XLT4 Agar (XLT4)
XLT Agar (Xylose Lysine Tergitol-4) Is a selective culture medium for the isolation and identification of Salmonella from food and environmental samples. 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-Salmonella. Successful growth of Salmonella will result in growth of red colonies with a black center.
Enzymatic Digest of Animal Tissue 4.6g
Sodium Chloride 5g
Yeast Extract 3g
Phenol Red 0.08g
Ferric Ammonium Citrate 0.8g
Sodium Thiosulfate 6.8g
Final pH: 7.4 ± 0.2 at 25°C
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