机构地区:[1]河南农业大学烟草学院,河南郑州450046 [2]河南省烟草公司三门峡市公司,河南三门峡472000 [3]河南省烟草公司,河南郑州450018
出 处:《南方农业学报》2023年第8期2289-2298,共10页Journal of Southern Agriculture
基 金:河南省自然科学基金项目(232300421257);河南省烟草公司三门峡市公司技术创新项目(2022411200200004x)。
摘 要:【目的】基于不同油分档次烟叶化学成分和感官质量的差异,构建综合赋权评价体系,建立不同油分档次烟叶的质量评价方法,对不同油分烟叶的可用性进行评价,为高油分优质烟叶的质量鉴评及利用提供参考依据。【方法】以河南省三门峡市灵宝县全叶位覆盖的不同油分档次(少、稍有、有和多)132份云烟87烟叶样本的化学成分和感官质量指标为数据集,利用隶属度函数对化学成分指标和感官质量指标赋值,通过主成分赋权法、变异系数赋权法、主观赋权法和综合赋权法,对各指标重新赋权,从而评价不同油分烟叶的可用性。【结果】随烟叶油分档次由少到多,总氮含量、氯含量和氮碱比总体上呈降低趋势,少油分烟叶的总氮含量较其余油分档次烟叶高5.15%~46.41%;总糖、还原糖、总植物碱和钾含量呈升高趋势,多油分烟叶的总糖和还原糖含量较其余油分档次烟叶分别高12.20%~28.96%和10.09%~30.64%;除总植物碱和氮碱比指标外,烟叶油分与其余7项化学指标均呈显著(P<0.05)或极显著(P<0.01,下同)相关。随烟叶油分档次由少到多,感官质量各项指标得分及总分均呈升高趋势,烟叶油分与各感官质量指标得分均呈极显著正相关。综合赋权法相较于单一赋权法,提高了不同油分档次烟叶可用性指数的区分度,随烟叶油分档次降低,可用性指数明显下降,多油分烟叶可用性指数最高(0.644~0.794)。相关分析结果表明,综合赋权法与各单一赋权法结果强相关。【结论】基于烟叶的化学成分指标和感官质量指标构建的综合赋权法,可对不同油分档次烟叶可用性进行科学有效地评价,为后续高油分烟叶的生产鉴评提供一种质量评价方法。【Objective】Based on the differences of chemical composition and sensory quality of tobacco leaves at different oil levels,a comprehensive weight evaluation system was established,and the quality evaluation methods of tobacco leaves with different oil levels were established to evaluate the availability of tobacco leaves with different oil levels,which provided reference for the quality evaluation and utilization of high-oil and high-quality tobacco leaves.【Method】The chemical composition and sensory quality indicators of 132 samples of Yunyan 87 tobacco leaves at different oil levels(a little,less oily,oily and rich)covered by the full leaf position in Lingbao,Sanmenxia,Henan tobacco area were used as the data set,and the chemical and sensory quality indicators were assigned values using the affiliation function,and then the indicators were re-assigned weights through the principal component weighting method,coefficient of variation weighting method,subjective weighting method and comprehensive weighting method,so as to evaluate the availability of tobacco leaves at different oil levels.【Result】With the leaf oil level from a little to rich,with an overall decreasing trend of total nitrogen,chloride and nitrogen to alkali ratio,the total nitrogen content of a little oil level tobacco leaves was 5.15%-46.41%higher than that of tobacco leaves at other oil levels;and total sugar,reducing sugar,total alkaloids and potassium content showed an increasing trend,the contents of total sugar and reducing sugar in rich oil level tobacco leaves were 12.20%-28.96%and 10.09%-30.64%higher than those in tobacco leaves at other oil levels respectively.Except for total plant alkaloids and nitrogen alkali ratio indicators,the oil level of tobacco leaves was significantly(P<0.05)or extremely significantly(P<0.01,the same below)correlated with the other seven chemical indicators.With the leaf oil level from a little to rich,the scores of sensory quality indicators and total scores showed an increasing trend,and the oil lev
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