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Food Chem ; 340: 127906, 2021 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-32890857

RESUMO

Wine quality and character are defined in part by the terroir in which the grapes are grown. Metabolomic techniques, such as nuclear magnetic resonance (NMR) spectroscopy and inductively coupled plasma mass spectrometry (ICP-MS), are used to characterise wines and to detect wine fraud in other countries but have not been extensively trialled in Australia. This paper describes the use of ICP-MS and NMR to characterise a selection of Pinot noir wines. Wines from varying terroirs could be somewhat distinguished by their mineral content using principal component analysis (PCA). PCA was able to separate wines by their Australian states more clearly than by region. Metabolomic analysis of the wines using NMR did not find any correlations with climate/daytime temperatures, or region. An analysis of coinertia suggested that the two datasets were not redundant, and it is proposed that ICP-MS data is the most useful for determining regionality.


Assuntos
Análise de Alimentos/métodos , Espectroscopia de Ressonância Magnética/métodos , Espectrometria de Massas/métodos , Vinho/análise , Austrália , Clima , Análise de Alimentos/estatística & dados numéricos , Metabolômica , Nova Zelândia , Análise de Componente Principal , Temperatura , Vitis/química , Vitis/metabolismo
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