Biofilm formation by foodborn microorganisms

生物膜是指附着在固体表面并生长于胞外聚合物中的微生物群落。与嗜热细胞相比，在生物膜中生长的细菌表现出对干燥、消毒剂和其他抗微生物剂的抗性增加。在食品工业中，生物膜越来越受到关注，因为它们可以在加工环境中提供病原体和腐败生物可以长时间存活的小生境。研究还表明，生物膜相关细菌可从食品接触表面分离，导致食品污染。本研究旨在探讨食源性致病菌单核细胞增生李斯特菌和空肠弯曲菌生物膜形成的机制。

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.