Search Results

62 results

  1. 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 ...
  2. 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 ...
  3. CORESTA Congress, Quebec, 2014, Agronomy/Phytopathology Groups, APPOST 24

    The difference of cadmium tolerance in two varieties of Nicotiana tabacum L. and effect of exogenous abscisic acid on cadmium accumulation in Nicotiana tabacum L.

    DENG Xiaopeng(1); XU Zhaoli(1); HE Lian(2); XIA Yan(2); SHEN Zhenguo(2)
    (1) Yunnan Academy of Tobacco Agricultural Sciences, China Tobacco Breeding Research (Southern) Center, Kunming, P.R. China; (2) Nanjing Agricultural University, College of Life Sciences, Nanjing, P.R. China
    Hydroponic cultures were conducted to investigate the tolerance and accumulation of cadmium (Cd) between two varieties of N. tabacum L., ‘MS-Yunyan87’ and ‘MS-K326’. The effect of Cd and abscisic acid (ABA) on growth and Cd accumulation in tobacco ...
  4. 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, ...
  5. Tobacco Science & Technology, 2012, 12, p. 60-67, ISSN.1002-0861

    Isolation, identification and characteristics of nicotine-degrading bacterium from flue-cured tobacco leaves during aging

    LI Tianli(1,2); ZHOU Yawei(1); TANG Chaoqi(2); QU Yongsheng(2); LI Pengfu(1,2)
    (1) College of Life Science, Nanjing University, Nanjing 210093, P.R. China; (2) Shanghai Tobacco Group Co., Ltd., Shanghai 200082, P.R. China
    A bacterial community named Q6 with the ability of nicotine degrading was isolated from flue-cured tobacco leaves during aging. The results of PCR-DGGE analysis of 16S rDNA segment suggested that the bacterial community Q6 consisted of eight species. A ...
  6. Tobacco Science & Technology, 2012, 8, p. 79-83, ISSN.1002-0861

    Preliminary analysis of soil microbial diversity in tobacco bacterial wilt disease nursery

    CAI Liuti(1,2); SHANG Shenghua(1); HU Zhongyi(1); WANG Lili(2); LIU Yanxia(2); WANG Hancheng(1); YANG Xingming(2); SHI Junxiong(*1)
    (1) Guizhou Tobacco Research Institute, Guiyang 550081, P.R. China; (2) College of Resource and Environmental Science, Nanjing Agricultural University, Nanjing 210095, P.R. China
    To prevent and control tobacco bacterial wilt disease with antagonistic bacterium against Ralstonia solanacearum, the microbial diversity in soil of tobacco bacterial wilt disease nursery was preliminarily analyzed by means of conservative fragment ...