Journal
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
Volume 21, Issue 6, Pages 5171-5198Publisher
WILEY
DOI: 10.1111/1541-4337.13039
Keywords
fresh-cut; fruits and vegetables; HSI; imaging technology; intelligent detection
Categories
Funding
- China Key Research Program [2018YFD0700303]
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This paper reviews several imaging technologies that can be applied online to the processing of fresh-cut products, including multispectral/hyperspectral imaging, fluorescence imaging, and X-ray imaging. It comprehensively discusses the potential applications of these technologies in ensuring product quality and presents the challenges and future prospects of imaging technology.
Fresh-cut fruits and vegetables are healthy and convenient ready-to-eat foods, and the final quality is related to the raw materials and each step of the cutting unit. It is necessary to integrate suitable intelligent detection technologies into the production chain so as to inspect each operation to ensure high product quality. In this paper, several imaging technologies that can be applied online to the processing of fresh-cut products are reviewed, including: multispectral/hyperspectral imaging (M/HSI), fluorescence imaging (FI), X-ray imaging (XRI), ultrasonic imaging, thermal imaging (TI), magnetic resonance imaging (MRI), terahertz imaging, and microwave imaging (MWI). The principles, advantages, and limitations of these imaging technologies are critically summarized. The potential applications of these technologies in online quality control and detection during the fresh-cut processing are comprehensively discussed, including quality of raw materials, contamination of cutting equipment, foreign bodies mixed in the processing, browning and microorganisms of the cutting surface, quality/shelf-life evaluation, and so on. Finally, the challenges and future application prospects of imaging technology in industrialization are presented.
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