Lactose, Bouillon pour la culture de Salmonella et de coliformes à partir de l'eau, des aliments, des produits laitiers et pharmaceutiques.

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Lactose Broth
Intended Use
Lactose Broth is used for detection of the presence of coliform organisms, as a pre-enrichment broth for salmonellae and in the study of lactose fermentation of bacteria in general.

Principles of the Procedure
The peptone and beef extract provide essential nutrients for bacterial metabolism. Lactose provides a source of fermentable carbohydrate for coliform organisms. Growth with the formation of gas is a presumptive test for coliforms.

Formula
Difco™ Lactose Broth
Approximate Formula* Per Liter
Beef Extract : 3.0 g
Peptone : 5.0 g
Lactose : 5.0 g
*Adjusted and/or supplemented as required to meet performance criteria.

Identity Specifications
Difco™ Lactose Broth
Dehydrated Appearance: Light beige to light tan, free flowing, homogeneous.
Solution: 1.3% solution, soluble in purified water upon slight warming.
Solution is light amber, clear.
Prepared Appearance: Light amber, clear.
Reaction of 1.3%
Solution at 25°C: pH 6.9 ± 0.2

Poids	0,72 Kg   (720 g)
Volume	0,0056 m³   (5600 cm³)
Largeur	0,15 m   (15 cm)
Longueur	0,15 m   (15 cm)
Hauteur	0,25 m   (25 cm)

Les dimensions, le poids et le volume sont bruts (emballage inclus)