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  1. Tobacco Science & Technology, 2012, 11, p. 33-37, ISSN.1002-0861

    Application of fuzzy judgment and Euclidean distance method in evaluation of chemical components in flue-cured tobacco leaf

    HU Zhongsheng; CHEN Jingbo; ZHOU Xinghua; ZHAO Qibai*; XU Zhiqiang
    China Tobacco Jiangsu Industrial Co., Ltd., Nanjing 210019, P.R. China
    In order to scientifically assess the chemistry of tobacco leaf, 9 chemical indices (including nicotine, total sugar, reducing sugar, total nitrogen, potassium, chlorine, sugar/nicotine ratio, nitrogen/nicotine ratio and potassium/chlorine ratio) of...
  2. Tobacco Science & Technology, 2012, 11, p. 38-41, 50, ISSN.1002-0861

    Combustion characteristics of flue-cured tobacco and its kinetic analysis

    XIA Ming(1); LI Jinguang(1); QIAO Guobao(1); JIANG Jianjun(1); HU Yonghua(2)
    (1) Chuzhou Cigarette Factory, China Tobacco Anhui Industrial Co., Ltd., Chuzhou 239000, Anhui, P.R. China; (2) Technology Center, China Tobacco Anhui Industrial Co., Ltd., Hefei 230088, P.R. China
    In order to investigate the effects of combustion conditions on the thermal behavior of flue-cured tobacco, the thermal decomposition and combustion characteristics of flue-cured tobacco at different oxygen concentrations and heating rates were...
  3. Tobacco Science & Technology, 2012, 11, p. 42-44, ISSN.1002-0861

    Relationships between stalk position of tobacco leaves and deliveries of 7 harmful compounds in mainstream cigarette smoke

    PENG Bin; ZHAO Le; SUN Xuehui; SHANG Pingping; LI Xiang; NIE Cong
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    In order to investigate the relationships between stalk positions and the deliveries of 7 harmful compounds, including CO, HCN, NNK, NH3, B[a]P, phenol and crotonaldehyde, in mainstream cigarette smoke, cigarettes of the same hardness made of each...
  4. Tobacco Science & Technology, 2012, 11, p. 45-50, ISSN.1002-0861

    Simultaneous determination of 6 antiseptics in tobacco with LC-MS/MS method

    YANG Fei; BIAN Zhaoyang; TANG Gangling; HU Qingyuan
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    A method basing on high performance liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed for determining the antiseptic residues in tobacco. The analytes extracted from tobacco samples were separated on C18 column (150 mm×2.1 mm×3...
  5. Tobacco Science & Technology, 2012, 11, p. 5-9, ISSN.1002-0861

    Comparison of processing quality of cut strips dried with two different technologies

    WANG Zongying(1); PENG Juncang(1); XU Lei(1); WANG Jianqiang(1); CAO Jieqiong(2); LEI Dongfeng(1)
    (1) Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi, P.R. China; (2) Baoji Cigarette Factory, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721000, Shaanxi, P.R. China
    To investigate the effects of drying means on the processing quality of dried cut strips, the change trends of physical indexes, sensory quality, chemical components, smoke indexes and seven harmful components of cut strips after cylinder drying and...
  6. Tobacco Science & Technology, 2012, 11, p. 51-55, ISSN.1002-0861

    Synthesis and pyrolysis of 6-O-acetyl-2, 3, 4-tri-O-isovaleryl-α-D-glucopyranose

    ZHENG Saijing(1); BO Fei(2); FANG Song(2); LIU Baizhan(1); LI Yougui(*2)
    (1) Technical Center, Shanghai Tobacco Group Co., Ltd., Shanghai 200082, P.R. China; (2) School of Chemical Engineering, Hefei University of Technology, Hefei 230009, P.R. China
    Methyl-6-O-TBDPS-α-D-glucopyranoside (2) was selectively synthesized from methyl-α-D-glucopyranoside with high yield, and then isovalerylated, followed by deprotection, acetylation of 6-site and α-site methoxyl group to form Compound 6....
  7. Tobacco Science & Technology, 2012, 11, p. 56-59, ISSN.1002-0861

    Synthesis of neonicotinoid compounds

    WANG Taotao(1); LI Dandan(1); PENG Yefang(1); LIU Chongbo(2); WEN Huiliang(*1)
    (1) State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China; (2) School of Environment and Chemical Engineering, Nanchang Hangkong University, Nanchang 330063, P.R. China
    N-(Diphenylmethylene)-3-(aminomethyl) pyridine was first synthesized from 3-(aminomethyl) pyridine and benzophenone with toluene as water-carrying agent, then anatabine was prepared from the synthesized compound. Anabasine, N-methylanatabine and...
  8. Tobacco Science & Technology, 2012, 11, p. 60-63, ISSN.1002-0861

    Transfer behavior of maleic hydrazide residue in cigarette during smoking

    ZHANG Hongfei(1); TANG Gangling(1); LOU Xiaohua(2); CHEN Tao(3); GAO Chuanchuan(2); BAI Junchao(3)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) Guizhou Tobacco Quality Supervision & Test Station, Guiyang 550025, P.R. China; (3) Chongqing Tobacco Quality Supervision & Test Station, Chongqing 400023, P.R. China
    The transfer behavior of maleic hydrazide (MH) in cigarette during smoking was studied by adding internal standard. The pyrolysis mechanism of MH was studied with pyrolysis technology. The results showed that: 1) The transfer rate of MH into...
  9. Tobacco Science & Technology, 2012, 11, p. 64-68, ISSN.1002-0861

    Surface cell morphological characteristics of cured tobacco leaves from typical flue-cured tobacco growing areas in China

    GUO Weimin; ZHANG Yanling; CAI Xianjie; ZHANG Shixiang; WANG Jianwei; LIU Yang; YIN Qisheng*
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    In order to investigate the surface cell morphological characteristics of flue-cured leaves and their differences between growing areas in China, the surface microscopic images of C3F cured leaves collected from different typical growing areas were...
  10. Tobacco Science & Technology, 2012, 11, p. 69-73, ISSN.1002-0861

    Geostatistics-based evaluation of main nutrients in Qujing tobacco planting soil

    LI Qiang(1); ZHOU Jiheng(*1,2); ZHANG Yiyang(1); ZHANG Zhengyan(2); XIE Yan(2)
    (1) Tobacco Research Institute, Hunan Agricultural University, Changsha 410128, P.R. China; (2) Qujing Branch of Yunnan Province Tobacco Company, Qujing 655000, Yunnan, P.R. China
    In order to investigate the spatial distribution of main nutrients in tobacco planting soil, 3650 soil samples were collected with GPS technique in Qujing. The overall characteristics and spatial variation of main nutrients in the soil were analyzed...