Bromo Cresol Purple Broth w/ Lactose is recommended for identification of Escherichia coli and coliform bacteria from water samples. This medium is used for enrichment and determining the titre of coliforms in the bacteriological analysis of drinking water. This medium has Lactose which upon fermentation by coliforms produce acid and changes color of the medium to yellow due to the presence of pH indicator bromo cresol purple.
Application: Used For Identification of Escherichia Coli & Coliform Bacteria From Water
- Appearance: Cream to yellow homogeneous free flowing powder
- Color and Clarity of prepared medium: Purple colored clear solution without any precipitate
- Reaction of 2.8% w/v aqueous solution at 25°C. pH : 7.2±0.2
- Cultural characteristics observed after an incubation at 35-37°C for 18- 24 hours