LISTERIA SELECTIVE BROTH BASE

Listeria monocytogenes is a short, gram-positive, non-spore-forming rod shaped bacterium that appears coccoidal in older cultures. Listeria multiplies over a wide range of temperatures from 3?C to 45?C with optimum temperature range of 30?C to 37?C. L.monocytogenes has been isolated from numerous environmental sources such as silage, soil, decaying vegetation, sewage, damp earth, straw and faeces . Detection of L.monocytogenes in foods is not difficult. Low numbers of organisms are commonly isolated from raw milk, meat, vegetables, seafood and the food-processing environment. Enrichment procedures are used to isolate low numbers of L.monocytogenes.
Listeria Selective Broth is formulated as per Lovett et al for the selective enrichment of Listeria species from milk and milk products and other foods. Listeria Selective Broth is recommended by ISO Committee with a slight modification in the supplement.

for selective isolation and cultivation of Listeria monocytogenes from clinical specimens