Listeria Oxford Medium Base, 500G

Listeria Oxford Medium Base is used for isolation of Listeria species from clinical and food specimens. Although the selectivity of the medium is enough to allow the isolation and differentiation by direct surface inoculation, a previous dilution of the inoculum is advisable or even more when the sample is highly polluted. The techniques for isolation vary with the material under examination. For all specimens selective and cold enrichment is recommended. Application: For Laboratory Chemicals, Analytical Purpose, Biochemical Analysis Appearance: Light yellow to dark yellow homogeneous free flowing powder Gelling: Firm, comparable with 1.0% Agar gel Color and Clarity of prepared medium: Dark amber colored clear to slightly opalescent gel with a blue cast forms in Petri plates Reaction: Reaction of 5.55% w/v aqueous solution at 25°C. pH : 7.0±0.2 Cultural Response: Cultural characteristics observed with added Oxford Listeria Supplement (FD071) or Listeria Moxalactam supplement(FD126), after an incubation at 35-37°C for 24-48 hours