Color Producing Chemicals

Micrology Laboratories, L.L.C.can media incorporate a combination of color producing chemical with nutrients which result in the growth of coliforms and E. coli as colony forming units of differing colors, for easy identification and isolation. This means that a test sample of water or other material may be added to the specific medium and coliform bacteria will grow as pink-magenta colonies, while E. coli will grow as purple-blue colonies and other bacterial types will generally grow as non-colored colonies. There are two approaches to this method, Easygel and MF.

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