Coliform ChromoSelect Agar

Descrição detalhada : Coliform ChromoSelect Agar is a chromogenic mixture which contains two chromogenic substrates, Salmon-GAL and X-glucuronide. Coliforms produce an enzyme called ?-D-galactosidase, which cleaves Salmon-GAL, resulting in the salmon-to-red coloration of coliform colonies. The enzyme ?-D-glucuronidase produced by Escherichia coli cleaves X-glucuronide. Escherichia coli forms dark blue-to-violet colored colonies due to cleavage of both Salmon-GAL and X-glucuronide. The addition of tryptophan improves the indole reaction, thereby increasing detection reliability in combination with the two chromogens. To confirm Escherichia coli, add a drop of Kovac?s reagent (Catalog No. 60983) on the dark blue-to-violet colony. Formation of cherry-red color indicates the positive reaction.
Sinónimos : Coliform Agar ChromoSelect
Armazenamento : Room Temperature
Embalagem : 1X500G