3M™ Petrifilm™ Select E.coli Count Plate

24 hour results

3M™ Petrifilm™ Select E.coli Count Plate is a sample-ready-culture medium system that contains selective agents, nutrients, a cold-water-soluble gelling agents,nutrients, a cold-water-soluble gelling agemt and an indicator of glucuronidase activity, 5-bromo-4-chloro-3-indolyl-D-glucuronide (BGIG) which facilitates colony enumeration.

About 97% of E.coli strains are thermotolerant and produce beta-glucoronidase, an enzyme that reacts with BCIG indicator in 3M™ Petrifilm™ Select E.coli count plates to produce dark green to blue-green colonies. 3M™ Petrifilm™ SELECT E.coli Count Plates will not detect E.coli O157 as most strains are atypical. They are glucuronidase negative, and will not produce a blue-green colony.

Count all green to blue-green colonies as E.coli whether there are gas bubbles present or not.

24 hour E.coli results in 3 easy steps: –