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Eosin Methylene Blue (EMB) agar is a selective and differential culture medium. It selectively promotes the growth of Gram-negative bacteria and aids in the differentiation of lactose fermenter and non-lactose fermenting colonies. EMB Agar is used for the isolation of fecal coliforms.
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4 Ιαν 2022 · Eosin Methylene Blue (EMB) agar is a differential microbiological medium, which slightly inhibits the growth of Gram-positive bacteria and provides a color indicator distinguishing between organisms that ferment lactose (e.g., E. coli) and those that do not (e.g., Salmonella, Shigella).
Record the results and interpretations from the EMB plates in the table above. What types of bacterial species is EMB used to identify? How is EMB a selective medium? How is EMB a differential medium? Define coliform. Explain the roles of the dyes in EMB (there are two). Explain the role of lactose in EMB.
EMB agar is used in water quality tests to distinguish coliforms and fecal coliforms that signal possible pathogenic microorganism contamination in water samples.
1 Σεπ 2007 · EMB agar is used in water quality tests to distinguish coliforms and fecal coliforms that signal possible pathogenic microorganism contamination in water samples.
7 Μαρ 2022 · The eosin methylene blue agar (EMB agar) is a selective staining for gram-negative bacteria. It contains two dyes in the ratio of 6:1 and is both toxic to gram-positive microorganisms. It is both a selective and differential mediums for coliforms.
