Search Results

39 results

  1. Tobacco Science & Technology, 2012, 1, p. 29-33., ISSN.1002-0861

    Effects of moisture content in cut tobacco on deliveries of 7 harmful compounds in mainstream cigarette smoke

    LIU Zhihua(1); YANG Song(2); WANG Kunmiao(1); HE Pei(1), LI Fan(2); CHEN Yongkuan(1); MIAO Mingming(1)
    (1) Key Lab of Tobacco Chemistry of Yunnan, Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China; (2) School of Pharmaceutical Science, Kunming Medical University, Kunming 650031, P.R. China
    To investigate the influence of moisture content in cut tobacco on the deliveries of 7 harmful compounds, including CO, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), benzo[a]pyrene (B[a]P), HCN, NH3, phenol and crotonaldehyde, in mainstream...
  2. Tobacco Science & Technology, 2012, 10, p. 36-40, ISSN.1002-0861

    Application of multiple factor analysis (MFA) in cigarettes style character analyzing

    LU Longjian(1); CHEN Lei(2); YU Ling(3); WU Da(*3); WANG Mingfeng(4); LIU Baizhan(3); ZHU Zhongliang(*1)
    (1) Department of Chemistry, Tongji University, Shanghai 200092, P.R. China; (2) Shanghai Peony Flavor & Fragrance Co., Ltd., Shanghai 201203, P.R. China; (3) Shanghai Tobacco Group Co., Ltd., Shanghai 200082, P.R. China; (4) Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China
    To analyze the character of cigarettes style, the chemical components in smoke of six cigarette brands from Shanghai, Yunnan and Henan were grouped into 4 categories (spicy, sweet, fruit and fresh notes) according to their flavor characters. The...
  3. Tobacco Science & Technology, 2012, 10, p. 61-64, ISSN.1002-0861

    Changes of degradation products of carotenoids and cembranoids in B4F flue-cured tobacco during redrying

    YIN Gengyun(1); XU Shitao(1); RUAN Xin(2); WEI Jie(1); LIU Jinyun(1); HOU Ducheng(*2)
    (1) Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China; (2) Tianfu Tobacco Redrying Co., Ltd., Hongyun Honghe Group, Qujing 655001, Yunnan, P.R. China
    The changes of degradation products of carotenoids and cembranoids in B4F flue-cured tobacco during redrying were studied with orthogonal experimental design. The results showed that: 1) The content of dihydroactinidiolide was remarkably affected by...
  4. Tobacco Science & Technology, 2012, 11, p. 13-16, ISSN.1002-0861

    Application of digital image analysis in determination of strip structure

    XU Dayong(1); Yu Na(1); DENG Guodong(1); LI Shanlian(1); SHEN Xiaofeng(2); JIANG Linzhong(3); LI Xinfeng(3); JIANG Huanyuan(4); DU Jinsong(*1)
    (1) Key Laboratory of Tobacco Processing Technology of CNTC, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China; (3) Longyan Golden Leaf Redrying Co., Ltd., Longyan 364102, Fujian, P.R. China; (4) China Tobacco Fujian Industrial Co., Ltd., Xiamen 364022, Fujian, P.R. China
    A new method for determining strip structure with digital image analysis was discussed. The results showed that: 1) digital image analysis method could be used to determine strip structure; the test precision of the method ranged from 1.31 to 31.91...
  5. Tobacco Science & Technology, 2012, 4, p. 5-8, ISSN.1002-0861

    Characterization of cut tobacco size distribution based on fractal theory

    YU Na(1); SHEN Xiaofeng(2); XU Dayong(1); LI Huajie(3); CHANG Mingbin(3); DU Jinsong(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Technology Center of Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China; (3) Technology Center of China Tobacco Fujian Industrial Co., Ltd., Xiamen 361004, Fujian, P.R. China
    In order to study the characteristics of cut tobacco size distribution, the correlation equation of accumulative mass percentage of cut tobacco under test sieve versus fractal dimension was derived, and the relationship between loss of tobacco from...
  6. Tobacco Science & Technology, 2012, 4, p. 51-55, ISSN.1002-0861

    Comparison on cytotoxicity of cigarette smoke components trapped at each stage in cambridge filter-solvent-solvent systems

    YAO Jianhua; MI Qili; GENG Yongqin; YANG Yekun; HUANG Haitao; LI Xuemei; MIAO Mingming; TANG Ping
    Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China
    In order to investigate the effects of cigarette smoke trapping on in vitro cytotoxicity test, 3 kinds of trapping systems, including Cambridge filter-pH7.0 PBS-acetone, Cambridge filter-pH7.2 PBS-ethyl acetate and Cambridge filter-pH7.4 PBS-70 %...
  7. Tobacco Science & Technology, 2012, 4, p. 56-59, 66, ISSN.1002-0861

    Analysis of residues of famoxadone and fenamidone in tobacco

    ZHU Baokun(1); LIAO Yuqi(2); JIANG Juxing(1); WANG Sujuan(1); LIU Ya(1); XIA Jianjun(*1)
    (1) Hongyun-Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China; (2) School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
    A method for fast testing the famoxadone and fenamidone residues in tobacco leaves with ultra-high performance liquid chromatography was developed by using acetonitrile as an extraction solvent. Twenty-two flue-cured tobacco samples were tested. The...
  8. Tobacco Science & Technology, 2012, 5, p. 5-9, 23, ISSN.1002-0861

    Secondary casing application in Virginia type cigarette

    YAN Keliang(1); WU Yi(1); ZENG Xiaoying(1); XU Guowang(2); WANG Chao(1); HU Weiyao(1); LI Qinghua(1)
    (1) Technology Center, Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming 650202, P.R. China; (2) National Chromatographic Research & Analysis Center, Dalian Institute of Chemical Physics, CAS, Dalian 116023, Liaoning, P.R. China
    In order to study the secondary casing (adding functional casing and brand specific casing) application in Virginia type cigarette, the appropriate blending proportion of three biological agents was investigated, the mechanism of functional casing...
  9. Tobacco Science & Technology, 2012, 5, p. 74-78, ISSN.1002-0861

    Isolation, identification and characteristics of nicotine-degrading bacterium strain 5-28

    CHEN Chen(1,2); MA Guanghui(2); LEI Liping(3); ZHOU Wei(2); SHEN Xingjia(1); YANG Jinkui(*2)
    (1) Biological and Chemical Engineering College, Jiangsu University of Science and Technology, Zhenjiang 212018, Jiangsu, P.R. China; (2) Laboratory for Conservation and Utilization of Bio-resources, Yunnan University, Kunming 650091, P.R. China; (3) Yunnan Academy of Tobacco Agricultural Sciences, Yuxi 653100, Yunnan, P.R. China
    In order to solve the problem of higher nicotine content in flue-cured tobacco leaves produced in some areas, bacterium strain 5-28, which had the potential of degrading nicotine was isolated from tobacco growing soil in Mile, Yunnan using nicotine...
  10. Tobacco Science & Technology, 2012, 6, p. 63-66, 71, ISSN.1002-0861

    Effects of smoking regime on ammonia delivery in mainstream cigarette smoke

    ZHANG Xia; XU Yong; LIU Wei; JIN Yongcan; CAO Hongyun; HU Shouyi; MA Yan; CHEN Yongkuan; MIAO Mingming
    Key Laboratory of Tobacco Chemistry, Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China
    In order to investigate the influences of smoking regime on the ammonia delivery in mainstream cigarette smoke, 4 cigarette samples were smoked under different smoking regimes on smoking machine, and the ammonia deliveries in mainstream smoke of...