Product Code TM 2122
Chromogenic ECC Selective Agar, Modified is a selective medium recommended for the simultaneous detection of Escherichia coli and total coliforms in water and food samples. The chromogenic mixture contains two chromogenic substrates. The enzyme ?-D-galactosidase produced by coliforms cleaves one of the chromogen to form salmon to red coloured colonies. The enzyme ?-D-lucuronidase produced by E.coli, cleaves X-glucuronide, the other chromogen. Colonies of E.coli give dark blue to violet coloured colonies due to cleavage of both the chromogens.
for detection of Escherichia coli and coliforms in water and food samples
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