Starting at $80.58
|Acumedia||BD / Difco||BD / BBL||Oxoid||Merck|
|Fraser Broth (7626)||N/A||N/A||N/A||1.05467|
Fraser Broth is used with Acriflavin, Nalidixic Acid, and Ferric Ammonium Citrate for the selective enrichment of Listeria spp.
Product Summary and Explanation
Listeria monocytogenes, described first in 1926 by Murray, Webb and Swann, is an extensive problem in public health and food industries. This organism has the ability to cause human illness and death, particularly in immunocompromised individuals and pregnant women. Epidemiological evidence from outbreaks of listeriosis indicated the principle route of transmission is via the consumption of foodstuffs contaminated with Listeria monocytogenes. Implicated vehicles of transmission include turkey frankfurters, coleslaw, pasteurized milk, Mexican style cheese and pate.
Fraser Broth is based on the formulation of Fraser and Sperber. This medium is used in rapid detection of Listeria from food and environmental samples. Listeria spp. grow over a pH range of 5.0 - 9.6, and survive in food products with pH levels outside these parameters. Listeria spp. are microaerophilic, Gram-positive, asporogenous, non-encapsulated, non-branching, short, motile rods. Motility is pronounced at 20°C. Identification of Listeria spp. is based on successful isolation of the organism, biochemical characterization, and serological confirmation.