Articles producció científica> Química Analítica i Química Orgànica

Chemometric strategies for authenticating extra virgin olive oils from two geographically adjacent Catalan protected designations of origin

  • Identification data

    Identifier: imarina:9228572
    Authors:
    Fort, AinaRuisanchez, ItziarPilar Callao, M
    Abstract:
    This paper proposes using multivariate methodology to authenticate the geographical origin of monovarietal Arbequina extra virgin olive oils from two geographically adjacent Catalan PDOs (protected designations of origin). Two spectroscopic techniques, fluorescence and FT-Raman were used to obtain multivariate data. The results obtained by principal component analysis (PCA), partial least squares-discriminant analysis (PLS-DA) and low and high-data fusion are discussed. The training and test samples were randomly chosen. To obtain greater representativeness in the results, the data set was independently divided three times. Thus, three different training and test sets were obtained and used to build independent classification models and carry out data fusion strategies. When the two fusion strategies were applied, the performance parameters (sensitivity and specificity) were better than when they were applied individually, which indicates that synergies between FT-Raman and fluorescence expand the information about the samples. It was also observed that the influence on the results of the type of data set obtained by the random division of the data set was minimized.
  • Others:

    Author, as appears in the article.: Fort, Aina; Ruisanchez, Itziar; Pilar Callao, M
    Department: Química Analítica i Química Orgànica
    URV's Author/s: Callao Lasmarias, María Pilar / Ruisánchez Capelastegui, María Iciar
    Keywords: Variable selection Soybean oil Raman-spectroscopy Quantification Qualitative-analysis Pls_da Ft-raman Food authentication Fluorescence Extra-virgin olive oil Data fusion Cultivar Classification Adulteration
    Abstract: This paper proposes using multivariate methodology to authenticate the geographical origin of monovarietal Arbequina extra virgin olive oils from two geographically adjacent Catalan PDOs (protected designations of origin). Two spectroscopic techniques, fluorescence and FT-Raman were used to obtain multivariate data. The results obtained by principal component analysis (PCA), partial least squares-discriminant analysis (PLS-DA) and low and high-data fusion are discussed. The training and test samples were randomly chosen. To obtain greater representativeness in the results, the data set was independently divided three times. Thus, three different training and test sets were obtained and used to build independent classification models and carry out data fusion strategies. When the two fusion strategies were applied, the performance parameters (sensitivity and specificity) were better than when they were applied individually, which indicates that synergies between FT-Raman and fluorescence expand the information about the samples. It was also observed that the influence on the results of the type of data set obtained by the random division of the data set was minimized.
    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 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
    Link to the original source: https://www.sciencedirect.com/science/article/pii/S0026265X21006974?via%3Dihub
    Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
    Papper original source: Microchemical Journal. 169 106611-
    APA: Fort, Aina; Ruisanchez, Itziar; Pilar Callao, M (2021). Chemometric strategies for authenticating extra virgin olive oils from two geographically adjacent Catalan protected designations of origin. Microchemical Journal, 169(), 106611-. DOI: 10.1016/j.microc.2021.106611
    Article's DOI: 10.1016/j.microc.2021.106611
    Entity: Universitat Rovira i Virgili
    Journal publication year: 2021
    Publication Type: Journal Publications
  • Keywords:

    Analytical Chemistry,Chemistry, Analytical,Spectroscopy
    Variable selection
    Soybean oil
    Raman-spectroscopy
    Quantification
    Qualitative-analysis
    Pls_da
    Ft-raman
    Food authentication
    Fluorescence
    Extra-virgin olive oil
    Data fusion
    Cultivar
    Classification
    Adulteration
    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
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