Media for Microbiology

Supplier: Merck

Merck products offer high quality for applications in the microbiology field.

Supplier: Merck

Readycult® Coliform and Readycult® Enterococci make it easy to detect coliforms, E. coli or faecal streptococci in water. You only need a sterile container and a UV lamp (Cat. No. 1.13203.0001).

Supplier: Merck

Selective medium for the detection of Enterobacter sakazakii in milk powder and powdered infant formula. The base in Chromocult ® Enterobacter sakazakii agar allows good growth and strong colour formation of E. sakazakii colonies. The addition of inhibitors and the incubation temperature of 44 °C largely reduce the growth of the majority of gram-positive and gram-negative accompanying flora. E. sakazakii  is ß-D-glucosidase positive and grows as blue-green colonies on this medium. Incubation: 24 ±2 hours at 44 ±1 °C. Incubation temperature has a strong influence on sensitivity and selectivity of this method. Temperatures higher than 45 °C will inhibit the growth of E.sakazakii. Temperatures below 43 °C will reduce inhibition of accompanying bacteria.

Supplier: Merck

NutriSelect^® prime tryptic soy broth halal is designed as a combination of two peptones, enzymatic digest of casein and of soy-bean, which provides a high nutrition by supplying organic nitrogen, amino acids, and longer-chained peptides. The osmotic balance is maintained by sodium chloride and dipotassium phosphate acts as a buffer. NutriSelect^® prime tryptic soy broth halal is used for the isolation and cultivation of a wide range of microorganisms from test samples.

Supplier: VWR Chemicals

Scholten's agar (modified)

Supplier: Avantor

Faucet diluting fluid

Supplier: Merck

The isolation of microorganisms often requires the use of selective media. The use of freeze-dried supplements ensures an optimal and standardised medium preparation and thus optimised performance of the selective medium.

Supplier: Merck

Chromogenic media offer a method for rapid identification of characteristic bacterial enzymes. Merck offers a wide range of solid and liquid culture media that also permits the fluorescence detection of E. coli under the trade name Fluorocult®. Fluorocult® culture media have the same components as the standard media and additionally the substrate MUG. Some of the media also contain tryptophan as the substrate for a possible indole reaction to further confirm E. coli presence. The Fluorocult® method can produce a positive result within just 24 to 48 hours. In the case of the chromogenic media, a direct identification, using the characteristic colony colouring on the culture medium itself is possible without the application of further additives. A differentiation of positive single colonies is possible, even when high microbial counts are present.

Supplier: Merck

EC (Escherichia coli) broth

Supplier: Merck

Dehydrated media are used for a wide variety of applications. To minimise the risks associated with powdered culture media, the majority of Merck's dehydrated culture media is produced in granular form. Merck uses ingredients of non animal origin to minimise the potential risk of transmissible spongiform encephalitis (TSE). When there is no alternative, only ingredients which are recommended by EDQM, and belonging to TSE category B or C are used. This ensures that the product is of the highest quality and in compliance with the standards for food control, microbiological testing on finished products and starting materials, and quality control in the pharmaceuticals and cosmetics industries. Custom-made media can be prepared to meet individual customer specifications. The formulation is kept confidential via a Non Disclosure Agreement. Please enquire for further details. Advantages of granulated Merck media.

Supplier: Merck

This medium is recommended for the detection of yeasts and molds in soft drinks and other beverages.

Supplier: Merck

Bactident® Indole, Application: Biochemical

Supplier: Merck

Media is granulated.

Supplier: Merck

This medium conforms to the ALOA (agar Listeria acc. to Ottaviani and Agosti) medium, a selective medium for the isolation of Listeria monocytogenes in food (AFNOR-validated method). It also enables the testing, sampling and enumeration of Listeria monocytogenes and Listeria spp. in foodstuffs and other source materials. The rich base of the Chromocult® Listeria selective agar encourages excellent growth. The supplement of inhibitors stops most of the bacteria, yeast and fungi from growing. In contrast, Listeria is uninhibited in its growth, producing blue-green colonies; L. monocytogenes also form an opaque halo.

Supplier: Merck

For the enumeration, detection and identification of β-glucuronidase positive Escherichia coli from food and feeding stuff as well as from environmental samples in the area of food production and food handling.

Supplier: Merck

Be assured that Merck offers the quality TSB that you are looking for in your aseptic process simulation.