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BAM Media M131a: Rapid L. mono Medium

January 2003

Bacteriological Analytical Manual

Rapid' L. mono Medium

Peptones30 g
Meat extract5 g
Yeast extract1 g
Lithium chloride9 g
Selective supplementa20 ml
D-Xylose10 g
Phenol red0.12 g
Agar Ba13 g
Chromogenic substratea1 ml
Water, distilled1000 ml
aProprietary information.


Final pH is 7.3 ± 0.1. Store at 2 - 8 °C in dark in original packaging. Shelf life is 4 months under these conditions. The medium is available as ready-poured Petri dishes from, e.g. Bio-Rad http://www.biorad.com disclaimer icon Due to the presence of D-xylose and phenol red this agar can distinguish L. ivanovii and L. monocytogenes.