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以烤烟（NicotianatabacumL.）为试材，研究了陈代期间烟叶香气物质和主要化学成份含量的变化。结果表明，随着陈化时间的延长．烟叶中大多数香气物质成分的含量持续上升，尤其是低分子量的成份上升明显；而还原精、烟碱、总氮等化学成份的含量则逐渐下降。在不同的陈化阶段．烟叶中香气物质和化学成份在12个月以前含量变化最为激烈，之后趋于缓慢。对陈化期间烟叶的烟气特性进行了鉴定，结果表明，陈化时间在18～24个月时烟叶的内在品质最好。
Tobacco (Nicotiana tabacum L.) was used as experimental material to study the changes of aroma components and main chemical components of tobacco leaves during the Chen generation. The results show that with the aging of the time. The contents of most aroma components in tobacco leaves continued to rise, especially in low molecular weight components increased significantly; and reductant, nicotine, total nitrogen and other chemical components decreased. In different stages of aging. Tobacco aroma substances and chemical composition in the 12 months ago the most intense changes in content, then tends to be slow. The flue gas characteristics of tobacco during the aging were identified, the results show that the aging time of 18 to 24 months, the inner quality of tobacco leaves the best.