Search Results

85 results

  1. Tobacco Science & Technology, 2012, 1, p. 43-46., ISSN.1002-0861

    Determination of K+, Ca2+, and Mg2+ in tobacco with dry ashing-ion chromatography

    WANG Ying(1); ZHANG Wei(1); LI Xue(1); LI Li(2); WEI Zhao(3); TANG Gangling(1); HU Qingyuan(1)
    (1) China National Tobacco Quality Supervision & Test Center, Zhengzhou 450001, P.R. China; (2) Technology Center, China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; 3. Technology Center, Shenzhen Cigarette Factory, Shenzhen 518109, Guangdong, P.R. China
    A method for simultaneously determining the contents of potassium, calcium and magnesium in tobacco with dry ashing-ion chromatography was developed. The results showed that: the relative standard deviations of potassium, calcium and magnesium were lower ...
  2. Tobacco Science & Technology, 2012, 10, p. 46-50, 84, ISSN.1002-0861

    Effects of material parameters on deliveries of seven harmful components in cigarette smoke

    ZHAO Le(1); PENG Bin(1); YU Chuanfang(1); HE Shujie(2); LIU Kejian(1); ZHAO Xiaodong(1); WANG Hongbo(1); GUO Jizhao(1); YAN Quanping(1); YU Jingjing(1); LI Ping(1); XIANG Nengjun(3); MENG Zhaoyu(3); CUI Tao(2); YANG Jun(2); NIE Cong(*1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; (3) Hongta Tobacco (Group) Co., Ltd., Yuxi 653100, Yunnan, P.R. China
    To investigate the effects of material parameters on the deliveries of seven harmful components in cigarette smoke, the deliveries of CO, HCN, NNK, NH 3, BaP, phenol and crotonaldehyde, in mainstream smoke of forty cigarette samples made with different ...
  3. Tobacco Science & Technology, 2012, 4, p. 72-75, ISSN.1002-0861

    Structural characteristic analysis and mRNA expression of Cathepsin B gene in Nicotiana tabacum

    ZHAO Min(1); WANG Changguo(1); LIU Jin(2); KOU Mingyu(1); LI Ning(1); WU Yan(1); DAI Ya(*1); XIA Qingyou(*2,3)
    (1) Technology Center of China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; (2) College of Biotechnology, Southwest University, Chongqing 400715, P.R. China; (3) Institute of Agronomy and Life Science, Chongqing University, Chongqing 400030, P.R. China
    In order to clarify the function of Cathepsin B gene (NbCathB) in Nicotiana tabacum, the sequence of NbCathB was analyzed. The NbCathB ORF (Open Read Frame) was 951 bp in length and encoded 316 amino acids with the predicted molecular weight of 35.2 kD ...
  4. 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 ...
  5. Tobacco Science & Technology, 2012, 7, p. 17-23, ISSN.1002-0861

    Correlation analysis between appearance quality and sensory quality of Henan flue-cured tobacco

    YAN Hongyang(1); YAN Hongxi(2); JI Songyi(*3,4); HAN Ming(5); LEI Jinshan(6); YAN Keyu(7)
    (1) Staff Dev. Inst. of CNTC, Zhengzhou 450008, PRC; (2) Hangzhou Cig. Factory, CNTC Zhejiang Ind. Co., Ltd., Hangzhou 310008, PRC; (3) CNTC Yunnan Kunchuan Reascend Science & Technology Co., Ltd., Kunming 650106, PRC; (4) Yunnan Reascend Tobacco Technology (Group) Co., Ltd., Kunming 650106, PRC; (5) Anyang Cig. Factory, CNTC Henan Ind. Co., Ltd., Anyang 455004, PRC; (6) Changcheng Cigar Factory, CNTC Chuanyu Ind. Co., Ltd., Shifang 618400, PRC; (7) Zhengzhou Uni. of Light Industry, Zhengzhou 450002, PRC
    Taking a complete set of grading national standard samples of Henan flue-cured tobacco duplicated from the national standards as experimental material, the appearance and sensory qualities of each grade sample were quantitatively evaluated according to ...
  6. Tobacco Science & Technology, 2012, 7, p. 40-42, ISSN.1002-0861

