不同调制方式对万源晒烟化学成分含量的影响

Effects of curing methods on contents of chemical components in Wanyuan sun-cured tobacco

为探究适宜万源晒烟新品种的调制方式,以四川省万源市新品种"万毛9号"为材料,研究了不同调制方式对烟叶品质、安全性的影响。结果表明,调制方式对烟叶化学成分、感官品质有显著影响。晾制下,烟叶总糖、还原糖含量(质量分数)较低,烟碱转化率、降烟碱和N-亚硝基降烟碱(NNN)的含量(质量分数)、4种烟草特有亚硝胺(TSNAs)总量较高,烟叶杂气较轻。折晒下,4种TSNAs总量显著降低,烟叶安全性较高,且吸食余味较好。索晒下,烟叶香味物质总量及重要香味成分含量显著升高,烟叶风格较为突出、香气质较好,感官质量较优。

To develop a curing method suitable for the sun-cured tobacco in Wanyuan,a new variety＂Wanmao No.9＂from Wanyuan was used to study the effects of curing methods on the quality and toxicant levels of suncured tobacco leaves. The results showed that curing methods significantly influenced the chemical components and sensory quality of tobacco leaves. In air-cured tobacco leaves,the contents of total sugar and reducing sugar were lower,the nicotine conversion rate and the contents of nornicotine,NNN and the total content of four TSNAs were higher,the offensive odor of leaves was less. In tobacco leaves treated by sun-curing with pair of bamboo grates,the total contents of four TSNAs significantly decreased,the health risk index of leaves was lower,and the aftertaste was comfortable. In tobacco leaves treated by sun-curing using strings,the contents of total aroma components and main aroma components significantly increased,the leaf quality was outstanding with better aroma quality and sensory quality.