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1.46476

Millipore

ReadyTube® Half Fraser Broth

For enrichment of samples for Listeria sp. and Listeria monocytogenes in accordance to ISO 11190, pkg of (225 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))

Synonyme(s) :

Fraser Broth

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About This Item

Code UNSPSC :
41106212
Nomenclature NACRES :
NA.74

Agence

ISO 11190

Niveau de qualité

300

Forme

liquid (ready-to-use)

Caractéristiques

ready-to-use

Fabricant/nom de marque

ReadyTube®

Conditionnement

pkg of (225 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))

pH

7.2 ( in H2O)

Application(s)

environmental
food and beverages
microbiology

Température de stockage

2-8°C

Adéquation

selective for Listeria spp.

Catégories apparentées

Description générale

ReadyTube® is ready to use media to provide the highest level of quality and testing confidence for improving accuracy and significantly reducing the risk of false results. ReadyTube® Half Fraser broth is a selective enrichment medium designed to help recovery of Listeria sp.

Application

ReadyTube® Fraser broth is used for the primary and secondary selective enrichment of Listeria sp. from food and animal feed as well as from environmental samples and other materials.

Remarque sur l'analyse

This medium contains peptone, casein, yeast extract, and meat extract, which provide essential nutrients like carbon and nitrogenous compounds, including vitamins, amino acids, and trace ingredients. Phosphates buffer the medium while sodium chloride maintains osmotic equilibrium. Nalidixic acid and acriflavine inhibit the growth of Gram-negative and Gram-positive organisms respectively, except Listeria sp. Listeria sp. hydrolyze esculin to glucose and esculetin. The latter combines with ferric ions of ferric ammonium citrate, resulting in the formation of 6-7-Dihydroxycoumarin, a black-brown complex. Ferric ammonium citrate also enhances the growth of L. monocytogenes. The high salt tolerance (of sodium chloride) of Listeria is used as means to inhibit the growth of Enterococci. Lithium chloride is also used to inhibit Enterococci, which also possess the ability to hydrolyze esculin.

Informations légales

READYTUBE is a registered trademark of Merck KGaA, Darmstadt, Germany

Code de la classe de stockage

12 - Non Combustible Liquids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Certificats d'analyse (COA)

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Protocoles

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