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You are here:Home » Culture Media » Media-Microbiological » Ethyl Violet Azide Broth (Powder)

Ethyl Violet Azide Broth (Powder)


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A selective confirmatory medium used to detect Enterococci in water.
Catalog #E8608
DescriptionThis medium is highly selective for enterococci due to the presence of sodium azide and ethyl violet, which inhibit Gram negative bacilli and Gram positive sporeformers. The medium contains a phosphate buffer system for pH control. Peptone, yeast extract and dextrose provide the nutrients that support the growth of enterococci.
StorageStore the sealed bottle containing the dehydrated medium at 2 to 30.0°C. Once opened and recapped, place the container in a low humidity environment at the same storage temperature. Protect it from moisture and light. The dehydrated medium should be discarded if it is not free flowing or if the color has changed from the original light beige color.
Light beige, homogeneous, free flowing powder.
Light to medium gold, clear, complete
pH (25°C)
Microbiological Analysis
Enterococcus faecalis ATCC 29212Growth
Escherichia coli ATCC 25922Inhibited
Streptococcus pyogenes ATCC 19615Inhibited
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.
Alternate namesEVA Broth

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