General Information: Propionibacterium freudenreichii is a member of the "dairy propionibacteria", commonly isolated from cheese and other dairy products. Propionibacterium freudenreichii subsp. shermanii, formerly Propionibacterium shermanii, is important for the development of flavor and the characteristic holes in Swiss cheese. In addition, Propionibacterium freudenreichii subsp. shermanii has been used as a probiotic for humans and animals and may have a role in preventing of colon cancer.