Search Results

11 results

  1. 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...
  2. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 49

    On-line real-time analysis of e-cigarette vapours and heat-not-burn tobacco products by photo-ionization mass spectrometry

    ZIMMERMANN R.(1); EHLERT S.(2); STREIBEL T.(1); HEIDE J.(1); WOLTER J.(1); WALTE A.(2)
    (1) University of Rostock, Germany; (2) Photonion GmbH, Schwerin, Germany
    Photo ionization time-of-flight mass spectrometry (PI-TOFMS) is an established technology for on-line, puff-resolved characterization of organic compounds in smoke of conventional cigarettes. Many toxicants, such as butadiene, acetaldehyde, phenol or...
  3. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 86

    Study on influence of processing strength on flue-cured tobacco leaf quality in the threshing and redrying process

    LONG Minghai(1); HUA Yikun(2); WANG Xianguo(2); LIN Nan(1); ZI Wenhua(1)
    (1) Yunnan Reascend Tobacco Technology (Group) Co. Ltd., Kunming, Yunnan, P.R. China; (2) Hongyun Honghe (Group) Co., Ltd., Kunming, Yunnan, P.R. China
    To improve the technological level of threshing and redrying and quality of products, the influences of processing strengths (steam moistening, steam mixing water moistening, slow redrying with low-temperature, high-temperature redrying) on the...
  4. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 41

    Highly time-resolved two-dimensional mapping of the molecular combustion and pyrolysis product concentrations during a puff in a burning cigarette

    ZIMMERMANN R.(1); HERTZ-SCHÜNEMANN R.(1); STREIBEL T.(1); EHLERT S.(2); WALTE A.(2); LIU C.(3); McADAM K.(3)
    (1) University of Rostock, Rostock, Germany; (2) Photonion GmbH, Schwerin, Germany; (3) British American Tobacco, Southampton, UK
    Cigarette smoking is an extremely complex and dynamic chemical process. The gas phase chemistry of tobacco combustion in the tobacco voids and pores is difficult to address by conventional analytical methods. Recently photo ionisation mass...
  5. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 70

    On-line photo ionization mass spectrometry for characterization of smoke from e-cigarettes or heat-not-burn devices

    ZIMMERMANN R.(1); STREIBEL T.(1); HEIDE J.(1); HERTZ-SCHÜNEMANN R.(1); EHLERT S.(2); WALTE A.(2); LIU C.(3); McADAM K.(3)
    (1) University of Rostock, Rostock, Germany; (2) Photonion GmbH, Schwerin, Germany; (3) British American Tobacco, Southampton, UK
    Photoionization time of flight mass spectrometry (PI-TOFMS) is well suited for on-line characterization of tobacco smoke. Depending on the photoionization method (single photon ionization, SPI or resonance-enhanced multiphoton ionization, REMPI),...
  6. TSRC, Tob. Sci. Res. Conf., 2014, 68, abstr. 82

    Permeable mechanism of complex enzymes for improving casing absorption in tobacco leaves

    QIU Changgui(1); HOU Ying(1); LIU Jihui(2); WANG Hui(2); HUA Yikun(2); WANG Xianguo(2); YANG Shengjiang(3); HUANG Kaixin(3)
    (1) Yunnan Reascend Tobacco Technology (Group) Co. Ltd., Kunming, China; (2) Technology Centre of Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming, China; (3) Kunming Weinuo Jinshen Biological Engineering Co., Ltd., Kunming, China
    In order to investigate the distribution characteristics and permeable mechanism of casing materials absorbed on the surface of tobacco leaves, the epicuticular waxes on the surface of the tobacco leaf were processed by using methylene chloride and...
  7. TSRC, Tob. Sci. Res. Conf., 2011, 65, abstr. 52

    Puff-resolved on-line real-time analysis and quantification of tobacco smoke components by a commercial smoke profiler (smoking machine - photo-ionization TOF mass spectrometer system).

    ZIMMERMANN R.(1); ROSE N.(2); WALTE A.(3); SARAJI-BOZORGZAD M.(3); BENTE M.(3); GROEGER T.(4); ESCHNER M.(4)
    (1) University of Rostock, Germany; (2) Borgwaldt KC, Hamburg, Germany; (3) Photonion GmbH, Schwerin, Germany; (4) Helmholtz Zentrum, Mnchen, Germany
    Recently, laser based photo-ionization mass spectrometry has been successfully coupled to smoking machines, allowing the puff-resolved on-line analysis of volatile and semi-volatile tobacco smoke constituents[1]. The introduction of special...
  8. TSRC, Tob. Sci. Res. Conf., 2011, 65, abstr. 53

    Detection of the molecular composition of pyrolysis gases in thermal analysis (TA) using photo ionization tof mass spectrometry for Evolved Gas Analysis (EGA): instrumental set-up and first results on tobacco and cigarettes materials.

    ZIMMERMANN R.(1); SARAJI-BOZORGZAD M.(2); BENTE M.(2); WALTE A.(2); ESCHNER M.(3)
    (1) University of Rostock, Germany; (2) Photonion GmbH, Schwerin, Germany; (3) Helmholtz Zentrum Mnchen, Germany
    Evolved Gas Analysis (EGA) in Thermogravimetry (TG) by mass spectrometry (MS) is a powerful technology for analysis of thermal degradation products from organic materials such as polymers, bio mass, paper or tobacco. TG-MS with electron ionization...
  9. TSRC, Tob. Sci. Res. Conf., 2009, 63, abstr. 70

    Characterization of a novel nicotine-degrading Bacterium Rhodococcus sp. Y22 and its metabolic pathway

    DUAN YANQING; ZENG XIAOYING; ZHE WEI
    Technology Center, Hongyun Honghe Tobacco Co., LTD., Kunming, China
    A novel nicotine- degrading bacterium, strain Y22, was isolated from tobacco plantation soil and identified as Rhodococcus sp. based on 16S rDNA sequence and on morphological and biochemical features. The isolate could utilize nicotine as sole...