Application of Visible to Near-Infrared Spectroscopy for Non-Destructive Assessment of Quality Parameters of Fruit

Abstract

The accuracy and robustness of prediction models are very important to the successful commercial application of visible to near-infrared spectroscopy (Vis-NIRS) on fruit. The difference in physiological characteristics of fruit is very wide, which necessitates variance in the type of spectrometers applied to collect spectral data, pre-processing of the collected data and chemometric techniques used to develop robust models. Relevant practices of data collection, processing and the development of models are a challenge because of the required knowledge of fruit physiology in addition to the Vis-NIRS expertise of a researcher. This chapter deals with the application of Vis-NIRS on fruit by discussing commonly used spectrometers, data chemometric treatment and common models developed for assessing quality of specific types of fruit. The chapter intends to create an overview of commonly used techniques for guiding general users of these techniques. Current status, gaps and future perspectives of the application of Vis-NIRS on fruit are also discussed for challenging researchers who are experts in this research field.

Non-Destructive Quality Measurement for Three Varieties of Tomato Using VIS/NIR Spectroscopy

“…When the values of RPD and R 2 are higher than 1.5 and 0.5, respectively, the model is considered acceptable as described by Ncama et al [19] and Beghi et al [47] for fruit quality evaluation using the PLS model.…”

“…One of these methods is visible/near-infrared (VIS/NIR) spectroscopy [17,18]. The principle of the VIS/NIR technique is based on the absorption of energy by the functional groups (e.g., R-OH, R-CH, O-H and C-H) present in the fruits, which causes vibration of molecules, and this forms acquired spectra [19]. The VIS/NIR technology can be applied in many ways, i.e., reflectance, transmittance and interactance mode.…”

Application of Infrared Spectroscopy in the Characterization of Lignocellulosic Biomasses Utilized in Wastewater Treatment

“…The NIR spectrometer is simple, speedy, portable, non-destructive, and of low cost and high throughput. Therefore, there are various applications of NIRS including both qualitative and quantitative investigations [30][31][32][33][34][35][36]. Selective absorption of NIR radiation by the principal functionalities in the lignocellulosic materials makes NIRS a powerful approach for studying woods and lignocelluloses and identifying the composition of biomasses, their biochemical properties following the application of certain treatment conditions, and the impact of genetic engineering on lignocellulosic feedstock [37][38][39][40][41][42][43][44].…”

Applications of Near-Infrared Spectroscopy (NIRS) in Fish Value Chain

“…The rapid development of chemometric methods during the last decades has allowed the application of NIRS to different areas of food science [11], such as food fraud and authenticity [12,13] and food quality [14,15].…”