基于量子点可视技术快速检测鲜食农产品中食源性致病菌的应用研究进展

Research progress in the application of quantum dots-based visualizationtechnology for rapid detection of foodborne pathogens in freshagricultural produces

鲜食农产品营养损失少,食用方便,已成为健康饮食新食材和膳食结构的重要组成部分。但由于在运输、贮藏等环节中易受到环境条件影响导致食源性致病菌的污染,从而引发腐败变质和食品安全事件,因此,针对鲜食农产品食源性致病菌的污染开发出操作简单、可视化的快速检测技术至关重要。量子点是一类能够产生荧光的纳米级半导体颗粒,具有稳定性好、可视性强、灵敏度高、量子产率高等优点,近年来在食品检测中的应用呈数量级增长。文章在总结了量子点的理化性质、合成制备的基础上,综述了其在食源性致病菌检测中的应用研究进展,并对量子点在鲜食农产品快速检测的主要挑战和应用前景进行阐述,以期为基于量子点的快速检测在食品安全中的广泛应用提供借鉴,为食品安全以及人类健康保驾护航。

Fresh agricultural products have become new choices for healthy diet and an important part of dietary structure due to their low nutritional loss and ease of consumption.However,they are susceptible to contamination by foodborne pathogens during transportation and storage,which can lead to spoilage and food safety incidents.Therefore,it is crucial to develop a simple and visualized rapid detection technique for foodborne pathogens contamination of fresh agricultural products.Quantum dots(QDs)are a class of nano-scale semiconductor particles capable of generating fluorescence,and their applications in food detection have grown enormously in recent years because of their good stability,strong visibility,high sensitivity,and high quantum yield.Based on the physical and chemical properties,synthesis and preparation of QDs,the paper reviews the research progress in the application of QDs in the detection of foodborne pathogens,and describes the main challenges and future prospects of QDs in the rapid detection of fresh agricultural products,in order to provide strategies for the wide application of QDs-based rapid detection in food safety,so as to protect food safety and human health.