Efficacy of Two Acidic Sanitizers for Microbial Reduction on Metal Cans and Low-Density Polyethylene Film Surfaces

• Published in: Journal of food science 2007-10, Vol.72 (8), p.M335-M339
• Main Authors: Lee, J, Gupta, M.J, Lopes, J, Pascall, M.A
• Format: Article
• Language: English
• Subjects: acid treatment; acidic sanitizers; Benzenesulfonates - pharmacology; benzoic acid; Benzoic Acid - pharmacology; Biological and medical sciences; cans; citric acid; Citric Acid - pharmacology; Colony Count, Microbial; Consumer Product Safety; Dose-Response Relationship, Drug; E coli; E. coli, hydrogen peroxide; Effectiveness; Escherichia coli; Escherichia coli - drug effects; Escherichia coli - growth & development; Food Contamination - analysis; Food Contamination - prevention & control; Food industries; Food Packaging - methods; Food Preservation - methods; Fundamental and applied biological sciences. Psychology; General aspects; Handling, storage, packaging, transport; Humans; hydrogen peroxide; Hydrogen Peroxide - pharmacology; L. innocua; L. innocua, packaging materials; Lactic Acid - pharmacology; Listeria - drug effects; Listeria - growth & development; Listeria innocua; Low density polyethylenes; low-density polyethylene film; metals; microbial colonization; microbial detection; Microbial Sensitivity Tests; packaging materials; Phosphoric Acids - pharmacology; plastic film; Polyethylene; Polyethylene films; S. cerevisiae; Saccharomyces cerevisiae; Saccharomyces cerevisiae - drug effects; Saccharomyces cerevisiae - growth & development; Sanitation; Sanitation - methods; sanitizers; sodium dodecylbenzene sulfonate; Studies; Temperature; Time Factors
• ISSN: 0022-1147; 1750-3841
• DOI: 10.1111/j.1750-3841.2007.00496.x

This study investigated 2 sanitizer formulations and compared them with hydrogen peroxide (H₂O₂). Formulation number 1 contained citric acid and sodium dodecylbenzene sulfonate (SDBS). Formulation number 2 contained SDBS, citric, lactic, phosphoric acids, and benzoic acid. Low concentration levels of the sanitizers (1.0% for formulation 1 and 0.5% for formulation 2) were compared with 35% H₂O₂ for their efficacies on Escherichia coli, Listeria innocua, and Saccharomyces cerevisiae inoculated onto low-density polyethylene (LDPE) films and metal cans at room temperature (23 ± 1 °C) and 40 °C. The results showed that both formulations 1 and 2 required >120 s to sanitize both materials from microbial populations at room temperature, while