推荐产品
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
法规信息
新产品
商品
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.
实验方案
Listeria is a public health concern, affecting elderly, pregnant, newborns, and immunocompromised individuals.
近年来,李斯特菌病被定为重大的公共健康问题。这种病的主要感染对象是老年人、孕妇、新生儿和免疫功能低下者。
我们的科学家团队拥有各种研究领域经验,包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.
联系技术服务部门