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中国农学通报 ›› 2024, Vol. 40 ›› Issue (34): 157-164.doi: 10.11924/j.issn.1000-6850.casb2024-0425

• 食品·营养·检测·安全 • 上一篇    

基于OPLS-DA的江西上部烤烟化学成分可用性模糊综合评价

焦绍赫1(), 王念磊1, 林小菲2, 李卓1, 丁永亮1, 张雄峰1, 胡蓉花1   

  1. 1 江西省烟草科学研究所,南昌 330000
    2 江西省烟草公司赣州市公司,江西赣州 341000
  • 收稿日期:2024-06-27 修回日期:2024-10-17 出版日期:2024-12-05 发布日期:2024-12-03
  • 作者简介:

    焦绍赫,男,河南漯河人,农艺师,硕士,主要从事烟草质量分析评价。通信地址:330000 江西省南昌市西湖区洪城路298号,E-mail:

  • 基金资助:
    江西省烟草公司重点科技项目“江西特色烟叶质量跟踪体系的构建”(赣烟司202101014); 江西省烟草公司重点科技项目“提升峡江烟叶质量的关键技术研究与应用”(赣烟司2020010); 江西省烟草公司重点科技项目“江西烟叶化学成分近红外定量分析体系的建立”(赣烟司2020008)

Fuzzy Comprehensive Evaluation of Chemical Components Availability of Upper Tobacco in Jiangxi Based on OPLS-DA

JIAO Shaohe1(), WANG Nianlei1, LIN Xiaofei2, LI Zhuo1, DING Yongliang1, ZHANG Xiongfeng1, HU Ronghua1   

  1. 1 Tobacco Science Research Institute of Jiangxi Province, Nanchang 330000
    2 Ganzhou Company of Jiangxi Tobacco Company, Ganzhou, Jiangxi 341000
  • Received:2024-06-27 Revised:2024-10-17 Published:2024-12-05 Online:2024-12-03

摘要:

为探究一种便捷、有效对烤烟上部叶化学成分工业可用性进行评价的方法,运用正交偏最小二乘(OPLS-DA)建立主要化学成分与感官质量的判别模型后结合模糊数学理论建立评价方法,对2023年江西省上部烟叶样品进行分类。结果表明,江西上部叶样品总糖(26.98%)、总氮(2.04%)、钾(2.46%)含量适中,糖碱比(6.60)偏低,氯含量在产区间波动较大;化学成分指标对感官质量影响的重要性由高到低为糖碱比、烟碱、还原糖、氯、总糖、总氮、氮碱比、淀粉、钾。本研究上部叶样品总数为75个,评价为Ⅰ级的样本33个,占比44.0%;评价为Ⅱ级的30个,占比40.0%;评价为Ⅲ级的12个,占比16.0%。本研究以感官评吸质量为导向,通过建立化学成分的模糊综合评价模型对烟叶进行分类,为上部叶工业可用性评价提供了参考。

关键词: 上部烤烟, 主要化学成分, 正交偏最小二乘判别, 模糊综合评价, 感官质量, 模糊数学

Abstract:

To explore a convenient and effective method for evaluating the industrial availability of chemical components in the upper leaves of flue-cured tobacco, orthogonal partial least squares (OPLS-DA) was used to establish a discriminant model between the main chemical components and sensory quality. Subsequently, combining fuzzy mathematics theory to establish an evaluation method, and the upper tobacco samples in Jiangxi Province in 2023 were classified based on this method. The results showed that the total sugar (26.98%), total nitrogen (2.04%), and potassium (2.46%) contents in the upper leaf samples of Jiangxi flue-cured tobacco were moderate, the sugar/alkali ratio (6.60) was low, and the chlorine content fluctuated greatly according to different production areas. The order of importance of chemical composition on sensory quality was sugar/alkali ratio, nicotine, reducing sugar, chlorine, total sugar, total nitrogen, nitrogen alkali ratio, starch, and potassium. In this study, 75 upper leaf samples were selected, among these, 33 samples were evaluated as grade I, accounting for 44.0%, 30 samples were evaluated as grade II, accounting for 40.0%, 12 samples were evaluated as grade III, accounting for 16.0%. This study was directed by sensory evaluation of smoking quality and established a fuzzy comprehensive evaluation model by chemical composition to classify tobacco leaves, providing reference for industrial usability evaluation of upper leaves.

Key words: upper leaves of flue-cured tobacco, main chemical components, OPLS-DA, fuzzy comprehensive evaluation, sensory quality, fuzzy mathematics