Search Results

24 results

  1. Beitr. Tabakforsch. Int./Contrib. Tob. Research, 2005, 21-7, p. 369-79., ISSN.0173-783X

    Analysis of minor alkaloids in tobacco: A collaborative study

    CHEN P.X.; QIAN N.; BURTON H.R.
    R.J. Reynolds Tobacco Company, R&D, Winston-Salem, NC, USA
    A collaborative study regarding the analysis of minor alkaloids in tobacco and tobacco products was initiated by the Analytical Methods Committee of the Tobacco Science Research Conference (TSRC). One purpose of the study was to assess the reliability of ...
  2. CORESTA Meeting, Agronomy/Phytopathology, Santa Cruz do Sul, 2005, A 10

    Influence of air-curing practices on accumulation of tobacco-specific nitrosamines in burley tobacco

    BURTON H.R.; BUSH L.P.
    University of Kentucky, Dept. of Plant & Soil Sciences, Lexington, KY, USA
    Previous studies by our laboratory have shown there is variability in accumulation of tobacco-specific nitrosamines (TSNA) in air-cured tobacco on a year to year, plant to plant, location to location and variety to variety basis. Little or no information ...
  3. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, AP 15 (adjourned)

    Ethylene stimulation on nicotine to nornicotine conversion in Burley tobacco

    SHI H.; FANNIN F.F.; BURTON H.R.; BUSH L.P.
    University of Kentucky, Dept. of Agronomy, Lexington, KY, USA
    Nicotine and nornicotine are the two principal alkaloids in cultivated tobacco (Nicotiana tabacum L.) with more than 95% of the total alkaloid often being nicotine and 3.5% or less being nornicotine. In some plants a substantial amount of nicotine may be ...
  4. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, AP 17

    Influence of variety and location on the accumulation of tobacco specific nitrosamines in air-cured burley tobacco

    BURTON H.R.; MILLER R.D.; DYE N.; CHILDS G.; BUSH L.P.
    University of Kentucky, Dept. of Agronomy, Lexington, KY, USA
    In recent years there has been a continued interest in understanding the role of curing on the accumulation of tobacco-specific nitrosamines (TSNA) in air-cured tobacco. Previous studies have shown TSNA accumulation occurs between the second and fourth ...
  5. CORESTA Meeting, Agronomy/Phytopathology, Cape Town, 2001, AP 32

    Studies of barn and field curing environments on TSNA formation in burley tobacco

    DUNCAN G.A.; BUSH L.P.; BURTON H.R.; MONTROSS M.; CALVERT J.
    University of Kentucky, Dept. of Biosystems and Agricultural Engineering, Lexington, KY, USA.
    The formation of tobacco specific nitrosamines (TSNAs) in various tobaccos has become a topic of importance in recent years. The significant formation of TSNAs in burley tobacco occurs after the yellowing phase of curing and is dependent on several ...
  6. Bull. Spec. CORESTA Congress, Lisbon, 2000, p. 53, AP3

    Alkaloids and TSNA contents in Chinese tobacco and cigarettes

    SHI Hongzhi; HUANG Y.J.; LIU G.S.; YU J.J.; ZHAO M.Q.; BUSH L.P.; BURTON H.R.
    Henan Agricultural University, Zhengzhou, Henan, China
    Nornicotine, a main alkaloid in tobacco, can have a negative impact on tobacco smoke quality and has shown to be a precursor for nitrosonornicotine (NNN). This study was conducted to determine alkaloid and TSNA content of selected Chinese tobacco and ...