Articolo in rivista, 2008, ENG, 10.1016/j.aca.2008.01.065

NMR and Chemometric methods: A powerful combination for characterization of Balsamic and Traditional Balsamic Vinegar of Modena

Consonni roberto; Cagliani laura ruth; Benevelli francesca; Spraul manfred; Humpfer eberhard; Stocchero matteo

Consonni roberto, Istituto per lo Studio delle Macromolecole Cagliani laura ruth, Istituto per lo Studio delle Macromolecole Benevelli francesca, Bruker Biospin srl Spraul manfred, Bruker Biospin GmbH – Karlsruhe Humpfer eberhard, Bruker Biospin GmbH – Karlsruhe Stocchero matteo, S-IN Soluzioni Informatiche

This work presents the capability of NMR spectroscopy combined with Chemometrics in predicting the ageing of Balsamic and Traditional Balsamic Vinegar of Modena. The need of an analytical method is an important requirement for both research oriented and commercial evaluation of these very valuable products. H-1 NMR spectroscopy, based on the advantage of rapid sample analysis without any manipulation or derivatization, is here proposed as a valid tool to describe Balsamic and Traditional Balsamic Vinegar of Modena. For this purpose, 72 reliable samples, were divided into three different groups according to their ageing process: young (<12 years), old (>12 and <25 years) and extra old (>25 years). Hierarchical Projection to Latent Structures Discriminant Analysis (PLS-DA) allowed us to characterize the ageing process. Variables showing the largest VIP (Variable Importance in the Projection) were extracted from PLS-DA model, thus shedding lights onto the role played by specific compounds in this complex ageing process. Two robust classification models, were built by PLS-DA and Naive Bayes classifier and compared to prove the accuracy of the representation on both training and test sets. The predictions obtained for 41 "unknown" vinegar samples with these both methods gave more than 80% agreement among them. (c) 2008 Published by Elsevier B.V.

Analytica chimica acta (Print) 611 (1), pp. 31–40

Keywords

Traditional Balsamic Vinegar of Modena, Projection to Latent Structures, Discriminant Analysis, H-1 NMR, ageing process

CNR authors

Cagliani Laura Ruth, Consonni Roberto

CNR institutes

ISMAC – Istituto per lo studio delle macromolecole

ID: 54421

Year: 2008

Type: Articolo in rivista

Creation: 2009-06-16 00:00:00.000

Last update: 2012-06-07 14:21:27.000

External IDs

CNR OAI-PMH: oai:it.cnr:prodotti:54421

DOI: 10.1016/j.aca.2008.01.065

ISI Web of Science (WOS): 000254776300003

Scopus: 2-s2.0-39549088491