Difco Brain heart infusion, without dextrose, is an animal origin (AO) enzymatic digest of bovine and porcine animal proteins.

• Contains the same formulation as Bacto Brain heart infusion with no dextrose added
• Basal medium that is generally used with carbohydrates for fermentation studies
• Can be used in tests for the verification of fecal Streptococci

Listed by the National Committee for Clinical Laboratory Standards (NCCLS) as a medium for use in the preparation of microdilution trays for antimicrobial susceptibility testing by the broth microdilution procedure.

Difco Brain heart infusion, without dextrose, is a microbiological culture medium used for cultivating fastidious microorganisms, including Streptococci, Pneumococci, and Meningococci.