Tobacco Quality Analysis of Industrial Classification of Different Years Using Near-Infrared (NIR) Spectrum
WANG Yi1, MA Xiang1, WEN Ya-dong1, YU Chun-xia1, WANG Luo-ping1, ZHAO Long-lian2, LI Jun-hui2*
1. Hongta Tobacco(Group)Co., Ltd., Yuxi 653100, China 2. College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China
Abstract:In this study, tobacco quality analysis of main Industrial classification of different years was carried out applying spectrum projection and correlation methods. The group of data was near-infrared (NIR) spectrum from Hongta Tobacco(Group)Co., Ltd. 5730 tobacco leaf Industrial classification samples from Yuxi in Yunnan province from 2007 to 2010 year were collected using near infrared spectroscopy, which from different parts and colors and all belong to tobacco varieties of HONGDA. The conclusion showed that, when the samples were divided to two part by the ratio of 2∶1 randomly as analysis and verification sets in the same year, the verification set corresponded with the analysis set applying spectrum projection because their correlation coefficients were above 0.98. The correlation coefficients between two different years applying spectrum projection were above 0.97. The highest correlation coefficient was the one between 2008 and 2009 year and the lowest correlation coefficient was the one between 2007 and 2010 year. At the same time, The study discussed a method to get the quantitative similarity values of different industrial classification samples. The similarity and consistency values were instructive in combination and replacement of tobacco leaf blending.
王 毅1,马 翔1,温亚东1,于春霞1,王萝萍1,赵龙莲2,李军会2* . 应用近红外光谱分析不同年度工业分级烟叶的特性[J]. 光谱学与光谱分析, 2012, 32(11): 3014-3018.
WANG Yi1, MA Xiang1, WEN Ya-dong1, YU Chun-xia1, WANG Luo-ping1, ZHAO Long-lian2, LI Jun-hui2* . Tobacco Quality Analysis of Industrial Classification of Different Years Using Near-Infrared (NIR) Spectrum . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(11): 3014-3018.