Spectroscopy and Spectral Analysis, Volume. 42, Issue 3, 764(2022)
Application of Mid-Infrared Spectroscopy in the Analysis of Key Indexes of Strong Flavour Chinese Spirits Base Liquor
Figures & Tables(5)
Fig. 1. The frequency of each variable by chosen
(a): Total acid; (b): Ethyl caproate
Fig. 2. The distribution diagram of variables selected by GA-SiPLS
(a): Total acid; (b): Ethyl caproate
Fig. 3. Distribution of predicted and reference values in GA-SiPLS models
(a): Total acid; (b): Ethyl caproate
Table 1. Statistical results of Calibration set and validation set
View tableView in ArticleTable 1. Statistical results of Calibration set and validation set
指标 集合 样品
数平均值/
(g·L-1)最大值/
(g·L-1)最小值/
(g·L-1)标准
差总酸 校正集 164 1.38 2.18 0.95 0.30 验证集 82 1.38 2.04 0.98 0.27 己酸乙酯 校正集 164 2.34 5.39 0.45 1.14 验证集 82 2.47 5.16 0.50 1.19
Table 2. Different PLS model of two properties in base wine and the result of performance evaluation
View tableView in ArticleTable 2. Different PLS model of two properties in base wine and the result of performance evaluation
指标 建模方法 变量
数R2 RMSEP RPD 主成
分数PLS(全光谱) 935 0.666 0.156 1.731 5 总酸 SiPLS 220 0.992 0.024 11.250 9 GA-SiPLS 55 0.993 0.023 11.739 9 PLS(全光谱) 935 0.453 0.981 1.213 5 己酸乙酯 SiPLS 110 0.995 0.093 12.796 8 GA-SiPLS 40 0. 997 0.077 15.455 9
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Jun ZHOU, Yang YANG, Yao YAO, Zi-wen LI, Jian WANG, Chang-jun HOU. Application of Mid-Infrared Spectroscopy in the Analysis of Key Indexes of Strong Flavour Chinese Spirits Base Liquor[J]. Spectroscopy and Spectral Analysis, 2022, 42(3): 764
Paper Information
Category: Research Articles
Received: Jan. 28, 2021
Accepted: Apr. 23, 2021
Published Online: Apr. 19, 2022
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