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Tolerance of Clostridium perfringens biofilms to disinfectants commonly used in the food industry

机译：产气荚膜梭菌生物膜对食品工业常用消毒剂的耐受性

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摘要

Clostridium perfringens is an opportunistic pathogen that can cause food poisoning in humans and various enterotoxemia in animal species. Recently, it was shown to form mono-species biofilms, a structured community of bacterial cells enclosed in a self-produced extracellular matrix. Biofilms have been associated with tolerance to antibiotics, disinfectants, and physical and environmental stresses. Very little is known about the tolerance of C. perfringens biofilm toward disinfectants. In the present study, susceptibilities of C. perfringens biofilms to five types of commonly used disinfectants on farms and in food processing environments were analysed. In this paper, we show that C. perfringens mono-species biofilms can protect the bacterial cells from the action of potassium monopersulfate, quaternary ammonium chloride, hydrogen peroxide and glutaraldehyde solutions. However, sodium hypochlorite solution was shown to be effective on C. perfringens biofilms. Our investigation of dual-species biofilms of C. perfringens with the addition of Staphylococcus aureus or Escherichia coli demonstrated that overall, the mono-species biofilm of C. perfringens was more tolerant to all disinfectants than the dual-species biofilms. For the anaerobic grown biofilms, the mono-species biofilm of C. perfringens was more tolerant to sodium hypochlorite and quaternary ammonium chloride than the dual-species biofilms of C. perfringens with S. aureus or E. coli. This study demonstrates that C. perfringens biofilm is an effective protection mechanism to disinfectants commonly used on farms and in food processing environments.
机译：产气荚膜梭状芽胞杆菌是一种机会病原体，可导致人类食物中毒和动物物种各种肠毒素血症。最近，它被证明会形成单物种生物膜，这是一种细菌细胞的结构化群落，被封闭在自我产生的细胞外基质中。生物膜与抗生素，消毒剂以及物理和环境压力的耐受性有关。关于产气荚膜梭菌生物膜对消毒剂的耐受性知之甚少。在本研究中，分析了产气荚膜梭菌生物膜对农场和食品加工环境中五种常用消毒剂的敏感性。在本文中，我们表明产气荚膜梭菌单种生物膜可以保护细菌细胞免受单过硫酸钾，氯化季铵，过氧化氢和戊二醛溶液的作用。但是，次氯酸钠溶液显示对产气荚膜梭菌生物膜有效。我们对产气荚膜梭菌的双物种生物膜加金黄色葡萄球菌或大肠杆菌的调查表明，总体而言，产气荚膜梭菌的单物种生物膜比双物种生物膜对所有消毒剂的耐受性更高。对于厌氧菌生长的生物膜，产气荚膜梭菌的单物种生物膜比带有金黄色葡萄球菌或大肠杆菌的产气荚膜梭菌的双物种生物膜更耐次氯酸钠和氯化铵。这项研究表明，产气荚膜梭菌生物膜是对农场和食品加工环境中常用消毒剂的有效保护机制。

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  • 来源
    《Food microbiology》 |2017年第4期|32-38|共7页
  • 作者

    Audrey Charlebois; Mario Jacques; Martine Boulianne; Marie Archambault;

  • 作者单位

    Faculte de Medecine Veterinaire, Departement de Pathologie et Microbiologie, Centre de Recherche en Infectiologie Porcine et Aviaire (CRIPA), Universite de Montreal, Saint-Hyacinthe, Canada;

    Faculte de Medecine Veterinaire, Departement de Pathologie et Microbiologie, Centre de Recherche en Infectiologie Porcine et Aviaire (CRIPA), Universite de Montreal, Saint-Hyacinthe, Canada;

    Faculte de Medecine Veterinaire, Departement de Pathologie et Microbiologie, Centre de Recherche en Infectiologie Porcine et Aviaire (CRIPA), Universite de Montreal, Saint-Hyacinthe, Canada;

    Faculte de Medecine Veterinaire, Departement de Pathologie et Microbiologie, Centre de Recherche en Infectiologie Porcine et Aviaire (CRIPA), Universite de Montreal, Saint-Hyacinthe, Canada;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Clostridium perfringens; Biofilms; Disinfectants; Food microbiology;

    机译：产气荚膜梭菌;生物膜;消毒剂;食品微生物学;

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