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  2. Tobacco Science & Technology, 2012, 3, p. 60-63., ISSN.1002-0861

    Correlations of ammonia in mainstream cigarette smoke with ammonia, nitrite and nitrate in tobacco leaf

    YU Hongxiao; ZHAO Yantang; XU Haitao; ZHAO Yueli; MA Qiang
    Technology Center of China Tobacco Shandong Industrial Co., Ltd., Jinan 250100, P.R. China
    In order to investigate the correlations between the delivery of ammonia in mainstream cigarette smoke and the contents of nitrite, nitrate and ammonia in tobacco leaf, the delivery of ammonia in mainstream smoke and the contents of nitrite, nitrate...
  3. Tobacco Science & Technology, 2012, 3, p. 64-66, ISSN.1002-0861

    Determination of chlorine in tobacco soil with continuous flow analysis

    ZHANG Haiyan; TAO Xiaoqiu; HUANG Mei
    Sichuan Tobacco Quality Supervision & Test Station, Chengdu 610041, P.R. China
    Aiming at the wide pH range and low chlorine content in Sichuan tobacco soil, a continuous flow analysis method for determining chlorine in tobacco soil was developed. The chlorine in tobacco soil was extracted with water and separated by centrifugal...
  4. Tobacco Science & Technology, 2012, 3, p. 67-74, ISSN.1002-0861

    Variance analysis of carotenoid and its degradation product contents in flue-cured tobacco of different appearance

    XI Yuanxiao(1,2); LIU Yang(1); LI Feng(1); YANG Jun(1); WANG Xinmin(1); WEI Chunyang(1); SONG Jizhen(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Shandong Weifang Tobacco Company, Weifang 261061, Shandong, P.R. China
    The contents of carotenoid and its degradation products were determined by HPLC and GC/MS, respectively. The results showed that: 1) The contents of lutein, β-carotene and carotenoid increased with the darkening of leaf color, decreased with the...
  5. Tobacco Science & Technology, 2012, 3, p. 75-78, ISSN.1002-0861

    Effects of barn types on quality of Yunyan85 cured leaves

    LI Ping; GUO Qunzhao; PENG Guoxun
    Liangshan State Company of Sichuan Provincial Tobacco Corporation, Xichang 615000, Sichuan, P.R. China
    For studying the effects of barn types on cured tobacco leaf quality, the traditional barn (c1), upgraded conventional curing barns (c2) and down draught bulk curing barn (c3) were compared. The results showed that the barns in the order of the...
  6. Tobacco Science & Technology, 2012, 3, p. 79-82, ISSN.1002-0861

    Identification of Ralstonia solanacearum isolated from Burley planted soil and its biovars

    WU Weiling(1); ZHANG Dinggui(2); YANG Shuiying(3); WANG Han(1); LI Hong(1); LI Zhenlun(1)
    (1) College of Resource and Environment of Southwest University, Chongqing 400716, P.R. China; (2) Dazhou Branch of Sichuan Province Tobacco Company, Dazhou 635006, Sichuan, P.R. China; (3) College of Plant Protection of Southwest University, Chongqing 400716, P.R. China
    In order to establish a method which is rapid and low in cost, for isolating and identifying the viable cells of Ralstonia solanacearum E.F. Smith (R. solanacearum) in burley planted soil, a semiselective medium (PCCG) combined with polymerase chain...
  7. Tobacco Science & Technology, 2012, 4, p. 13-15, 19, ISSN.1002-0861

    Effects of application means of paper-making process reconstituted tobacco on its utilization and physical-chemical indexes of cigarette

    ZHANG Zhigang(1); XU Shuhong(1); XIONG Anyan(2)
    (1) Xinzheng Cigarette Factory, China Tobacco Henan Industrial Co., Ltd., Xinzheng 451150, P.R. China; (2) Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, P.R. China
    In order to improve its utilization, the outcomes of paper-making process reconstituted tobacco being mixed into tobacco blend in strips form and cut strips form, and going through pneumatic drying and thin plate drying were compared in terms of its...
  8. Tobacco Science & Technology, 2012, 4, p. 16-19, ISSN.1002-0861

    An identification-free self-adaptive control scheme for tobacco casing and flavoring processes

    CAO Qi(1); HE Shanjun(2); LIN Miaoqiao(1); MA Qingwen(1); LIN Tianqin(1)
    (1) Longyan Tobacco Industrial Co., Ltd., Longyan 364000, Fujian, P.R. China; (2) Xiamen Tobacco Industrial Co., Ltd., Xiamen 361026, Fujian, P.R. China
    The traditional PID control in tobacco casing and flavoring systems cannot respond to significant tobacco flow variations steadily and accurately, which results in uneven casing and flavoring distribution in processed cut tobacco. Therefore, an...
  9. Tobacco Science & Technology, 2012, 4, p. 28-32, ISSN.1002-0861

    Determination of hydrogen peroxide in mainstream cigarette smoke by highly selective fluorescence method with Amplex Red/HRP

    PENG Shuhai(1); ZHANG Ying(2); LIU Hailin(1); ZHUANG Yadong(2); JIANG Chengyong(1); SUN Shihao(1); ZONG Yongli(1); XIE Jianping(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; (2) Technology and Research Center, China Tobacco Jiangsu Industrial Co., Ltd., Nanjing 210093, P.R. China
    A highly selective fluorescence method with Amplex Red HRP was developed to determine the hydrogen peroxide in mainstream cigarette smoke. This method’s LOD=13.5 nmol/L, recovery 98.3 %-101.7 % and RSD<3.17 % (n=5). The level of hydrogen peroxide...
  10. Tobacco Science & Technology, 2012, 4, p. 33-36, ISSN.1002-0861

    Extraction of chemical components in Hippophae rhamnoides L. and its application in cigarette

    WANG Hongwei; HAO Hui*; YU Guoqiang; SONG Jinyong; TIAN Haiying; ZHANG Dongyu
    Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, P.R. China
    In order to develop a new natural cigarette flavor, the fruits of Hippophae rhamnoides L. (Seabuckthorn) were extracted with Soxhlet extraction, heating reflux extraction and water extraction-alcohol precipitation in turn. Petroleum ether extract,...