Alkali Scientific MacConkey Broth 100mL Bottle, 1/Pk

Supplier:  Alkali Scientific MMAB00

MacConkey Broth is a selective and differential liquid medium used for the detection and enumeration of coliform bacteria, particularly Escherichia coli, in water, food, dairy, and pharmaceutical samples. Each sterile bottle contains 100 mL of broth typically formulated with bile salts that inhibit Gram positive organisms and support growth of Gram negative enteric bacteria. Lactose is included as the fermentable carbohydrate, while bromocresol purple functions as the pH indicator. When lactose fermenting coliforms grow in the broth they produce acid and often gas. Acid production causes the indicator to shift from purple to yellow, indicating a positive reaction. Absence of color change indicates no lactose fermentation and therefore no detectable coliform activity.

Catalog No. 50-006-62168