Authentication of the protected designation of origin “Kaki Ribera del Xúquer” from its mineral profile

  • Alba Mir-Marqués
  • María Luisa Cervera University of Valencia- Spain
  • Miguel de la Guardia University of Valencia- Spain
Palabras clave: Protected designation of origin (PDO), mineral profile, inductively coupledplasma optical emission spectrometry (ICP-OES), inductively coupled plasma massspectrometry (ICP-MS), kaki fruit

Resumen

Protected designation of origin (PDO) “Kaki Ribera del Xúquer” samples were discriminated from those produced in other five origins concerning: towns surrounding Valencia, Alicante, Andalucía, Castellón and also Ribera, produced outside the PDO frame. Multivariate analysis tools; such as principal components analysis (PCA), hierarchical cluster analysis (HCA), linear discriminate analysis (LDA) and classification and regression trees(CARTs) were evaluated in order to achieve a correct sample classification of the six sample origin groups considered. Chemometric analysis was conducted with 14 variables (content of different elements in mg kg-1, determined by ICP-OES and ICP-MS). HCA and CART cannot authenticate the origin of kaki fruits at 100 %; CART provided a separation of 79 % for the PDO samples. PCA only discriminated well the samples as a function of their different harvest but LDA provided quite satisfactory results obtaining a classification rate of 100 % for samples ofthe calibration set and 67 % for those included in the validation set.

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Publicado
2016-11-23
Cómo citar
Mir-Marqués, A., Cervera, M. L., & de la Guardia, M. (2016). Authentication of the protected designation of origin “Kaki Ribera del Xúquer” from its mineral profile. Ciencia, 24(3). Recuperado a partir de https://produccioncientificaluz.org/index.php/ciencia/article/view/21710
Sección
Química/Chemistry