This work proposes a fast and simple method for detection and quantification of phenolic compounds in PDO Lambrusco wines using HPLC-DAD and chemometric techniques. Samples belonging to three different varieties of Lambrusco (Grasparossa, Salamino and Sorbara) were analyzed to provide a methodology appropriate for routine analysis. Given the high complexity of the sample and the coelution among chromatographic peaks, the use of chemometric techniques to extract the information of the individual eluting compounds was needed. Multivariate curve resolution-alternating least squares (MCR-ALS) allowed the resolution of the chromatographic peaks obtained and the use of this information for the quantification of the phenolic analytes in the presence of interferences. Use of multiset analysis and local rank/selectivity information was proven to be crucial for the correct resolution and quantification of compounds. The quantitative data provided by MCR-ALS about the phenolic targets and additional compounds present in the samples analyzed provided wine composition profiles, which were afterwards used to distinguish among wine varieties. Principal component analysis applied to the wine profiles allowed characterizing the wines according to their varieties. (C) 2012 Elsevier B.V. All rights reserved.

Determination of phenolic compounds and authentication of PDO Lambrusco wines by HPLC-DAD and chemometric techniques / E., Salvatore; Marina, Cocchi; Andrea, Marchetti; Marini, Federico; A., De Juan. - In: ANALYTICA CHIMICA ACTA. - ISSN 0003-2670. - STAMPA. - 761:(2013), pp. 34-45. (Intervento presentato al convegno 13th Conference on Chemometrics in Analytical Chemistry (CAC) tenutosi a Budapest, HUNGARY nel JUN 25-29, 2012) [10.1016/j.aca.2012.11.015].

Determination of phenolic compounds and authentication of PDO Lambrusco wines by HPLC-DAD and chemometric techniques

MARINI, Federico;
2013

Abstract

This work proposes a fast and simple method for detection and quantification of phenolic compounds in PDO Lambrusco wines using HPLC-DAD and chemometric techniques. Samples belonging to three different varieties of Lambrusco (Grasparossa, Salamino and Sorbara) were analyzed to provide a methodology appropriate for routine analysis. Given the high complexity of the sample and the coelution among chromatographic peaks, the use of chemometric techniques to extract the information of the individual eluting compounds was needed. Multivariate curve resolution-alternating least squares (MCR-ALS) allowed the resolution of the chromatographic peaks obtained and the use of this information for the quantification of the phenolic analytes in the presence of interferences. Use of multiset analysis and local rank/selectivity information was proven to be crucial for the correct resolution and quantification of compounds. The quantitative data provided by MCR-ALS about the phenolic targets and additional compounds present in the samples analyzed provided wine composition profiles, which were afterwards used to distinguish among wine varieties. Principal component analysis applied to the wine profiles allowed characterizing the wines according to their varieties. (C) 2012 Elsevier B.V. All rights reserved.
2013
lambrusco wine; multivariate curve resolution-alternating least squares (mcr-als); phenolic compounds; principal component analysis (pca); principal component analysis (pca).
01 Pubblicazione su rivista::01a Articolo in rivista
Determination of phenolic compounds and authentication of PDO Lambrusco wines by HPLC-DAD and chemometric techniques / E., Salvatore; Marina, Cocchi; Andrea, Marchetti; Marini, Federico; A., De Juan. - In: ANALYTICA CHIMICA ACTA. - ISSN 0003-2670. - STAMPA. - 761:(2013), pp. 34-45. (Intervento presentato al convegno 13th Conference on Chemometrics in Analytical Chemistry (CAC) tenutosi a Budapest, HUNGARY nel JUN 25-29, 2012) [10.1016/j.aca.2012.11.015].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/496262
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