1.01865
Readybag® Half Fraser Broth with Supplements
acc. ISO 11290, 62 g, irradiated, For the primary selective enrichment of Listeria sp.
别名:
Demi Fraser broth, Fraser broth primary enrichment, Fraser Broth, Fraser Listeria selective enrichment Broth
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About This Item
UNSPSC代码:
41106212
NACRES:
NA.74
Agency
APHA
ISO 11133
ISO 11290
质量水平
表单
medium granules (dehydrated (DCM))
制造商/商品名称
ReadyBag®
技术
microbiological culture: suitable
pH值（酸碱度）
7.0-7.4 (25 °C, 55 g/L in H2O)
溶解性
55 g/L
应用
food and beverages
microbiology
pathogen testing
储存温度
15-25°C
适用性
Listeria spp.
一般描述
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.
应用
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.
法律信息
READYBAG is a registered trademark of Merck KGaA, Darmstadt, Germany
储存分类代码
11 - Combustible Solids
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
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