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  1. Tobacco Science & Technology, 2012, 11, p. 74-78, ISSN.1002-0861

    Influences of arbuscular mycorrhizal fungi on phosphorus content in tobacco planting soil and nutrition absorption of flue-cured tobacco plants

    YAO Juan(1); WANG Maosheng(2); WANG Feng(*1,3); XU Dongqing(2)
    (1) Agricultural College of Guizhou University, Guiyang 550025, P.R. China; (2) Guizhou Tobacco Science Institute, Guiyang 550081, P.R. China; (3) Qianxinan Prefecture Tobacco Company of Guizhou Province, Xingyi 562400, Guizhou, P.R. China
    In order to study the mycorrhizal effects of mycorrhizal seedling after transplanting, three nitrogen (N) levels, 45, 67.5 and 90 kg/ha, were applied in field experiments and the effects of mycorrhizal seedlings on phosphorus (P) content in soil and...
  2. Tobacco Science & Technology, 2012, 12, p. 14-17, ISSN.1002-0861

    Study on control mode for formulation uniformity during tobacco threshing and redrying

    YANG Kai(1); CHEN Qing(*2); XU Qimin(2); LUO Jun(2); WANG Weimiao(1); ZHAO Quan(2); XU wei(2); DING Ziyuan(2); CAO Leyi(2)
    (1) Technology Center, Shanghai Tobacco Group Co., Ltd., Shanghai 200082, P.R. China; (2) Hua Huan International Tobacco Co., Ltd., Chuzhou 233121, Anhui, P.R. China
    To control the blending uniformity more reasonably in tobacco threshing and redrying, minimize fluctuation of nicotine content in processed strips and ensure quality consistence of cigarette, the nicotine content in tobacco leaf was taken as a...
  3. Tobacco Science & Technology, 2012, 12, p. 33-38, ISSN.1002-0861

    Effects of yellowing and color fixing durations during curing on chemical components in flue-cured tobacco leaves

    JIANG Houlong(1,2); LIU Guoshun(*1); ZHOU Hui(1); HU Hongchao(3)
    (1) College of Tobacco; National Tobacco Cultivation & Physiology & Biochemistry Research Center, Henan Agricultural University, Zhengzhou 450002, P.R. China; (2) Chongqing Tobacco Science Research Institute, Chongqing 400715, P.R. China; (3) Pingdingshan Branch, Henan Province Tobacco Company, Pingdingshan 467000, Henan, P.R. China
    The effects of durations of yellowing and color fixing during curing on chemical components in flue-cured tobacco leaves in a stepping flue-curing barn were investigated. The results showed that: 1) When yellowing duration was prolonged for 12 hours,...
  4. Tobacco Science & Technology, 2012, 12, p. 39-43, ISSN.1002-0861

    Effects of spacing, nitrogen application rate and tip leaf length after topping on agronomic characters and chemical composition of Yunyan 97

    ZHA Hongbo; SHI Lei; MAO Zhiyong; HUANG Wei; NI Xia; ZHAO Fang
    Zhaotong Branch, Yunnan Province Tobacco Company, Zhaotong 657000, Yunnan, P.R. China
    In order to find out the suitable cultivation practices for Yunyan 97 in Zhaotong, Yunnan, the effects of planting spacing, nitrogen application rate and tip leaf length after topping on the agronomic characters of and chemical components in upper...
  5. Tobacco Science & Technology, 2012, 12, p. 44-48, ISSN.1002-0861

    Simultaneous determination of four aromatic amines in mainstream cigarette smoke with liquid chromatography tandem mass spectrometry

    YU Jingjing; WANG Sheng; XIE Fuwei*; CHEN Yusong; ZHAO Ge; ZHANG Xiaobing
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    For simultaneous determination of four aromatic amines, including 1-naphthylamine, 2-naphthylamine, 3-aminobiphenyl and 4-aminobiphenyl, in mainstream cigarette smoke, a liquid chromatography tandem mass spectrometric (LC-MS/MS) method was developed....
  6. Tobacco Science & Technology, 2012, 12, p. 49-51, ISSN.1002-0861

    Determination of moisture content in tobacco with gas chromatography

    WU Jinming(1); PENG Bin(*2); LIU Kejian(2); ZHAO Xiaodong(2); LI Ping(2); ZHANG Xiaobing(2)
    (1) China Tobacco Guangdong Industrial Co., Ltd., Guangzhou 510145, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    In order to accurately determine the moisture content in tobacco, a method with gas chromatography was developed. Four factors, including extraction means, extraction solvent, extraction time and solvent volume, were optimized. The results showed...
  7. Tobacco Science & Technology, 2012, 12, p. 5-8, 21, ISSN.1002-0861

    Effects of blending proportions of three kinds of cut stems on cigarette quality

    JIN Zhe; PIAO Yongge; HUANG Shuyong; FU Qi; LI Yu-e; YUAN Xinkai
    Technology Center, Jilin Tobacco Industrial Co., Ltd., Yanji 133001, Jilin, P.R. China
    In order to investigate the effects of the mixture of processed stems of different shapes, granular stem treated with microwave, fibriform stem treated with cylinder drying, laminal stem treated with expanding tower, on cigarette quality, the...
  8. Tobacco Science & Technology, 2012, 12, p. 52-55, ISSN.1002-0861

    Synthesis of 6-O-carboxymethyl-D-galactopyranose and its application in cigarette

    CHEN Zhifei(1); SUN Zhitao(1); LU Changtong(1); WANG Hongwei(*1); QU Zhan(2); MA Ji(2); HE Baojiang(2)
    (1) Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou 450000, P.R. China; (2) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    6-O-Carboxymethyl-D-galactopyranose (V) was synthesized from D-galactose (I) through hydroxyl protection, nucleophilic substitution, saponification and deprotection reactions. The structures of the products of each synthesized step were characterized...
  9. Tobacco Science & Technology, 2012, 12, p. 56-59, ISSN.1002-0861

    Effects of two derivative conditions on determination of polybasic acids and higher fatty acids in tobacco

    WANG Bing; XIA Qiaoling; GUO Jizhao; CAI Junlan; WANG Sheng; XIE Fuwei*
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China
    The polybasic acids and higher fatty acids in tobacco were methyl esterified under two derivative conditions: heating-refluxing and placing at room temperature. The reaction mixtures were analyzed with gas chromatography (GC), the results were...
  10. Tobacco Science & Technology, 2012, 12, p. 60-67, ISSN.1002-0861

    Isolation, identification and characteristics of nicotine-degrading bacterium from flue-cured tobacco leaves during aging

    LI Tianli(1,2); ZHOU Yawei(1); TANG Chaoqi(2); QU Yongsheng(2); LI Pengfu(1,2)
    (1) College of Life Science, Nanjing University, Nanjing 210093, P.R. China; (2) Shanghai Tobacco Group Co., Ltd., Shanghai 200082, P.R. China
    A bacterial community named Q6 with the ability of nicotine degrading was isolated from flue-cured tobacco leaves during aging. The results of PCR-DGGE analysis of 16S rDNA segment suggested that the bacterial community Q6 consisted of eight species....