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Millipore

Readybag® Half Fraser Broth with Supplements

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

Synonym(e):

Demi Fraser broth, Fraser broth primary enrichment, Fraser Broth, Fraser Listeria selective enrichment Broth

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About This Item

UNSPSC-Code:
41106212
NACRES:
NA.74

Agentur

APHA
ISO 11133
ISO 11290

Qualitätsniveau

200

Form

medium granules (dehydrated (DCM))

Hersteller/Markenname

ReadyBag®

Methode(n)

microbiological culture: suitable

pH-Wert

7.0-7.4 (25 °C, 55 g/L in H2O)

Löslichkeit

55 g/L

Anwendung(en)

food and beverages
microbiology
pathogen testing

Lagertemp.

15-25°C

Eignung

Listeria spp.

Allgemeine Beschreibung

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.

Anwendung

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.

Rechtliche Hinweise

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

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 3

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Analysenzertifikate (COA)

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Artikel

Types of Media in Microbiology

The different types of culture media, that are used to grow microorganisms in the laboratory for quality control, are classified by several criteria, such as consistency, composition, or selectivity.

Protokolle

Listeria: a Survivor

In recent years it has been recognized that Listeria is an important public health problem. The disease affects primarily people of advanced age, pregnant women, newborns, and adults with weakened immune systems.

Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..

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