Abstract

the objective of this study was to investigate Escherichia coli adhesion on new and used polyethylene cutting board surface and evaluate it’s removal using different sanitizer (peracetic acid, chlorhexidine, sodium hypochlorite and organic acids). results indicated that the number of adherent cells increased with time in both surfaces evaluated. Evaluating the sanitizer action, 0.5% peracetic acid was more effective in removal E. coli than chlorhexidine and organic acids at same concentration in both surfaces. Peracetic acid and sodium hypochlorite also showed effectiveness at concentrations of 0.2% and 0.5% on new surfaces, respectively. 0.8% of chlorhexidine and 2.0% of organic acids showed similar effectiveness in the removal E. coli on new and used surfaces, respectively. these results suggest that peracetic acid is considerable promise sanitizer for application in surfaces of the food processing industry.

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