Analysis Note

Appearance (clearness): clearAppearance (colour): redpH-value (25 °C): 7.2 - 7.6Solidification behaviour (2 hrs., 45 °C): liquidGrowth promotion test in accordance with the current version of DIN EN ISO 11133.Inoculum on reference medium (Escherichia coli ATCC 8739 (WDCM 00012)): Colony count (Escherichia coli ATCC 8739 (WDCM 00012)): Recovery on test medium (Escherichia coli ATCC 8739 (WDCM 00012)): ≥ 50 %Colony colour (Escherichia coli ATCC 8739 (WDCM 00012)): purplish-red colonies with or without precipitate haloInoculum on reference medium (Escherichia coli ATCC 25922 (WDCM 00013)): Colony count (Escherichia coli ATCC 25922 (WDCM 00013)): Recovery on test medium (Escherichia coli ATCC 25922 (WDCM 00013)): ≥ 50 %Colony colour (Escherichia coli ATCC 25922 (WDCM 00013)): purplish-red colonies with or without precipitate haloInoculum on reference medium (Enterobacter cloacae ATCC 13047 (WDCM 00083)): Colony count (Enterobacter cloacae ATCC 13047 (WDCM 00083)): Recovery on test medium (Enterobacter cloacae ATCC 13047 (WDCM 00083)): ≥ 50 %Colony colour (Enterobacter cloacae ATCC 13047 (WDCM 00083)): purplish-red colonies with or without precipitate haloGrowth (Pseudomonas aeruginosa ATCC 27853 (WDCM 00025)): no limitColony colour (Pseudomonas aeruginosa ATCC 27853 (WDCM 00025)): colourless to beige coloniesGrowth (Enterococcus faecalis ATCC 19433 (WDCM 00009)): total inhibitionGrowth (Enterococcus faecalis ATCC 29212 (WDCM 00087)): total inhibitionIncubation: 24 ± 2 hours at 30 ± 1 °CReference media: Tryptic Soy AgarA recovery rate of 50 % is equivalent to a productivity value of 0.5.The indicated colony counts result from the sum of a triple determination.

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

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

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

Linkage

Replaces: 1014065007

Packaging

5 kg in Plastic drum

500 g in Plastic bottle