    Determination of cellulose in tobacco with flow analyzer

    SHANG Jun(1); LÜ Xiangmin(1); WANG Peng(*1,2); HE Rong(1); WEN Peng(1); ZHOU Wei(1)
    (1) Chongqing Tobacco Industrial Co., Ltd., Chongqing 400060, P.R. China; (2) China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China
    A flow analysis method for determining the cellulose in tobacco was developed. Cellulose was hydrolyzed by cellulase and the formed glucose was determined by flow analyzer. The results showed that: 1) The optimal hydrolysis conditions were: tobacco powder ...
  7. Tobacco Science & Technology, 2012, 7, p. 46-49, ISSN.1002-0861

    Application of near infrared spectroscopic techniques in stability analysis of tobacco in processing

    DENG Fada(1); LI Dongliang(*1); WEN Ruoyu(1); LI Feiyu(2); SHI Fengcheng(1)
    (1) Technology R&D Center of China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; (2) Fuling Cigarette Factory of Chongqing Tobacco Industrial Co., Ltd., Fuling 408000, Chongqing, P.R. China
    In order to study the stability of chemical components in tobacco in processing, the near infrared (NIR) spectra of cut tobacco were online collected at the outlet of HXD drier and then processed by continuous wavelet transformation. The relationships ...
  8. Tobacco Science & Technology, 2012, 7, p. 72-75, ISSN.1002-0861

    Analysis of differential protein in tobacco leaves sprayed with microbial agent MP

    ZHAO Min(1); WANG Changguo(1); LIU Jin(2); KOU Mingyu(1); LI Ning(1); WU Yan(1); DAI Ya(*1); XIA Qingyou(*2)
    (1) Technology Center, China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; (2) College of Biotechnology, Southwest University, Chongqing 400715, P.R. China
    In order to find out the effects of Microbial agent MP (Bacillus magaterium) spraying on the quality of tobacco leaves, two-dimensional gel electrophoresis (2-DE) was used to analyze the differences of protein expression between tobacco leaves sprayed ...
  9. Tobacco Science & Technology, 2011, 11, p. 40-43., ISSN.1002-0861

    Effects of expanded cut stem, expanded cut tobacco and reconstituted tobacco inclusion on deliveries of harmful components in mainstream cigarette smoke

    PENG BIN(1); LI XU-HUA(2); ZHAO LE(1); NIE CONG(1); XIE FU-WEI(1); ZHANG GAO-FENG(3); ZHU YU(3); XU HENG(3); HE SHU-JIE(3); MENG ZHAO-YU(4); XIANG NENG-JUN(4)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, P.R. China; 3. China Tobacco Chuanyu Industrial Co., Ltd., Chengdu 610066, P.R. China; 4. Hongta Tobacco (Group) Co., Ltd., Yuxi 653100, P.R. China
    In order to investigate the effects of expanded cut stem, expanded cut tobacco or reconstituted tobacco inclusion on the deliveries of harmful components in mainstream cigarette smoke, 15 cigarette samples containing different proportions of expanded cut ...
  10. Tobacco Science & Technology, 2011, 7, p. 52-55., ISSN.1002-0861

    Determination of calcium and magnesium in cigarette paper with autoanalyzer

    WANG PENG; SHANG JUN; LÜ XIANG-MIN; ZHU LI-JUN; LI LI
    China Tobacco Chuanyu Industrial Corporation, Chengdu 610066, P.R. China
    The effects of digestion solution volume and digestion temperature on the results of calcium and magnesium contents in cigarette paper determined by an autoanalyzer were investigated, and 20 cigarette paper samples were detected paralleled with ionic ...