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Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics

Fat-spread products are a stabilized emulsion of water and vegetable oils. The whole fat content can vary from 10 to 90% (w/w). There are different kinds, which are differently named, and their composition depends on the country in which they are produced or marketed. Thus, having analytical solutio...

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Autores principales: Bikrani, Sanae, Jiménez-Carvelo, Ana M., Nechar, Mounir, Bagur-González, M. Gracia, Souhail, Badredine, Cuadros-Rodríguez, Luis
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915439/
https://www.ncbi.nlm.nih.gov/pubmed/31752349
http://dx.doi.org/10.3390/foods8110588
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author Bikrani, Sanae
Jiménez-Carvelo, Ana M.
Nechar, Mounir
Bagur-González, M. Gracia
Souhail, Badredine
Cuadros-Rodríguez, Luis
author_facet Bikrani, Sanae
Jiménez-Carvelo, Ana M.
Nechar, Mounir
Bagur-González, M. Gracia
Souhail, Badredine
Cuadros-Rodríguez, Luis
author_sort Bikrani, Sanae
collection PubMed
description Fat-spread products are a stabilized emulsion of water and vegetable oils. The whole fat content can vary from 10 to 90% (w/w). There are different kinds, which are differently named, and their composition depends on the country in which they are produced or marketed. Thus, having analytical solutions to determine geographical origin is required. In this study, some multivariate classification methods are developed and optimised to differentiate fat-spread-related products from different geographical origins (Spain and Morocco), using as an analytical informative signal the instrumental fingerprints, acquired by liquid chromatography coupled with a diode array detector (HPLC-DAD) in both normal and reverse phase modes. No sample treatment was applied, and, prior to chromatographic analysis, only the samples were dissolved in n‑hexane. Soft independent modelling of class analogy (SIMCA) and partial least squares-discriminant analysis (PLS-DA) were used as classification methods. In addition, several classification strategies were applied, and performance of the classifications was evaluated applying proper classification metrics. Finally, 100% of samples were correctly classified applying PLS-DA with data collected in reverse phase.
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spelling pubmed-69154392019-12-24 Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics Bikrani, Sanae Jiménez-Carvelo, Ana M. Nechar, Mounir Bagur-González, M. Gracia Souhail, Badredine Cuadros-Rodríguez, Luis Foods Article Fat-spread products are a stabilized emulsion of water and vegetable oils. The whole fat content can vary from 10 to 90% (w/w). There are different kinds, which are differently named, and their composition depends on the country in which they are produced or marketed. Thus, having analytical solutions to determine geographical origin is required. In this study, some multivariate classification methods are developed and optimised to differentiate fat-spread-related products from different geographical origins (Spain and Morocco), using as an analytical informative signal the instrumental fingerprints, acquired by liquid chromatography coupled with a diode array detector (HPLC-DAD) in both normal and reverse phase modes. No sample treatment was applied, and, prior to chromatographic analysis, only the samples were dissolved in n‑hexane. Soft independent modelling of class analogy (SIMCA) and partial least squares-discriminant analysis (PLS-DA) were used as classification methods. In addition, several classification strategies were applied, and performance of the classifications was evaluated applying proper classification metrics. Finally, 100% of samples were correctly classified applying PLS-DA with data collected in reverse phase. MDPI 2019-11-19 /pmc/articles/PMC6915439/ /pubmed/31752349 http://dx.doi.org/10.3390/foods8110588 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bikrani, Sanae
Jiménez-Carvelo, Ana M.
Nechar, Mounir
Bagur-González, M. Gracia
Souhail, Badredine
Cuadros-Rodríguez, Luis
Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics
title Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics
title_full Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics
title_fullStr Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics
title_full_unstemmed Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics
title_short Authentication of the Geographical Origin of Margarines and Fat-Spread Products from Liquid Chromatographic UV-Absorption Fingerprints and Chemometrics
title_sort authentication of the geographical origin of margarines and fat-spread products from liquid chromatographic uv-absorption fingerprints and chemometrics
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6915439/
https://www.ncbi.nlm.nih.gov/pubmed/31752349
http://dx.doi.org/10.3390/foods8110588
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