2026-04-14T04:25:04Zhttps://recercat.cat/oai/request

oai:recercat.cat:20.500.12327/32752025-10-22T11:34:34Zcom_2072_4428com_2072_4427col_2072_487898

Meeting the challenge of varietal and geographical authentication of hazelnuts through lipid metabolite fingerprinting Torres-Cobos, B. Nicotra, S.B. Rovira, Merce Romero, Agusti Guardiola, F. Tres, A. Vichi, S. Producció Vegetal Fructicultura Hazelnuts are high-quality products with significant economic importance in many European countries. Their market price depends on their qualitative characteristics, which are driven by cultivar and geographical origin, making hazelnuts susceptible to fraud. This study systematically compared two lipidomic fingerprinting strategies for the simultaneous authentication of hazelnut cultivar and provenance, based on the analysis of the unsaponifiable fraction (UF) and triacylglycerol (TAG) profiles by gas chromatography–mass spectrometry coupled with chemometrics. PLS-DA classification models were developed using a large sample set with high natural variability (n = 309) to discriminate hazelnuts by cultivar and origin. External validation results demonstrated the suitability of the UF fingerprint as a hazelnut authentication tool, both tested models showing a high efficiency (>94 %). The correct classification rate of the TAG fingerprinting method was lower (>80 %), but due to its faster analysis time, it is recommended as a complementary screening tool to UF fingerprinting. 2025-10-22T11:34:34Z 2025-10-22T11:34:34Z 2025-10-22T11:34:34Z 2024-09-10 info:eu-repo/semantics/article Torres-Cobos, B., S.B. Nicotra, M. Rovira, A. Romero, F. Guardiola, A. Tres, and S. Vichi. 2024. “Meeting the Challenge of Varietal and Geographical Authentication of Hazelnuts Through Lipid Metabolite Fingerprinting.” Food Chemistry, 463 (3): 141203. doi: 10.1016/j.foodchem.2024.141203 0308-8146 http://hdl.handle.net/20.500.12327/3275 https://doi.org/10.1016/j.foodchem.2024.141203 eng Food Chemistry MICINN/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I/CEX2021-001234-M/ES/ / FEDER/ / /EU/ / MICIU/Programa Estatal de generación del conocimiento y fortalecimiento científico y tecnológico del sistema I+D+I y Programa Estatal de I+D+I orientada a los retos de la sociedad/PID2020-117701RB-I00/ES/Desarrollo de herramientas de detección de fraudes en frutos secos españoles con alto riesgo de falsificación/TRACENUTS http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 International Elsevier