Search Results

13 results

  1. CORESTA Congress, Kunming, 2018, Smoke Science/Product Technology Groups, ST 31

    Study on nicotine release from snus products with fiber-optic sensing detection technology

    LI Peng(1); SHEN Yi(2); CHANG Cheng(3); ZENG Shitong(1); ZHANG Jianxun(1); ZONG Yongli(1); JIAN Xiaopeng(2); YANG Bin(2); SUN Shihao(1)
    (1) Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, P.R. China; (2) Shanghai New Tobacco Product Research Institute, Shanghai, P.R. China; (3) Zhengzhou GaTech Instruments Co., Ltd., Zhengzhou, P.R. China
    In order to strengthen the quality and safety control of snus products, the development and application of an optical fiber sensing drug dissolution analyzer were investigated to study nicotine release. An automatic testing method for the in situ release ...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, ST 26

    Dynamic determination of nicotine and 11 metabolites in brain and blood of rat by simultaneous microdialysis coupled with UHPLC-HRMS

    MAO Jian; SUN Shihao; LU Binbin; LI Peng; LIU Junhui; ZENG Shitong; ZHANG Qidong; CHAI Guobi; XI Hui; ZHANG Jianxun
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    Nicotine is the most specific cigarette smoke component and plays a key role in tobacco addiction. Nicotine dependence based on neuropharmacology effects is closely associated with nicotine metabolism. Although peripheral metabolism of nicotine has been ...
  3. TSRC, Tob. Sci. Res. Conf., 2016, 70, abstr. 59

    Determination of nicotine and its metabolites in rat brain using microdialysis coupled with UHPLC-Q-Exactive high resolution mass spectroscopy

    MAO Jian; LU Binbin; LI Peng; LIU Junhui; ZHANG Wenjuan; HONG Guangfeng; HUO Xiankuan; SUN Shihao
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, China
    In order to accurately determine nicotine (Nic) and its metabolites in rat brain, a method of microdialysis coupled with ultra high performance iquid chromatography-high resolution quadrupole-Orbitrap (UHPLC-Q-Exactive) mass spectrometry was established. ...
  4. CORESTA Congress, Sapporo, 2012, Smoke Science/Product Technology Groups, PT 14 (Poster)

    Evaluation of release behaviour of nicotine from tobacco chewing gum

    ZHANG Wen-juan; LI Peng; HE Bao-jiang; ZHANG Jian-xun; ZONG Yong-li
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, P.R. China
    A simulated chewing machine capable of evaluating the in vitro release behaviour of nicotine from tobacco chewing gum (TCG) was developed. It was composed of a temperature control module, simulated chewing module, artificial saliva adding module, release ...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2011, Graz, ST 13

    Determination of tobacco specific N-nitrosamines in smokeless tobacco products by liquid chromatography-tandem mass spectrometry

    YANG Chun-qiang; ZHANG Jie; LI Peng; WANG Yue-xia; ZONG Yong-li; XIE Jian-ping
    Zhengzhou Tobacco Research Institute, Zhegzhou, Henan, P.R. China.
    Tobacco specific N-nitrosamines (TSNAs) are the most abundant carcinogens identified in smokeless tobacco products. The accurate determination of TSNAs is significant to assess the health risk of smokeless tobacco products. A liquid chromatography ...
  6. TSRC, Tob. Sci. Res. Conf., 2011, 65, abstr. 73

    A novel model mouth system for evaluation of in vitro release of nicotine and tobacco-specific nitrosamines from moist snuff.

    JIE ZHANG; PENG LI; YONGLI ZONG; SHIHAO SUN; YUBING SONG; JIANPING XIE
    Zhengzhou Tobacco Research Institute, Zhegzhou, Henan, P.R. China.
    It is critical to characterize the release of nicotine and tobacco-specific nitrosamines (TSNA) from smokeless tobacco products for safety evaluation and product quality control. A novel model mouth system for evaluating the in vitro nicotine and TSNA ...
  7. Tobacco Science & Technology, 2011, 10, p. 44-48., ISSN.1002-0861

    Analysis of total nicotine, free nicotine and tobacco-specific n-nitrosamines in foreign (sic)[non Chinese] oral smokeless tobacco products

    ZHANG JIE(1,2); LI PENG(1); ZONG YONG-LI(1); SUN SHI-HAO(1); WANG SHENG(1); XIE JIAN-PING(1)
    1. Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, P.R. China; 2. Beijing Workstation, Technology Center, Shanghai Tobacco (Group) Co., Ltd., Beijing 101121, P.R. China
    The moisture content, nicotine, pH, free nicotine, and 4 tobacco-specific nitrosamines (TSNAs) in 65 samples of foreign oral smokeless tobacco products were analyzed with CORESTA recommended methods. The results showed that there was wide discrepancy ...
  8. CORESTA Meeting, Smoke Science/Product Technology, Aix-en-Provence, 2009, SSPT 24

    Novo435® lipase-catalyzed biosynthesis of glucose esters

    LI Peng; DING Li; ZENG Shitong; ZONG Yongli; SONG Yubing; YANG Chunqiang
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    In order to develop novel flavour enhancers for tobacco, a series of biosynthesis experimentations were carried out by using 6 common organic acids (iso-pentanoic acid, n-hexanoic acid, n-octanoic acid, lauric acid, propanedioic acid and malic acid) and ...
  9. CORESTA Meeting, Smoke Science/Product Technology, Aix-en-Provence, 2009, SSPT 35

    Characterization of water distribution in cut tobacco using a low-field 1H NMR technique

    MA Ji; HA Baojiang; LI Peng; GUO Xueke; SUN Shihao; YANG Chunqiang; LI Yanqiang; ZONG Yongli; QU Zhan
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    Cut tobacco was studied by low-field 1H NMR at various water contents and temperatures. The spin-spin relaxation times (T2) were measured with Carr-Purcell-Meiboom-Gill (CPMG) sequences. Three populations were observed in cut tobacco, namely, population ...
  10. Tobacco Science & Technology, 2009, 3, p. 33-9, ISSN.1002-0861

    Synthesis of polyol esters of lower fatty acids and their application in cigarette flavoring

    ZENG SHI-TONG; LI PENG; HU JUN
    Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou, Henan, China
    In order to develop new tobacco flavors, eight polyol esters were synthesized from polyols and lower fatty acids with TiSiW12O40/TiO2 as a catalyst. The synthesizers were analyzed by MS, GC/MS and Py/GC/MS, and their performance as cigarette flavorings ...