• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Food Microbiology >Attachment of Salmonella spp. and Listeria monocytogenes to stainlesssteel, rubber and polytetrafluorethylene: the influence of free energy andthe effect of commercial sanitizers
【24h】

Attachment of Salmonella spp. and Listeria monocytogenes to stainlesssteel, rubber and polytetrafluorethylene: the influence of free energy andthe effect of commercial sanitizers

机译：Attachment of Salmonella spp. and Listeria monocytogenes to stainlesssteel, rubber and polytetrafluorethylene: the influence of free energy andthe effect of commercial sanitizers

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相关主题

摘要

Bacteria and material surfaces were characterized with respect to their hydrophobicity and surface free energy using the contact angle method. Salmonella strains showed higher hydrophobicity and lower surface free energies than Listeria monocytogenes strains. Polytetrafluorethylene was the most hydrophobic material (and had the lowest surface free energy), followed by rubber and stainless steel Bacteria attached in higher numbers to the more hydrophobic materials. Bacterial adherence could not be correlated with surface free energies or contact angles of bacteria, although L. monocytogenes strains attached in higher numbers than Salmonella strains to all of the materials tested. The cleaning of materials with commercial sanitizers resulted in a decrease of their contact angles (and an increase of Their surface free energies), accompanied by a reduction in the number of adhered bacteria in comparison with the standard conditions. The degree of reduction in bacterial adherence varied with the bacteria, the substrate material and the sanitizer tested. Quaternary ammonium compounds were more effective against Salmonella attachment than L. monocytogenes attachment. Diethylenetriamine showed similar efficacy against attachment of both bacteria. Polytetrafluorethylene showed the greatest reduction in attachment after being washed with commercial sanitizers. it is concluded that stainless steel is less adherent than rubber or polytetrafluorethylene and should be preferred in the food industry when possible. On the other hand, polytetrafluorethylene seems to be more easily sanitized. Since effectiveness of sanitizers in the reduction of bacteria/adherence was dependent upon the bacteria and the materials studied, the use of mixtures of sanitizers would help to food industry. control bacterial adherence in the (C) 2000 Academic Press.

著录项

获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号