This is a selective medium primarily for the isolation and differentiation of coliforms and non-lactose fermenting Gram –ve bacterial species from clinical, dairy, industrial and water samples. This media differs from the original MacConkey formulation with the addition of an extra 0.5% Sodium chloride, an altered Bile salt mix and the neutral red concentration was also modified. This enhanced the effect of inhibiting Gram +ve and other non-enteric bacterial species. This medium conforms to the requirements of the Harmonised USP/EP/JP.
MacConkey Agar (USP)
Additional Information
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| Recommended Incubation | Aerobically using Harmonised USP/EP/JP specified temperaatures and incubation times |
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Product Description
| Organisms | Ref. No | Result |
| Escherichia coli | ATCC 8739 | Pink/red colonies with bile precipitate |
| Salmonella typhimurium | ATCC 14028 | Pale yellow colonies |
| Staphylococcus aureus | ATCC 6538 | Inhibited |
