Successful growth of Salmonella will result in growth of red colonies with a black centre .
It is similar to XLD agar however the agar is supplemented with the surfactant , Tergitol 4 , which causes inhibition of Proteus spp. and other non-Salmonellae .
Successful growth of non-Salmonellae will result in growth of red colonies with a black centre .
It is similar to XLD agar however the agar is supplemented with the surfactant , Tergitol 4 , which causes inhibition of Proteus spp. and other non-Salmonellae .