回潮工序及加工强度对典型烟叶模块香韵及杂气的影响

Influences of conditioning process and processing intensity on aroma note and offensive odor of blended tobacco with typical stylistic character

为了解和掌握回潮工序(松散回潮和真空回潮+松散回潮)不同加工强度对具有典型风格特征的云南烟叶模块、福建烟叶模块、贵州烟叶模块、河南烟叶模块和巴西烟叶模块等5种典型模块香韵及杂气的影响,采用同一制丝试验生产线相同加工强度对5种模块进行了试验和感官特性评价分析。结果表明:(1)5种典型模块经松散回潮或真空回潮+松散回潮工序处理后,均引起甜香有一定程度的增加;云南模块焦香、坚果香明显增加,清香、花香有所减少;福建模块坚果香有所增加,清香在较高处理强度后则有所减少;贵州模块焦香、坚果香明显增加,处理强度过大会引起清香减少;巴西模块焦香略有增加,高强度松散回潮和真空回潮预处理会引起树脂香减少。(2)5种典型模块经松散回潮或真空回潮+松散回潮工序处理后,均引起生青气明显降低,处理强度过大会引起枯焦气增大;云南模块木质气也明显降低。

In order to investigate the influences of conditioning process（loosening and conditioning or vacuum preconditioning ＋ loosening and conditioning） and processing intensity on the aroma note and offensive odor of five blended tobacco modules（Yunnan,Fujian,Guizhou,Henan and Brazil modules） with typical stylistic character,the five modules were tested on a pilot processing line and exposed to the same processing intensity,then their sensory quality was evaluated.The results showed that： 1） The sweetness scent of all the five modules increased to a certain extent; the burnt scent and nutty scent of Yunnan module obviously increased,its fresh scent and floral scent decreased slightly; the nutty scent of Fujian module increased,its fresh scent decreased slightly after higher intensity processing; the burnt scent and nutty scent of Guizhou module increased obviously,while over intensive processing reduced the fresh scent of the same; the burnt scent of Brazil module increased slightly,high intensity loosening and conditioning or vacuum preconditioning reduced the resin scent of the same.2） The raw green odor of all the five modules decreased,over intensive processing raised their scorched odor; and the woody odor of Yunnan module decreased obviously.