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188 results

  1. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2001, 19-7, p. 333-8., ISSN.0173-783X

    Comparative study of leaf surface texture and ability to expand of cured tobacco

    ROHR R.; EBERHARD A.; DELON R.
    Université Claude Bernard Lyon 1, Villeurbanne, France
    Tobacco leaf texture, appreciated by the difference of surface roughness of cured leaves, is studied with light microscopy and scanning electron microscopy (SEM). The leaf texture is obviously determined by the presence or absence of conical cellular ...
  2. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2001, 19-7, p. 339-43, ISSN.0173-783X

    Synthesis of 3-Oxo-α-ionol ethyl carbonate and its conversion to megastigmatrienones in tobacco smoke

    YANG H.; LIU J.; LI K.
    Changsha Cigarette Factory, Research Center, Changsha, Hunan, China
    3-Oxo-α-ionol ethyl carbonate, a precursor of megastigmatrienones was prepared by reduction of α-ionone to α-ionol, followed by esterification with ethyl chloroformate and then by oxidation with t-butyl chromate. The total yield was about 23%. Infrared ...
  3. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2001, 19-7, p. 361-79, ISSN.0173-783X

    Studies of polycyclic aromatic hydrocarbons in cigarette mainstream smoke: identification, tobacco precursors, control of levels: A review

    RODGMAN A.
    Alan RODGMAN, 2828 Birchwood Drive, Winston-Salem, North Carolina, 27103-3410, USA
    During the period of tobacco smoke research from the early 1950s to the mid-1960s it was repeatedly asserted that a) tobacco and many tobacco components were involved in the pyrogenesis of polycyclic aromatic hydrocarbons (PAHs), several of which were ...
  4. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2002, 20-1, p. 15-22., ISSN.0173-783X.

    Bacillus thuringiensis (Bt) for the control of insect pests in stored tobacco: a review

    BLANC M.; KAELIN P.; GADANI F.
    Philip Morris Intl, R&D, c/o Philip Morris Products SA, Neuchâtel, Switzerland.
    Among the insect species causing infestations and serious damages to stored commodities, the cigarette beetle, Lasioderma serricorne (F.) and the tobacco moth, Ephestia elutella (Hübner) are the major pests of both raw and manufactured tobacco. Post ...
  5. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2002, 20-1, p. 7-13., ISSN.0173-783X

    Handling and curing characteristics of cut-strip tobacco. Part 1: Effect of strip-size, packing density and mode of orientation

    JOHNSON W.H.; YOUNG J.H.; WEEKS W.W.
    North Carolina State University, Dept. of Biological and Agricultural Engineering, Raleigh, NC, USA
    Previous work has demonstrated potential handling and curing efficiencies in the use of cut-strip tobacco. The present work considers further the effect of cut-strip size, packing density and mode of orientation on cured leaf chemistry (starch, reducing ...
  6. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2002, 20-2, p. 61-7., ISSN.0173-783X

    Handling and curing characteristics of cut-strip tobacco. Part 2: effect of yellowing lime and drying potential

    JOHNSON W.H.; YOUNG J.H.; WEEKS W.W.
    North Carolina State University, Dept. of Biological and Agricultural Engineering, Raleigh, NC, USA
    This paper presents Part 2 of a study on comparative handling and curing characteristics of cut-strip vs. wholeleaf tobacco. Part I considered the effect of leaf size (cutstrip size vs. whole leaf), packing density and mode of leaf orientation on cured ...
  7. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2002, 20-2, p. 83-103., ISSN.0173-783X

    Some studies of the effects of additives on cigarette mainstream smoke properties. I. Flavorants

    RODGMAN A.
    Alan RODGMAN, 2828 Birchwood Drive, Winston-Salem, North Carolina, 27103-3410, USA
    Examination of extensive laboratory data collected during the past four decades, particularly considerable unpublished data generated between the mid-1950s and the late 1970s, indicates that none of the materials used as flavorants on smoking tobacco ...