Lauryl sulfate Broth

200

medium granules (dehydrated (DCM))

GranuCult^®

microbiological culture: suitable

6.8 (35.5 g/L in H₂O)

food and beverages
microbiology

15-25℃

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.

Replaces: 1.10266.5007

Appearance (clearness): clear
Appearance (colour): yellowish-brown
pH-value (25 °C): 6.6 - 7.0
Growth promotion test in accordance with the current version of DIN EN ISO 11133.
Inoculum on reference medium (Escherichia coli ATCC 25922 (WDCM 00013)): ≤ 100
Inoculum on reference medium (Escherichia coli ATCC 8739 (WDCM 00012)): ≤ 100
Inoculum on reference medium (Citrobacter freundii ATCC 43864 (WDCM 00006)): ≤ 100
Inoculum on reference medium (Enterococcus faecalis ATCC 19433 (WDCM 00009)): >10⁴
Inoculum on reference medium (Enterococcus faecalis ATCC 29212 (WDCM 00087)): >10⁴
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): +
Growth (Escherichia coli ATCC 8739 (WDCM 00012)): +
Growth (Citrobacter freundii ATCC 43864 (WDCM 00006)): +
Growth (Enterococcus faecalis ATCC 19433 (WDCM 00009)): none
Growth (Enterococcus faecalis ATCC 29212 (WDCM 00087)): none
Gas (Escherichia coli ATCC 25922 (WDCM 00013)): +
Gas (Escherichia coli ATCC 8739 (WDCM 00012)): +
Gas (Citrobacter freundii ATCC 43864 (WDCM 00006)): +
Gas (Enterococcus faecalis ATCC 19433 (WDCM 00009)): -
Gas (Enterococcus faecalis ATCC 29212 (WDCM 00087)): -
Incubation:
Escherichia coli: 24 ± 2 hours at 30 ± 1 °C and parallel 24 ± 2 hours at 37 ± 1 °C
Citrobacter: 24 ± 2 hours at 30 ± 1 °C
Enterococcus faecalis: 48 ± 2 hours at 30 ± 1 °C and parallel 48 ± 2 hours at 37 ± 1 °C

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

11 - Combustible Solids

WGK 2