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Bile esculin agar

胆汁七叶苷琼脂

品牌
Millipore
货号
48300
规格纯度
suitable for microbiology, NutriSelect® Plus
参考价格
2798.67 *本价格含增值税费
促销
数量
-+
产品介绍:

产品说明

应用

Bile esculin agar (BEA) is a differential and selective medium and is mainly used to discern group D Streptococci and Enterococci based on the organism′s potential to hydrolyze esculin. BEA comprises of oxygall (bile salts, first selective ingredients) and azide (second selective ingredients), former inhibits the growth of gram positive organisms and latter inhibits the growth of gram negative organisms. BEA also comprises of nutrients ferric citrate and esculin, where esculin is a differential ingredient and is also a fluorescent compound, upon hydrolyzation the fluorescence is lost. BEA is used for bile esculin test which is based on the hydrolysis of esculin into esculetin (6, 7-dihydroxy-coumarin) and glucose by a micro-organism that produce an enzyme esculinase.
For the preliminary identification of enterococci (serology group D), as defined by Swan (1954) and Facklam and Moody (1970).

制备说明

Dissolve 64.5 g in 1 litre distilled water. Bring to a boil while stirring continually. This medium should NOT be autoclaved. Cool to 45-50℃. Mix gently and dispense into sterile Petri dishes.

附注

We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

法律信息

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

基本信息

NACRESNA.74

产品性质

质量水平200
agencyaccording to ISO 10273:2017
无菌性non-sterile
产品线BioChemika
形式powder
保质期limited shelf life, expiry date on the label
组成agar, 15.0 g/L
esculin, 1 g/L
ferric citrate, 0.5 g/L
meat extract, 3 g/L
meat peptone, 5 g/L
ox-bile, 40 g/L
manufacturer/tradenameNutriSelect® Plus
technique(s)microbe id | specific enzyme detection: suitable
最终pH6.6±0.2 (25 ℃)
application(s)environmental
food and beverages
water monitoring
microbiology
适用性Streptococcus spp.
selective and differential for Enterococcus spp.

安全信息

储存分类代码11 - Combustible Solids
WGKWGK 3
闪点(F)Not applicable
闪点(C)Not applicable

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