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CompactDry CF

Coliforms

Incubation Time
24 +/- 2 hours

Incubation Temperature
37 +/- 1°C (MicroVal / NordVal)
35 +/- 2°C (AOAC)

Coliforms are gram-negative, facultative anaerobic, non-spore forming bacteria and commonly found in animal intestines and soil. The term "coliform" refers to enteric bacteria found in...

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Quantity

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40 plates 54053-0CF-0040
240 plates 54053-0CF-0240
1400 plates 54053-0CF-1400

Coliforms are gram-negative, facultative anaerobic, non-spore forming bacteria and commonly found in animal intestines and soil. The term “coliform” refers to enteric bacteria found in food stuff such as meat, shellfish, dairy products, other foods and in particular water.

Bacteria such as Shigella, Salmonella, Yersinia, Citrobacter, Klebsiella, and Enterobacter are all coliforms, but the most recognized coliform is Escherichia coli. Testing for the presence of coliform is important in the food industry especially in monitoring water quality.

 

Advantages of using CompactDry CF to test for coliforms in food and beverages.

CompactDry CF is a ready to use dehydrated media plate used to detect coliform bacteria in food and beverages. Coliform bacteria are an indicator of the presence of enteric pathogens in water, meat, seafood, dairy and other foods.

Monitoring and identification of coliforms is used at each step of the food production process as a quality control parameter. The CompactDry CF selective media contains the chromogenic enzyme substrate X-Gal which result in a blue to blue/green colonies. CompactDry CF enables easy culture and coliform count in solid food stuff (homogenized with buffer solution), water/liquid samples and swab based environmental testing for surfaces and production areas.

The media contains the chromogenic enzyme substrate X-Gal and coliforms colonies are coloured blue/blue green.

The growth of other bacterial types (genius) is mostly inhibited but in certain instances may form colourless colonies.

Blue / Blue Green

General protocol

Step #1
1

Remove the cap

Step #2
2

Dispense 1 mL of sample in the middle of the CompactDry plate

Step #3
3

The sample diffuses passively and evenly across the dehydrated media sheet, rehydrating the dry medium into a gel within seconds

Step #4
4

Replace the lid and label the plate

Step #5
5

Turn over the plate (lid down) and incubate for the appropriate time and temperature

Step #6
6

Following incubation, count the number of coloured microbial colonies

Incubation Time
24 +/- 2 hours

Incubation Temperature
37 +/- 1°C (MicroVal / NordVal)
35 +/- 2°C (AOAC)

Shelf Life
24 months

Storage Temperature
RT +1°C to +30°C

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