Effect of the Amount of Tobacco per Cigarette on Smoke Composition when Smoking 3R4F Reference Tobacco and a Commercial Tobacco Brand with and without a Catalyst

The effect of the weight of tobacco per cigarette (WTC) on the mainstream smoke of reference (R) and commercial (F) cigarettes and the effect of the addition of an SBA-15 catalyst has been studied. The yield of total particulated matter (TPM) obtained from the reference tobacco, with and without catalyst, is decreased as WTC increases, but the results for the commercial cigarettes show a maximum for TPM and CO at the medium WTC value. The highest yields of the different chemical families of compounds appearing in TPM extracted from filters (TPM-F) from F and R cigarettes, and in TPM from the traps after filters (TPM-T) from R, have been obtained at the intermediate WTC, whereas for TPM-F from reference cigarette + catalyst (RC) and TMP-T from F and RC, a decreasing trend as WTC increases is observed. Interesting reductions have been obtained in the presence of catalyst, especially for the carbonyls group in TPM-F and for aromatics in TPM-T.Financial support for this investigation has been provided by the Spanish “Comisión de Investigación Científica y Tecnológica” of the “Ministerio de Ciencia e Innovación” and the European Community (FEDER refunds) (CTQ2008-01023/PPQ and MAT2011-24991), and PROMETEO/2012/015