Developed as a modification of UVM II medium, Fraser broth is a secondary enrichment broth for the isolation of Listeria spp., and is similar to Palcam broth in that it contains aesculin to indicate the presence of a potential Listeria isolate.

It also contains lithium chloride in an attempt to suppress the growth of enterococci in the medium (as does Palcam). Fraser broth may also be used as a primary enrichment
medium by incorporating 1/2 strength supplement into the broth base (X164 or X564).

Related Sector(s)

• Dairy
• Food

Related Organism(s)

• Listeria