XLD Agar is a selective differential medium for the isolation of Gram-negative enteric pathogens from fecal specimens and other clinical material. It is especially suitable for the isolation of Shigella and Salmonella species. Microbiological testing of foods, water and dairy products.

What bacteria can grow on XLD?

OrganismsColony characteristicsShigella spp. and Salmonella H2S negativeRed coloniesE.coliLarge, flat, yellow coloniesProteus spp.Red to Yellow coloniesEnterobacter / KlebsiellaMucoid, yellow colonies

Does E coli grow on XLD agar?

Primarily the usage of XLD agar is for the detection of Salmonella species in food analysis. Some sources say that e. coli also can be detected by the presence of yellow colonies. Theoretically yellow colonies observed for the presence of other Enterobacteria which maybe also coliforms.