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Mitis Salivarius Agar (M13-117) - BiochromCorp

Mitis Salivarius Agar (M13-117)

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Catalog Number: M13-117-500
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Mitis Salivarius Agar
Mitis Salivarius Agar is a solid medium used for the selective isolation of Streptococcus mitis, Streptococcus salivarius, and Enterococci from heavily contaminated specimens. Enzymatic Digest of Casein and Peptic Digest of Animal Tissue provide nitrogenous sources. Dextrose and Sucrose are the fermentable carbohydrates. S. salivarius metabolizes Sucrose and forms big colonies with a “gum-drop” appearance, while S. mitis and Enterococci do not ferment this sugar and form smaller colonies. Trypan Blue and Crystal Violet are selective agents that inhibit the growth of most Gram-negative and Gram-positive microorganisms. The former is absorbed by Streptococci, resulting in the formation of blue colonies. Dipotassium Phosphate serves as pH buffer. Agar is the gelifying agent.


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