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102 results

  1. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 05

    Determination of 10 kinds of polycyclic aromatic hydrocarbon in the aerosol of heat-not-burn products by SPME-GC-MS

    SHEN Junyu; LIU Xin
    Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, P.R. China
    Polycyclic aromatic hydrocarbons are low in mainstream tobacco smoke, but they are among the most hazardous substances and have been shown to be carcinogenic in a number of studies. One polycyclic aromatic hydrocarbon is benzo[a]pyrene, which has been ...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 07

    Quantitative determination and puff-by-puff analysis on the release pattern of nicotine and menthol in heat-not-burn tobacco material and emissions

    LIU Shengyi; LI Jingjing; ZHU Libing; LIU Weijuan
    (1) Ruvian Technology Ltd., Kunming, P.R. China; (2) Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, P.R. China
    There is a lack of description of nicotine strength in current available heat-not-burn (HnB) tobacco products. Three HnB products were studied regarding the occurrence of nicotine in their tobacco and menthol flavoured cigarettes, and menthol in their ...
  3. 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 ...
  4. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, STPOST 10

    A study on production and delivery of volatile aroma substances from heat-not-burn products’ tobacco material to emissions

    LI Jingjing; LIU Shengyi; ZHU Libing; LIU Weijuan
    (1) Ruvian Technology Ltd., Kunming, P.R. China; (2) Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, P.R. China
    Volatile substances in emissions from heat-not-burn (HnB) products contribute to sensory quality. These substances including aldehydes, ketones, alcohols, and esters. To better understand the production and delivery of volatile substances, volatile ...
  5. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, AP 27

    The research and application of systematic technologies for reducing tobacco specific nitrosamines in tobacco and cigarette smoke

    BAI Ruoshi(1); ZHOU Jun(1); YANG Chunlei(2); SHI Hongzhi(3); LIU Weijuan(4); XU Tongguang(1); MA Yanjun(1); LIU Xingyu(1); YANG Jinpeng(2); WANG Jun(3); ZHANG Jie(1); YANG Zhendong(1); ZHENG Xiaoman(1); ZHANG Chen(1)
    (1) Technical Center of Beijing Cigarette Factory, Shanghai Tobacco Group Co., Ltd, Beijing, P.R. China; (2) Hubei Tobacco Research Institute, Wuhan, P.R. China; (3) Henan Agriculture University, Zhengzhou, P.R. China; (4) Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, P.R. China
    Reduction of tobacco specific nitrosamines (TSNAs) in tobacco and cigarette smoke is a research hotspot. The systematic technologies for reducing TSNAs in both agricultural and industrial areas were developed and applied. The TSNA levels for the upper and ...
  6. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 14

    Study on the detection and automatic diagnosis of tobacco diseases based on machine vision and machine learning

    ZHANG Jianqiang; LIU Weijuan; HOU Ying; LI Changyu
    Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, Yunnan, P.R. China
    Tobacco disease diagnosis in China at present mostly remains in the artificial stage, with such problems as poor objectivity and low efficiency. A novel tobacco disease detection and automatic diagnosis system based on machine vision and machine learning ...
  7. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 09

    Puff-by-puff analysis of nicotine, menthol and other volatile components in menthol flavoured heat-not-burn tobacco product

    LI Jingjing; LIU Weijuan; GUO Tingting; HOU Ying; LIU Shengyi
    Ruvian Technology Ltd., Kunming, P.R. China; Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, P.R. China; Yunnan Comtestor Co., Ltd, Kunming, P.R. China
    Heat-not-burn (HnB) tobacco products have rapidly become an accepted alternative to cigarettes worldwide in recent years. Since the main additives in tobacco materials of HnB products, such as nicotine, menthol and other volatile components, are released ...
  8. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 10

    Quantitative determination of selected carbonyls in tobacco, tobacco materials, e-liquids and emissions of conventional cigarettes and novel tobacco products (NTPs)

    LIU Shengyi; LIU Weijuan; HOU Ying; LI Jingjing
    Ruvian Technology Ltd., Kunming, P.R. China; Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, P.R. China; Yunnan Comtestor Co., Ltd, Kunming, P.R. China
    Background/aims: Carbonyls play an important role in the toxicological assessment of tobacco and nicotine containing products. Four commercially available tobacco and nicotine containing products (Conventional Cigarette/CC, E cigarette/EC and two Heat-not ...
  9. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 21

    Rapid determination of important indexes of e-cigarette liquid based on near-infrared spectroscopy and PSO-SVR algorithm

    ZHANG Jianqiang(1,2); LI Jingjing(1); LIU Weijuan(1,2)
    (1) Ruvian Technology Ltd., Kunming, P.R. China; (2) Yunnan Reascend Tobacco Technology (Group) Co., Ltd, Kunming, Yunnan, P.R. China
    As e cigarettes deliver nicotine without burning tobacco, they are a safer and less toxic alternative to conventional cigarettes and have quickly become a popular substitute for traditional tobacco cigarettes. Relative density and refractive index are two ...
  10. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 39

    Impact of cigarette paper and blend on super slim, slim and king-size cigarette designs

    WANNA J.(1); CHEN Cai(2); XIAO Cuicui(3); LIANG Chenze(3); RUI Li(4); ZHANG Wenjun(4)
    (1) SWM Intl., Alpharetta, GA, U.S.A.; (2) SWM Shanghai Representative Office, Shanghai, P.R. China; (3) China Tobacco Mauduit, Jiangmen, Guangdong, P.R. China; (4) China Tobacco Schweitzer, Yuxi City, Yunnan, P.R. China
    Superslim (SS) cigarettes account for 5 % of total cigarette sales on the Chinese market, with a year to year increase of 2.1 %. Similar to this fast-growing trend, many more brands of slim (SL) cigarettes have been offered on the market since 2017. To ...