Application of visible/near infrared spectroscopy to quality control of fresh fruits and vegetables in large‐scale mass distribution channels: a preliminary test on carrots and tomatoes

Abstract

The application of optical techniques may help MDC buyers to monitor the quality of postharvest products, leading to an effective optimization of the entire supply chain. © 2017 Society of Chemical Industry.

On‐line discrimination of storage shelf‐life and prediction of post‐harvest quality for strawberry fruit by visible and near infrared spectroscopy

“…Supporting Information Figure S2 reports the selected wavelengths derived from the raw spectra obtained at different speeds. The selected variables were mainly located in the ranges 950–1,000 nm, 1,180–1,200 nm, and 1,390–1,610 nm, which also related the CH and OH absorption in water and carbohydrates (Beghi et al, ).…”

“…Supporting Information Figure S2 reports the selected wavelengths derived from the raw spectra obtained at different speeds. The selected variables were mainly located in the ranges 950-1,000 nm, 1,180-1,200 nm, and FIGURE 1 Average spectra of strawberry fruits at moving speed of 0.05, 0.10, and 0.15 m/s pretreated by MSC (a) and second derivative (b); average spectra of strawberry fruits stored for 1, 3, 5, and 7 days pretreated by MSC (c) and second derivative (d) 1,390-1,610 nm, which also related the C H and O H absorption in water and carbohydrates (Beghi et al, 2017).…”

“…1a reports the average original spectra of samples after MSC pretreatment obtained at different speeds. The main absorption bands were observed at around 980, 1,195, and 1,442 nm, related to the second and third overtone of O H and C H bonds in water, sugars,and other carbohydrates(Beghi, Giovenzana, Tugnolo, & Guidetti, 2017;Amodio et al, 2017). The spectra were transformed by second derivative to remove baseline drift and enhance small spectral features (Figure 1b).…”

Differentiation between Normal and White Striped Turkey Breasts by Visible/Near Infrared Spectroscopy and Multivariate Data Analysis

“…It has unique advantages if compared with classical methods such as quick and frequent measurements, and the ease of sample preparation. Moreover, it is fit for on-line applications in the agriculture field (Abu-Khalaf, 2015;Beghi et al, 2018), pharmaceutical industries (Guillemain et al, 2017), as well as medical sectors (Monteyne et al, 2018) to assess different quality traits. On another hand, NIRS has still some limitations where there is a necessity for reference method, low sensitivity to minor constituents, as well as complexity in the calibration (Buning-Pfaue, 2003).…”

Optimizing genetic algorithm–partial least squares model of soluble solids content in Fukumoto navel orange based on visible–near‐infrared transmittance spectroscopy using discrete wavelet transform

“…Visible–near‐infrared (Vis‐NIR) spectroscopy is an effective technique that has been widely used in quality evaluation in the fruit industry . The determination of chemical components in fruit based on Vis‐NIR reflectance and transmission combined with chemometrics are the main approaches for internal quality assessment. However, in the transmission application, the light will decay rapidly when it passes through intact fruit, especially for the varieties of large size and thick rind such as Fukumoto navel oranges.…”