1.01865

Readybag^® Half Fraser Broth with Supplements

acc. ISO 11290, 62 g, irradiated, For the primary selective enrichment of Listeria sp.

• Sinónimos: Demi Fraser broth, Fraser broth primary enrichment, Fraser Broth, Fraser Listeria selective enrichment Broth
• Código UNSPSC: 41106212
• NACRES: NA.74

Propiedades

• Agency: APHA; ISO 11133; ISO 11290
• Nivel de calidad: 200
• Formulario: medium granules (dehydrated (DCM))
• fabricante / nombre comercial: ReadyBag^®
• técnicas: microbiological culture: suitable
• pH: 7.0-7.4 (25 °C, 55 g/L in H₂O)
• solubilidad: 55 g/L
• aplicaciones: food and beverages; microbiology; pathogen testing
• temp. de almacenamiento: 15-25°C
• idoneidad: Listeria spp.

Descripción

Descripción general

Half FRASER (Demi FRASER) broth has high nutrient content and the large buffer capacity that creates optimum growth conditions for Listeria. Lithium chloride, nalidixic acid, and acriflavine hydrochloride largely inhibit the growth of accompanying bacteria. Esculin and ammonium iron (III) citrate enables the detection of the β-D-glucosidase activity by the formation of a black complex of esculetin with iron (III) ions. However, this reaction is not exclusive to Listeria sp. and hence every primary and secondary enrichment in FRASER broth has to be sub-cultured on selective plating media.

Aplicación

Half FRASER (Demi FRASER) broth with supplements is used for the primary selective enrichment of Listeria sp. from food and animal feed as well as from environmental samples and other materials.

Información legal

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

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids
• Clase de riesgo para el agua (WGK): WGK 3
• Punto de inflamabilidad (°F): Not applicable
• Punto de inflamabilidad (°C): Not applicable