Help

Search Results

13 results

  1. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, ST 52

    Investigation of nicotine release behaviour of tobacco chewing gum in oral cavity by a novel simulated oral dissolution device

    YANG Ji; YANG Liu; ZHAO Wei; TANG Jianguo; ZHOU Kun; ZHU Baokun; DUAN Yuanxing; ZHAO Yang; TIAN Yongfeng; CHEN Yongkuan; MIAO Mingming
    Yunnan Industrial Co., Ltd of CNTC, Research & Development Center, Kunming, P.R. China
    For studying the nicotine release behaviours of smokeless tobacco products in the oral cavity, a controllable and reliable method was established and a novel simulated oral dissolution device was designed. Taking the in vivo nicotine dissolution...
  2. CORESTA Meeting, Smoke Science/Product Technology, 2017, Kitzbühel, STPOST 11

    Investigation of gene expression profile of cells after e-cigarette and cigarette smoke exposure

    TIAN Yongfeng; DUAN Yuanxing; ZHAO Wei; YANG Ji; ZHAO Yang; ZHU Donglai; ZHANG Xia; GONG Xiaowei; HONG Liu; MIAO Mingming; YANG Liu; CHEN Yongkuan
    China Tobacco Yunnan Industrial Co., Ltd of CNTC, Technical and Research Center, Yunnan, P.R. China
    To evaluate the cellular damage caused by e-cigarettes (e-cigs) and combustible cigarettes with respect to inflammatory expression, comparative analysis between two types of e-cigs and three types of combustible cigarettes were conducted. The aerosol...
  3. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, STPOST 11

    Quantitative discrimination of the flavour type of flue-cured tobacco and correlation between flavour type and planting area

    LI Chao(1); MIAO Mingming(1); QIN Yunhua(1); LI Exian(2); WU Yiqin(1); XU Yong(1); YANG Guangyu(1); ZHANG Chengming(1)
    (1) Cigarette Product Quality Inspection Institute, Technology Center, China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China; (2) Institute of Biotechnology and Genetic Resources, Yunnan Academy of Agricultural Sciences, Kunming, P.R. China
    To study the relationship between chemical composition and flavour type of flue-cured tobacco, 500 tobacco samples were collected from 29 areas in 14 Chinese provinces in 2012. A classical sampling method was applied. Following relevant methods...
  4. CORESTA Congress, Berlin, 2016, Smoke Science/Product Technology Groups, STPOST 28

    Determination of benzo[a]pyrene in smokers’ urine by online gel permeation chromatography–solid phase extraction–gas chromatography/mass spectrometry

    SI Xiaoxi; ZHU Ruizhi; LIU Zhihua; ZHANG Fengmei; LIU Chunbo; SHEN Qinpeng; HE Pei; MIAO Mingming; YANG Guangyu
    Key Laboratory of Tobacco Chemistry of Yunnan, R&D Center of China Tobacco Yunnan Industrial Co., Ltd., Kunming, P.R. China
    A new method for determining the benzo[a]pyrene (B[a]P) in samples of smokers’ urine was developed with an online gel permeation chromatography-solid phase extraction-gas chromatography/mass spectrometry (GPC-SPE-GC/MS) hyphenated system. Urine...
  5. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, ST 33

    Study on reduction of harmful components in mainstream cigarette smoke with electric-heating atomisation technology

    ZHANG Xia; ZHU Donglai; LI Shoubo; CHEN Yongkuan; GONG Xiaowei; HAN Jingmei; CUI Zhuwen; JIN Yongcan; MIAO Mingming; HAN Yi
    Non-traditional Tobacco Products Institute, Technology Center of China Tobacco Yunnan Industrial Co., Ltd. of CNTC, Kunming, P.R. China
    A novel cigarette smoking device was designed by adopting electric-heating atomisation technology for the purpose of reducing the harmful components in mainstream cigarette smoke. The smoking device was composed of a cigarette holder and an...
  6. CORESTA Meeting, Smoke Science/Product Technology, 2015, Jeju, STPOST 02

    Influence of microwave treatment on the combustibility of tobacco and its kinetic analysis

    LIU Chunbo; SHEN Qinpeng; HE Pei; ZHANG Tao; ZHU Ruizhi; LIU Zhihua; YANG Guangyu; ZHANG Hongyu; MIAO Mingming
    Key Laboratory of Tobacco Chemistry of Yunnan Province, Research & Development Center, China Tobacco Yunnan Industrial Co., Ltd. of CNTC, Kunming 650231, P.R. China
    Microwave treatment can promote the expansion of tissue structure of tobacco leaves and improve their combustibility. To study the structure and combustibility of tobacco leaves treated with microwave for different durations, scanning electron...
  7. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 44

    Investigation of pyrolysis behaviour of lutein in air by thermo gravimetry-single drop micro extraction-gas chromatography-mass spectrometry

    YANG Ji; YANG Liu; WU Yiqin; MIAO Mingming; ZHE Wei; CHEN Yongkuan
    China Tobacco Yunnan Industrial Co., Ltd of CNTC, R&D Center, Kunming, P.R. China
    To investigate the pyrolysis behaviour of lutein in air, an automatic single drop micro extraction (SDME) device for trapping the released fractions was designed and coupled with thermo gravimetry-gas chromatography-mass spectrometry. According to...
  8. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, STPOST 18

    Development and validation of a high content screening in vitro micronucleus assay for the assessment of total particulate matter in cigarette smoke

    GAO Qian(1); ZENG Wanli(1); ZHU Zhouhai(1); GUAN Ying(1); MI Qili(1); MIAO Mingming(1); LI Xuemei(1); YAO Jianhua(1); LI Ming(2)
    (1) Yunnan Academy of Tobacco Science of CNTC, Kunming, P.R. China; (2) China Tobacco Society, Beijing, P.R. China
    High Content Screening (HCS) is imaging based multi-parametric approaches to cell analysis at the single-cell level, which was originally developed as a complementary technology to traditional biochemical high-throughput screening in drug discovery....
  9. Tobacco Science & Technology, 2012, 1, p. 29-33., ISSN.1002-0861

    Effects of moisture content in cut tobacco on deliveries of 7 harmful compounds in mainstream cigarette smoke

    LIU Zhihua(1); YANG Song(2); WANG Kunmiao(1); HE Pei(1), LI Fan(2); CHEN Yongkuan(1); MIAO Mingming(1)
    (1) Key Lab of Tobacco Chemistry of Yunnan, Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China; (2) School of Pharmaceutical Science, Kunming Medical University, Kunming 650031, P.R. China
    To investigate the influence of moisture content in cut tobacco on the deliveries of 7 harmful compounds, including CO, 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), benzo[a]pyrene (B[a]P), HCN, NH3, phenol and crotonaldehyde, in mainstream...
  10. Tobacco Science & Technology, 2012, 4, p. 51-55, ISSN.1002-0861

    Comparison on cytotoxicity of cigarette smoke components trapped at each stage in cambridge filter-solvent-solvent systems

    YAO Jianhua; MI Qili; GENG Yongqin; YANG Yekun; HUANG Haitao; LI Xuemei; MIAO Mingming; TANG Ping
    Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China
    In order to investigate the effects of cigarette smoke trapping on in vitro cytotoxicity test, 3 kinds of trapping systems, including Cambridge filter-pH7.0 PBS-acetone, Cambridge filter-pH7.2 PBS-ethyl acetate and Cambridge filter-pH7.4 PBS-70 %...