EMB Agar

Use: Eosin Methylene Blue Agar is used for the isolation and identification of Gram negative enteric bacteria.

Description: EMB Agar was first developed by Holt-Harris and Teague. This formula contains both lactose and sucrose with the two indicator dyes, eosin Y and methylene blue. Escherichia and Enterobacter species can be easily distinguished from other Gram negative enteric bacilli using this medium. EMB Agar contains two mildly selective dyes, eosin Y and methylene blue, which interact under strong acidic conditions to impart metallic sheen to Escherichia coli colonies. In addition, E coli produces dark blue-black colonies. Other coliforms produce mucoid, pinkish brown colonies. Non-lactose fermenting bacteria Salmonella and Shigella, produce translucent or colorless colonies. Acinetobacter, Aeromonas, Pseudomonas, Plesiomonas and Yersinia also grow on this medium. Gram-positive bacteria are inhibited by eosin Y. The slow lactose fermenters also ferment sucrose, which reduces the incidence of false-positive interpretations.

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Product #: CD134D
Description: 100g Bottle EMB Agar
Price: $24.00


Product #: CD134E
Description: 500g Bottle EMB Agar
Price: $115.00

Prepared Plastic Bottles:


Product #: CM134-PB125
Description: 125ml in 8oz Plastic Bottle, Case of 24
Price: $100.00

Prepared Jars:


Product #: CM134-B100W
Description: 100ml in 8oz Jar, Case of 12
Price: $51.00

Prepared Plates:


Product #: CM134-P25
Description: 25ml in 100x15mm Standard Plate, Pack of 10
Price: $14.50