以我国云南、河南、贵州、四川等烟区烤烟样品为试验材料,对54个C3F等级烟叶的香气特性、口感特性和风格特征等感官评吸质量指标进行了量化评价,并运用简单相关、典型相关和逐步回归分析等统计方法对感官质量与风格特征各指标间的相关性进行了分析.简单相关分析和典型相关分析结果表明,感官质量各指标与风格彰显程度、浓度和劲头存在极显著或显著相关关系.逐步分析结果表明,透发性和杂气是风格彰显程度的主要影响因子,其量化关系式为Y1=0.551X3+0.770X4-1.905,达极显著水平;透发性是浓度的主要影响因子,其量化关系式为Y2=0.605X3+2.612,达极显著水平;透发性、香气量和余味是劲头的主要影响因子,其量化关系为Y3=0.536X3-0.610X7+0.426X2+3.959,达极显著水平.综上,通过感官质量指标来预测烟叶的风格特征,对于烟叶质量评价体系的构建有一定的参考意义.
The tobacco samples from Yunnan,Henan,Guizhou,Sichuan and other tobacco-growing regions in China were used as experimental materials,and the sensory quality indicators(aroma characteristics,taste characteristics,and style features)of 54 C3F grade tobacco leaves were quantitatively evaluated.Simple correlation,canonical correlation and stepwise regression analysis were used to analyze the correlation between sensory quality and style characteristics.The results of simple correlation analysis and typical correlation analysis showed that highly significant or significant correlations between the sensory quality indicators and style emphasis,concentration and strength.The stepwise analysis results showed that translucency and impurities were the main influencing factors of style emphasis,with a quantitative relationship of Y1=0.551X3+0.770X4-1.905,reaching a highly significant level.Translucency was the primary influencing factor of concentration,with a quantitative relationship of Y2=0.605X3+2.612,reaching a highly significant level.Translucency,aroma quantity,and aftertaste were the main influencing factors of strength,with a quantitative relationship of Y3=0.536X3-0.610X7+0.426X2+3.959,reaching a highly significant level.In conclusion,the prediction of style characteristics of tobacco leaves by sensory quality indexes has certain reference significance for the construction of tobacco quality evaluation system.