Search Results

19 results

  1. CORESTA Congress, Online, 2022, Smoke Science/Product Technology Groups, ST 19

    Interaction mechanisms between S/R-nicotine and human serum albumin

    YANG Ji; LIU Chunbo; ZHU Ruizhi; YIN Zhijiang; LIU Ze; TIAN Ran; TANG Shiyun; XIA Jianjun; SI Xiaoxi;JIANG Wei; LI Zhengjie; LIU Zhihua
    Technology Center of China Tobacco Yunnan Industrial Co., Ltd., Kunming, China
    Nicotine is an asymmetric molecule with two enantiomers, namely S-nicotine and R-nicotine.  Studies have shown that different configurations of nicotine have different physiological activities in the body.  Therefore, taking human serum...
  2. CORESTA Congress, Online, 2022, Smoke Science/Product Technology Groups, ST 70

    Evaluation on accuracy improvement of GC-MS determination of seven minor alkaloids in mainstream cigarette smoke by novel analyte protectants

    WANG Xiaoyu(1); GUO Qiong(1); Li Xianyi(2); QIN Yaqiong(1); Mao Deshou(2); PAN Lining(1); XIE Fuwei(1); LIU Shaofeng(1); Liao Tougen(2); LIU Huimin(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China; (2) R&D Center, China Tobacco Yunnan Industrial Co., Kunming, China
    Tobacco minor alkaloids are important precursor substances of TSNAs. Therefore, their accurate quantifications are of great significance. In order to realise determinations of seven minor alkaloids in mainstream cigarette smoke with high accuracy and...
  3. CORESTA Congress, Online, 2022, Smoke Science/Product Technology Groups, ST 80

    Analysis of absorption hysteresis of different cigarette blends based on adsorption thermodynamics method

    QIU Changgui(1,2); LIU Ze(3); WEI Qing(1); HE Banghua(3); YANG Qianxu(3); LIU Jing(1,2); LI Siyuan(4); WANG Zeyu(4); ZUO Wen(4); YANG Lan(4); GUO Miaomiao(3)
    (1) Yunnan Reascend Tobacco Technology (Group) Co., Ltd., Kunming, China; (2) Yunnan Comtestor Co., Ltd., Kunming, China; (3) China Tobacco Yunnan Industrial Co., Ltd., Kunming, China; (4) Hongyun Honghe Tobacco (Group) Co., Ltd., Kunming, China
    In order to study the isothermal adsorption characteristics for cut tobacco, cut stem and cut reconstituted tobacco, the adsorption hysteresis was quantified using the definite integral expression of GAB model, and the isosteric adsorption heat of...
  4. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 10

    Modelling and simulation of electromagnetic heating smoking set with multi physical field

    BAO Jun(1); HAN Jingmei(2); LI Zhiqiang(2); ZHANG Jianming(3); LEI Ping(2); SHANG Shanzhai(2); YE Bo(1); MA Jun(1); LI Bin(3)
    (1) Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, China; (2) Technical Centre of Yunnan China Tobacco Industry Co., Ltd, Kunming, China; (3) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
    In heat-not-burn cigarettes, electromagnetic heating has the advantages of uniform heating and fast heating speed compared with traditional resistance plate heating. However, there are still some problems in domestic electromagnetic heating smoking...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 11

    Simulation research on temperature field distribution of electric heating non-combustion cigarette heater

    DENG Weiquan(1); LI Zhiqiang(2); HAN Jingmei(2); WANG Le(3); LEI Ping(2); SHANG Shanzhai(2); MA Jun(1); ZHANG Ke(3)
    (1) Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming, China; (2) Technical Centre of Yunnan China Tobacco Industry Co., Ltd, Kunming, China; (3) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
    Compared with traditional cigarettes, heat-not-burn cigarettes only heat the tobacco materials or tobacco extracts instead of burning. The heating temperature of heat-not-burn cigarettes is generally about 300 °C, and the harmful substances...
  6. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 34

    Study of the interaction between aroma components and sweet taste characteristics of cigarettes by σ-τ model method

    LI Chao(1); LIU Jinyun(2); FAN Duoqing(1); CHEN Fangrui(1); HU Yan(1); WANG Meng(1); YE Ling(1); LIAO Tougen(1); LIU Xiuming(1); ZHANG Yipeng(1)
    (1) Cigarette Product Quality Test Center, Technology Center of China Tobacco Yunnan Industrial Co., Ltd, Kunming, China; (2) Yunnan Industrial Tobacco HI-TECH Material Co., Ltd, Kunming, China
    To investigate the correlations between the aroma substances in mainstream smoke and the sweet taste of cigarettes via analyzing the interaction mechanism between 12 fragrance materials and glucose, the sweet taste values of different concentration...
  7. CORESTA Meeting, Smoke Science/Product Technology, 2021, Online, ST 52

    A prediction model for lip sticking force of cigarette tipping paper based on friction coefficient and grammage

    YANG Ji; ZHU Ruizhi; ZHANG Tao; GUO Lijuan; LIU Chunbo; XIANG Nengjun; LIU Zhihua; MIAO Mingming
    China Tobacco Yunnan Industrial Co., Ltd of CNTC, R&D Center, Kunming, China
    To quickly and accurately determine the adhesive force of cigarette tipping paper to lips, a prediction method was proposed based on friction coefficient and grammage. A peel strength tester was used to measure the adhesive force between tipping...
  8. CORESTA Congress, Online, 2020, Smoke Science/Product Technology Groups, ST 09

    Influences of tobacco powder particle size on the reconstituted tobacco slurry process for electrically heated tobacco products

    TIAN Yongfeng; DONG Gaofeng; MIAO Mingming; TANG Jianguo; ZHU Donglai; SHANG Shanzhai; ZHANG Xia; HE Pei; TANG Shiyun; YANG Chen; LIU Zhihua
    Technical Center, China Tobacco Yunnan Industrial Co., Ltd., of CNTC, Yunnan Key Laboratory of Tobacco Chemistry, Kunming, P.R. China
    In order to investigate the influence of tobacco powder of different particle sizes on the quality of tobacco materials in electrically heated tobacco products (eHTPs), slurry process reconstituted tobacco was prepared by using tobacco powder of...
  9. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 15

    Crystal structure of nicotine gentisate and its permeability in pig buccal mucosa

    YANG Ji; MIAO Mingming; CHEN Yongkuan; LIU Zhihua; ZHAO Yang; WU Yiqin; LIU Chunbo; YANG Liu; ZHAO Hui; SHEN Qinpeng; DUAN Yuanxing; GONG Xiaowei
    R&D Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China
    Nicotine compound salt has been widely concerned recently with the continuous expansion of the e-cigarette market. Synthetic nicotine organic acid salt or nicotine complex, instead of monomeric nicotine, is used in the formulation of the next...
  10. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 27

    Determination of petroleum ether extracts in flue-cured tobacco leaves by NIR combined with random frog wavelength selection method

    QIU Changgui(1,2); LIU Ze(3); CHEN Shi(4); LIU Jing(1,2); WANG Jiajun(3); ZHANG Wen(1,2); YANG Panpan(1,2)
    (1) Yunnan Reascend Tobacco Technology (Group) Co., Ltd., Kunming, P.R. China; (2) Yunnan Comtestor Company, Kunming, P.R. China; (3) Technology Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China; (4) Bijie Cigarette Factory, China Tobacco Guizhou Industrial Co., Ltd., Bijie, P.R. China
    In order to improve the prediction accuracy and model stability for quantitative calibration in near infrared spectroscopy, the random frog wavelength selection method combined with partial least squares (PLS) was employed to establish the prediction...