烟草科技Issue(2)：47-52,6.DOI:10.16135/j.issn1002-0861.20150210
“干头干尾”烟丝挥发性香味物质的主成分聚类分析
Principal Component Cluster Analysis of Volatile Aroma Components in Over-dried Cut Tobacco Produced in Start and Finish Stages of Drying Process
摘要
Abstract
In order to investigate the variation of volatile aroma components in over-dried cut tobacco produced in start and finish stages of a drying process in a thin plate rotary dryer, concerning twenty-one volatile aroma components in over-dried cut tobacco of different moisture contents of a third class cigarette brand, twelve of the volatile components selected by principal component subset selection method were used for principal component analysis. Three principal components, which cumulatively contributed more than 88% of resolution were extracted and scored. The cluster analysis and sensory evaluation of over-dried cut tobacco were validated by measuring the differences between tobacco samples via Squared Euclidean Distance method. The results showed that: 1) Thirteen tobacco samples were clustered into two categories. 2) CategoryⅠ included samples with moisture content ranging from 9.00%-12.50%, their volatile aroma component contents and sensory quality were close to those of normal dried cut tobacco; the moisture contents of the samples in Category Ⅱ were less than 9.00%, their volatile aroma component contents and sensory quality changed significantly. The results validated the feasibility of clustering over-dried cut tobacco with different moisture contents into two categories according to their volatile aroma component contents.关键词
叶丝干燥/“干头干尾”烟丝/挥发性香味物质/主成分分析/聚类分析Key words
Cut tobacco drying/Over-dried cut tobacco produced in start and finish stages of a drying process/Volatile aroma component/Principal component analysis/Cluster analysis分类
轻工纺织引用本文复制引用
刘泽,何邦华,杨蕾,唐军,周冰,侯英,朱勇,邱昌桂..“干头干尾”烟丝挥发性香味物质的主成分聚类分析[J].烟草科技,2015,(2):47-52,6.基金项目
云南中烟工业有限责任公司技术中心资助项目“卷烟生产工艺质量评价体系的建立”（HYHH2012GY02）、“多级加料技术在云烟系列品牌中的应用研究”（HYHH2012CP05）。 （）
