Different Analysis of the Composition and Contents of Neutral Aroma Components in Various Aroma Style and Areas Flue-cured Tobacco Leaves

Purposes The research aimed to understand the characteristics and differences of composition and contents of neutral aroma components in typical enriched aroma, intermediate aroma and clear aroma style tobacco and corresponding areas.Method Totally 379 C3F leaf samples from the main tobacco-planting regions in Henan, Guizhou and Yunnan Province were taken. The contents of neutral aroma components were determined with GC-MS methods. The characteristics and differences were analyzed with multiple comparison and systematic cluster.Results The enriched aroma tobacco had the significantly highest with products degraded by carotene and phenylalanine. Clear aroma tobacco had the extremely significantly highest with products degraded by cembrane, and intermediate and clear aroma tobacco had the remarkable significant highest with maillard reaction products and neophytadiend. The Ye County, Pingba and Wenshan had the very significant highest contents of total aroma components corresponding to the enriched, intermediate and clear. Coefficients of variation of products degraded by phenylalanine and cembrane were larger in different aroma style and areas.Conclusion The characteristics and differences of neutral aroma components were summarized in different aroma and areas, and provided theoretical foundation for the tobacco leaves allocation and the cigarette prescription design.