Search Results

317 results

  1. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2004, 21-4, p. 205-9., ISSN.0173-783X

    Dioxin levels in mainstream smoke from cigarettes with different TPM deliveries

    SMITH C.J.; SYKES D.C.; CANTRELL D.W.
    R.J. Reynolds Tobacco Company, Winston-Salem, NC, USA
    The presence of dioxin-like compounds, such as chlorinated dibenzodioxins, chlorinated dibenzofurans and chlorinated biphenyls, in mainstream cigarette smoke has been investigated for seven cigarette brands covering a range of 'tar' deliveries ...
  2. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2004, 21-4, p. 223-33., ISSN.0173-783X

    Effect of water regime and nitrogen fertilisation on growth dynamics, water status and yield of Burley tobacco (Nicotiana tabacum L.)

    RUGGIERO C.; ANGELINO G.; ASCIONE S.
    University of Naples ''Federico II'', Dept. of Agricultural Engineering and Agronomy, Portici, Naples, Italy.
    The results of a two-year research project into burley tobacco are reported and discussed. Three irrigation levels (40, 80 and 120% restitution of evapotranspiration (ET)) were factorially combined with four levels of nitrogen fertilisation (0, 80, 160 ...
  3. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2004, 21-4, p. 240-9., ISSN.0173-783X

    The effect of inhalation volume and breath-hold duration on the retention of nicotine and solanesol in the human respiratory tract and on subsequent plasma nicotine concentrations during cigarette smoking

    ARMITAGE A.K.; DIXON M.; FROST B.E.
    Sycamore Lodge, Abbey Road, Knaresborough, North Yorkshire, UK
    The influence of inhalation depth and breath-hold duration on the retention of nicotine and solanesol in the human respiratory tract and on nicotine uptake was studied in ten cigarette smokers. In a first series of experiments, the subjects took seven ...
  4. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-5, p. 258-63., ISSN.0173-783X

    Investigations of isogenomic alloplasmics of flue-cured tobacco Nicotiana tabacum cv. Wislica

    BERBEC A.; LASKOWSKA D.
    Institute of Soil Science and Plant Cultivation, Dept. of Special Crops, Pulawy, Poland.
    Cytoplasms of fifteen wild Nicotianae and a male sterile cytoplasm (ems) from N. tabacum were bred into the genome of a standard Polish flue-cured cultivar Wislica. The sixteen iso-genomic alloplasmics were compared for expression of male sterility and ...
  5. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-5, p. 280-5., ISSN.0173-783X

    The effects of filter ventilation on flavor constituents in cigarette smoke

    JING Y.; GONG C.; XIAN K.
    Henan Agricultural University, College of Agronomy, Zhengzhou, China
    The deliveries of 20 added flavor constituents, total particulate matter (TPM), nicotine, 'tar' carbon monoxide and water in cigarette mainstream smoke were studied when filter ventilation was 0, 10%, 30%, 50% and 70%, respectively. The flavor ...
  6. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-6, p. 321-30., ISSN.0173-783X

    Formation of tobacco-specific nitrosamines (TSNA) during air-curing: conditions and control

    STAAF M.; BACK S.; WIERNIK A.
    Swedish Match North Europe Div., Research & Analysis, Stockholm, Sweden
    The present review deals with studies performed during several consecutive years on the effect of air-curing on tobacco-specific nitrosamine (TSNA) formation and quality of tobacco. Temperature, relative humidity, water content and water activity data ...
  7. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-6, p. 331-44., ISSN.0173-783X

    Distribution of polycyclic aromatic hydrocarbons between the particulate and the gas phase of mainstream cigarette smoke in relation to cigarette technological characteristics

    KALAITZOGLOU M.; SAMARA C.
    Aristotle University, Environmental Pollution Control Laboratory, Dept. of Chemistry, 541 24 Thessaloniki, Greece.
    Particulate- and gas-phase polycyclic aromatic hydrocarbons (PAHs) were determined in the mainstream smoke (MSS) of 59 manufactured cigarette brands (commercially available brands of unknown tobacco and blend type) with variable 'tar' yields and ...
  8. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-6, p. 345-49., ISSN.0173-783X

    Changes in anatomic structure of Burley tobacco under the influence of irrigation and fertilization

    PELIVANOSKA V.; FILIPOSKI K.; TRAJKOSKI J.
    Tobacco Institute, Prilep, Macedonia.
    Investigations were made with the new burley variety B 2/93, bred in the Tobacco Institute Prilep, on alluvial soil type in the producing region of Ohrid and Struga. Four rates of nitrogen fertilizer (55, 100, 150, and 200 kg ha-1) and a constant rate of ...
  9. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-6, p. 350-57., ISSN.0173-783X

    Evaluation of combustion of a shredded tobacco bed using a reactor to produce reverse smolder:Influence of properties related to mass transfer on combustion of the bed

    NAGAO A.; YAMADA Y.; MIURA K.
    Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan.
    The combustion mechanism of a shredded tobacco bed during puffing has been investigated. To evaluate changes in the burning rate of the shredded tobacco bed in the region close to the paper char-line, an experimental study was carried out on the reverse ...