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116 results

  1. CORESTA Congress, Online, 2020, Smoke Science/Product Technology Groups, ST 03

    Method development for the analysis of mono-carbonyl compounds in e-vapor products by LC-MS

    ZHU J.; HEREDIA A.; TWEEDY J.; TAYYARAH R.
    ITG Brands and Fontem USA, Greensboro, NC, U.S.A.
    At the 73rd Tobacco Science Research Conference (TSRC), we presented a novel method for quantitation by LC-MS of mono-carbonyl compounds in e-vapor product aerosol samples. The method is simple and robust with good recoveries. We have since extended...
  2. 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...
  3. CORESTA Congress, Online, 2020, Smoke Science/Product Technology Groups, STPOST 13

    Analysis of menthol optical isomers in tobacco products

    SI Xiaoxi; ZHU Ruizhi; TANG Jianguo; MIAO Mingming; LIU Zhihua
    Yunnan Key Laboratory of Tobacco Chemistry, R&D Center of China Tobacco Yunnan Industrial Co., Ltd. of CNTC, No. 367, Hongjin Road, Kunming 650231, Yunnan, P.R. China
    Menthol can exist in four enantiomeric pairs, each of which has D-type and L-type separately. Different menthol isomers possess different sensory properties. The establishment of configuration analysis technology for the menthol isomer is of great...
  4. 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...
  5. 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...
  6. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 42

    Study on aerosol deposition in the respiratory tract of consumers using cigarette, electronic cigarette or heat-not-burn product

    CUI Huapeng(1); LI Yawen(1); FAN Meijuan(1); CHEN Li(1); SI Xiaoxi(2); HAN Jingmei(2); CAI Junlan(1); LI Xiang(1); LIU Shaofeng(1); XIE Fuwei(1); XIE Jianping(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China; (2) R&D Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China
    The deposition of aerosols inhaled into the human respiratory tract is key to evaluate exposure and risk during product use. A method based on a differential mobility spectrometer (DMS) was established for determining the physical properties of...
  7. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, ST 45

    Meta-analysis of two biomarkers of exposure of tobacco products

    AYALA-FIERRO F.(1); ELAMIN A.(2); FROST-PINEDA K.(3); JIN T.(3); PRASAD G.L.(3); SARKAR M.(4); SCHMIDT E.(3); VERRON T.(5)
    (1) ITG Brands LLC, Greensboro, NC, U.S.A.; (2) PMI R&D, Philip Morris Products S.A., Neuchâtel, Switzerland; (3) RAI Services Company, Winston-Salem, NC, U.S.A.; (4) Altria Client Services LLC, Richmond, VA, U.S.A.; (5) SEITA - Imperial Brands, Paris, France
    In the context of tobacco products, broadly two types of biomarkers exist, biomarkers of exposure (BoE) and biomarkers of potential harm (BoPH). BoE measure exposure to tobacco constituents, e.g. carbon monoxide (CO) and nicotine equivalents (NEQs)....
  8. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, STPOST 33

    Quantitative risk assessment (QRA) indicates reduced risk potential for carcinogenic and non-carcinogenic effects of the aerosol of the next generation products (NGPs) compared to reference cigarettes

    AYALA-FIERRO F.(1); CZEKALA L.(2); SIMMS L.(2); RUDD K.(2); CAVA G.(2); STEVENSON M.(2)
    (1) ITG Brands LLC, Greensboro, NC, U.S.A.; (2) Imperial Brands PLC, Bristol, U.K.
    In order to understand the potential relative health risks of NGPs compared to cigarettes, we compared the relative risks of aerosols from tobacco-containing and tobacco-free NGPs to the smoke generated from a reference cigarette. Quantitative Risk...
  9. CORESTA Meeting, Smoke Science/Product Technology, 2019, Hamburg, STPOST 58

    A consortium approach for consumer-reported outcome measures to assess tobacco- and nicotine-containing products

    ACQUADRO C.(1) on behalf of the CORESTA CROM Task Force: AYALA-FIERRO F.(2); BLACK R.(3); CAHOURS X.(4); CHREA C.(5); CURTIN G.(6); GILES L.(7); McCAFFREY S.(3); PARK C.H.(8); PRASAD K.(9); SHERWOOD N.(10); SHIFFMAN S.(11); SMITH J.(6); SPIES E.(5)
    (1) Mapi Research Trust, Lyon, France; (2) ITG Brands, Greensboro, NC, U.S.A.; (3) Altria Client Services, Richmond, VA, U.S.A.; (4) SEITA - Imperial Brands, Paris, France; (5) Philip Morris Products S.A., Neûchatel, Switzerland; (6) RAIS, Winston-Salem, NC, U.S.A.; (7) JT Int'l SA, Genève, Switzerland; (8) KT&G Research Institute, Daejeon, Republic of Korea; (9) British American Tobacco, Southampton, U.K.; (10) Neil Sherwood Consulting, Commugny, Switzerland; (11) Pinney Associates, Pittsburgh, PA, U.S.A.
    In the tobacco space, consumer-reported outcome measures (CROM) are essential for understanding motivations, subjective effects, and behavior. Such measures have become particularly important with the advent of candidate modified risk tobacco...