scholarly journals Development of a hyperspectral imaging technique with internal scene scan for analysing the chemistry of food degradation

2018 ◽  
Author(s):  
Guo Chen ◽  
Jung Huang
Keyword(s):  
Hyperspectral Imaging ◽  
Food Quality ◽  
Biomedical Applications ◽  
Imaging Technique ◽  
Cost Effective ◽  
Field Of View ◽  
Oxidation Processes ◽  
Food Quality Control ◽  
Light Region ◽  
Food Quality And Safety

Hyperspectral imaging (HSI) can provide valuable information about the spatial distribution of ingredients in an object, therefore the technique has been widely adopted in numerous applications, ranging from remote sensing and land planning, food quality control, to biomedical applications. However, HSI instruments are expensive, which has limited the technique to some high-end applications. In this study, we developed a cost-effective HSI technique with an internal scene-scan mechanism, which enables rapid acquisitions of a scene without moving the instrument or the tested object. The apparatus was characterised, revealing an imaging resolution of 0.4 mm in a field of view (FoV) of 10 cm and a spectral resolution of 1.3 nm in the 40–800 nm visible light region. We succeeded in applying our apparatus to analyse the oxidation processes of apple and meat, which demonstrated our design and relevant data analysis to be of high value to visualise chemistry related to food quality and safety.

scholarly journals Biosensors and nanomaterials and their application for mycotoxin determination

2011 ◽  
Vol 4 (4) ◽  
pp. 361-374 ◽  
Author(s):  
I. Tothill
Keyword(s):  
Food Quality ◽  
Quantitative Methods ◽  
Scientific Literature ◽  
Cost Effective ◽  
Screening Tools ◽  
Field Analysis ◽  
Quality And Safety ◽  
Site Testing ◽  
Food Quality And Safety ◽  
Mycotoxin Analysis

Mycotoxin analysis and detection in food and drinks is vital for ensuring food quality and safety, eliminating and controlling the risk of consuming contaminated foods, and complying with the legislative limits set by food authorities worldwide. Most analysis of these toxins is still conducted using conventional methods; however, biosensor methods are currently being developed as screening tools for use in field analysis. Biosensors have demonstrated their ability to provide rapid, sensitive, robust and cost-effective quantitative methods for on-site testing. The development of biosensor devices for different mycotoxins has attracted much research interest in recent years with a range of devices being designed and reported in the scientific literature. However, with the advent of nanotechnology and its impact on the evolution of ultrasensitive devices, mycotoxin analysis is also benefiting from the advances taking place in applying nanomaterials in sensors development. This paper reviews the developments in the area of biosensors and their applications for mycotoxin analysis, as well as the development of micro/nanoarray transducers and nanoparticles and their use in the development of new rapid devices.

scholarly journals Polarizer-Free AOTF-Based SWIR Hyperspectral Imaging for Biomedical Applications

Sensors ◽  
2020 ◽  
Vol 20 (16) ◽  
pp. 4439
Author(s):  
Vladislav Batshev ◽  
Alexander Machikhin ◽  
Grigoriy Martynov ◽  
Vitold Pozhar ◽  
Sergey Boritko ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Biomedical Applications ◽  
Cost Effective ◽  
Short Wave ◽  
Tunable Filter ◽  
Quality Analysis ◽  
Imaging Data ◽  
Image Quality Analysis ◽  
Data Volume ◽  
Integrate Design

Optical biomedical imaging in short wave infrared (SWIR) range within 0.9–1.7 μm is a rapidly developing technique. For this reason, there is an increasing interest in cost-effective and robust hardware for hyperspectral imaging data acquisition in this range. Tunable-filter-based solutions are of particular interest as they provide image processing flexibility and effectiveness in terms of collected data volume. Acousto-optical tunable filters (AOTFs) provide a unique set of features necessary for high-quality SWIR hyperspectral imaging. In this paper, we discuss a polarizer-free configuration of an imaging AOTF that provides a compact and easy-to-integrate design of the whole imager. We have carried out image quality analysis of this system, assembled it and validated its efficiency through multiple experiments. The developed system can be helpful in many hyperspectral applications including biomedical analyses.

Evaluation of Food Quality and Safety with Hyperspectral Imaging (HSI)

2015 ◽  
Vol 8 (3) ◽  
pp. 306-322 ◽  
Author(s):  
Raúl Siche ◽  
Ricardo Vejarano ◽  
Victor Aredo ◽  
Lia Velasquez ◽  
Erick Saldaña ◽  
...  
Keyword(s):  
Hyperspectral Imaging ◽  
Food Quality ◽  
Quality And Safety ◽  
Food Quality And Safety
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