| 基于感官分析技术的烤烟厚度参比样研制 |
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| 引用本文： | 田涛,刘正玲,史波林.基于感官分析技术的烤烟厚度参比样研制[J].中国烟草学报,2019,25(1):39-44. |
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| 作者姓名： | 田涛 刘正玲 史波林 |
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| 作者单位： | 1.河南中烟工业有限责任公司技术中心，河南省郑州市管城回族区经开第三大街9号 450000 |
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| 基金项目： | 昆明初烤烟叶颜色数据库建立及色卡开发应用2016YN02 |
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| 摘 要： | 背景和目的 烟叶评级身份评价时，经常发生不同产区烤烟的身份被描述为同一档次，而其实际身份却不一致的现象。厚度作为身份指标的重要组成部分，其参比样的建立既有利于身份评价，也有助于评级人员统一认识。 方法 依据“感官特性参比样建立一般导则”国家标准，采集厚度范围很广的全国代表性烤烟样品，筛选并初步分为9个不同厚度档次，通过感官分析排序法结合Friedman检验、多重比较与分组、二项式分布等方法，科学调整为7个厚度档次。 结果 经外部评价小组验证，本套厚度参比样档次充足，相邻档次厚度差异合理。基于本参比样对照评价来自河南许昌、重庆黔江和贵州毕节的烤烟厚度，发现比《烤烟》国标更能准确区分不同产地间的厚度差异。结合物理厚度测量，发现本参比样档次间差异充分体现心理物理学定律，符合厚度的人类感知差异，具有可靠的参考依据与实用价值。 结论 所建立烤烟厚度参比样利于统一感官尺度，易于体现区域外观厚度特征差别，可以在烟叶评级工作中加强对厚度特性的感知和定位。
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| 关 键 词： | 烤烟 厚度 感官分析 参比样 |
| 收稿时间： | 2018-03-27 |
Preparation of reference sample of leaf thickness of flue-cured tobacco based on sensory analysis technology |
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| Affiliation: | 1.Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, China2.Yunnan Kunming Municipal Tobacco Company, Kunming 655000, China3.Food and Agriculture Standardization Institute, China National Institute of Standardization, Beijing 100191, China |
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| Abstract: | In tobacco identity evaluation, the identity of flue-cured tobacco from different producing areas is often described as the same grade, even though their actual identity is inconsistent.Thickness is an important part of identity index.The establishment of its reference sample is not only conducive to identity evaluation, but also helpful to the unified understanding of rating personnel.National guidelines for general guidelines were established according to reference samples of sensory characteristics.Representative national flue-cured tobacco samples with a wide range of thickness were collected, screened and preliminarily divided into 9 grades of different thickness.By means of sensory analysis sequencing combined with Friedman test, multiple comparison and grouping, binomial distribution and other methods, seven thickness grades were adjusted scientifically.It has been verified that the thickness of the reference sample is sufficient, and the difference between adjacent grades is reasonable.By using reference samples to evaluate the thickness of tobacco from Xuchang, Qianjiang and Bijie, it was found that the thickness difference between different origins could be more accurately distinguished than the national standard of flue-cured tobacco.By measuring physical thickness, it was found that the difference between levels of reference samples fully reflected the laws of psychological physics, which has a reliable reference and practical value.The conclusions show that the reference sample of the established leaf thickness is beneficial to the unified sensory scale and can easily reflect the difference in the thickness of tobacco from different regions.The perception and positioning of thickness can be enhanced in tobacco leaf grading. |
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