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22 results

  1. Tobacco Science & Technology, 2012, 10, p. 73-76, ISSN.1002-0861

    Variation analysis of sugar/nicotine ratio in flue-cured tobacco leaves from main growing areas in China

    CHEN Shengli(1,2); ZHANG Yulin(2); ZHANG Zhanjun(2); GUO Shuhua(2); CHEN Fei(1); XU Zicheng(1)
    (1) Tobacco Science College, Henan Agricultural University, Zhengzhou 450002, P.R. China; (2) Shanxian Branch of Sanmenxia City Tobacco Company, Shanxian 472000, Henan, P.R. China
    742 samples were analyzed to investigate the distribution of sugar/nicotine ratio in flue-cured tobacco leaves among different areas, varieties and grades. The results indicated that: sugar/nicotine ratio in the samples ranged widely from 2.47 to...
  2. Tobacco Science & Technology, 2012, 12, p. 33-38, ISSN.1002-0861

    Effects of yellowing and color fixing durations during curing on chemical components in flue-cured tobacco leaves

    JIANG Houlong(1,2); LIU Guoshun(*1); ZHOU Hui(1); HU Hongchao(3)
    (1) College of Tobacco; National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou 450002, P.R. China; (2) Chongqing Tobacco Science Research Institute, Chongqing 400715, P.R. China; (3) Pingdingshan Branch, Henan Province Tobacco Company, Pingdingshan 467000, Henan, P.R. China
    The effects of durations of yellowing and color fixing during curing on chemical components in flue-cured tobacco leaves in a stepping flue-curing barn were investigated. The results showed that: 1) When yellowing duration was prolonged for 12 hours,...
  3. Tobacco Science & Technology, 2012, 5, p. 65-68, ISSN.1002-0861

    Nitrogen metabolism traits of robust flavor style flue-cured tobacco cultivar during senescence stage

    DUAN Wangjun(1,2); LI Dongliang(1); DAI Ya(*1); YANG Tiezhao(*2); ZHANG Xiaoquan(2); LI Ning(1)
    (1) Research and Development Center, China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; (2) Henan Agricultural University, Zhengzhou 450002, P.R. China
    To investigate the physiological and biochemical traits in the formation of robust flavor style, apoplast extraction was used to assay the variations of nitrogen metabolites and the activity of related enzymes during leaf senescence and the ammonia...
  4. Tobacco Science & Technology, 2012, 6, p. 48-51, ISSN.1002-0861

    Synthesis of monomenthyl succinate under microwave radiation

    LIU Shanyu(1); LI Haoliang(1); LI Shufang(1); Zhang Junling(1); LI Shaoping(1); XU Cuilian(2)
    (1) Xuchang Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Xuchang 461000, Henan, P.R. China; (2) College of Sciences, Henan Agricultural University, Zhengzhou 450002, P.R. China
    In order to find a better method for synthesizing monomenthyl succinate, the compound was synthesized by subjecting the starting materials, succinic anhydride and menthol to microwave radiation in the presence of HClO4-SiO2 as a catalyst. The...
  5. Tobacco Science & Technology, 2012, 6, p. 80-83, ISSN.1002-0861

    Optimization of process for extracting starch from flue-cured tobacco leaves

    WANG Tao; HE Fan; TIAN Binqiang; SHI Longfei; LIU Huijie; SHI Panpan; GONG Changrong*
    College of Tobacco Science, Henan Agricultural University, Zhengzhou 450002, P.R. China
    In order to reveal the structure and properties of tobacco starch and reduce its content in flue-cured tobacco leaf, the extraction conditions of starch from fresh leaves were optimized with response surface methodology. The results showed that the...
  6. Tobacco Science & Technology, 2012, 7, p. 81-85, ISSN.1002-0861

    Effects of nitrogen application rates on tissue structure and cell development of flue-cured tobacco leaves

    ZHI Lei(1); LUO Dingqi(2); XIONG Ying(1); ZHANG Yonghui(2); LEI Xiao(2); SHI Xiangdong(*1)
    (1) National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou 450002, P.R. China; (2) Luzhou Tobacco Company of Sichuan Province, Luzhou 646000, Sichuan, P.R. China
    The tissue structure and cell development of flue-cured tobacco leaves were studied in field at different levels of nitrogen fertilizer application with paraffin method and electron microscopic chemical method. The results showed that: 1) nitrogen...
  7. Tobacco Science & Technology, 2011, 1, p. 43-47., ISSN.1002-0861

    Structure verification and thermal decomposition kinetics of β-ionone and β-cyclodextrin inclusion compound

    JI XIAO-MING(1); LIU YUN(2); SU CHANG-TAO(1); ZHAO MING-QIN(1)
    1. College of Tobacco Science, Henan Agriculture University, Zhengzhou 450002, P.R. China; 2. Baoji Tobacco Company, Baoji 721000, Shaanxi, P.R. China
    An inclusion compound of β-ionone and β-cyclodextrin was prepared from their saturated solution, analyzed by thermogravimetric analyzer, differential thermal analyzer and IR spectrometer, and applied to cigarette as a flavor. The results showed that:...
  8. Tobacco Science & Technology, 2011, 8, p. 35-38., ISSN.1002-0861

    Effects of steam blasting on chemical components and microscopic structure of tobacco stem

    SONG GUANG-FU(1); LI GANG(2); LI DONG-LIANG(1); WU YAN(1,3); DAI YA(1); LIU YUAN-FA(3)
    1. Technology Center of China Tobacco Chuanyu Industrial Corporation, Chengdu 610066, P.R. China; 2. Key Laboratory of Renewable Energy of Ministry of Agriculture, Henan Agricultural University, Zhengzhou 450002, P.R. China; 3. School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, P.R. China
    In order to evaluate the effects of steam blasting on the physical and chemical properties of tobacco stem, the routine chemical components, aromatic components and microscopic structure of tobacco stem blasted under different pressure conditions...
  9. Tobacco Science & Technology, 2010, 12, p. 8-11., ISSN.1002-0861

    Selection of representative indexes for strip structure

    HE JIE-WANG(1); WANG MAN(2); XIE HAO(1); CHEN LIANG-YUAN(3); WU FENG-GUANG(1); YAN TIE-JUN(1)
    1. Technology Center of China Tobacco Hubei Industrial Co., Ltd., Wuhan 430052, P.R. China; 2. Tobacco College of Henan Agriculture University, Zhengzhou 450002, P.R. China; 3. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    To select the representative indexes for strip structure, 290 strip samples were collected from 12 tobacco redrying factories. Nine indicators for strip structure were clustered with systematic cluster analysis and grey incidence cluster analysis,...
  10. Tobacco Science & Technology, 2010, 6, p. 44-50., ISSN.1002-0861

    Synthesis of 1,2-O-Propylidene-3,5-O-di(phenylethenoxylcarbonyl succinyl)-D-xylofuranose and its application in cigarette

    LIU YUN; JI XIAO-MING; ZHAO MING-QIN; LIU LE; LU YE
    College of Tobacco Science, Henan Agriculture University, Zhengzhou 450002, P.R. China
    1,2-O-Propylidene-3,5-O-di(phenylethenoxylcarbonyl succinyl)-D-xylofuranose was synthesized from 1,2-O-propylidene-α-D-xylofuranose and phenylethyl monosuccinate with 4-dimethylaminopyridine (4-DMAP) as a catalyst and N, N’-dicyclohexylcarbodiimide...