Lactose Broth is frequently used as a pre-enrichment medium when testing foods and dairy products for Salmonella spp.
In dried or processed foods, Salmonella species may be sublethally injured and in low numbers. The presence of other
bacteria as well as components of the food sample may hinder growth and recovery of Salmonella. Pre-enrichment in a
nonselective medium such as Lactose Broth allows for repair of cell damage, dilutes toxic or inhibitory substances, and
provides a nutritional advantage to Salmonella over other bacteria.1 Lactose Broth is widely used and is included in many
procedures for testing foods, dairy products and other materials.