Experiments were undertaken to determine the survival of indicator and pathogenic bacteria in samples of a popular orange soft drink having pH 3.0 and held at 8°C. The fizzy orange drink was inoculated with c.106 cell ml–1of Escherichia coli (two strains, EAC1 and EAC75) and c.106 cell ml–1of Salmonella derby (two strains) and Listeria monocytogenes (one strain). None of the strains of S. derby and L. monocytogeneswas detected 35h after inoculation. Numbers of the E. coli decreased, reaching a final concentration of 1.1×102CFUml–1and 1.3×103CFUml–1for strain EAC1 and strain EAC75, respectively. These results indicate the safety of this type of soft drink with respect to these organisms.
Survival of indicator/pathogenic bacteria in orange soft drink
CARUSO, Marisa Carmela
1998-01-01
Abstract
Experiments were undertaken to determine the survival of indicator and pathogenic bacteria in samples of a popular orange soft drink having pH 3.0 and held at 8°C. The fizzy orange drink was inoculated with c.106 cell ml–1of Escherichia coli (two strains, EAC1 and EAC75) and c.106 cell ml–1of Salmonella derby (two strains) and Listeria monocytogenes (one strain). None of the strains of S. derby and L. monocytogeneswas detected 35h after inoculation. Numbers of the E. coli decreased, reaching a final concentration of 1.1×102CFUml–1and 1.3×103CFUml–1for strain EAC1 and strain EAC75, respectively. These results indicate the safety of this type of soft drink with respect to these organisms.| File | Dimensione | Formato | |
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