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CompactDry™ E. coli & coliforms (EC)
100 tests per box
Compact Dry is a simple and safe procedure for determining and quantifying microorganisms in food, cosmetics and other raw materials, including pharmaceuticals. The ready-to-use Compact Dry chromogenic plates are suitable for both in-process and final product controls.
Coliforms are characterized by being gram-negative bacilli that do not form spores, defined by their ability to ferment lactose, acid and/or carbon dioxide gas. The enzyme in charge of degrading lactose is the β-galactosidase and all bacteria of the coliform group possess it.
On the other hand Escherichia coli has an extra enzyme called β-glucoronidase. Compact Dry EC is capable of detecting the enzyme β-galactosidase of the coliforms and the enzyme β-glucoronidase of E. coli.
The medium contains two types of chromogenic enzyme substrate, Magenta-GAL and XGLUC. Coliform colonies are red/pink in color, except for E. coli colonies, which generates a blue/blue-purple coloration. The total number of coliforms is the total number of combined red and blue colonies.
Specifications:
Matrix: Raw materials, finished products, environmental samples from the food, cosmetics and pharmaceutical industries, among others.
Incubation time and temperature: Incubate at 35 ± 2 °C for 24 ± 2 hours
Presentation: Packs of 4 units
Keep at room temperature, from 1 to 30 °C. Shelf life 18 months.
Mode of use:
Remove the cover.
Deposit 1 ml of the sample in the center of the surface of the Compact Dry plate.
The sample is automatically and homogeneously dispersed on the film and transforms the dry film into a gel in a few seconds.
Replace the cover on the plate. Incubate for the prescribed time.
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