豫中浓香型烤烟香气质量与中性致香成分关系分析

为确定影响香气质、香气量的中性致香成分的物质基础,采用偏相关分析、通径分析和逐步回归的分析方法,研究了烤烟香气质、香气量与中性致香成分的关系。结果表明,建立的香气质、香气量2个回归方程经显著性测验均达到极显著水平。烟叶中的18种中性致香成分对香气量、香气质直接影响各不相同。香气质受巨豆三烯酮3直接正面影响最大,而受巨豆三烯酮2直接负面影响最大;香气量受巨豆三烯酮2直接正面影响最大,而受巨豆三烯酮3直接负面影响最大。对香气质、香气量起直接正面影响作用的有巨豆三烯酮1、苯乙醇、糠醛以及新植二烯,对香气质、香气量起直接负面影响作用的有假紫罗兰酮、苯甲醇、2-乙酰基吡咯以及茄酮。

Analysis of Relationships between Neutral Aroma Constituents and Aroma Concentration and Quality in Flavor Enriched Flue-cured Tobacco in Central Henan Province

To determine material basis for the impact of aroma concentration and quality of flue-cured tobacco,using partial correlation analysis,path analysis,and stepwise regression analysis,the authors carried out quantitative relations analysis between neutral aroma constituents and concentration and quality of aroma in flue-cured tobacco.The results showed that regression model of quality of aroma and concentration of aroma of great significance were established,and both of these were significant at 1% level.16 kinds of representative neutral aroma constituents in flue-cured tobacco had different direct influence on quality and concentration of aroma.Megastigmatrienone-3 had the greatest direct positive influence on concentration of aroma,megastigmatrienone-2 had the greatest direct negative influence on quality of aroma.Megastigmatrienone-2 had the greatest direct positive influence on concentration of aroma,β-damascenone had the greatest direct positive negative influence on concentration of aroma.Megastigmatrienone-1,phenylethanol,furfural and neophytadiene had direct influence on quality of aroma.Pseuaoinonone,benzaldehyde,2-acetyl pyrrole and solanone had direct negative influence on concentration of aroma.