Agar medium intended for the isolation and detection of Escherichia coli 0157 H7.
Escherichia coli serotype 0157:H7 was implicated in causing hemorrhagic colitis. Farmer and Davis noted that 95% of E. coli strains ferment sorbitol while almost all strains of E coli 0157:H7 did not ferment sorbitol They used this medium in their studies to estimate the number of sorbitol-negative E. coli present in stool specimens. Sorbitol fermenting bacteria appear as reddish-pink colonies and non-sorbitol fermenting bacteria appear as colorless or transparent colonies.
Appearance:
Light pinkish-beige, homogeneous, free-flowing powder.
pH:
7.1
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