Search Results

30 results

  1. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 32 (also presented at TSRC 2018)

    Characterization and certification of smokeless tobacco reference products

    SLONE S.; CANETE S.; SHELTON B.; JI H.; JACK A.M.; BUSH L.; CHAMBERS O.
    Center for Tobacco Reference Products, University of Kentucky, Lexington, KY, U.S.A.
    The constituents of raw tobacco products are naturally variable, and product design, the manufacturing process and the evolving science of tobacco analytics may increase this variability. The call for certified tobacco reference materials and their ...
  2. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 55

    Determination of tobacco alkaloid enantiomers using reversed phase UPLC/MS/MS

    JI H.(1); WU W.(1); FANNIN F.(2); BUSH L.(2)
    (1) Kentucky Tobacco Research and Development Center, Lexington, KY, U.S.A.; (2) Department of Plant and Soil Sciences, University of Kentucky, Lexington, KY, U.S.A.
    N'-Nitrosonornicotine (NNN), one of the carcinogenic tobacco-specific N'-nitrosamines (TSNAs), is on the Food and Drug Administration’s list of harmful and potentially harmful constituents (HPHCs). Nornicotine, a compound of the demethylation of ...
  3. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, APPOST 09

    Sustaining low TSNA levels in Malawi Burley tobacco using the LC Protocol

    CHAMANGO A.M.Z.(1); SIBANDE L.A.G.O.(1); JACK A.M.(2); GOMONDA R.W.J.(1); JI H.(2); MPHEMBERA A.(1); MWANYONGO A.(1); MSANGOSOKO K.R.(1); KHUMBANYIWA A.G.(1); KUMWENDA R.L.N.(1)
    (1) Agricultural Research and Extension Trust (ARET), Lilongwe, Malawi; (2) University of Kentucky, Kentucky Tobacco Research and Development Center, Lexington, KY, U.S.A.
    Burley tobacco has variable levels of conversion of nicotine to nornicotine, the precursor for the main Burley tobacco specific nitrosamine (TSNA), N’-nitrosonornicotine (NNN). Malawian tobacco is inherently low in TSNA levels, affording a competitive ...
  4. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, STPOST 45 (also presented at TSRC 2017)

    Stability of the certified 1R6F reference cigarette

    JI H.(1); WU Y.(1); FANNIN F.F.(2); BUSH L.P.(2)
    (1) University of Kentucky, Center of Tobacco Reference Products, Lexington, KY, U.S.A.; (2) University of Kentucky, Department of Plant and Soil Sciences, Lexington, KY, U.S.A.
    University of Kentucky Center of Tobacco Reference Products (CTRP) has provided reference cigarettes for almost 50 years. These reference cigarettes are widely used in tobacco research including analytical method development and modified risk tobacco ...
  5. CORESTA Congress, Berlin, 2016, Agronomy/Phytopathology Groups, AP 43

    The pattern of benzo[a]pyrene and tobacco-specific nitrosamine accumulation in fire-cured tobacco: a comparison of two barn types

    JACK A.M.; BAILEY W.A.; SCHOERGENDORFER A.; JI H.; WU Y.
    University of Kentucky, KTRDC, Lexington, KY, U.S.A.
    A two-year experiment was done to study the pattern of accumulation of benzo[a]pyrene (B[a]P) and tobacco specific nitrosamines (TSNAs) during fire-curing, and to establish whether B[a]P and TSNAs can be reduced by modifying the firing regime. The 2012 ...
  6. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups (Workshop), STW 05

    Design, manufacture, and availability of reference tobacco products

    JI H.; CANETE S.; CHAMBERS O.
    University of Kentucky, KTRDC, Center for Tobacco Reference Products, Lexington, KY, U.S.A.
    As the science of tobacco analysis continues to advance, there is a need for appropriate tobacco reference materials. There is natural variability in the measurement of tobacco product constituents coming from the raw inputs, but measurement variability ...