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342 results

  1. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, PT 09

    Quantitative analysis of labdanoids in tobacco leaves by gas chromatography

    KASHIMA T.; ISHIDA N.; GOHARA Y.; YOKOI M.
    Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan
    Labdanoids are one of the main diterpenoids in the leaf surface resin of Oriental tobacco. They are thought to give a unique taste and aroma to Oriental tobacco leaf. However, there have been no reports referring to the comprehensive quantitative results ...
  2. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SS 14

    Applying gas chromatography with soft ionisation mass spectroscopy for the characterisation of tobacco leaves and tobacco smoke

    DAVID F.(1); TIENPONT B.(1); MITSUI K.(2); OCHIAI N.(3); SASAMOTO K.(3); HIGASHI N.(2); SANDRA P.(1)
    (1) Research Institute for Chromatography, Kortrijk, Belgium; (2) Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Japan; (3) Gerstel K.K., Tokyo, Japan
    In this presentation, the applicability of GC in combination with atmospheric pressure chemical ionisation mass spectroscopy (APCI-MS) and with supersonic molecular beam ionisation mass spectroscopy (SMB-MS) will be demonstrated for the characterisation ...
  3. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 01

    Study on the formation mechanisms of 4-aminobiphenyl in the combustion of cigarette including isotope-labelled phenylalanine

    YOSHIDA S.(1,2); KOBAYASHI K.(2)
    (1) Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Japan; (2) Graduate School of Engineering, Yokohama National University, Yokohama, Japan
    Tobacco smoke is a complex mixture of a wide variety of chemical compounds, including polycyclic aromatic amines (PAAs). In past studies, it was proposed that proteins in tobacco are major precursors of PAAs. At the 2007 CORESTA SSPT Meeting (Jeju), the ...
  4. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 05

    Transfer of stable cesium isotope from cigarette into smoke

    FURUKAWA C.; YOSHII H.
    Japan Tobacco Inc., Product Quality Research Division, Yokohama, Kanagawa, Japan
    It is well known that tobacco contains various kinds of trace metals such as Ca, K and Mg and that some of these metals transfer to smoke when tobacco is smoked. On the other hand, only few data is publicly available with regard to transfer of Cs, one of ...
  5. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 10

    Estimation of net heat generated from tobacco under puffing condition

    INOUE Y.; NAGAO A.
    Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan
    Heat from the combustion of cut tobacco affected the mass burning rates of cigarettes, expressed in units of cal/g. Several investigations have been conducted to identify the heat of combustion of cut tobacco under static burning conditions. However, few ...
  6. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 13

    Kinetic analysis of changes in concentrations of tobacco constituents during drying

    KATSUOKA T.; OSAKI E.; SAKAMOTO K.
    Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Kanagawa, Japan
    Reaction kinetics was applied to the estimation of changes in the concentrations of some constituents in tobacco cut-filler during drying. Nicotine, α-CBT and sugars related to the smell and taste of tobacco were chosen as the prime chemical species on ...
  7. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 18

    Estimation of mouth level smoke exposure in cigarettes with different tar content using filter analysis

    BITO R.; MINAMI N.; KAKEHI A.; YUKI D.; ONOZAWA M.
    Japan Tobacco Inc., R&D Group, Product Science Division, Yokohama, Kanagawa, Japan
    Filter analysis for evaluating the mouth level exposure (MLE) of smokers is non-invasive, allowing ordinary smoking behaviour with simple sample collection. We investigated 1) estimated MLEs to 36 smoke constituents using filter analysis, 2) MLEs of ...
  8. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 28

    Comprehensive analysis of sulfur-containing compounds in tobacco smoke by using new separation and analytical techniques

    YOSHIMURA Y.(1); OCHIAI N.(2); SASAMOTO K.(2); MITSUI K.(1); KANDA H.(2); HIGASHI N.(1); DAVID F.(3); SANDRA P.(3)
    (1) Japan Tobacco Inc., Tobacco Science Research Center, Yokohama, Japan; (2) Gerstel K.K., Tokyo, Japan; (3) Research Institute for Chromatography, Kortrijk, Belgium
    Sulfur-containing compounds in food have been extensively studied because of their effect on aroma and taste. It is well known that sulfur compounds in complex matrices, such as tobacco smoke, are difficult to analyse. Sulfur compounds are typically ...
  9. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPT 36

    The long-term variability of selected smoke constituents of commercial brands in the Japanese market

    MINAGAWA K.
    Japan Tobacco Inc., R&D Group, Product Science Division, Yokohama, Kanagawa, Japan
    To control or evaluate cigarette smoke constituents, it is important to consider their long-term variability. The aim of this study is to understand how the variability of smoke constituents changes over the long term and what is the key factor of the ...