GranuCult® prime OF (Oxidative/Fermentative) Base

according to ISO (21528)


according to ISO (21528)

Quality Level




microbe id | utilization test: suitable
microbiological culture: suitable

Featured Industry

Food and Beverages

antibiotic activity spectrum

Gram-negative bacteria


Alcaligenes spp.
Chromobacterium spp.
Moraxella spp.
Pasteurella spp.
Acinetobacter spp.
Aeromonas spp.
Bordetella spp.
Campylobacter spp.
Enterobacter spp.
Escherichia coli
Pseudomonas spp.
Salmonella spp.
Shigella spp.
Vibrio spp.
Yersinia spp.
nonselective for bacteria

General description

The GranuCult® prime OF (Oxidative/Fermentative) medium is designed for the confirmation and identification of gram-negative bacteria based on oxidative or fermentative metabolism of carbohydrates. The medium is supplemented with glucose for the confirmation of Enterobacteriaceae present in the test samples. The pH indicator, bromothymol blue indicates the degradation of the carbohydrate by a color change reaction (blue to yellow). The reaction can take place either aerobically or anaerobically.


The GranuCult® prime OF (Oxidative/Fermentative) medium is used to grow bacteria which can metabolize carbohydrates. The medium can also promote growth of all aerobic, anerobic and facultative aerobic bacteria.


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

Certificate of Analysis

Certificate of Origin

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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