基于烤烟中性致香物质的烤烟香型判别分析  

Discriminant Analysis of Aroma Types of Flue-cured Tobacco on Neutral Aroma Components

作　　者：詹军 张晓龙 周芳芳 邓国宾 资文华 毛春堂 包崇彦 宫长荣[2] 

机构地区：[1]云南瑞升烟草技术(集团)有限公司,昆明650106 [2]河南农业大学烟草学院,郑州450002

出　　处：《西北农业学报》2012年第12期80-87,共8页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家烟草专卖局资助项目(3300806156);国家烟草专卖局重大科技项目(30300318)

摘　　要：以中国11个主要产烟省61个C3F烟叶为材料,测定不同香型烤烟中性致香物质含量,并以24种中性致香物质为指标,采用逐步判别分析法对不同香型烤烟样品进行判别分析,建立判别函数。结果表明,中间香型中性致香物质总量最高[(467.562±96.188)μg/g],浓香型其次[(417.115±113.166)μg/g],清香型最低[(377.267±56.677)μg/g],中间香型烤烟中有13种物质含量最高,浓香型有8种,清香型仅有2种。共有10个中性致香物质指标(β-大马酮、6-甲基-5-庚烯-2-酮、己醛、3-氧代-α-紫罗兰醇、苯甲醇、吡咯、苯乙醇、芳樟醇、新植二烯、巨豆三烯酮)进入判别函数,并建立判别模型。用自身验证法和交互验证法对原样品进行回判,其回判准确率分别为93.44%、88.52%;采用该模型对其余22个样品分别进行预测,3种香型(浓香型、中间香型、清香型)烤烟预测样本的判别正确率分别为88.89%、100%和85.71%。可见,该方法判别效果较好,可以实现对烤烟香型的快速鉴别分析。In order to distinguish characteristics of aroma types of flue-cured tobacco and establish mathematical model for judgment of aroma types.Contents of neutral aroma components in flue-cured tobacco of different aroma types were analyszed which were based on 61 samples（C3F） from 11 main tobacco production provinces of China.Stepwise discriminant analysis was applied to different aroma types tobacco leaves using 24 neutral aroma components and discriminant function was expressed.The results showed that contents of neutral aroma components in middle aroma type were the highest [（467.562±96.188） μg/g],following as full aroma type [（417.115±113.166） μg/g],and then clean aroma type [（377.267±56.677） μg/g].The contents of 13 components in middle aroma type were the highest,the 8 components in full aroma type and 2 components in clean aroma type.The results of discriminant analysis indicated that 10 neutral aroma components（β-damascenone,6-methyl-5-heptene-2-dione,hexanal,3-oxo-α-ionol,benzyl alcohol,pyrrole,phenylacetaldehyde,linalool,neophytadiene,megastigmatrienone） were used in the discriminant function and found discriminant model.Self-validation method and Cross-validation method were applied to back evaluation on original sample.The accuracy of back evaluation were 93.44% and 88.52% respectively.The other 22 samples were predicted using this modle,the accuracy of predicted samples about 3 kinds aroma types（full aroma type,middle aroma type,clean aroma type） were 88.89%,100%,85.71% respectively.In conclusion,the discrimination method had its own advantage and could be used to identify aroma type of flue-cured tobacco accurately and quickly.

关 键 词：烤烟 中性致香物质 香型 判别分析 

分 类 号：S572[农业科学—烟草工业]