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Rapid and reliable test for E.coli.


A new test for the simultaneous detection of coliforms and enumeration 1. (mathematics) enumeration - A bijection with the natural numbers; a counted set.

Compare well-ordered.
2. (programming) enumeration - enumerated type.
 of E. coli E. coli: see Escherichia coli.
E. coli
 in full Escherichia coli

Species of bacterium that inhabits the stomach and intestines. E. coli can be transmitted by water, milk, food, or flies and other insects.
 in food products which brings significant advantages Over traditional methods of detecting coliforms and E.coli, is now available from Schleicher & Schuell MicroScience.

MI BLUE Agar Agar, in the Bible
Agar (ā`gər), the same as Hagar.
agar, substance obtained from seaweed
agar (ä`gär, ā`–, ăg`är) 
 is a rapid test providing a quick turn around, delivering, resulting within a 6 to 8 hour time span. The test detects the presence of the bacterial enzymes [beta]Galactosidase galactosidase /ga·lac·to·si·dase/ (-si´das) an enzyme that catalyzes the cleavage of terminal galactose residues from a variety of substrates; several such enzymes exist, each specific for a- or ß-linked sugars and further specific for  and [beta]Glucoronidase produced by coliforms and E.coli respectively.

Coliforms produce fluorescent colonies when exposed to long-wave ultraviolet light Ultraviolet light
A portion of the light spectrum not visible to the eye. Two bands of the UV spectrum, UVA and UVB, are used to treat psoriasis and other skin diseases.
, while Coliforms other than E.coli show blue-white fluorescence; E.coli colonies are blue in colour with blue to blue-green fluorescence and may exhibit a fluorescent halo. It produces blue colonies on MI Blue under ambient light doe to the breakdown of IBDG by the bacterial enzyme [beta]-Glucurondase. This test enables blue E.coli colonies to be counted on plates with heavy particulates or high concentrations of total bacteria, without the need for an additional confirmation test or the expense of other capital equipment. MI Blue Agar requires just one incubation temperature of 42[degrees]C and provides a true quantitative method of a true count versus a statistical most probable number value.

Contact Schleicher & Schuell on tel. 0208361 3111 or visit: www.schleicher-schuell.de
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Title Annotation:plant & equipment
Publication:Food Trade Review
Article Type:Brief Article
Geographic Code:1USA
Date:Mar 1, 2004
Words:216
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