Osek Jacek, Lachtara Beata, Wieczorek Kinga
Department of Hygiene of Food of Animal Origin, National Veterinary Research Institute, Puławy, Poland.
Front Microbiol. 2022 Apr 26;13:866462. doi: 10.3389/fmicb.2022.866462. eCollection 2022.
The foodborne pathogen is the causative agent of human listeriosis, a severe disease, especially dangerous for the elderly, pregnant women, and newborns. Although this infection is comparatively rare, it is often associated with a significant mortality rate of 20-30% worldwide. Therefore, this microorganism has an important impact on food safety. can adapt, survive and even grow over a wide range of food production environmental stress conditions such as temperatures, low and high pH, high salt concentration, ultraviolet lights, presence of biocides and heavy metals. Furthermore, this bacterium is also able to form biofilm structures on a variety of surfaces in food production environments which makes it difficult to remove and allows it to persist for a long time. This increases the risk of contamination of food production facilities and finally foods. The present review focuses on the key issues related to the molecular mechanisms of the pathogen survival and adaptation to adverse environmental conditions. Knowledge and understanding of the adaptation approaches to environmental stress factors will have a significant influence on the development of new, efficient, and cost-effective methods of the pathogen control in the food industry, which is critical to ensure food production safety.
食源性病原体是人类李斯特菌病的病原体,这是一种严重疾病,对老年人、孕妇和新生儿尤其危险。尽管这种感染相对罕见,但在全球范围内,它往往与20%-30%的显著死亡率相关。因此,这种微生物对食品安全有重要影响。它能够在广泛的食品生产环境压力条件下适应、存活甚至生长,如温度、低pH值和高pH值、高盐浓度、紫外线、杀菌剂和重金属的存在。此外,这种细菌还能够在食品生产环境中的各种表面形成生物膜结构,这使得它难以清除,并使其能够长期存在。这增加了食品生产设施以及最终食品被污染的风险。本综述重点关注与病原体存活及适应不利环境条件的分子机制相关的关键问题。了解和认识病原体对环境应激因素的适应方法,将对食品工业中控制该病原体的新型、高效且经济有效的方法的开发产生重大影响,这对于确保食品生产安全至关重要。