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74 results

  1. Tobacco Science & Technology, 2011, 8, p. 52-54., ISSN.1002-0861

    Purification of chlorogenic acid in extracts of waste and inferior tobacco leaves

    GU JUN-PING(1,2); WEI WAN-ZHI(1)
    1. State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, P.R. China; 2. Technology Center of China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, P.R. China
    The effects of experimental conditions, such as injected solution concentration, concentration and volume of elution solution, for column chromatography, and sample solution’s pH value, extracting time and number of repetitions on the purification of...
  2. Tobacco Science & Technology, 2011, 8, p. 55-61., ISSN.1002-0861

    Study on nonaqueous phase Maillard reaction of glucose / L-lysine model system

    YANG JI(1,2); YANG LIU(1); GAO TAO(1); WU YI-QIN(1); CAO QIU-E(2)
    1. Technology Center of Hongta Tobacco (Group) Co., Ltd., Yuxi 653100, Yunnan, P.R. China; 2. College of Chemical Science and Engineering, Yunnan University, Kunming 650091, P.R. China
    The thermogravimetric characteristics of glucose, L-lysine and their mixture were determined by thermogravimetry. The pyrolytic products of glucose and L-lysine mixture at 5 temperature ranges were analyzed by the combination of thermogravimetry,...
  3. Tobacco Science & Technology, 2011, 8, p. 73-78., ISSN.1002-0861

    Effects of maturity of harvested flue-cured tobacco on its polyphenol content and composition

    LIU YANG(1); GAO LI-JUN(2); CAI XIAN-JIE(1); SONG JI-ZHEN(1); YIN QI-SHENG(1); WANG WEI-CHAO(3); ZHANG YAO-XU(4)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Xuchang Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Xuchang 461000, Henan, P.R. China; 3. Xiangcheng Branch of Xuchang Tobacco Company, Xiangcheng 461700, Henan, P.R. China; 4. Pingdingshan Tobacco Company, Pingdingshan 467000, Henan, P.R. China
    The polyphenol contents and composition in fresh and cured tobacco leaves harvested at different maturity stages (unripe, physiological mature, technical mature and over-ripe) were studied. The results showed that: 1) The polyphenol content topped at...
  4. Tobacco Science & Technology, 2011, 8, p. 84-88., ISSN.1002-0861

    Effects of drought stress on growth, physiological and biochemical characteristics of flue-cured tobacco from seedlings cultured by different seedbed systems

    CHEN JIE-YU(1); ZHOU JI-HENG(1); DENG XIAO-GANG(2); ZHANG YI-YANG(1); LI CHUN-LIN(2); NIU LI-NA(1); JIANG ZI-QIN(1), CHEN HAO(1
    1. Institute of Tobacco, Hunan Agriculture University, Changsha 410128, P.R. China; 2. Yuxi Tobacco Company of Yunnan Province, Yuxi 653100, Yunnan, P.R. China
    For investigating the influence of drought stress on the growth, physiological and biochemical characteristics of transplanted seedlings cultured in different seedbed systems, the pot trials with controlled soil moisture content were conducted to...
  5. Tobacco Science & Technology, 2011, 8, p. 9-12., ISSN.1002-0861

    Relationships between tow crimp and physical characteristics of filter rod

    CHANG JIAN-YONG(1);CHANG JI-HENG(2); SHENG PEI-XIU(3); SHI ZHONG-JIN(4); HAO RUI(4)
    1. Henan Pharmaceutical School, Kaifeng 475001, Henan, P.R. China; 2. Key Laboratory of Tobacco Processing Technology, CNTC, Zhengzhou 450001, P.R. China; 3. Nantong Cigarette Filter Co., Ltd., Nantong 226001, Jiangsu, P.R. China; 4. Heilongjiang Tobacco Industrial Co., Ltd., Harbin 150001, P.R. China
    In order to investigate the influence of tow crimp on the physical characteristics of filter rods, the change of tow’s crimp and its resilience rate in filter rod were analyzed, and their relationships to the weight, draw resistance and hardness of...
  6. Tobacco Science & Technology, 2011, 9, p. 37-40., ISSN.1002-0861

    Influencing factors and improvement of determination of hydrogen cyanide in mainstream cigarette smoke by autoanalyzer

    QU XIAN-ZHONG; CHEN KAI-BO; XU ZHI-QIANG; WANG CHENG-HUI
    Technology Center, China Tobacco Anhui Industrial Corporation, Hefei 230088, P.R. China
    In order to determine hydrogen cyanide (HCN) in mainstream cigarette smoke with autoanalyzer more accurately, the effects of formaldehyde, acetaldehyde, acetone and acrolein, as well as the concentration of formaldehyde on the determination system...
  8. Tobacco Science & Technology, 2011, 9, p. 5-11., ISSN.1002-0861

    Removing pectin in tobacco stems for reconstituted tobacco manufacturing

    ZHANG JUN(1,2); CAO QIAN(1); LI XIN-SHENG(3); CHEN MIN(1); WANG JUN(1)
    1. College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P.R. China; 2. Technology Center, Shanghai Tobacco (Group) Corporation, Key Laboratory of Cigarette Smoke Research of CNTC, Shanghai 200082, P.R. China; 3. Taicang Haiyan Company of Tobacco Sheet, Shanghai Tobacco (Group) Corporation, Jiangsu 215433, P.R. China
    In order to reduce the negative effect of pectin on the smoking taste of reconstituted tobacco, the improved sulfuric acid-carbazole analysis method with desugarization was used to quantitatively evaluate the effectiveness of some extractive agents,...
  9. Tobacco Science & Technology, 2011, 9, p. 50-53., ISSN.1002-0861

    Evaluation of inter-substitution among tobacco leaves with multivariate statistical test

    DU WEN; ZHANG QI-LONG; YI JIAN-HUA; HUANG ZHEN-JUN; REN JIAN-XIN
    China Tobacco Hunan Industrial Co., Ltd., Changsha 410007, P.R. China
    In order to evaluate the inter-substitution among tobacco leaves, nine chemical components, including total sugar, total alkaloids, total nitrogen, cellulose, starch, polyphenols, ash, petrol-ether extract and total volatile bases, in 2482 flue-cured...
  10. Tobacco Science & Technology, 2011, 9, p. 54-60., ISSN.1002-0861

    Effects of filter ventilation rate on deliveries of some aromatic components in mainstream cigarette smoke

    CAI JUN-LAN(1); HAN BING(2); ZHANG XIAO-BING(1); ZHAO XIAO-DONG(1); LIU HUI-MIN(1); XIE FU-WEI(1)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, P.R. China
    In order to study the effects of filter ventilation rates on the aromatic component deliveries in mainstream cigarette smoke, the deliveries of routine chemical components and 32 aromatic components in gas phase and particulate phase of mainstream...