Spanish

       


English

User
 

Multi-element analysis and differentiation of Chilean wines using mineral composition and multivariate statistics

Yaneris Mirabal-Gallardo, María A. Caroca, Luis Muñoz, Macarena Meneses, V. Felipe Laurie

Abstract


The concentration of seventeen mineral elements was analyzed in 130 commercial samples of Chilean wines, using flame atomic absorption spectroscopy and inductively coupled plasma–mass spectrometry. The elements analyzed were within the usual concentration ranges previously reported in other wine regions; for instance: Fe, 2.08±0.99 mg L-1; Zn, 0.71±0.44 mg L-1; K, 788.10±219.66 mg L-1; Na, 14.62±8.61 mg L-1. When the mineral content of the samples was compared among wine areas, significant differences in the concentration of K, Na, Mn, Mg, Zn, and Cr were observed (p ≤ 0.05). Moreover, principal component and linear discriminant analyses were used to discriminate wines according to provenance, obtaining adjustments above 90 % for white wines and over 70 % for red wines.


Keywords


AAS, classification, element, ICP-MS, metal, multivariate statistics, wine

Full Text:

PDF PDF


DOI: http://dx.doi.org/10.7764/rcia.v45i2.1883

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.