Susceptibility of Listeria monocytogenes Biofilms and Planktonic Cultures to Hydrogen Peroxide in Food Processing Environments

DOI Web Site Web Site PubMed 被引用文献1件 参考文献46件
  • YUN Hyun Sun
    Division of Food Bioscience and Technology, Korea University Division of Food Bioscience and Technology, Korea University
  • KIM Younghoon
    Department of Animal Science, Institute of Rare Earth for Biological Application, Chonbuk National University Department of Animal Science, Institute of Rare Earth for Biological Application, Chonbuk National University
  • OH Sejong
    Division of Animal Science, Chonnam National University Division of Animal Science, Chonnam National University
  • JEON Woo Min
    Division of Animal Science, Samyook University Division of Animal Science, Samyook University
  • FRANK Joseph F.
    Department of Food Science and Technology, University of Georgia Department of Food Science and Technology, University of Georgia
  • KIM Sae Hun
    Division of Food Bioscience and Technology, Korea University Division of Food Bioscience and Technology, Korea University

書誌事項

タイトル別名
  • Susceptibility of <i>Listeria monocytogenes</i> Biofilms and Planktonic Cultures to Hydrogen Peroxide in Food Processing Environments

この論文をさがす

抄録

Recent studies have indicated that Listeria monocytogenes formed biofilms on the surface of food processing equipment, and may survive sanitization treatments. The purpose of this study was to compare the susceptibility of L. monocytogenes grown in either a biofilm or planktonic culture when exposed to hydrogen peroxide (H2O2). Twelve strains of biofilm-forming L. monocytogenes and their planktonic counterparts were treated with various concentrations of H2O2 (1, 6, and 10%), and the cell survival was then determined at 10-min exposure intervals. When grown as a biofilm, L. monocytogenes was significantly more resistant to H2O2 than under planktonic culture conditions. Planktonic L. monocytogenes strains exhibited significantly different susceptibility to 1% H2O2. Equally interestingly, biofilms of the 12 L. monocytogenes strains also inhibited different survival rates after being treated with 6 and 10% H2O2. However, most of the biofilms recovered to a population of 2–9 log CFU/glass fiber filter (GFF) after a 24-h re-growth period. These results indicate that there was no significant correlation between the H2O2 resistance of biofilm- and planktonic-cultured cells, and suggest that different mechanisms for the resistance to sanitation or disinfection underly the persistence of certain strains in food-processing environments.

収録刊行物

被引用文献 (1)*注記

もっと見る

参考文献 (46)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