Bile esculin azide agar
SIAL/06105 - NutriSelect® Plus, suitable for microbiology
Synonym: Enterococcus Selective Agar
Product Type: Chemical
Selective medium used for isolation and presumptive identification of faecal Streptococci.
| application(s) | clinical testing environmental food and beverages water monitoring |
| microbiology | |
| composition | agar, 15.0 g/L |
| beef extract, 5.0 g/L | |
| casein enzymic hydrolysate, 17.0 g/L | |
| esculin, 1.0 g/L | |
| ferric ammonium citrate, 0.5 g/L | |
| oxgall, 10.0 g/L | |
| proteose peptone, 3.0 g/L | |
| sodium azide, 0.15 g/L | |
| sodium chloride, 5.0 g/L | |
| form | powder |
| manufacturer/tradename | NutriSelect® Plus |
| Quality Level | 200  |
| shelf life | limited shelf life, expiry date on the label |
| sterility | non-sterile |
| suitability | selective and differential for Enterococcus spp. |
| selective and differential for Streptococcus spp. | |
| technique(s) | microbe id | specific enzyme detection: suitable |
| Application: | Bile Esculin Azide Agar is a selective medium used for isolation and presumptive identification of faecal Streptococci. |
| Footnote: | 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. |
| General description: | 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. |
| Legal Information: | GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Legal Information: | NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany |
| Preparation Note: | Suspend 56.65g in 1 l distilled water. Heat to boiling to dissolve the medium completely. Sterilize by autoclaving at 121°C for 15 minutes. |
| Hazard statements | H412 |
| Precautionary statements | P273 - P501 |
| Hazard Codes | Xn |
| Risk Statements | 21/22-52/53 |
| Safety Statements | 36/37-61 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| UNSPSC | 41171606 |