Product category:
Culture media
News Release from: Lab M | Subject: HAL 010
Edited by the Laboratorytalk Editorial
Team on 13 February 2006
ISO specified chromogenic listeria
medium
Lab M, has extended its Harlequin range of chromogenic isolation and identification media with the launch of Listeria Chromogenic Agar (Agosti and Ottaviani formulation)
Importantly, HAL 010 is the first dehydrated listeria medium as specified by ISO 11290 It can be used as the primary isolation medium for L monocytogenes in foodstuffs and related materials
This article was originally published on Laboratorytalk on 25 Mar 2004 at 8.00am (UK)
Related stories
Chromogenic media improve isolation of organisms
Range of chromogenic media provides a more specific identification of the target organism which in turn can reduce or eliminate the need for subculture and confirmatory tests
Extensive international validation studies have confirmed the new product to be both sensitive and specific - with a 34% increase in positive isolations over traditional media.
Chromogenic media utilises state-of-the-art detection and identification systems.
Harlequin Listeria incorporates a novel chromogen that results in the formation of an intense pigment that is retained within the colonies.
L monocytogenes is distinguished from other listeria species by the development of a precipitate halo around the colonies.
Presumptive identification is straightforward, reducing the need for subculture and confirmatory testing.
Lab M offers a wide range of chromogenic products, including Salmonella and E coli media.
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