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Bile esculin agar : ウィキペディア英語版 | Bile esculin agar
Bile Esculin Agar (BEA) is a selective differential agar used to isolate and identify members of the genus ''Enterococcus'', also known as "group D streptococci". ==Composition and process==
Bile salts are the selective ingredient, while esculin is the differential component. ''Enterococcus'' hydrolyze esculin to products that react with ferric citrate in the medium to produce insoluble iron salts, resulting in the blackening of the medium. Test results must be interpreted in conjunction with gram stain morphology.
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