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Synchronous two-dimensional MIR correlation spectroscopy (2D-COS) as a novel method for screening smoke tainted wine

journal contribution
posted on 12.09.2018, 00:00 by AL Fudge, KL Wilkinson, R Ristic, Daniel CozzolinoDaniel Cozzolino
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. © 2013 Elsevier Ltd. All rights reserved.

Funding

Category 1 - Australian Competitive Grants (this includes ARC, NHMRC)

History

Volume

139

Issue

1-4

Start Page

115

End Page

119

Number of Pages

5

eISSN

1873-7072

ISSN

0308-8146

Publisher

Elsevier BV

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

University of Adelaide; Australian Wine Research Institute

Era Eligible

Yes

Journal

Food Chemistry