CATALOG INDEX
BY ALPHABETICAL
ORDER

CATALOG INDEX
BY DEPARTMENT

For more info:
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- [ ColiGel ]
- [ E*Colite ]
- [ PathoGel ]

ColiGel

• Quantitation of coliforms and E.coli
  
• Single use, self contained biosafe design
  
• Simple procedure - no filters or media preparation
  
• Easy interpretation

ColiGel is a carbohydrate rich, selective medium particularly adept at resuscitation and detection of chlorine stressed coliform and E.coli encountered in drinking, bottled and food/beverage rinse/dilution waters.

Simple — The bag design houses all test components. Simply add water sample no preparation, no test bottles. The bag also acts as a sample container. There are no collection bottles or loose sodium thiosulfate tablets. Reagents are stable up to 12 months at room temperature.

Procedure — Add water sample and seal the bag. Push the water into the medium compartment. Medium will automatically gel. Incubate in rack or portable incubator at 35°C for 28 hours.

Interpretation — If blue spots appear, coliforms are present. The number of blue spots equals the number of coliforms in the sample. If a blue coliform spot fluoresces under UV light, it is E.coli and the test is complete. If no blue spots fluoresce, continue incubating an additional 20 hours (total 48 hours). The number of blue spots that fluoresce after the 48 hours equals the number of E.coli in the sample. If a blue spot does not fluoresce after 48 hours, the spot is coliform but not E.coli.

Sensitive — ColiGel can detect a single microorganism in 100 ml water.

Easy- ColiGel uses X-gal indicator to produce an indigo blue positive reaction. This blue color, as opposed to traditional yellow color, vastly improves interpretation of turbid or rust and heterotrophic bacteria contaminated waters. All reagents and containers are self enclosed, reducing space for supplies and eliminating accessory inventory, tracking and storage.

Versatile- ColiGel has application to both food and water. Food can be diluted into water up to 10 grams per 100 ml to detect fecal indicators to higher sensitivity levels than conventional techniques. Produce and tissue rinse water may be monitored for fecal surface contamination. For water potability, a non-gelling presence/absence version, E*Colite, has been evaluated under EPA-ATP (alternative test procedure) approval process. However, ColiGel's quantitative results may be desirable for surface water, reclaimed water, or farm water management.

Bio-safe- A self enclosed bactericide is provided to introduce a 7-8 log reduction of any grown organisms before trash disposal. The bactericide provides critical bio-safety for operations without access to an autoclave.