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Type: Journal article
Title: Synchronous two-dimensional MIR correlation spectroscopy (2D-COS) as a novel method for screening smoke tainted wine
Author: Fudge, A.
Wilkinson, K.
Ristic, R.
Cozzolino, D.
Citation: Food Chemistry, 2013; 139(1-4):115-119
Publisher: Elsevier Sci Ltd
Issue Date: 2013
ISSN: 0308-8146
Statement of
Anthea L. Fudge, Kerry L. Wilkinson, Renata Ristic, Daniel Cozzolino
Abstract: In this study, two-dimensional correlation spectroscopy (2D-COS) combined with mid-infrared (MIR) spectroscopy was evaluated as a novel technique for the identification of spectral regions associated with smoke-affected wine, for the purpose of screening taint arising from grapevine exposure to smoke. Smoke-affected wines obtained from experimental and industry sources were analysed using MIR spectroscopy and chemometrics, and calibration models developed. 2D-COS analysis was used to generate synchronous data maps for red and white cask wines spiked with guaiacol, a marker of smoke taint. Correlations were observed at wavelengths that could be attributable to aromatic C-C stretching, i.e., between 1400 and 1500 cm(-1), indicative of volatile phenols. These results demonstrate the potential of 2D-COS as a rapid, high-throughput technique for the preliminary screening of smoke tainted wine.
Keywords: Classification; two-dimensional correlation spectroscopy; mid-infrared spectroscopy; guaiacol; smoke taint; wine
Rights: © 2013 Elsevier Ltd. All rights reserved.
RMID: 0020126600
DOI: 10.1016/j.foodchem.2013.01.090
Appears in Collections:Agriculture, Food and Wine publications

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