Author, as appears in the article.: Rovira, Gloria; Miaw, Carolina Sheng Whei; Martins, Mario Lucio Campos; Sena, Marcelo Martins; de Souza, Scheilla Vitorino Carvalho; Ruisanchez, Itziar; Callao, M Pilar
Department: Química Analítica i Química Orgànica
URV's Author/s: Callao Lasmarias, María Pilar / Rovira Garrido, Glòria / Ruisánchez Capelastegui, María Iciar
Keywords: Untargeted chemometrics Roc curve One-class simca Nir Multivariate data-analysis High-level data fusion Atr-ftir validation roc curve raman one -class simca nir midinfrared spectroscopy high-level data fusion food classification authentication atr-ftir
Abstract: An untargeted strategy was developed to determine cashew nuts adulteration with Brazilian nuts, pecan nuts, macadamia nuts and peanuts. A one-class SIMCA model was developed for the cashew non-adulterated samples by means of two spectroscopic techniques: Near-Infrared (NIR) and Attenuated Total Reflection-Fourier Transform Infrared (ATR-FTIR). Receiver operating characteristic (ROC) curves have been proved to be useful to optimize class limits, both for the NIR and ATR-FTIR models, allowing to balance the values of the performance parameters. An increase in the sensitivity of the training and test set has been obtained from 79% with NIR and 85% with ATR-FTIR to 93% in both cases. As a result, the specificity has slightly decreased from 100% with NIR and a range of 90–98% with ATR-FTIR to a range of 82–98% and 84–96%, respectively. The implementation of high-level data fusion to the classification results obtained from NIR and ATR-FTIR, considering the limit value optimized by ROC curves, allowed the improvement of the performance parameters of the untargeted strategy. Obtaining sensitivity values for the training and test set of 100% and 93%, respectively. Specificity values of 100% were obtained for the detection of Brazilian nuts, macadamia nuts and peanuts, while for pecans it was 98%.
Thematic Areas: Spectroscopy Saúde coletiva Química Odontología Nutrição Medicina ii Medicina i Materiais Interdisciplinar Geociências Farmacia Engenharias iv Engenharias iii Engenharias ii Engenharias i Enfermagem Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências ambientais Ciências agrárias i Ciência de alimentos Chemistry, analytical Biotecnología Biodiversidade Astronomia / física Analytical chemistry Administração pública e de empresas, ciências contábeis e turismo
licence for use: https://creativecommons.org/licenses/by/3.0/es/
Author's mail: mariapilar.callao@urv.cat gloria.rovira@urv.cat itziar.ruisanchez@urv.cat
Author identifier: 0000-0003-2691-329X 0000-0002-7097-3583
Record's date: 2024-10-12
Papper version: info:eu-repo/semantics/publishedVersion
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Microchemical Journal. 181 107816-
APA: Rovira, Gloria; Miaw, Carolina Sheng Whei; Martins, Mario Lucio Campos; Sena, Marcelo Martins; de Souza, Scheilla Vitorino Carvalho; Ruisanchez, Itzia (2022). In-depth chemometric strategy to detect up to four adulterants in cashew nuts by IR spectroscopic techniques. Microchemical Journal, 181(), 107816-. DOI: 10.1016/j.microc.2022.107816
Entity: Universitat Rovira i Virgili
Journal publication year: 2022
Publication Type: Journal Publications
Repositori URV