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Contact VRBG + Neutralizers
VRBG agar (Violet Red Bile Glucose agar) with neutralizers is used for the detection and enumeration of Enterobacteriaceae, but also for the detection of Gram-negative and bile salt resistant bacteria. This media is used for critical control points in industry (e.g. protected areas, microbiological monitoring programmes for surfaces and industrial environments).
Available as ready-to-use medium : VRBG 20 plates of Ø 65mm
In compliance with regulatory requirements, a USDA permit (VS 16-3) is mandatory for shipments from Canada to the USA due to the inclusion of peptone, an animal byproduct.
The media forms a convex meniscus that allows direct application of the agar to the control areas, whether on walls, floors, utensils, or staff. The media contains several neutralizers that inhibit any disinfectant residues on the surfaces to be tested, in order to assess the levels of contamination before and after disinfection of the food chain environment.
The neutralizers are selected to inactivate disinfectant residues that may be present on the surfaces, such as aldehydes and phenols, quaternary ammoniums, oxidising compounds.
The simultaneous presence of crystal violet and bile salts ensures the inhibition of Gram-positive bacteria.
The degradation of glucose to acid is revealed by the red colour of the pH indicator, neutral red.
