Coliform PA Broth 500G

Coliform PA Broth is recommended for the determination of presence or absence of coliforms during detection of pollution in treated water from treatment plants or distribution systems. This medium has Lactose as the fermentable carbohydrate. Bromocresol purple is the pH indicator. Sodium lauryl sulphate is inhibitory to many organisms other than coliforms. Coliforms that ferment lactose produce acid and gas, which is indicated by a change in colour. Escherichia coli and Enterobacter aerogenes ferment lactose and changes the colour of medium to yellow with gas production.