Uses of MacConkey Agar
- MacConkey agar is used for the isolation of gram-negative enteric bacteria.
- It is used in the differentiation of lactose fermenting from lactose non-fermenting gram-negative bacteria.
- It is used for the isolation of coliforms and intestinal pathogens in water, dairy products and biological specimens.
Typical Formula* gm/litre
Peptone 20.0
Lactose 10.0
Bile salts 5.0
Sodium chloride 5.0
Neutral red 0.075
Agar 12.0
pH 7.4 ± 0.2