推荐：胆汁七叶苷琼脂@2024已更新

别名:B.B.E. 琼脂, 七叶苷胆汁琼脂, 类杆菌胆汁七叶苷琼脂

NACRES:NA.74

属性
Agency
according to ISO 10273:2017

质量水平
200

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/tradename
NutriSelect® Plus

technique(s)
microbe id | specific enzyme detection: suitable

终pH
6.6±0.2 (25 °C)

application(s)
environmental
food ａnd beverages
water monitoring
microbiology

适用性
Streptococcus spp.
selective ａnd differential for Enterococcus spp.

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.[1][2]
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°C. 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.

IF<5，赠送价值 500元礼品卡
5 ≤IF≤10，赠送价值 1000元礼品卡
IF≥10，赠送价值 1000元礼品卡+任意 1 款 ValukineTM 试剂盒


DUMABIO ELISA试剂盒文献征集奖励活动

为感谢各位老师对笃玛品牌的支持与厚爱，凡购买DUMABIO ELISA试剂盒，在SCI期刊杂志发表文中注明ELISA试剂盒采购上海笃玛生物科技有限公司（Shanghai DuMa Biotechnology Co., Ltd.）

Shanghai DuMa Biotechnology Co., Ltd. 

发表刊物        影响因子           奖励金额
SCI期刊杂志      1.0≤1F＜3.0          200元
SCI期刊杂志      3.0≤1F＜6.0          400元
SCI期刊杂志      6.0≤1F＜10.0         600元
SCI期刊杂志      1F≥10                1000元