what is bifidobacterium
Bifidobacterium is a genus of Gram-positive, nonmotile, often branched anaerobic bacteria. They are ubiquitous, endosymbiotic inhabitants of the gastrointestinal tract, vagina and mouth (B. dentium) of mammals, including humans.he primary factor responsible for aerobic growth inhibition is proposed to be the production of hydrogen peroxide (H 2 O 2) in the growth medium. A H 2 O 2 -forming NADH oxidase was purified from O 2 -sensitive Bifidobacterium bifidum and was identified as a b-type dihydroorotate dehydrogenase.