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Confirm’ Listeria Mono Broth
The CONFIRM’ L. mono broth ® is a liquid media destined for the confirmation of the genus & species Listeria monocytogenes, isolated from a single characteristic colony from COMPASS® Listeria Agar, within the context of the alternative methods for the detection and enumeration of Listeria monocytogenes certified NF VALIDATION.
Available in ready-to-use medium: 18 tubes of 1 ml.
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 COMPASS® Listeria method allows the detection of Listeria monocytogenes by the formation of blue to blue- green colonies surrounded by an opaque halo. Certain strains of Listeria ivanovii can present the same characteristics, but usually of a much smaller size. These two species must be differentiated by confirmation tests.
The CONFIRM’ L. mono broth® is based on the correlation between the pathogenicity and the fermentation of rhamnose leading to an acidification with bacteria belonging to the genus Listeria as demonstrated by Groves & Welshimer in 1977.
CONFIRM’ L. mono broth® therefore permits a distinction between Listeria monocytogenes (rhamnose positive) from Listeria ivanovii (rhamnose negative).