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78 results

  1. Tobacco Science & Technology, 2010, 8, p. 34-40., ISSN.1002-0861

    Determination of twenty free amino acids in tobacco leaves by HPLC with pre-column derivatization

    CHENG YONG; CHEN LING; DENG XIAO-CHUN
    Shenzhen Boton Flavours and Fragrances Co., Ltd, Shenzhen 518051, Guangdong, P.R. China
    A method for determining 20 free amino acids in tobacco leaf was established by using 2,4-dinitrofluorobenzene (DNFB) as a derivative reagent, 0.015 mol/L disodium hydrogen phosphate and potassium dihydrogen phosphate as buffer solution and 50%...
  2. Tobacco Science & Technology, 2010, 8, p. 41-45., ISSN.1002-0861

    Effects of filter length and ventilation on transfer behavior of some ester flavors in cigarette

    ZHOU HUI-SHUN(1); ZONG YONG-LI(2); ZHANG JIE(2); PENG SHU-HAI(2); SONG YU-BING(2)
    1. Technology Center, P.R. China Tobacco Jiangxi Industrial Corporation, Nanchang 330096, P.R. China; 2. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    In order to investigate the effects of filter length and ventilation on the transfer behavior of some ester flavors in cigarettes, the said ester flavors were injected into cigarettes with filters of various length and ventilation rates. These...
  3. Tobacco Science & Technology, 2010, 8, p. 46-49., ISSN.1002-0861

    Determination of total mercury in tobacco materials by thermal decomposition and cold atomic absorption spectrometry

    ZHANG XIN-HENG(1); XIE FENG-HUA(2); LI XIU-YAN(2)
    1. Technology Center of Beijing Cigarette Factory, Shanghai Tobacco Group, Beijing 101121, P.R. China; 2. Beijing LabTech Ltd., Beijing 101312, P.R. China
    The contents of total mercury (Hg) in various tobacco materials, such as cut tobacco, filter rod, packaging, flavor, and tipping paper, were determined by thermal decomposition and cold atomic absorption spectrometry. The results showed that: 1) The...
  4. Tobacco Science & Technology, 2010, 8, p. 5-9., ISSN.1002-0861

    Dynamic analysis of strips humidifying process based on diffusion model

    ZHENG SONG-JIN(1,2); LI BIN(1); WANG HONG-SHENG(1); SU HONG-JUN(2)
    1. Key Laboratory of Tobacco Processing Technology, CNTC, Zhengzhou 450001, P.R. China; 2. Technology Center of China Tobacco Hebei Industrial Corporation, Shijiazhuang 050051, P.R. China
    In order to study the absorption of strips and the migration rate of moisture in strips during processing, B2F strips were studied dynamically under a temperature range of 60-80 °C and relative humidity range of 60%-90% by an online device on...
  5. Tobacco Science & Technology, 2010, 8, p. 50-54., ISSN.1002-0861

    Determination of residues of six 2,6-dinitroaniline pesticides in tobacco

    BIAN ZHAO-YANG; TANG GANG-LING; ZHANG HONG-FEI; LI ZHONG-HAO; HU QING-YUAN
    China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China
    In order to accelerate the detection of 2,6-dinitroaniline pesticide residues in tobacco, a method for determining the residues of 2, 6-dinitroaniline pesticides, including flumetralin, pendimethalin, butralin, isopropalin, benfluralin and...
  6. Tobacco Science & Technology, 2010, 8, p. 55-60., ISSN.1002-0861

    Effects of cultivar, crop year and growing area on middle- and microelement contents in flue-cured tobacco and relationships between these elements

    ZHANG SHI-XIANG; WANG JIAN-WEI; LIANG TAI-BO; WEI CHUN-YANG; GUO WEI-MIN
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    In order to investigate their content difference in flue-cured tobacco of different cultivars, crop years and growing areas and the relationship between these elements, the contents of Mn, Fe, Cu, Zn, Ca and Mg in tobacco leaves of C3F from different...
  7. Tobacco Science & Technology, 2010, 8, p. 61-64., ISSN.1002-0861

    Improvement of flue-cured tobacco quality with Bacillus pumilus

    HUANG JING-WEN(1); DUAN YAN-QING(2); ZHE WEI(2); WANG MING-FENG(2); ZHANG KE-QIN(1); YANG JIN-KUI(1)
    1. Laboratory for Conservation and Utilization of Bio-resources, Yunnan University, Kunming 650091, P.R. China; 2. Technology Centre, Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China
    A strain of Bacillus pumilus, Van35, was isolated and screened from the surface of flue-cured tobacco leaves, the microbial agent prepared from it was sprayed on cut tobacco. The treated cut tobacco was fermented at 45 °C and relative humidity...
  8. Tobacco Science & Technology, 2010, 8, p. 65-68., ISSN.1002-0861

    Comparison experiment on cigar wrapper tobaccos

    SHI XIANG-DONG(1); WANG YI-HENG(1); CUI JUN-MING(2); YUAN BO(2)
    1. Henan Agricultural University, Zhengzhou 450002, P.R. China; 2. Tongxiang Tobacco Company of Zhejiang Province, Tongxiang 314500, Zhejiang, P.R. China
    In order to find a solution to the shortage of cigar wrapper tobacco and select quality cigar tobacco cultivars adaptive for growing in Tongxiang, the field comparison experiments between ND1, ND2, ND3, ND4, ND5, American, Cuban and Indonesian...
  9. Tobacco Science & Technology, 2010, 9, p. 25-29., ISSN.1002-0861

    Relationship between steric accessibilities of functional groups in ambergrisoid compounds and their aroma

    HU YONG-HUA; XU YING-BO; WANG CHENG-HUI; GE SHAO-LIN; XIE YING-SONG
    Technology Center of China Tobacco Anhui Industrial Corporation, Hefei 230088, P.R. China
    In order to investigate the relationship between molecular structures of ambergrisoid compounds and their aroma, the parameters of steric accessibility of oxygen atom (SAO) and methyl functional group (SAM) for 28 decalin-type and non-decalin-type...
  10. Tobacco Science & Technology, 2010, 9, p. 30-39., ISSN.1002-0861

    Analysis of pyrolysates of potassium citrate of different pH values

    YUAN QING-ZHAO(1); HUANG XIAN-ZHONG(1); ZHANG YOU-MAO(1); SHEN JING-XUAN(2); HUANG HAI-QUN(2)
    1. Technology Centre, China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, P.R. China; 2. Yunnan Reascend Tobacco Technology (Group) Co., Ltd., Kunming 650106, P.R. China
    In order to investigate the effects of acidity on the pyrolysates of cigarette paper additives, the pyrolysates of potassium citrate solution of pH 3.51, 8.36 and 12.14 at 300, 600 and 900 °C in air were analyzed with pyrolysis-gas...