22 October 2007 Determination of Chinese rice wine from different wineries by near-infrared spectroscopy combined with chemometrics methods
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Abstract
In this paper, 104 samples of Chinese rice wines of the same variety (Shaoxing rice wine), collected in three winery ("guyuelongshan", "pagoda" brand, "kuaijishan"), three brewed years (2002, 2004, 2004-2006) were analyzed by near-infrared transmission spectroscopy between 800 and 2500 nm. The spectral differences were studied by principal components analysis (PCA), and Classifications, according the brand, were carried out by discriminant analysis (DA) and partial least squares discriminant analysis (PLSDA). The DA model gained a total accuracy of 94.23% and when used to predict the brand of the validation set samples, a better result, correctly classified all of the three kinds of Chinese rice wine up to 100%, are obtained by PLSDA model. The work reported here is a feasibility study and requires further development with considerable samples of more different brands. Further studies are needed in order to improve the accuracy and robustness, and to extend the discrimination to other Chinese rice wine varieties or brands.
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Xiaoying Niu, Yibin Ying, Haiyan Yu, Lijuan Xie, Xiaping Fu, Ying Zhou, Xuesong Jiang, "Determination of Chinese rice wine from different wineries by near-infrared spectroscopy combined with chemometrics methods", Proc. SPIE 6761, Optics for Natural Resources, Agriculture, and Foods II, 67610Z (22 October 2007); doi: 10.1117/12.735240; https://doi.org/10.1117/12.735240
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