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In order to use single top flavors with roasted sweet aroma in heated tobacco products for flavor enhancement, puff-by-puff release of six roasted sweet aroma compounds in the aerosols of heated tobacco products was measured using GC-MS. The six aroma components were added into the tobacco rod at 0.01% and 0.05% of tobacco mass, and the puff-by-puff transfer rates were determined. The results showed that: 1) The puff-by-puff releases of the six aroma components in the aerosol of heated tobacco products increased first and then decreased with the puff number. 2) When added at 0.01% and 0.05%, their puff-by-puff transfer rates were between 0.5%-15.6% and 1.0%-9.6%, respectively, and the per puff transfer rate peaked in the third or fourth puff. 3) There was a good linear positive correlation between the total of puff-by-puff transfer rates of the six single flavors in aerosols and the puff number. 4) At the two addition rates, the total transfer rates of the six single flavors in aerosols were between 34.2%-73.1% and 23.3%-63.7% respectively. [ABSTRACT FROM AUTHOR]

In order to investigate the effects of cigarette paper properties on the combustion coal fallout propensity of burning slim cigarette, cigarette paper with different parameters ( grammage, air permeability, hemp pulp content, ash content, burn promoter content and proportion of potassium salts in burn promoter) was selected and the samples of fine cigarette were made. The parameters were set optimization. The results showed that the combustion coal fallout propensity of slim cigarettes decreased rapidly with the increase of paper grammage. The presence of air permeability, hemp pulp content and ash content in cigarette papers was able to promote the fallout propensity of combustion coal, in a content-dependent manner. Meanwhile, air permeability of cigarette paper exhibited a positive correlation to the combustion coal fallout propensity. The change of burn promoter content had no significant effect on reducing the tendency of the fallout propensity of combustion coal, while the excessively high proportion of potassium salts in burn promoter would cause the tendency of the fallout propensity of combustion coal to fall rapidly. The four parameters of air permeability, grammage, burn promoter content and proportion of potassium salts in burn promoter were sorted in descending order of the influence on the combustion coal fallout propensity as below: air permeability > grammage > proportion of potassium salts in burn promoter > burn promoter content. The combustion coal fallout propensity decreased from6. 3% to 2.5% with the optimum cigarette paper parameters of air permeability 50 CU, grammage 34 ⋅ m-2, proportion of potassium salts in burn promoter 50%, burn promoter content 1.5%. [ABSTRACT FROM AUTHOR]