An official website of the United States government Here’s how you know

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

On Oct. 1, 2024, the FDA began implementing a reorganization impacting many parts of the agency. We are in the process of updating FDA.gov content to reflect these changes.

In this section: Laboratory Methods (Food)

BAM Media M27: Bromcresol Purple Dextrose Broth (BCP)

Media Index for BAM

January 2001

Formalinized Physiological Saline Solution

Dextrose	10 g
Beef extract	3 g
Peptone	5 g
Bromcresol purple (1.6% in ethanol)	2 ml
Distilled water	1 liter

Dissolve ingredients in distilled water. Dispense 12-15 ml into tubes. Autoclave 15 min at 121°C. Final pH, 7.0 ± 0.2.

Original Source: Bacteriological Analytical Manual, 8th Edition, Revision A, 1998.

Top