烟片含水率对丙二醇近红外预测值及加料均匀性系数的影响  

Effect of Moisture Content on NIR Predicted Value of Propylene Glycol in Tobacco Leaf and Casing Uniformity Coefficient

作　　者：韩明[1] 王建民[2] 朱建新[1] 刘正林 刘博 李瑞丽[2] 程传玲[2] 王东飞[2] Han Ming;Wang Jianmin;Zhu Jianxin;Liu Zhenglin;Liu Bo;Li Ruili;Cheng Chuanling;Wang Dongfei(Anyang Cigarette Factory,China Tobacco Henan Industrial Co.,Ltd,Anyang Henan 455004;Food and Bioengineering Institute,Zhengzhou University of Light Industry,Zhengzhou 450002)

机构地区：[1]河南中烟工业有限责任公司安阳卷烟厂,河南安阳455004 [2]郑州轻工业学院食品与生物工程学院,郑州450002

出　　处：《中国农学通报》2018年第32期150-156,共7页Chinese Agricultural Science Bulletin

摘　　要：为探究烟片含水率对丙二醇近红外模型预测效果及加料均匀性系数的影响,制备不同丙二醇含量且每一含量均包含不同含水率的烟片样品,并预测其丙二醇含量,分析不同含水率以及不同丙二醇含量对预测结果的影响,且建立基于含水率的丙二醇预测结果的校正模型,并利用该模型分析样品校正前后的加料均匀性系数变化规律。结果表明:(1)待检样品与建模样品的含水率差异越大,预测值的绝对偏差也越大。当待检样品含水率大于建模样品含水率时,预测值偏高;反之,预测值偏低。(2)含水率与预测值的绝对偏差间呈极显著线性关系(R^2=0.938),因此,可以根据含水率校正预测值。(3)对某牌号、批次卷烟的加料均匀性评价结果表明,待检样品含水率与建模样品相比平均偏高约1.70%,校正前、后的加料均匀性系数相差2.0%。综上所述,控制含水率对丙二醇含量近红外预测值的影响,有利于提高加料均匀性评价结果的准确度。The paper aims to study the effect of moisture of tobacco sheet on the prediction results of the near infrared model of propylene glycol and the uniformity coefficient. Through preparing of samples with differentconcentrations of propylene glycol and each concentration sample with different moisture contents, the paperanalyzed the influence of moisture content and propylene glycol concentration on the prediction results.Results showed that:(1) the greater the difference of moisture content between testing sample and modelsample, the greater the absolute deviation of the predicted value, when the testing sample’s moisture contentwas larger than that of the model samples, the predictive value was high; otherwise, the predictive value waslow;(2) there was a significant linear relationship between the moisture content and the absolute deviation ofthe predicted value(R^2=0.938), therefore, the predicted value could be corrected according to the moisturecontent;(3) the evaluation result of the casing uniformity from a same batch of cigarettes indicated that,because the moisture content of testing samples was about 1.70% higher than that of model samples, there was2.0% difference between the casing uniformity coefficients calculated according to the predicted value and adjusted value of propylene glycol. In a word, it is helpful to improve the evaluation results of casing uniformity by controlling the influence of moisture content on NIR predicted value of propylene glycol.

关 键 词：烟片 加料 丙二醇 近红外分析 含水率 

分 类 号：TS452.1[农业科学—烟草工业]