Search Results

66 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2017, Santa Cruz do Sul, AP 39

    Identification of genetic determinants controlling cadmium accumulation in tobacco

    BERTRAND J.(1); JULIO E.(2); COTUCHEAU J.(2); DORLHAC DE BORNE F.(2); BERTHOMIEU P.(1)
    (1) UMR de Biochimie et Physiologie Moléculaire des Plantes, INRA/CNRS/Montpellier SupAgro/Université Montpellier, Montpellier, France; (2) Imperial Tobacco Limited, Leaf Research, La Tour, Bergerac, France
    Cadmium is a toxic heavy metal naturally absorbed and accumulated by plants. It is present in tobacco (Nicotiana tabacum) leaves and potentially in the smoke of cigarettes. Reducing the cadmium content in leaves of tobacco plants requires a better ...
  2. 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 ...
  3. 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 ...
  4. CORESTA Congress, Quebec, 2014, Agronomy/Phytopathology Groups, APPOST 03

    Agrobacterium T-DNA in Nicotiana tomentosiformis and other Nicotiana species

    CHEN K.(1); DORLHAC DE BORNE F.(2); SZEGEDI E.(3); OTTEN L.(1)
    (1) Department of Molecular Mechanisms of Phenotypic Plasticity, Institut de Biologie Moléculaire des Plantes du C.N.R.S., Strasbourg, France; (2) National Agricultural Research and Innovation Centre (NARIC), Research Institute for Viticulture and Enology, Experimental Station of Kecskemét, Hungary; (3) Imperial Tobacco Group, Institut du Tabac, Bergerac, France
    Agrobacterium rhizogenes induces growth of aberrant roots with bacterial T-DNA; some roots can spontaneously regenerate into plants carrying T-DNA fragments. T-DNAs contain genes that are expressed in plants which normally lead to root growth and to the ...
  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, ...