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Lv, Yi; Wang, Jia-Nan; Jiang, Yuan; Ma, Xue-Mei; Ma, Feng-Lian; Ma, Xing-Ling; Zhang, Yao; Tang, Li-Hua; Wang, Wen-Xin; Ma, Gui-Mei; Yu, Yong-Jie
Molecules (Basel, Switzerland), 04/2023, Volume: 28, Issue: 9Journal Article
With the increased incidence of wine fraud, a fast and reliable method for wine certification has become a necessary prerequisite for the vigorous development of the global wine industry. In this study, a classification strategy based on three-dimensional fluorescence spectroscopy combined with chemometrics was proposed for oak-barrel and stainless steel tanks with oak chips aged wines. Principal component analysis (PCA), partial least squares analysis (PLS-DA), and Fisher discriminant analysis (FDA) were used to distinguish and evaluate the data matrix of the three-dimensional fluorescence spectra of wines. The results showed that FDA was superior to PCA and PLS-DA in classifying oak-barrel and stainless steel tanks with oak chips aged wines. As a general conclusion, three-dimensional fluorescence spectroscopy can provide valuable fingerprint information for the identification of oak-barrel and stainless steel tanks with oak chips aged wines, while the study will provide some theoretical references and standards for the quality control and quality assessment of oak-barrel aged wines.
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