调制方法对吉林晒红烟品质的影响

Effects of curing methods on quality of dark sun-cured tobacco in Jilin

为确定吉林晒红烟产区适宜的调制方法,进一步提高烟叶的品质和安全性,分析了塑料大棚晒制、塑料薄膜覆盖晒制、传统晒制等调制方法对调制后晒红烟烟叶经济性状、常规化学成分、香味物质、烟草特有亚硝胺(TSNAs)及感官品质的影响。结果表明,塑料大棚晒制能显著提高晒红烟单叶质量、产量及产值,高等级烟叶比例及均价指标以塑料大棚晒制优于塑料薄膜覆盖晒制和传统晒制;塑料大棚晒制能显著降低晒红烟淀粉含量(质量分数),提高糖含量和糖碱比;烟叶中性、碱性香味物质含量以及感官品质均以塑料大棚晒制最优,常规晒制最劣;利用塑料大棚晒制的烟叶TSNAs含量显著低于其他两种调制方法。因此,吉林晒红烟产区适宜的调制方法为塑料大棚晒制。

To determine a suitable curing method for the dark sun-cured tobacco planted in Jilin Province and to improve its quality,the influences of three curing methods,including sun-curing in a plastic greenhouse,sun-curing with film mulching and traditional sun-curing,on the leaf economic traits,routine chemical components,aroma substances,tobacco-specific nitrosamines(TSNAs)and sensory quality were investigated.The results showed that the single-leaf weight,yield and output value of the dark sun-cured tobacco leaves were significantly increased by sun-curing in the plastic greenhouse.The proportion of high-grade leaves and the average price of tobacco cured with this method were higher than those cured by the other two methods.The starch content was significantly decreased,while the sugar content and the ratio of sugar/nicotine were significantly increased for the dark sun-cured tobacco leaves cured in the plastic greenhouse.The contents of neutral and alkaline aroma substances and sensory quality of tobacco leaves cured in the plastic greenhouse were the highest,and those cured by traditional method were the lowest.The TSNAs contents in the treated leaves were also significantly lower under the plastic greenhouse sun-curing than those of the other two methods.