Search Results

57 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 06

    Effect of biochar fertilizer on microbial functional diversity of tobacco-planting soil

    CHANG Dong; XU Fangda; ZHANG Kai; WANG Xiaoqiang; HE Xiaobing; XU Yueqi; WANG Mingxin; MA Wenhui
    Pingdingshan Tobacco Company of Henan of CNTC, Pingdingshan, Henan, P.R. China
    The structure and function of soil microbial communities have been widely used as indicators of soil quality and fertility. The effect of biochar application on carbon sequestration has been studied, but the effect of biochar fertilizer on soil microbial ...
  2. TSRC, Tob. Sci. Res. Conf., 2017, 71, abstr. 057

    AKR1C1 as a biomarker for differentiating the biological effects of combustible from non-combustible tobacco products

    TRAN Q.T.(1); WOO S.(2); HENDERSON D.(2); GAO H.(3); ZACHARIAS W.(3); LIU G.(1); PRASAD G.L.(1)
    (1) RAI Services Company, Winston-Salem, NC, USA; (2) Axio Research, Seattle, WA, USA; (3) University of Louisville School of Medicine, Louisville, KY, USA
    Smoking has been established as a major risk factor for developing oral squamous cell carcinoma (OSCC), but less attention has been paid to the effects of smokeless tobacco products. Our objective is to identify potential biomarkers to distinguish the ...
  3. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, ST 20

    The influence of storage conditions and packaging on acetic acid generation in cellulose acetate fibers

    TATUM C.E.; WILSON S.A.; CASPER R.G.; PEARCE M.J.
    Eastman Chemical Company, Kingsport, TN, U.S.A.
    The cellulose acetate polymer used in cigarette filters is made by acetylating wood pulp with acetic anhydride. One advantage of this modified natural polymer is that it readily degrades by multiple mechanisms. While the ultimate products are carbon ...
  4. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 07

    Comparison of the cerulean e-cigarette pressure drop testing instrument to the ces 508 cigarette pressure drop and ventilation tester unit for electronic cigarettes, conventional tobacco burning cigarettes, and filter tips

    AVANTS K.W.(1); WILSON S.A.(2); CLARK J.(1)
    (1) Liggett Group, LLC, Mebane, NC USA; (2) Eastman Chemical Company, Kingsport, TN USA
    The pressure drop or “resistance to draw” of cigarettes and cigarette-like products is a prominent experience for consumers. This poster is a comparison of two commercial instruments with different approaches to measuring pressure drop. The instruments ...
  5. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, PT 01

    Photodegradability testing of cellulose acetate filters – outdoor weathering vs. accelerated weathering

    STEACH J.K.; FISHER JONES D.
    Eastman Chemical Company, Kingsport, TN, USA
    Degradation testing in the laboratory is based on understanding a material’s exposure to specific environmental forces, which can play a key role in the mechanisms of degradation. Cellulose acetate filters can be degraded by various environmental forces, ...
  6. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, SSPTPOST 06

    Combusted, but not smokeless tobacco product preparations, cause DNA damage in human oral cavity cells

    ZACHARIAS W.(1); GAO H.(1); PRASAD G.L.(2)
    (1) Dept. of Medicine, J.G. Brown Cancer Center, University of Louisville, Louisville, KY, USA; (2) R.J. Reynolds Tobacco Co., R&D Department, Winston-Salem, NC, USA
    We examined the effects of reference tobacco preparations on DNA damage in human oral cavity cells. The oral squamous cell carcinoma cell line (101A), normal human gingival epithelial cells (HGEC), and human gingival fibroblasts (HGF) were treated with ...
  7. TSRC, Tob. Sci. Res. Conf., 2012, 66, abstr. 30

    Combusted, but not smokeless tobacco product preparations, cause DNA damage in human oral cavity cells

    ZACHARIAS W.(1); HONG GAO(1); PRASAD G.L.(2)
    (1) Brown Cancer Center, Univ. of Louisville, Louisville, KY, USA; (2) R.J. Reynolds Tobacco Company, Winston-Salem, NC, USA
    We examined the effects of reference tobacco preparations on DNA damage in human oral cavity cells. The oral squamous cell carcinoma cell line (101A), normal human gingival epithelial cells (HGEC), and human gingival fibroblasts (HGF) were treated with ...