MacConkey Sorbitol Agar is an adaptation of the formulation that was described by Rappaport and Henigh. It is selective and differential media for the detection of sorbitol-nonfermenting Escherichia coli serotype O157:H7 associated with hemorrhagic colitis. E. coli serotype O157:H7 is a human pathogen that is associated with hemorrhagic colitis which is caused by the actions of a Shiga-like toxins (SLT).
MacConkey Agar is a selective and differentiated culture medium widely used to isolate of Gram-negative enteric bacteria.
It is selective since it allows for the growth of gram-negative bacteria , and differentiating the bacteria that are gram-negative based on their metabolic process of lactose.
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