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  1. Tobacco Science & Technology, 2011, 12, p. 52-55., ISSN.1002-0861

    Simultaneous determination of five neonicotinoids pesticide residues in tobacco leaf with SPE-LC/MS/MS

    HE QING; XU YING-BO; WANG CHENG-HUI; TIAN ZHEN-FENG; ZHU DONG-LIANG
    Technology Center, China Tobacco Anhui Industrial Corporation, Hefei 230088, P.R. China
    By comparing the affinities of silica gel, graphitized carbon, C18, and polymer cartridges for the analyzed pesticides, a method for simultaneously determining five neonicotinoid pesticides, including nitenpyram, thiamethoxam, imidacloprid,...
  2. Tobacco Science & Technology, 2011, 12, p. 56-60., ISSN.1002-0861

    Determination of resorcinol and other phenolic compounds in mainstream cigarette smoke by two-dimensional liquid chromatography

    YAN QUAN-PING; WANG SHENG; DING LI; ZHAO GE; GUO JI-ZHAO; XIE FU-WEI
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    Seven major phenolic compounds, including hydroquinone, resorcinol, catechol, phenol, m+p-cresol and o-cresol, in mainstream cigarette smoke were determined by liquid chromatography with two-dimensional column (2D-LC). The conditions of heart-cutting...
  3. Tobacco Science & Technology, 2011, 12, p. 61-64., ISSN.1002-0861

    Reaction of tobacco to oxidation stress induced by topping and bionic signal molecules

    ZHANG XIN-HUA(1,2); YAO ZHONG-DA(3); CHEN CHANG-WEI(1); CHA XIANG-DONG(2); CHENG XIN-SHENG(1)
    1. Research Center of Tobacco and Health, University of Science and Technology of China, Hefei 230052, P.R. China; 2. Biological Science College of Anhui University, Hefei 230039, P.R. China; 3. China Tobacco Anhui Industrial Co., Ltd., Hefei 230088, P.R. China
    To investigate whether the mechanical injury on tobacco by topping induces oxidation stress, the contents of superoxide anion (O2-•), hydrogen peroxide (H2O2) and malondialdehyde (MDA) and the activity of superoxide dismutase (SOD) in leaf tissue...
  4. Tobacco Science & Technology, 2011, 12, p. 69-72., ISSN.1002-0861

    Screening of solid state fermentation conditions of waste stem for producing Bacillus Thuringiensis

    DU LEI; ZHAO GAO-LING; XI YU; ZANG XIAO-JING; ZHU DA-HENG
    Department of Bioengineering, Zhengzhou University, Zhengzhou 450001, P.R. China
    Using waste tobacco stem as raw material, the medium compositions and conditions of solid state fermentation for Bacillus thuringiensis HD-1 growth were optimized by orthogonal design and single factor experiments. The results showed that the optimal...
  5. Tobacco Science & Technology, 2011, 12, p. 73-76., ISSN.1002-0861

    Influence of climatic conditions on contents of main chemical components in flue-cured tobacco leaf

    WANG JIAN-WEI(1); ZHANG YAN-LING(1); GUO WEI-MIN(1); CAI XIAN-JIE(1); WANG WEI-CHAO(2); CAO XIAO-TAO(2); LI WEI-GUAN(2); YIN QI-SHENG(1)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Xiangcheng Branch of Xuchang Tobacco Company, Xiangcheng 461700, Henan, P.R. China
    For investigating the influence of climatic conditions on the contents of main chemical components in flue-cured tobacco leaves, experiments on different transplanting time were carried out in Xiangcheng County of Henan Province. The climatic factors...
  6. Tobacco Science & Technology, 2011, 12, p. 9-13., ISSN.1002-0861

    Relationship between physical-chemical indexes and burnt sweet taste of flue-cured tobacco leaves

    XUE CHAO-QUN(1); WANG JIAN-WEI(1); XI JIA-QIN(1); YANG LI-JUN(2); JIANG JUN-TING(3)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Zhumadian Tobacco Company of Henan Province, Zhumadian 463000, Henan, P.R. China; 3. Zhumadian Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Zhumadian 463000, Henan, P.R. China
    Sixty flue-cured tobacco leaf samples were collected from Zhumadian, the relationships between physical-chemical indexes and level of burnt sweet taste were studied with correlation analysis and stepwise regression analysis. The results showed that:...
  7. Tobacco Science & Technology, 2011, 2, p. 25-34., ISSN.1002-0861

    Advance in product harm reduction in tobacco industry: a review

    LIU LI-QUAN(1); ZHOU YA-NING(1); GONG AN-DA(2)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Technology Center, China Tobacco Fujian Industrial Co., Ltd., Xiamen 361004, Fujian, P.R. China
    The progress in products’ harm reduction in tobacco industries at home and abroad since 2004 was reviewed in terms of cigarette blend, processing technology and auxiliary materials, especially in processing technology. It was believed that harmful...
  8. Tobacco Science & Technology, 2011, 2, p. 35-38., ISSN.1002-0861

    Comparison of combustion behavior and gas phase pyrolytic products between flue-cured, Burley and Oriental tobacco

    ZHOU SHUN; XU YING-BO; WANG CHENG-HUI; SHU JUN-SHENG; SHE SHI-KE; TIAN ZHEN-FENG
    Technology Centre, China Tobacco Anhui Industrial Corporation, Hefei 230088, P.R. China
    Micro-scale combustion calorimetry (MCC) and thermogravimetric analysis coupled with Fourier transform infrared spectrometer (TG-FTIR) methods were applied to investigate the combustion behavior of flue-cured, burley and oriental tobaccos, as well as...
  9. Tobacco Science & Technology, 2011, 2, p. 39-42., ISSN.1002-0861

    GC-MS analysis of extracts from Undaria pinnatifida and its application in cigarette

    CHANG CHENG; HU YOU-CHI; ZHAO MING-YUE; HU JUN; LIU SHAN; LIU YANG
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    In order to develop a new natural cigarette flavor, Undaria pinnatifida was respectively extracted by Soxhlet, microwave and supercritical CO2 fluid extractions. The obtained extracts were analyzed by GC/MS and applied into cigarette as a flavor. The...
  10. Tobacco Science & Technology, 2011, 2, p. 43-46., ISSN.1002-0861

    Relationship between equilibrium moisture content and chemical indexes of flue-cured tobacco

    WANG JIAN-MIN(1); HAN MING(1,2); ZHANG XIANG-HUI(1,3); LIU YAN-LING(1); MU LIN(1); LI KANG(1); JI SONG-YI(1)
    1. Zhengzhou Institute of Light Industry, Zhengzhou 450002, P.R. China; 2. Anyang Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Anyang 455004, Henan, P.R. China; 3. Heilongjiang Tobacco Industrial Co., Ltd., Harbin 150001, P.R. China
    In order to investigate the relationship between the chemical indexes and hygroscopicity of flue-cured tobacco, the absorption equilibrium moisture content (AEMC) and desorption equilibrium moisture content (DEMC), total sugar, reducing sugar, total...