Fuente: Foods - Revista científica (MDPI) Foods, Vol. 14, Pages 4073: Advances in Optical Sensing Technologies for On-Site Detection of Harmful Residues in Food: Principles and Recent Applications
Foods doi: 10.3390/foods14234073
Authors:
Qinghua Liu
Yuanyuan Liu
Huihui Yang
Qian Su
Linglei Li
Xiangqi Meng
Minmin Li
Xiaoxue Jia
Peihua Ma
Bei Fan
Fengzhong Wang
Long Li

Food safety has recently attracted increasing attention, underscoring the need for timely and accurate on-site testing technologies. Optical detection, among various methods, offers notable advantages, including ease of use and rapid results, making it a promising approach for food safety applications. This paper reviews the fundamental principles of optical inspection for food field examination and explores its practical applications, including techniques such as surface-enhanced Raman scattering, UV–visible absorption spectroscopy, and fluorescence detection. Furthermore, this review discusses the integration of detection technologies with nanotechnology and smartphone-based systems. In addition, this review discusses the current applications, challenges, and potential solutions associated with optical detection in on-site food inspections.