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This is a general-purpose complex medium for cultivation and isolation of fastidious bacteria, yeasts and moulds. The formulation is based on the United States Pharmacopoeia (USP Medium II) and European Pharmacopoeia (EP Medium B). Lecithin and Polysorbate 80 (Tween 80) are added to inactivate surface disinfectants (Lecithin neutralises quaternary ammonium compounds and Tween 80 neutralises phenols, formalin, hexachlorophene and in combination with the Lecithin ethanol). The medium can be incubated under aerobic or anaerobic conditions for sterility testing, air sampling and other areas of bacteriological investigation. This product is wrapped in barrier film to allow for use in Vaporised Hydrogen peroxide sterilisation systems. This particular product is triple wrapped and terminally sterilised by Gamma irradiation. Dose Range: 8.0 kGy - 15.0kGy -
This is a general-purpose complex medium for the cultivation and isolation of aerobic and anaerobic microorganisms. The base medium, Tryptone Soya Agar (Soybean-Casein Digest agar), conforms to the Harmonized United States Pharmacopoeia (USP), European Pharmacopoeia (EP), and Japanese Pharmacopoeia (JP). Histidine and Sodium Thiosulphate are added to inactivate surface disinfectants (Lecithin neutralises quaternary ammonium compounds, Tween 80 and Histidine neutralises phenols, formalin, hexachlorophene and, in combination with the Lecithin, ethanol and Sodium Thiosulphate inactivates mercurials, halogens and aldehydes). The medium can be incubated under aerobic or anaerobic conditions for sterility testing, air sampling and other areas of bacteriological investigation. This product is wrapped in barrier film to allow for use in Vaporised Hydrogen peroxide sterilisation systems. This particular product is triple wrapped and terminally sterilised by Gamma irradiation. Dose Range: 8.0 kGy - 15.0kGy -
Violet Red Bile Glucose Agar Violet Red Bile Glucose Agar is a selective medium for the isolation and enumeration of enterobacteriacae in food products. It is a modification of the original Violet Red Bile Agar (PP1150) with the Lactose being replaced with Glucose. As all members of the enterobacteriacae ferment Glucose it allows for a wider range of organisms to be detected. The medium is made selective by the inclusion of Bile Salts and Crystal Violet to inhibit gram-positive and other non-enteric organisms. -
This is a medium for determining the mutagenicity of a chemical reagent using the Ames Test. A histidine requiring strain (His- ) of Salmonella typhimurium is inoculated into a mixture of salt agar, histidine solution and the test reagent, which is mixed and then used to overlay the media. Following incubation if the test reagent is mutagenic it will reverse the His- phenotype allowing growth to occur at a higher level than the control. -
Originally introduced as an aid to recovery of Shigella spp. XLD is also a first class medium for recovery of Salmonella spp. It differs from other media of this type in that it has less Sodium Desoxycholate as its selective agent. The indicator system is somewhat complex taking advantage of the fermentation or otherwise of three carbohydrates (Lactose Sucrose and Xylose) together with Lysine Decarboxylase and Sodium Thiosulphate as an indication of the presence or absence of Hydrogen Sulphide. -
Xylose Lysine Deoxycholate (XLD) Agar is used for the isolation and detection of Salmonella and Shigella spp. It differs from other media of this type in that it has less sodium deoxycholate as its selective agent. The indicator system is somewhat complex taking advantage of the fermentation or otherwise of three carbohydrates (lactose, sucrose and xylose) together with lysine decarboxylase and sodium thiosulphate as an indication of the presence or absence of hydrogen sulphide. The addition of novobiocin (20mg/L) improves the inhibition of Proteus spp. -
A nutrient agar corresponding to the standard formulation described in ISO 6222:1999. -
This is a selective medium for the isolation and enumeration of yeasts and moulds in dairy products. The medium has a low pH to inhibit bacterial growth and is made more selective by the inclusion of chloramphenicol. It complies with the requirements of ISO 6611 for the enumeration of yeasts and moulds . -
This is a selective medium for the isolation and enumeration of Yersinia spp. in clinical and food samples. It is made selective by the inclusion of Sodium desoxycholate, Crystal violet and the antimicrobials Cefsulodin, Novobiocin and Irgasan. Mannitol is also included which Yersinia ferments giving a colony that produces a ‘Bull’s Eye’ appearance. The majority of other enteric organisms are inhibited but if they do grow they produce a large pinkish colony with an opaque halo.
