<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Freeze-dried and corresponding conventionally cured tobacco have been subjected to comparative studies. It is shown that the cigarettes manufactured from the freeze-dried tobacco have a noticeably lower average weight due to the higher filling capacity of this tobacco and that this has little or no influence on the taste, but affects the burning rate considerably. Determinations of the amounts of total particulate matter, dry condensate, and nicotine in the smoke shows that these are about half in the case of the freeze-dried material when an equal number of cigarettes are smoked; they differ much less when an equal amount of tobacco or an equal number of puffs are used as the bases for comparison. The "phenol" content of the smoke is however in all cases found to be noticeably lower for the freeze-dried cigarettes. Examination of the ciliotoxic effect of the smoke from the two types of tobacco on rabbit trachea in vitro shows that there is no significant difference between the number of puffs required to achieve complete ciliostasis. A detailed gas chromatographic-mass spectrometric study using a high resolution glass capillary column and computerised data-acquisition demonstrates that there are no significant differences between the gas phases of the smoke derived from the two differently treated tobaccos. </p></abstract>

Freeze-dried and corresponding conventionally cured tobacco have been subjected to comparative studies. It is shown that the cigarettes manufactured from the freeze-dried tobacco have a noticeably lower average weight due to the higher filling capacity of this tobacco and that this has little or no influence on the taste, but affects the burning rate considerably. Determinations of the amounts of total particulate matter, dry condensate, and nicotine in the smoke shows that these are about half in the case of the freeze-dried material when an equal number of cigarettes are smoked; they differ much less when an equal amount of tobacco or an equal number of puffs are used as the bases for comparison. The "phenol" content of the smoke is however in all cases found to be noticeably lower for the freeze-dried cigarettes. Examination of the ciliotoxic effect of the smoke from the two types of tobacco on rabbit trachea in vitro shows that there is no significant difference between the number of puffs required to achieve complete ciliostasis. A detailed gas chromatographic-mass spectrometric study using a high resolution glass capillary column and computerised data-acquisition demonstrates that there are no significant differences between the gas phases of the smoke derived from the two differently treated tobaccos.

Tobacco Chemistry: 4: ChemicaI and Ciliotoxic Studies of Smoke from Freeze-Dried Tobacco

Chemical Research Department, Swedish Tobacco Co., Stockholm, Sweden

Institute of Analytical Chemistry, University of Stockholm, Stockholm, Sweden

Institute of Hygiene, University of Uppsala, Uppsala, Sweden

Department of Biological and Agriculturat Engineering, North Carolina State University,Raleigh, N. C., USA

Contributions to Tobacco & Nicotine Research

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Freeze-dried and corresponding conventionally cured tobacco have been subjected to comparative studies. It is shown that the cigarettes manufactured from the...

Tobacco Chemistry: 4: ChemicaI and Ciliotoxic Studies of Smoke from Freeze-Dried Tobacco

Publicado en línea: 19 jul 2014

Páginas: 41 - 50

Recibido: 23 dic 1970

DOI: https://doi.org/10.2478/cttr-2013-0265

© Beiträge zur Tabakforschung International

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.