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  • 标题:Effect of different conditions on Listeria monocytogenes biofilm formation and removal
  • 本地全文:下载
  • 作者:Pasquale Russo ; Agni Hadjilouka ; Luciano Beneduce
  • 期刊名称:Czech Journal of Food Sciences
  • 印刷版ISSN:1212-1800
  • 电子版ISSN:1805-9317
  • 出版年度:2018
  • 卷号:36
  • 期号:3
  • 页码:208-214
  • DOI:10.17221/199/2017-CJFS
  • 出版社:Czech Academy of Agricultural Sciences
  • 摘要:Listeria monocytogenes poses a major risk for the safety of food products due to the ability to persist in food products and process line surfaces as biofilm. In this work, we investigated the L. monocytogenes biofilms in relation to development factors and possible control under different conditions. In particular, the ability of six strains of L. monocytogenes from vegetable and animal sources to form biofilms was evaluated on glass or polystyrene substrates under different temperatures (15, 30 and 37°C) and availability of nutrients, by using rich (BHI) or poor (HTM) growth media. Moreover, the effectiveness of three commonly used sanitizers (benzalkonium chloride, sodium hypochlorite and hydrogen peroxide) was compared to eradicate established biofilms. Our results showed that starved conditions, hydrophilic surfaces, and high temperatures increased the L. monocytogenes ability to produce biofilms. In general, benzalkonium chloride was the most effective chemical to remove established biofilms.
  • 关键词:abiotic surfaces; chemical sanitizers; starvation
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