MacConkey Agar is used for isolation , identification and enumeration of lactose fermenting and lactose non-fermenting enteric bacteria.It is recommended by BIS committee under the specifications IS:5887(Part I and Part II) -1976.
Composition**
Ingredients Gms / Litre
Peptic digest of animal tissue 20.000
Lactose 10.000
Bile salts 5.000
Sodium chloride 5.000
Neutral red 0.070
Agar 15.000
Final pH ( at 25°C) 7.5±0.2
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