Home > Catalogo generale > Culture media and ISO confirmation tests > BEA (Bile Esculin Azide) Agar – confirmatory medium for Enterococci enumeration acc. to ISO7899

BEA (Bile Esculin Azide) Agar – confirmatory medium for Enterococci enumeration acc. to ISO7899

  • Brand: Bio-Rad
  • Format: 20 x 90 mm Petri
  • Code: BR3563994
  • Technology: Culture media and ISO confirmation tests
  • Application: Food/Water microbiology
  • Tag/Filter: Microbiological indicators

BEA is an agar medium used for confirmation in the detection and enumeration of intestinal Enterococci (Lancefield group D) in water (membrane filtration technique) following colony isolation on Slanetz and Bartley agar according to ISO 7899-2. The principle of the confirmation relies on the ability of enterococci to hydrolyse esculin. The final product, dihydroxy-6,7-coumarin, combines with iron ions to produce a dark to black-colored compound. The combination of sodium azide and bovine bile present in this medium selectively inhibits other bacteria. Typical intestinal Enterococci colonies present brown to black coloring in the surrounding medium. BEA is available as ready-to-us plates or as dehydrated powder.


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BEA (Bile Esculin Azide) Agar – confirmatory medium for Enterococci enumeration acc. to ISO7899
  • Brand: Bio-Rad
  • Format: 20 x 90 mm Petri
  • Code: BR3563994
  • Technology: Culture media and ISO confirmation tests
  • Application: Food/Water microbiology
  • Tag/Filter: Microbiological indicators


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