The presumptive identification of Cronobacter spp. isolates, obtained
from 2 samples, was evaluated through the amplification of
the gene putatively encoding the a-glucosidase (gluA), according to
Lehner et al. (2006). The primers were: EsAgf: 50-TGA AAG CAA TCG
ACA AGA AG-30 and EsAgr: 50-ACT CAT TAC CCC TCC TGA TG-30 .
Thermal cycling was carried out by using an initial denaturation
step of 94 C for 2 min, followed by 29 cycles of denaturation at
94 C for 30 s, annealing at 58 C for 60 s and extension at 72 C for
90 s. Cycling was completed by an elongation step at 72 C for
5 min. The amplification product generated has 1680 bp.