RAPID'Salmonella Medium is a sensitive chromogenic agar used for the detection and enumeration of Salmonella spp. in products that are intended for human and animal consumption.
The principle of RAPID'Salmonella Medium relies on the expression of two enzymatic activities. Salmonella spp. takes the form of easily identifiable typical magenta colonies (due to the activity of a C8 esterase) in 24 h. Counter selection (β-D glucosidase) is used to reveal other bacteria with a different colour. The medium can detect motile and non-motile Salmonella as well as lactose-positive Salmonella, including S. Typhi and S. Paratyphi.
The high specificity and high selectivity of the medium are due to a combination of enzymatic activities and the inhibition of contaminating food flora.
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