Abstract

In this paper, virgin olive oils (VOOs) coming from three different geographic origins of Apulia, were analysed for free acidity, peroxide value. spectrophotometric indexes, chlorophyll content. sterol, fatty acid, and triacylglycerol compositions. In order to predict the geographical origin of VOOs, different multivariate approaches were applied. By performing principal component analysis (PCA) a modest natural grouping of the VOOs was observed on the basis of their origin, and consequently three supervised techniques, i.e., general discriminant analysis (GDA), partial least squares-discriminant analysis (PLS-DA) and soft independent modelling of class analogy (SIMCA) were used and the results were compared. In particular, the best prediction ability was produced by applying GDA (average prediction ability of 82.5%), even if interesting results were obtained also by applying the other two classification techniques, i.e., 77.2% and 75.5% for PLS-DA and SIMCA, respectively. (C) 2012 Elsevier Ltd. All rights reserved.

Autore Pugliese

• Agostiano Angela , Longobardi Francesco , Catucci Lucia

Tutti gli autori

• AGOSTIANO A.;LONGOBARDI F.;CATUCCI L.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2012

ISSN

0308-8146

ISBN

Non Disponibile

Numero di citazioni Wos

29

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

30

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

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Codici ASJC

Non Disponibile