Use of an NIR MEMS spectrophotometer and visible/NIR hyperspectral imaging systems to predict quality parameters of treated ground peppercorns

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Title: Use of an NIR MEMS spectrophotometer and visible/NIR hyperspectral imaging systems to predict quality parameters of treated ground peppercorns
Authors: Esquerre, Carlos A.Achata, Eva M.García-Vaquero, MarcoO'Donnell, C. P. (Colm P.)et al.
Permanent link: http://hdl.handle.net/10197/11958
Date: Sep-2020
Online since: 2021-02-17T10:54:31Z
Abstract: The aim of this study was to investigate the potential of a micro-electromechanical NIR spectrophotometer (NIR-MEMS) and visible (Vis)/NIR hyperspectral imaging (HSI) systems to predict the moisture content, antioxidant capacity (DPPH, FRAP) and total phenolic content (TPC) of treated ground peppercorns. Partial least squares (PLS) models were developed using spectra from peppercorns treated with hot-air, microwave and cold plasma. The spectra were acquired using three spectroscopy systems: NIR-MEMS (1350–1650 nm), Vis-NIR HSI (450–950 nm) and NIR HSI (957–1664 nm). Very good predictions of TPC (RPD > 3.6) were achieved using NIR-MEMS. The performance of models developed using Vis-NIR HSI and NIR HSI were good or very good for DPPH (RPD > 3.0), FRAP (RPD >2.9) and TPC (RPD > 3.8). This study demonstrated the potential of NIR-MEMS and Vis-NIR/NIR HSI to predict the moisture content, antioxidant capacity and total phenolic content of peppercorns. The spectroscopy technologies investigated are suitable for use as in-line PAT tools to facilitate improved process control and understanding during peppercorn processing.
Type of material: Journal Article
Publisher: Elsevier
Journal: LWT
Volume: 131
Copyright (published version): 2020 the Authors
Keywords: NIR MEMSHyperspectral imagingAntioxidant capacityTotal phenolic contentPeppercorn
DOI: 10.1016/j.lwt.2020.109761
Language: en
Status of Item: Peer reviewed
ISSN: 0023-6438
This item is made available under a Creative Commons License: https://creativecommons.org/licenses/by/3.0/ie/
Appears in Collections:Biosystems and Food Engineering Research Collection
Agriculture and Food Science Research Collection

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