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Identification of Quality Characteristics of Flue-Cured Tobacco Based on Raman Spectroscopy
Abstract
A rapid identification method for flue-cured tobacco quality was proposed based on Raman spectroscopy. Considering the critical quality factors of flue-cured tobacco-like oil content, softness, and glossiness, four statistical methods, random forest, K-nearest neighbor, logistic regression, and partial least squares, can effectively improve the accuracy of quality identification. We randomly collected 149 flue-cured tobacco samples from multiple producing areas in China. After Raman spectroscopy analysis, Savitzky–Golay convolution smoothing and multi-scatter correction were done. The functional groups were analyzed to select characteristic peaks as features for discriminant analysis. The results show that the Raman spectroscopic information can distinguish the quality of flue-cured tobacco with an accuracy greater than 95%, whereas the partial least-squares approach delivers an accuracy of 100%. We conclude that Raman spectroscopy can be considered a vital avenue for identifying the quality of flue-cured tobacco.
About the Authors
F.-F. Liu
China Tobacco Hubei Industrial Co. Ltd.
China
China
Hubei Wuhan
Y.-L. Shen
School of Mathematics and Statistics at Zhongnan University of Economics and Law
China
China
Hubei Wuhan
S.-W. Zhan
School of Chemistry, Chemical Engineering and Life Science at Wuhan University of Technology
China
China
Hubei Wuhan
Y. Wang
Hubei Tobacco Gold Leaf Redrying Ltd. Liability Co.
China
China
Hubei Xiangyang
Y. Mou
China Tobacco Hubei Industrial Co. Ltd.
China
China
Hubei Wuhan
S.-L. Dong
China Tobacco Hubei Industrial Co. Ltd.
China
China
Hubei Wuhan
J.-W. He
China Tobacco Hubei Industrial Co. Ltd.
China
China
Hubei Wuhan
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Review
For citations:
Liu F., Shen Y., Zhan S., Wang Y., Mou Y., Dong S., He J. Identification of Quality Characteristics of Flue-Cured Tobacco Based on Raman Spectroscopy. Zhurnal Prikladnoii Spektroskopii. 2023;90(1):113. (In Russ.)
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