Chemometric classification of honeys according to their type. II. Metal content data

The objective of this work was to develop a method to confirm the geographi cal authenticity of Galician-labelled honeys as Galician-produced honeys. E leven metals were determined in 42 honey samples divided into two categorie s: natural Galician honeys and processed non-Galician honeys. Multivariate chemometric techniques such as principal component analysis, linear discrim inant analysis, KNN and SIMCA are used to classify honeys according to thei r type and origin on the basis of the chemical data. Using only three featu res, Cu, Mn and Li, an almost correct classification was achieved. (C) 1999 Elsevier Science Ltd. All rights reserved.