological culture: suitable

pH

7.1-7.3 (35 °C, 28 g/L in H₂O, after autoclaving)

Solubility

28 g/L

Bulk Density

640 kg/M³

Application(S)

food and beverages
microbiology

Storage Temp.

15-25°C

Suitability

Escherichia coli
coliforms

Related Categories

Microbial Culture Media

Analysis Note

Appearance (clearness): clear
Appearance (colour): violet
pH-value (25 °C): 7.0 - 7.4
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): good to very good
Growth (Klebsiella pneumoniae ATCC 13883 (WDCM 00097)): good to very good
Growth (Salmonella typhimurium ATCC 14028 (WDCM 00031)): good to very good
Growth (Proteus hauseri ATCC 13315): good to very good
Growth (Enterococcus faecalis ATCC 11700): good to very good
Colour change to yellow (Escherichia coli ATCC 25922 (WDCM 00013)): +
Colour change to yellow (Klebsiella pneumoniae ATCC 13883 (WDCM 00097)): +
Colour change to yellow (Salmonella typhimurium ATCC 14028 (WDCM 00031)): -
Colour change to yellow (Proteus hauseri ATCC 13315): -
Colour change to yellow (Enterococcus faecalis ATCC 11700): +/-
Gas (Escherichia coli ATCC 25922 (WDCM 00013)): +
Gas (Klebsiella pneumoniae ATCC 13883 (WDCM 00097)): +
Gas (Salmonella typhimurium ATCC 14028 (WDCM 00031)): -
Gas (Proteus hauseri ATCC 13315): -
Gas (Enterococcus faecalis ATCC 11700): -
Incubation: 40-48 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.GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, GermanyNutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany