MacConkey Broth 500g Himedia

MacConkey Broth is a selective and differential culture medium used for the detection and cultivation of coliform bacteria, particularly members of the Enterobacteriaceae family, in water, food, dairy products, and clinical samples. The medium contains bile salts and lactose, which inhibit Gram-positive organisms and differentiate lactose-fermenting bacteria from non-lactose fermenters.

Lactose-fermenting organisms such as Escherichia coli produce acid, causing a color change in the pH indicator and gas production in Durham tubes. This medium is widely used in microbiological quality control and water testing laboratories for presumptive coliform testing.