Identification of Main Aroma Compounds in Tobacco Leaves from Southern Anhui Using GC/MS and GC-O

Abstract:

Caramel-like aroma，the unique style of southern Anhui tobacco. The aroma components of tobacco leaves from southern Anhui were extracted with head space-solid phase extraction（HS-SPME） and simultaneous distillation and extraction（SDE） and analyzed by GC/MS and GC-O. A total of 26 and 22 aroma compounds were obtained from SDE and HS-SPME，respectively. The thresholds and odor activity values were subsequently measured and the aroma intensity of aroma compounds were evaluated. Finally，16 significant aroma constituents were obtained including 14odorants with OAV higher than 1，solanone and megastigmatrienone. 4-Vinyl-2-methoxy-phenol showed the highest odor intensity，followed by phenylacetaldehyde and linalool. Furthermore，2-pentylfuran，methyl cyclopentenolone and 2-furfural were suspected the main contributor of caramel-like aroma of southern Anhui tobacco.