Characterization of flavor transfer during smoking of cigarettes with flavor capsules and aromatized tobacco cigarettes using SPME-GCMS
Flavored tobacco has been used in cigarettes for many decades, but nowadays consumption of flavor capsule cigarettes is increasing in South American markets. Flavor capsules give the smoker the option of choosing to smoke the cigarette with or without flavor or to choose between two or more different flavors.
The aim of the present work is to analyze if there is a difference in flavor delivery between flavor capsules and aromatized tobacco to cigarette smoke.
Ten brands of cigarettes with flavor capsules and seven brands of aromatized tobacco cigarettes were used to test how flavor components transfer to smoke after smoking. The flavors were analyzed on the tobacco or in the liquid within the capsule directly with a SPME fiber to identify their components.
Two cigarettes of each type were smoked with an intensive regime, using Cambridge filters and methanol traps at -20 °C after the cigarette holder to capture flavor components.
The Cambridge filter and the methanol were put in different flasks and the flavor components were captured with a solid phase microextraction (SPME). The SPME fiber was analyzed by GC-MS and spectrums were analyzed manually with Palisade and National Institute of Standards and Technology (NIST) libraries and with the Automated Mass Spectral Deconvolution and Identification System (AMDIS) using the Varian library.
Flavor components were retained principally in the Cambridge filter.
Flavor capsules analyzed contained spearmint, peppermint, a mixture of both, red fruits with menthol, only menthol, and other fruit flavors. Aromatized tobacco contained chocolate, coffee, tea, menthol, applemint and red fruit flavors.
Between one and thirty compounds were identified in the different flavors, and an average of 40 % of them were identified as transferred to the smoke in the flavor capsule cigarette and also in the flavored tobacco cigarette.
No differences in flavor components delivery between flavor capsules and aromatized tobacco were found, both systems being equivalent in transferring flavor from the cigarette to the smoke.