Utilize este identificador para referenciar este registo: http://hdl.handle.net/1822/31730

TítuloSingle-cultivar extra virgin olive oil classification using a potentiometric electronic tongue
Autor(es)Dias, Luís G.
Fernandes, Andreia
Veloso, Ana C. A.
Machado, Adélio A. S. C.
Pereira, José A.
Peres, António M.
Palavras-chaveExtra virgin olive oil
Single olive cultivar
Potentiometric electronic tongue
Linear discriminant analysis
Simulated annealing algorithm
Data2014
EditoraElsevier
RevistaFood chemistry
Resumo(s)Label authentication of monovarietal extra virgin olive oils is of great importance. A novel approach based on a potentiometric electronic tongue is proposed to classify oils obtained from single olive cultivars (Portuguese cvs. Cobrançosa, Madural, Verdeal Transmontana; Spanish cvs. Arbequina, Hojiblanca, Picual). A meta-heuristic simulated annealing algorithm was applied to select the most informative sets of sensors to establish predictive linear discriminant models. Olive oils were correctly classified according to olive cultivar (sensitivities greater than 97%) and each Spanish olive oil was satisfactorily discriminated from the Portuguese ones with the exception of cv. Arbequina (sensitivities from 61% to 98%). Also, the discriminant ability was related to the polar compounds contents of olive oils and so, indirectly, with organoleptic properties like bitterness, astringency or pungency. Therefore the proposed E-tongue can be foreseen as a useful auxiliary tool for trained sensory panels for the classification of monovarietal extra virgin olive oils.
Tipoarticle
URIhttp://hdl.handle.net/1822/31730
DOI10.1016/j.foodchem.2014.03.072
ISSN0308-8146
e-ISSN0308-8146
Arbitragem científicayes
AcessoopenAccess
Aparece nas coleções:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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