Description
Unit Size: Each
Differentiation of the common microorganisms causing urinary tract infections (UTIs) is achieved through the inclusion of two chromogens that are targeted by specific enzymes: β-galactosidase and β- glucosidase. The action of these enzymes on the chromogens causes release of the coloured component inside the bacterial cell, resulting in coloured colonies. The colour produced depends on which enzymes the organisms produce. β-galactosidase is produced by E. coli, which grow as pink colonies. β- glucosidase is produced by enterococci which form blue or turquoise colonies. Cleavage of both chromogens by the KESC (Klebsiella, Enterobacter, Serratia, Citrobacter) group of coliforms gives dark blue or purple colonies. Tryptophan acts as an indicator of tryptophan deaminase activity (TDA), resulting in colonies of Proteus, Morganella and Providencia spp. with brown halos. Peptone forms the nutritional source within the medium.Brilliance™ UTI Agar devices are used in a diagnostic workflow to aid clinicians in determining potential treatment options for patients suspected of having UTIs. The devices are for professional use only, are not automated and nor are they companion diagnostics.
