The Trend and Future Prospect of Lipid Analysis by NIR Spectroscopy

Abstract

NIR spectroscopy is an analytical method that utilizes spectra in the 750-2500 nm region and has been developed since the 1970s, mainly in the food industry, because it enables high-throughput measurement of the objects with nondestructive and noninvasive. The determination methods for lipid concentrations in foods and living organisms have been proposed in combination with chemometrics, and a number of instruments specified to lipid analysis have been introduced to the market. Furthermore, since lipid oxidation and abnormalities in lipid status are factors of malignant diseases in vivo, the visualization of lipid concentration in situ combined with near-infrared imaging has been actively considered in the medical field in recent years. In this article, the trends in lipid analysis in the field of near-infrared spectroscopy reviewed through the theory of near-infrared spectroscopy, instrumentation and several applications of quantitative analysis lipids, in addition, distribution analysis using NIR imaging.