| 不同采收期雪茄烟叶化学成分聚类分析及在分级中的应用 |
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| 引用本文： | 李青常,林北森,刘利平,罗安娜,杨国涛,蔡斌,高华军,叶长文,吕洪坤. 不同采收期雪茄烟叶化学成分聚类分析及在分级中的应用[J]. 烟草科技, 2022, 55(6): 35-41. DOI: 10.16135/j.issn1002-0861.2022.0062 |
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| 作者姓名： | 李青常 林北森 刘利平 罗安娜 杨国涛 蔡斌 高华军 叶长文 吕洪坤 |
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| 作者单位： | 1.中国烟草总公司郑州烟草研究院，郑州高新技术产业开发区枫杨街2号 4500012.中国烟草总公司海南省公司，海口市红城湖路256号 5711993.湖北中烟工业有限责任公司三峡卷烟厂，湖北省宜昌市夷陵区黄金路46号 4431004.国家烟草质量监督检验中心，郑州高新技术产业开发区翠竹街6号 450001 |
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| 基金项目： | 海南省烟草公司重点科技项目“海南雪茄烟叶分级标准研究”201746000027048 |
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| 摘 要： | 为明确不同采收时期雪茄烟叶化学成分含量的差异及在烟叶分级中的作用，以巴西3号雪茄烟叶品种为材料，对不同采收时期的烟叶化学成分进行分析。结果表明，雪茄烟叶化学成分中总植物碱和钾含量(质量分数)与采收时期的相关性达到极显著水平，相关系数分别为0.872**和-0.915**。用总植物碱和钾含量作为聚类因子进行聚类分析，巴西3号不同采收时期的烟叶样品聚类点群数为5个时，组别间的聚类质心均匀且聚类点群间的距离明显，聚类相似性达到95.1%，说明总植物碱和钾含量能较好地反映不同采收时期雪茄烟叶品质间的差异，可作为分级的重要参考指标。雪茄烟叶聚类分组结果显示，烟叶中总植物碱和钾含量与烟叶外观品质中身份指标的关系密切。
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| 关 键 词： | 雪茄烟叶 采收时期 化学成分 聚类分析 |
| 收稿时间： | 2022-01-24 |
Cluster analysis of chemical components in cigar tobacco harvested at different time and its application in leaf grading |
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| LI Qingchang,LIN Beisen,LIU Liping,LUO Anna,YANG Guotao,CAI Bin,GAO Huajun,YE Changwen,Lü Hongkun. Cluster analysis of chemical components in cigar tobacco harvested at different time and its application in leaf grading[J]. Tobacco Science & Technology, 2022, 55(6): 35-41. DOI: 10.16135/j.issn1002-0861.2022.0062 |
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| Authors: | LI Qingchang LIN Beisen LIU Liping LUO Anna YANG Guotao CAI Bin GAO Huajun YE Changwen Lü Hongkun |
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| Affiliation: | 1.Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China2.Hainan Provincial Company of CNTC, Haikou 571199, China3.Sanxia Cigarette Factory, China Tobacco Hubei Industrial Co., Ltd., Yichang 443100, Hubei, China4.China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, China |
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| Abstract: | In order to clarify the different contents of chemical components in cigar tobacco leaves harvested at different time and their roles in tobacco leaf grading, the chemical components in cigar tobacco leaves of cv. Brazil 3 were analyzed. The results showed that the correlation of the mass fractions of total alkaloid and potassium in the leaves with harvest time were extremely significant with the correlation coefficients of 0.872** and -0.915** respectively. Cluster analysis was carried out by taking the contents of total alkaloids and potassium as cluster factors. When the number of clusters was 5, the cluster centroids between groups of cigar tobacco leaves of cv. Brazil 3 harvested at different time were uniform and their distances were obvious with the similarity up to 95.1%, which indicated that the contents of total alkaloids and potassium could reflect the quality differences among the leaves harvested at different time and could be used as important reference indexes in leaf grading. The result of cluster grouping showed that the appearance quality index, body, of cigar tobacco leaves closely related to the contents of total alkaloids and potassium in tobacco leaves. |
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