HardyCHROM ESBL Agar is a selective and differential chromogenic medium, containing an extended-spectrum beta-lactam, intended for use as a plating technique to obtain a pure culture of Enterobacteriaceae that produce extended-spectrum beta-lactamase (ESBL)
The selective components in HardyCHROM ESBL Agar are agents that inhibit the growth of yeast, gram-positive bacteria and gram-negative extended-spectrum beta-lactam-sensitive bacteria (e.g., a cephalosporin)
The presence of chromogens allows the differentiation of Enterobacteriaceae that produce ESBL
The colonies of those bacteria that release products when they use the chromogens as a substrate source appear colored
