Search Results

6 results

  1. TSRC, Tob. Sci. Res. Conf., 2017, 71, abstr. 074

    The enantiomeric composition of N'-nitrosonornicotine in air-cured tobacco influenced by nicotine demethylation

    CAI Bin(1); JI Huihua(2); FANNIN F.F.(2); BUSH L.P.(2)
    (1) Guizhou Academy of Tobacco Science, Guiyang City, China; (2) University of Kentucky, Lexington, KY, USA
    N'-nitrosonornicotine (NNN) is a potent and organ-specific carcinogen found in tobacco and tobacco smoke in substantial amounts. The aim of this study was to investigate the variations in NNN enantiomeric composition in nicotine demethylase mutants. ...
  2. CORESTA Meeting, Agronomy/Phytopathology, 2013, Brufa di Torgiano, AP 28

    Changes in TSNA contents during tobacco storage and the effect of temperature and nitrate level on TSNA formation

    SHI Hongzhi(1); WANG Ruiyun(1); BUSH L.P.(2); ZHOU Jun(3); FANNIN F.F.(2); BAI Ruoshi(3); YANG Huijuan(1)
    (1) Henan Agricultural University, National Tobacco Cultivation & Physiology & Biochemistry Research Center, Zhengzhou, P.R. China; (2) University of Kentucky, Lexington, KY, U.S.A.; (3) Beijing Cigarette Factory of Shanghai Tobacco Group, Beijing, P.R. China
    Samples of Burley, sun-cured and flue-cured tobacco from the main producing areas of relevant tobacco types in China were collected to study the changes in tobacco-specific nitrosamine (TSNA) contents during storage and to investigate the effect of ...
  3. CORESTA Meeting, Agronomy/Phytopathology, Krakow, 2007, AP 06

    Study on decreasing nicotine conversion in Chinese Burley hybrid through genetic improvement

    SHI Hongzhi; LI Jinping; LI Zongping; BUSH L.P.; WANG Changjun; LIU Guoshun
    Henan Agricultural University, National Tobacco Cultivate Physiology and Biochemistry Research Centre, Zhengzhou, China.
    The study was conducted, through early identification and selection, to investigate the effect of selecting parents of Eyan1 for nicotine conversion and to compare the effects on reducing converters, decreasing tobacco specific nitrosamine and increasing ...
  4. 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 ...