HiCromeâ„¢ M-TEC Broth 500G

It is chromogenic media used for detection and enumeration of thermotolerant Escherichia coli (TEC) in water by membrane filtration. It contains the chromogen, 5-bromo-6-chloro-3-indolyl-β-D-glucuronide that is cleaved by enzyme ß-Dglucuronidase to yield glucuronic acid, produced by Escherichia coli strains. This imparts a purple-magenta colour to the colonies of Escherichia coli only.