不同臭氧浓度对下部烟叶化学成分和香味物质的影响

　　摘 要：为研究臭氧对烟叶内在品质的影响，用不同浓度的臭氧对许昌烟区下部烟叶进行处理，检测了化学成分和香气物质并进行了感官评价。结果表明，经过不同浓度臭氧处理后，烟叶水溶性总糖和还原糖含量增加，糖碱比升高；烟气柔细度提高，杂气减轻，刺激性降低，劲头略减小，抽吸品质有所改善。经过臭氧处理后，烟叶新增19种香味物质。硬脂酸、壬醛、癸醛、棕榈酸、肉豆蔻酸和亚麻酸6种香气物质检出量随臭氧浓度升高呈增加趋势，巨豆三烯酮和苯甲醛则相反。综合认为，经臭氧处理后烟叶化学成分趋于协调，香味物质更加丰富，抽吸品质改善。其中以403.859 mg/L臭氧处理效果最佳。
　　关键词：臭氧浓度；香味物质；常规化学成分；感官评定
　　中图分类号：TS41+1 文章编号：1007-5119（2016）06-0090-05 DOI：10.13496/j.issn.1007-5119.2016.06.016
　　Effects of Different Concentrations of Ozone Treatment on Aroma Components and Conventional Chemical Components of Lower Tobacco Leaves
　　ZHENG Kai1， FAN Lei1， ZHAO Shanshan2， XU Heng3， LUO Zhenbao4，
　　LI Haoliang3*， WANG Chong2， XU Chunping2
　　（1. Xuchang Cigarette Factory， China Tobacco Henan Industrial Co.， Ltd.， Xuchang， Henan 461000， China； 2. College of Food and Biological Engineering， Zhengzhou University of Light Industry， Zhengzhou 450002， China； 3. Technical Center of China Tobacco Henan Industrial Co.， Ltd.， Zhengzhou 450016， China； 4. Bijie Tobacco Company of Guizhou Province， Bijie， Guizhou 551700， China）
　　Abstract： To investigate the effect of different concentrations of ozone on the internal quality of tobacco leaves， lower tobacco leaves were used as the experimental material and treated by different concentrations of ozone. Sensory evaluation， conventional chemical components determination and aroma components determination were carried out. The sensory evaluation showed that smoking quality of tobacco leaves was improved after different ozone concentration treatments. The effect of high ozone concentration （403.86 mg/L） was the optimal， with better smoothness of smoke， less offensive taste， and moderate strength. After tobacco leaves were treated by high concentrations of ozone， tobacco aroma components were more abundant， the types and contents of the aroma components were changed， and 19 kinds of new flavor components were generated， overall aroma effect was good. The contents of acids， alcohols and aldehydes esters also reached the highest value. The contents of total sugar and reducing sugar in the three groups were higher than that in the control group. After treated with high concentration of ozone， the contents of water-soluble total sugar， reducing sugar and sugar/nicotine ratio in the tobacco leaves reached the highest values. Based on the above-mentioned results， after treated by high concentration of ozone， the quality of tobacco smoke， the chemical and aroma quality of tobacco leaves were the best among different treatments.

相关热词搜索：烟叶 臭氧 浓度 香味 化学成分