Plating media for the identification of Salmonella

Details Plating media for the identification of Salmonella Plating media for the identification of Salmonella

2006-12-19

2006-12-19

Wax, Robert A. (Department: 1653)

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving viable micro-organism

C435S034000, C435S014000, C435S018000

Reexamination Certificate

active

07150977

ABSTRACT:
An isolation plating medium for the identification ofSalmonellabacteria in a sample containing a plurality of different bacteria comprising a mixture of a carbohydrate capable of being a metabolic source forSalmonellabacteria and supporting colonies ofSalmonellabacteria, a pH indicator dye that changes the color of the plating medium to a first color different from the color of the medium responsive to a change in the pH of the medium, a first substrate that does not react withSalmonellabacteria and injects color into the medium of a second color responsive to the presence of beta-galactosidase, the second color contrasting with the first color and the color of the medium, a second substrate that does not react withSalmonellabacteria and injects color into the medium of substantially the same color as the second color responsive to the presence of beta=galactosidase, and an ingredient for thickening the mixture in sufficient quantity to solidify the mixture.

REFERENCES:
patent: 5434056 (1995-07-01), Monget et al.
patent: 5726031 (1998-03-01), Roth et al.

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