Department of Food Science, Purdue University, West Lafayette, Indiana 47907, USA; email:
Annu Rev Food Sci Technol. 2021 Mar 25;12:539-566. doi: 10.1146/annurev-food-062520-082307.
An increasing number of foodborne outbreaks, growing consumer desire for healthier products, and surging numbers of food allergy cases necessitate strict handling and screening of foods at every step of the food supply chain. Current standard procedures for detecting food toxins, contaminants, allergens, and pathogens require costly analytical devices, skilled technicians, and long sample preparation times. These challenges can be overcome with the use of biosensors because they provide accurate, rapid, selective, qualitative, and quantitative detection of analytes. Their ease of use, low-cost production, portability, and nondestructive measurement techniques also enable on-site detection of analytes. For this reason, biosensors find many applications in food safety and quality assessments. The detection mechanisms of biosensors can be varied with the use of different transducers, such as optical, electrochemical, or mechanical. These options provide a more appropriate selection of the biosensors for the intended use. In this review, recent studies focusing on the fabrication of biosensors for food safety or food quality purposes are summarized. To differentiate the detection mechanisms, the review is divided into sections based on the transducer type used.
越来越多的食源性疾病爆发、消费者对更健康产品的需求不断增长以及越来越多的食物过敏病例，都需要在食品供应链的每一步骤对食品进行严格的处理和筛选。目前用于检测食品毒素、污染物、过敏原和病原体的标准程序需要昂贵的分析设备、熟练的技术人员和较长的样品制备时间。生物传感器的使用可以克服这些挑战，因为它们可以对分析物进行准确、快速、选择性、定性和定量的检测。它们易于使用、低成本生产、便携性和非破坏性测量技术也使得可以在现场检测分析物。出于这个原因，生物传感器在食品安全和质量评估中有着广泛的应用。生物传感器的检测机制可以通过使用不同的换能器（如光学、电化学或机械）来改变。这些选择为预期用途提供了更合适的生物传感器选择。在这篇综述中，总结了最近关于用于食品安全或食品质量目的的生物传感器的制造的研究。为了区分检测机制，根据使用的换能器类型将综述分为几节。
