48300
胆汁七叶苷琼脂
NutriSelect® Plus, according to ISO 10273, powder, selective for Enterococcus spp., pack of 500 g
别名:
B.B.E. 琼脂, 七叶苷胆汁琼脂, 类杆菌胆汁七叶苷琼脂
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NACRES:
NA.74
UNSPSC Code:
41171606
Manufacturer/tradename:
NutriSelect® Plus
Agency:
according to ISO 10273
Form:
powder
Suitability:
Streptococcus spp., selective for Enterococcus spp.
Application(s):
environmental
food and beverages
microbiology
water monitoring
food and beverages
microbiology
water monitoring
Quality Segment
agency
according to ISO 10273
sterility
non-sterile
product line
BioChemika
form
powder
shelf life
limited shelf life, expiry date on the label
composition
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
packaging
pack of 500 g
manufacturer/tradename
NutriSelect® Plus
technique(s)
microbe id | specific enzyme detection: suitable
final pH
6.6±0.2 (25 °C)
application(s)
environmental
food and beverages
microbiology
water monitoring
suitability
Streptococcus spp., selective for Enterococcus spp.
Application
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).
Preparation Note
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.
Other Notes
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.
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.
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
存储类别
11 - Combustible Solids
怎么回事？
WGK 3
闪点 (F)
Not applicable
闪点 (°C)
Not applicable