Biofilm formation by foodborn microorganisms

生物膜是指在固体表面上附着和生长的微生物群落，同时将自己嵌入胞外聚合物(EPS)中。与浮游细胞相比，生长在生物膜中的细菌对干燥、消毒剂和其他抗菌剂具有更强的抵抗力。在食品工业中，生物膜是一个越来越令人担忧的问题，因为它们可能在加工环境中提供利基，在那里病原体和腐败生物可以长时间存活。研究还表明，与生物膜相关的细菌可以从食物接触表面分离，导致食物污染。本研究将探讨食源性致病菌单核细胞增多性李斯特菌和空肠弯曲菌的生物被膜形成机制。

Biofilms are defined as microbial communities adhering and growing on a solid surface while embedding themselves in extracellular polymeric substances (EPS). Compared to planktonic cells, bacteria growing in a biofilm demonstrate increased resistance to desiccation, sanitizers and other antimicrobial agents. In the food industry, biofilms are an increasing concern as they may provide niches in processing environments where pathogens and spoilage organisms can survive for extended periods of time. It has also been demonstrated that biofilm-associated bacteria can detach from food contact surfaces resulting in food contamination. This research will investigate the mechanisms of biofilm formation of the foodborne pathogens Listeria monocytogenes and Campylobacter jejuni.