A selective enumeration medium for bifidobacteria in fermented dairy products
- PMID: 8598396
- DOI: 10.3168/jds.S0022-0302(95)76837-0
A selective enumeration medium for bifidobacteria in fermented dairy products
Abstract
A selective medium, blood-glucose-liver agar containing oxgall (.2 mg/ml) and gentamicin (30 micrograms/ml), was formulated for the selective enumeration of bifidobacteria in fermented dairy products containing both lactobacilli and streptococci. Recovery rates of bifidobacteria on this selective medium were around 90% of recovery on blood-glucose-liver agar. Strains of lactobacilli and streptococci were mostly inhibited with higher dilutions on this selective medium.