This medium is used as an enrichment medium for isolation of Salmonellae from water samples. A primary plating medium for isolation of Salmonella species first described by Kristensen et al and further modified by Kauffmann, and recommended by APHA, FDA and USP. These media contain brilliant green which inhibits growth of majority of gram-negative and gram-positive bacteria. Being highly selective, it is recommended that this medium should be used along with a less inhibitory medium to increase the chances of recovery.