2026-04-18T07:53:46Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12327/37392025-10-22T11:25:47Zcom_2072_4428com_2072_4427col_2072_487898

NIR-HSI for the non-destructive monitoring of in-bag hazelnut oxidation Ezenarro, Jokin Saouabi, Ines García-Pizarro, Angel Schorn-García, Daniel Mestres, Montserrat Amigo, Jose Manuel Busto, Olga Boqué, Ricard Producció Vegetal Fructicultura 663/664 This study explores the application of Near-Infrared Hyperspectral Imaging (NIR-HSI) as a non-destructive method for monitoring the oxidation of hazelnuts (Corylus avellana) stored under different atmospheric condi- tions (air, nitrogen, and vacuum) and light exposures, directly inside plastic bags, without the need for packaging removal nor sample preparation. Hazelnuts were imaged over a 78-day storage period, and data were analysed using ANOVA-Simultaneous Component Analysis (ASCA) to quantify the effects of time, atmosphere, and light on oxidation. Individual hazelnuts within each bag were segmented for analysis to study inter-hazelnut variability. Images were studied individually to detect oxidation patterns on the surface. Results indicate that time is the primary driver of oxidation, as expected, with atmosphere and light significantly impacting oxidation rates. Vacuum storage was most effective at reducing oxidation, while light exposure under ambient conditions accelerated oxidation via photooxidation. Sensory analysis confirmed that spectroscopic indicators of oxidation corresponded to perceptible sensory changes, validating NIR-HSI as a reliable tool for assessing hazelnut quality. Grant URV Martí i Franqués – Banco Santander (2021PMF-BS-12; J. Ezenarro). Grant URV-IRTA Martí i Franqués (2023PMF-PIPF-49; I. Saouabi). Chemometrics and Sensorics for Analytical Solutions (CHE- MOSENS, ref.2021 SGR 00705, Departament de Recerca i Universitats, Generalitat de Catalunya) info:eu-repo/semantics/acceptedVersion 2025-02-16 info:eu-repo/semantics/article Ezenarro, Jokin, Ines Saouabi, Ángel García-Pizarro, Daniel Schorn-García, Montserrat Mestres, Jose Manuel Amigo, Olga Busto, and Ricard Boqué. 2025. “NIR-HSI for the Non-destructive Monitoring of In-bag Hazelnut Oxidation.” Spectrochimica Acta Part a Molecular and Biomolecular Spectroscopy 333: 125906. doi: 10.1016/j.saa.2025.125906 1386-1425 http://hdl.handle.net/20.500.12327/3739 https://doi.org/10.1016/j.saa.2025.125906 eng Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/embargoedAccess 29 Elsevier