Search Results

27 results

  1. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 04

    Regulation network of nicotine biosynthesis in tobacco: the non-coding players

    CHEN Xi(1,2); SUN S.(1,2); SHEN E.(1,2); WANG W.(1,2); LI F.(1); LIU F.(1,2); CHEN H.(1,2); YE C.(1,2); XIAO B.(3); FAN L.(1,2)
    (1) Institute of Crop Science, Zhejiang University, Hangzhou, P.R. China; (2) Institute of Bioinformatics, Zhejiang University, Hangzhou, P.R. China; (3) Yunnan Academy of Tobacco Agricultural Sciences and China Tobacco Breeding Research Center, Yunnan, Yuxi, P.R. China
    Several key gene encoding enzymes of nicotine biosynthesis and catabolism pathways have been characterized in tobacco. Non-coding RNAs (ncRNAs) are transcripts with no or low protein coding potential. ncRNAs include microRNAs (miRNAs) with a size of 20-24 ...
  2. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 01

    In vitro biological safety evaluation of cigarette smoke

    CHEN Xi(1,2); SHEN Y.(1,2); CHEN Hongyu(1,2); LIU F.(1,2); QI H.(3); JIMIN S.(3); TIMKO M.(4); FAN L.(1,2)
    (1) Research Center for Air Pollution and Health, Zhejiang University, Hangzhou, P.R. China; (2) Institute of Bioinformatics, Zhejiang University, Hangzhou, P.R. China; (3) Department of Pathology and Pathophysiology, School of Basic Medical Sciences, Zhejiang University, Hangzhou, P.R. China; (4) Department of Public Health Sciences, School of Medicine, University of Virginia, Charlottesville, VA, U.S.A.
    Traditionally, toxicological evaluation of cigarette smoke has focused on the harmful chemical content of smoke. Harm-reduced cigarettes should not only refer to these chemical compounds, but also to the degree of the effect of whole smoke on human cells. ...
  3. TSRC, Tob. Sci. Res. Conf., 2013, 67, abstr. 20

    A comprehensive analysis of transcriptome dynamics in tobacco (Nicotiana tabacum l.) leaves.

    LI Ruiyuan(1); FAN Longjiang(2); GUI Yijie(2); SHI Yuewei(1); WANG Zhihong(1); XI Shengdong(1); REN Xueliang(1)
    (1) Guizhou Academy of Tobacco Science, Guiyang City, P.R. China; (2) Zhejiang University, P.R. China
    By using a custom-designed microarray containing 44,873 unigenes derived from public EST libraries, the transcriptome of tobacco leaves at different stalk positions and developmental stages was investigated and analyzed for three varieties planted in two ...
  4. Tobacco Science & Technology, 2012, 9, p. 47-50, ISSN.1002-0861

    Application of electronic nose in quality control of tobacco flavor

    JIANG Jian(1); YANG Jun(1); HUANG Fangfang(1); TANG Cunxiao(2); HE Jinzhe(2); SUN Peilong(2)
    (1) China Tobacco Zhejiang Industrial Co., Ltd., Hangzhou 310009, P.R. China; (2) Food Department, College of Biology and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, P.R. China
    Nine tobacco flavor samples were detected by an electronic nose, the obtained data were analyzed with principal component analysis (PCA) and discriminant factor analysis (DFA). The models of quality control were established, and the quality consistency of ...
  5. Tobacco Science & Technology, 2004, 2, p. 38-40, ISSN.1002-0861

    Determination of physiological and biochemical indexes of primed pelleted seed and investigation on root development of tobacco seedlings

    SUN WEI; HU JIE; LI BIN
    Agriculture and Biology Technique College of Zhejiang University, Hangzhou, China
    The conductivity of impregnant and activity of relative enzymes of primed and unprimed naked tobacco seed were determined, and the characteristics of adult seedlings and root development of primed and unprimed pelleted seed were investigated. The results ...
  6. CORESTA Congress, Paris, 2006, PT 20

    Feature selection from near infrared spectra using genetic algorithms for tobacco blend recognition

    FIGUERES G.; DE SOUZA S.; REYNES C.; SABATIER R.; VIDAL B.
    Altadis Research Centre, Fleury-les-Aubrais, France
    Near infrared reflectance spectroscopy has proved to be very useful for predicting concentrations of chemical compounds in tobacco, classification or pattern recognition of cigarette blends. The resulting measurement of a sample is a whole reflectance ...
  7. CORESTA Congress, Paris, 2006, SS 01

    How representative of the human smoking behaviour would be the new alternative smoking regimes? A first attempt of assessment

    MARCHAND V.; TESSIER C.; DUMERY B.
    Altadis Research Centre, Fleury-les-Aubrais, France
    The ISO or FTC smoking conditions (35 mL- 2 s puffs, 1 puff per minute) have been more and more criticized during the last decade, especially because they would not reflect the human smoking behaviour. Their main objective was not to predict the exact ...
  8. CORESTA Congress, Paris, 2006, SS 13

    A mixture experimental design with six variables and the effects on smoke components:1 - Presentation of this experimental design and of some initial results on physical characteristics of cigarettes and blends

    VIDAL B.; FIGUERES G.; BIESSE J.P.; BREGEON B.; LOUVET F.; MUZELLEC L.
    Altadis Research Centre, Fleury-les-Aubrais, France
    The objective of this paper is to examine the effects of six tobacco components on the chemical and physical characteristics of blends and cigarettes and particularly on the mainstream smoke yields. First of all, we will develop the philosophy of this ...
  9. CORESTA Congress, Paris, 2006, SS 14

    A mixture experimental design with 6 variables and the effects on smoke components:2 - Hoffmann analytes behaviour through a mixture experimental design

    FIGUERES G.; VIDAL B.; BIESSE J.P.; BREGEON B.; LOUVET F.; MUZELLEC L.
    Altadis Research Centre, Fleury-les-Aubrais, France
    Today in the tobacco industry, one of the main scientific challenges is to understand the formation of some smoke compounds ("Hoffmann analytes"). For several years, work has been conducted in order to know the influence of cigarette design ...