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206 results

  1. Beitr. Tabakforsch. Int., 1998, 18-l, p. 47-8., ISSN.0173-783X

    Conference report: Systemic acquired resistance (SAR): A meeting organized by the pesticide group of the Society of the Chemical Industry, March 10, 1998, London, UK

    EBERHARDT H.-J.
    The following presentations are summarized: Lucas, J. A. (Bristol University, UK). Plant immunization from myth to SAR; Kogel, K.H. (University of Giessen). Cytological analysis of the SAR response of cereals to powdery mildew fungus; Neuenschwander, U. ...
  2. Beitr. Tabakforsch. Int., 1999, 18, 4, p. 147-63., ISSN.0173-783X

    The pyrolysis of tobacco additives as a means of predicting their behaviour in a burning cigarette

    TOTESBURY S.; DIGARD H.; WILLOUGHBY L.
    British American Tobacco, Group R&D, Southampton, UK
    In order to understand the behaviour of tobacco additives in the burning cigarette it is important to know whether they transfer intact to the smoke or whether there is any decomposition during smoking. There are practical problems in comparing the ...
  3. Beitr. Tabakforsch. Int., 1999, 18, 5, p. 213-22., ISSN.0173-783X

    The quality estimation of different tobacco types examined by headspace vapor analysis

    HASEBE H.; SUHARA S.
    Japan Tobacco Inc., Tobacco Science Research Lab., Yokohama, Kanagawa, Japan.
    In order to judge the quality of tobacco leaf, it is necessary to conduct sensory smoke evaluations. However, these are subjective and the results are difficult to quantify. Therefore, we have attempted to establish a quantitative method for evaluating ...
  4. Beitr. Tabakforsch. Int., 1999, 18-4, p. 131-46., ISSN.0173-783X

    Internal standard-based analytical method for tobacco smoke vapor phase components

    OMORI F.; HIGASHI N.; CHIDA M.
    Japan Tobacco Inc., Tobacco Science Research Lab., Yokohama, Kanagawa, Japan.
    We developed an internal standard-based method to analyze the vapor phase components of mainstream smoke. This method collects vapor phase components from sample cigarettes, which are smoked by a linear automatic smoking machine in a sampling bag. An ...
  5. Beitr. Tabakforsch. Int., 2000, 192, p. 103-13., ISSN.0173-783X

    On the transfer of nicotine from tobacco to the smoker. A brief review of ammonia and "pH" factors

    DIXON M.; LAMBING K.; SEEMAN J.I.
    British American Tobacco, Group R&D, Southampton, UK
    A brief review is presented of the scientific literature on the effects of ammonia compounds, when used as tobacco additives, on the smoke chemistry and bioavailablity of nicotine. The review concludes that ammonia compounds used in the manufacture of ...
  6. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 100, A13

    Short and long-term effects of applying lime in fractions of the full required amount on soil features and on yield and quality of tobacco

    MANDALA L.W.
    ARET, Agricultural Research and Extension Trust, Lilongwe, Malawi
    The fact that most soils in Malawi are acidic has been known for some time and such soils have detrimental effects on tobacco production. Correcting soil acidity is achieved by proper liming regimes with the aim of increasing soil pH and the availability ...