1.46476

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))

• Synonym(e): Fraser Broth
• UNSPSC-Code: 41106212
• NACRES: NA.74

Eigenschaften

• Agentur: ISO 11190
• Qualitätsniveau: 300
• Form: liquid (ready-to-use)
• Leistungsmerkmale: ready-to-use
• Hersteller/Markenname: ReadyTube^®
• Verpackung: pkg of (225 mL in 250 mL bottle with blue screw cap and 3 loci (6 bottles per box))
• pH-Wert: 7.2 ( in H₂O)
• Anwendung(en): environmental; food and beverages; microbiology
• Lagertemp.: 2-8°C
• Eignung: selective for Listeria spp.

Beschreibung

Allgemeine Beschreibung

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.

Anwendung

Application: Pre-enrichment of Listeria

Packaging: 225 ml in 250 ml bottle with blue screw cap and 3 loci (6 bottles per box)

Synonym: Fraser Broth, Fraser Listeria selective enrichment Broth

Hinweis zur 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.

Rechtliche Hinweise

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

Sicherheitshinweise

• Lagerklassenschlüssel: 12 - Non Combustible Liquids
• WGK: WGK 2
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable