M-FC Broth with Rosolic Acid

M-FC with Rosolic Acid acts and functions in the same way as M-FC Broth (which allows the
development of fecal coliforms at elevated 44.5°C temperature). Rosolic acid inhibits bacterial
growth in general, except for fecal coliforms. Bile salts inhibit non-enteric bacteria. Aniline blue
indicates the ability of fecal coliforms to ferment lactose to acid by-products that causes a pH drop
in the medium. Other organisms form grey to cream colonies