Sigma-Aldrich Tetrathionate Enrichment B

Quality Level

200

Form

medium granules (dehydrated (DCM))

Manufacturer/Tradename

GranuCult^®

Technique(S)

microbiological culture: suitable

pH

7.6 (37 °C, 82 g/L in H₂O, after autoclaving)

Solubility

82 g/L

Bulk Density

1100 kg/M³

Application(S)

food and beverages
microbiology

Storage Temp.

15-25°C

Suitability

Salmonellaspp.

Related Categories

Microbial Culture Media

Analysis Note

Appearance (clearness): turbid with sediment
Appearance (colour): green
Inoculum (Escherichia coli ATCC 25922 (WDCM 00013)): about 99 %
Inoculum (Salmonella typhimurium ATCC 14028 (WDCM 00031)): about 1 %
Enrichment from a mixed inoculum after 6 hours (Escherichia coli ATCC 25922 (WDCM 00013)):
Enrichment from a mixed inoculum after 6 hours (Salmonella typhimurium ATCC 14028 (WDCM 00031)):
Enrichment from a mixed inoculum after 24 hours (Escherichia coli ATCC 25922 (WDCM 00013)): ≤ 5 %
Enrichment from a mixed inoculum after 24 hours (Salmonella typhimurium ATCC 14028 (WDCM 00031)): ≥ 95 %
Incubation: 35 °C; aerobic; detection with BROLACIN agar.

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