烟草科技2017，Vol.50Issue(9)：55-60,6.
烟叶保润性能的NIR光谱测定
Determination of moisture retention of tobacco leaf by NIR technology
摘要
Abstract
For rapidly determining the moisture retention of tobacco leaf, a near infrared(NIR)model for moisture retention of tobacco leaf was developed by using equilibrium moisture desorption rate of tobacco leaf as an evaluation index. The temperature and humidity range for determining the moisture retention were 22 ℃and 60%-30%, respectively. The results showed that:1)The optimal spectral pretreatment method for the model was vector normalization, and the optimal wavelength range was 7 502.0-4 246.7 cm-1. The RMSECV and correlation coefficient of the model were 0.256 and 0.928 1, respectively. 2)The external validation of the model was conducted, the average absolute deviation and the average relative deviation of true values and predicted values were 0.15 percentage point and 1.80%, respectively. This model can quickly and effectively measure the moisture retention of tobacco leaf with good prediction effect.关键词
烤烟/烟叶/保润性能/近红外(NIR)模型/平衡失水率Key words
Flue-cured tobacco/Tobacco leaf/Moisture retention/Near infrared(NIR)model/Equilibrium moisture desorption rate分类
轻工纺织引用本文复制引用
朱龙杰,张华,庄亚东,曹毅,沈晓晨,付金存..烟叶保润性能的NIR光谱测定[J].烟草科技,2017,50(9):55-60,6.基金项目
江苏中烟工业有限责任公司科技项目"烟叶保润性能的近红外研究"(2015-03). （2015-03）
