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  1. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 54

    Effect of fermentation temperature on TSNA contents and aroma quality of cigar filler tobacco and microbial diversity analysis

    LI Jingjing(1); SHI Hongzhi(1); QIN Yanqing(2); ZHOU Jun(3); ZHAO Yuanyuan(1); ZHONG Qiu(4); LIU Deshui(3); WANG Jun(4); ZHANG Ruina(4)
    (1) College of Tobacco Science of Henan Agricultural University / Tobacco Harm Reduction Research Center of Hau, Zhengzhou, China; (2) Sichuan Provincial Tobacco Company, Chengdu, China; (3) Beijing Cigarette Factory of Shanghai Tobacco (Group) Co., Beijing, China; (4) Deyang Municipal Tobacco Company, Deyang, China
    Fermentation is indispensable for quality cigar tobacco production and fermentation temperature plays a pivotal role. Meanwhile, the fermentation process is also an important stage in the formation of tobacco specific nitrosamine (TSNA), and...
  2. CORESTA Congress, Online, 2020, Agronomy/Phytopathology Groups, AP 25

    Analysis of TSNAs and their relationship with alkaloids in cigar wrapper and filler tobaccos from different regions and varieties

    SHI Hongzhi(1); ZHOU Di(1); SUN Yuqi(1); WANG Jun(2); ZHOU Jun(3); ZHAO Yuanyuan(1); ZENG Dailong(4); QIN Yanqing(2); BAI Ruoshi(3); YANG Xingyou(2); LI Jingjing(1)
    (1) College of Tobacco Science of Henan Agricultural University / Tobacco Cultivation Key Laboratory of China Tobacco / Tobacco Harm Reduction Research Center of HAU, Zhengzhou, P.R. China; (2) Sichuan Tobacco Company, Chengdu, P.R. China; (3) Beijing Cigarette Factory of Shanghai Tobacco (Group) Co., Beijing, P.R. China; (4) China Tobacco Sichuan Industrial Co., Ltd, Great Wall Cigar Factory, Shifang, P.R. China
    Cigar tobacco production is growing rapidly as cigar consumption has been increasing recently in China. In order to be clear about the current status of tobacco-specific nitrosamine (TSNA) contents of cigar wrappers and fillers from different regions...
  3. 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...
  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 28

    Effect of vacuum packaging on the formation of TSNAs in tobacco leaves during storage

    WANG Jun(1); SHI Hongzhi(1); Li Jingjing(1); ZHOU Jun(2); YANG Huijuan(1); BAI Ruoshi(2); ZHANG Chen(2)
    (1) Henan Agricultural University / China National Tobacco Cultivation & Physiology & Biochemistry Research Center / Tobacco Cultivation Key Laboratory of China Tobacco, Zhengzhou, P.R. China; (2) Beijing Cigarette Factory of Shanghai Tobacco Group Co., Ltd., Beijing, P.R. China
    Experiments were carried out to further clarify the effect of NOx on the formation of TSNAs during tobacco storage. Vacuum treatment was used to change the packing method of tobacco leaves, after which the changes of TSNAs after high temperature...
  6. 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...
  7. 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...
  8. 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...
  9. TSRC, Tob. Sci. Res. Conf., 2015, 69, abstr. 30

    Application of near infrared spectroscopy to detect mold contamination in tobacco

    YANG Lei(13); HOU Ying(1); LI Jingjing(1); LI Wei(1); WANG Jiajun(2); YANG Qianxu(2); WANG Baoxing(2); PAN Xuejun(3)
    (1) Yunnan Reascend Tobacco Technology (Group) Co. Ltd., Kunming, Yunnan, P.R. China; (2) China Tobacco Yunnan Industrial Co., Ltd., Kunming, Yunnan, P.R. China; (3) Kunming University of Science and Technology, Kunming, Yunnan, P.R. China
    Mold infection is a significant postharvest issue for processors of tobacco, which can cause value reduction of product and direct product loss. However, mold is mostly undetectable at early stages by traditional sorting techniques. In this paper,...