FIG. 2.

Agarose gel electrophoresis of the PCR-amplified DNA extracted from the homogenates of 10 different naturally contaminated ciauscolo, incubated for 6 h at 37°C in BPW. Lanes: 1, PCR negative control; 2, DNA Molecular Weight Marker VI (Roche); 3 to 12, ciauscolo homogenates 1 to 10, respectively; 13, pure culture of S. enterica serovar Enteritidis (positive control). The data shown are representative of three independent experiments.