HardyCHROM Salmonella is a chromagenic medium recommended for the selective isolation and differentiation of Salmonella spp from other members of the Enterobacteriaceae family based on colony colour.

Selective agents inhibit the growth of gram-positive organisms. Artificial substrates (chromogens) are broken down by specific microbial enzymes which release insoluble coloured compounds.

• Salmonella species will produce deep pink to magenta colour coloured colonies
• Other bacteria may utilize the chromagenic substrates and produce blue colonies
• If none of the substrates are utilized, natural or white colonies will be present
• E. coli will be partially inhibited