MacConkey Sorbitol Agar Base 500G

MacConkey Sorbitol Agar Base is recommended as a selective medium for isolation and detection of Escherichia coli O157: H7 from food and animal feeding stuffs. The composition and performance criteria are in accordance with Draft: ISO/DIS 16654:2001. Enteropathogenic Escherichia coli O157: H7, ferments lactose but does not ferment sorbitol, hence produces colourless colonies on this medium and most of the faecal flora ferment sorbitol and appear pink.