Table 2. Inclusivity and exclusivity as confirmation of E. sakazakii (Cronobacter spp.)
Strain tested in study | Confirmation method |
DFI1) | Nutrient agar | Rapid ID 32E | Real-Time PCR |
Pantoea agglomerase | Yellow | Yellow | Non-E.sakazakii | Negative |
Salmonella | Enteritidis 18088 | Black | Yellow | Non-E.sakazakii | Negative |
Enteritidis 18673 | Black | Yellow | Non-E.sakazakii | Negative |
Typhimurium LT2 | Black | Yellow | Non-E.sakazakii | Negative |
Enterbacter | gergorivae | Yellow | Yellow | Non-E.sakazakii | Negative |
dissolvens E10 | Yellow | Yellow | Non-E.sakazkaii | Negative |
helveticus E912 | Green | Yellow | Non-E.sakazakii | Negative |
helveticus E440 | Weak green | Yellow | Non-E.sakazakii | Negative |
vulneris | Green | Yellow | Non-E.sakazakii | Negative |
sakazkaii N6 | Green | Yellow | E. sakazkaii | True positive |
sakazkaii 626 | Weak green | Yellow | E. sakazakii | True positive |
Druggan-Forsythe-Iversen (DFI, Oxoid) as chromogenic agar was first developed for the purpose of detecting E. sakazakii (Cronobacter spp.) which was shown green colony color on DFI.