differential medium

differential medium

a MEDIUM that can allow different types of ORGANISM to be distinguished by their different forms of GROWTH. For example, MacConkey's agar differentiates ENTEROBACTERIA that ferment LACTOSE from non-lactose fermenters (NLFs). Colonies of the lactose fermenters are red or pink, while those of NLFs are colourless.
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Development of an improved selective and differential medium for isolation of Salmonella spp.
Potassium tellurite medium, serves as a selective and differential medium for Cornyebacterium sp.
Further support is provided with the inclusion in the range of semi-solid MSRV Medium for the rapid detection of motile Salmonellae; Diassalm, a semi solid differential medium for the isolation of Salmonella spp.
A new selective differential medium for isolation of Stenotrophomonas maltophilia.

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