Brilliant Green Bile Lactose Broth (BGBL)
The main use of this medium is to verify the presence of coliforms in foods. During incubation for 24 hours at 37°C coliforms will ferment the lactose in the broth with production of gas. This gas is collected in an inverted Durham tube. 1. Uninoculated medium. 2. Positive reaction: Escherichia coli. 3. Negative reaction.
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