Tian Yu, Cai Rui, Yue Tianli, Gao Zhenpeng, Yuan Yahong, Wang Zhouli
College of Food Science and Engineering, Northwest A&F University, Yangling, Shaanxi, China.
Ministry of Agriculture, Laboratory of Quality & Safety Risk Assessment for Agro-products (YangLing), Yangling, Shaanxi, China.
Crit Rev Food Sci Nutr. 2022;62(14):3951-3968. doi: 10.1080/10408398.2021.1871586. Epub 2021 Jan 11.
Foodborne pathogens are the main cause of human foodborne diseases and pose a serious threat to food safety. The control of them has always been a significant issue in food industry. With good biocompatibility and stability, nanomaterials display excellent bactericidal properties against many kinds of bacteria. In this review, the generation and application of nanostructures as antibacterial in the control of foodborne pathogens was summarized. The antibacterial effects of photocatalytic and contact bacteriostatic nanomaterials agents were mainly introduced. The influence factors and mechanisms of nanomaterials on the inactivation of foodborne pathogens were displayed. The photocatalytic nanostructured bacteriostatic agents can produce reactive oxygen species (ROS) and lead to charge transfer, which result in damaging of cell wall and leakage of small molecules under light irradiation. In addition, metals and metal oxide nanoparticles can kill bacterial cells by releasing metal ions, forming ROS and electrostatic interaction with cell membrane. Besides, the synergistic action of nanoparticles with natural antibacterial agents can improve the stability of these agents and their bactericidal performance. These current researches provided a broader idea for the control of microorganisms in food.
食源性病原体是人类食源性疾病的主要原因，对食品安全构成严重威胁。对它们的控制一直是食品工业中的一个重要问题。纳米材料具有良好的生物相容性和稳定性，对多种细菌表现出优异的杀菌性能。在本综述中，总结了纳米结构作为抗菌剂在控制食源性病原体方面的产生和应用。主要介绍了光催化和接触抑菌纳米材料的抗菌效果。展示了纳米材料对食源性病原体灭活的影响因素和机制。光催化纳米结构抑菌剂可产生活性氧（ROS）并导致电荷转移，在光照下导致细胞壁损伤和小分子泄漏。此外，金属和金属氧化物纳米颗粒可通过释放金属离子、形成ROS以及与细胞膜的静电相互作用来杀死细菌细胞。此外，纳米颗粒与天然抗菌剂的协同作用可提高这些抗菌剂的稳定性及其杀菌性能。这些当前的研究为食品中微生物的控制提供了更广阔的思路。
