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    Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/30586

    Título
    Flavor characteristics of Spanish and Iranian saffron analyzed by an electronic tongue
    Autor
    Heidarbeigi, Kobra
    Mohtasebi, Seyed Saeid
    Serrano Diaz, Jessica
    Medina Plaza, Cristina
    Ghasemi-Varnamkhasti, Mahdi
    García Hernández, CeliaAutoridad UVA
    Alonso Alonso, Gonzalo
    Rafiee, Shahin
    Rezaei, Karamatollah
    Saja Sáez, José Antonio de
    Rodríguez Méndez, María LuzAutoridad UVA Orcid
    Año del Documento
    2015
    Documento Fuente
    Quality Assurance and Safety of Crops & Foods p. 1-10
    Abstract
    In this study, a portable electronic tongue was developed and successfully used to distinguish and to discriminate quality of saffron samples. The proposed system consisted of an array of voltammetric sensors based on screen-printed electrodes (SPE), where the working electrodes were of different chemical natures (e.g. carbon, gold and modified carbon electrode). Moreover, the carbon electrodes were chemically modified by electrocatalytic copper phthalocyanine derivatives. The electrodes were immersed in saffron infusions to produce complex voltammetric curves that were characterised for each saffron sample. The electrochemical signals provided by the array showed good correlations with the data obtained from traditional chemical analysis, in particular with the kaempferol, a flavonol with antioxidant activity. The calibration model was optimised using more meaningful description of factors. Finally, discriminant analysis showed that the proposed e-tongue based on SPEs modified with phthalocyanine is useful for discrimination of saffron samples with different qualities. All of these results reveal that proposed e-tongue has a high potential for saffron quality control due to its very simple sample preparation and also its fast response.
    ISSN
    1757-8361
    Revisión por pares
    SI
    DOI
    10.390/QAS2015.0591
    Idioma
    eng
    URI
    http://uvadoc.uva.es/handle/10324/30586
    Derechos
    openAccess
    Collections
    • BioEcoUVa - Artículos de revista [185]
    • DEP63 - Artículos de revista [223]
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