基于近红外光谱技术的初烤烟叶致香成分含量特性快速定量评价
Rapid quantitative evaluation of the content of aroma components in flue-cured tobacco leaves based on near-infrared spectroscopy
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摘要: 为实现对初烤烟叶致香成分含量特性的快速评价,以河南、贵州和云南K326初烤烟叶为样本,采用近红外光谱技术结合偏最小二乘法判断分析(PLS-DA)建立PLS-DA模型和定量校正模型,对不同种植环境中K326初烤烟叶致香成分含量特性进行快速定量评价,结果表明:1)3个产地初烤烟叶致香成分在PLS-DA模型中差异性明显,第1,第2主成分对模型具有较好的解释能力,对模型分类变量的解释能力为81.4%;2)β-大马酮、亚麻酸甲酯、丁基化羟基甲苯、β-紫罗兰酮等化合物是对3个产地样品的重要区分性化合物;3)基于第1,第2主成分得分的近红外校正模型,其决定系数分别为0.970 0和0.908 0,具有较好的稳定性和预测准确性.Abstract: In order to realize the rapid evaluation of the content of aroma components in flue-cured tobacco leaves, the flue-cured tobacco leaves of He'nan, Guizhou and Yunnan K326 were used as samples, and the PLS-DA model and quantitative correction model were established by using near-infrared spectroscopy combined with partial least squares method. The differences in the aroma components of K326 flue-cured tobacco leaves in the planting environment were quickly and quantitatively evaluated. The results showed that:1) The aroma components of the flue-cured tobacco leaves in the three producing areas were significantly different in the PLS-DA model, and the first and second principal components had good interpretation ability. The explanatory power of the model categorical variable was 81.4%; 2) β-Damascone, methyl linolenic acid, butylated hydroxytoluene, β-ionone and other compounds were important distinguishing compounds for the three origin samples; 3) The near-infrared correction model based on the first and second principal component scores had a coefficient of determination of 0.970 0 and 0.908 0, respectively, and had good stability and prediction accuracy.
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[1]
邵丽,晋艳.生态条件对不同烤烟品种烟叶产质量的影响[J].烟草科技,2002(10):40.
-
[2]
常寿荣,罗华元,王玉,等.云南烤烟种植海拔与致香成分的相关性分析[J].中国烟草科学,2009,30(3):37.
-
[3]
ZHANG L,WANG X Y,GUO J Z,et al.Metabolic profling of Chinese tobacco leaf of different geographical origins by GC-MS[J].Journal of Agricultural and Food Chemistry,2013,61:2597.
-
[4]
YANG C, WU W, WU S C,et al.Aroma types of flue-cured tobacco in China:Spatial distribution and association with climatic factors[J].Theoretical and Applied Climatology,2014,115(3/4):541.
-
[5]
ZHU X L, GAO Y,CHEN Z Y,et al.Development of a chromatographic fingerprint of tobacco flavor by use of GC and GC-MS[J].Chromatographic,2009,69(7/8):745.
-
[6]
王玉,王保兴,武怡,等.卷烟挥发性成分的聚类分析[J].烟草科技,2007(2):48.
-
[7]
陈贵平,童佩瑾,耿金培,等.近红外光谱结合膜富集技术测定饮料中微量邻苯二甲酸二异辛酯的含量[J].分析测试学报,2012,31(5):605.
-
[8]
刘波平,荣菡,邓泽元,等.基于PLS-自组织竞争神经网络近红外光谱技术对鲜乳和掺假乳的检测方法研究[J].分析测试学报,2008,27(11):1147.
-
[9]
褚小立,许育鹏,陆婉珍.支持向量回归建立成品汽油通用近红外校正模型的研究[J].分析测试学报,2008,27(6):619.
-
[10]
CHU X,YUAN H F,LU W I.Research and applications of near infrared spectroscopy in China in recent years[J].Analytical Instrumentation,2006,22(2):1.
-
[11]
王惠文.偏最小二乘回归方法及其应用[M].北京:国防工业出版社,1999.
-
[12]
杨乾栩,冯斌,吴长伟,等.基于大孔树脂静态吸附的烟草增香组分制备及应用[J].烟草科技,2014(10):39.
-
[13]
OUSSAMA A,ELABADI F,PLATIKANOV S,et al.Detection of olive oil adulteration using FT-IR spectroscopy and PLS with variable importance of projection (VIP) scores[J].Journal of the American Oil Chemists Society,2012,89(10):1807.
-
[14]
XI Y X,SONG J Z,LI F,et al.Different types flue-cured tobacco aroma precursors and variance analysis of aroma components content[J].Journal of Zhejiang Agricultural Sciences,2011(2):355.
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