Petrifilm SEC Select E.coli Count

RAPID E. COLI ENUMERATION IN 24 HOURS

Selective for E. coli using chromogenic indicators for clear, identifiable blue colonies.
Built-in gas detection allows rapid confirmation of E. coli through associated gas bubbles.
Ready-to-use dry film eliminates agar preparation and reduces hands-on time.
Compact, standardised format supports consistent colony recovery and high-throughput testing.

Neogen 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 agent 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 Neogen Petrifilm™ Select E.coli count plates to produce dark green to blue-green colonies. Neogen 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.

Interpretation

Count all green to blue-green colonies as E.coli whether there are gas bubbles present or not. Plates can be read using the Neogen Petrifilm Plate Reader Advanced.