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4 results

  1. 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 %...
  2. Tobacco Science & Technology, 2012, 8, p. 40-43, 48, ISSN.1002-0861

    Pyrolysis of concrete of Tussilago farfara L. under simulated cigarette combustion condition

    YANG Yekun(1,2); GENG Yongqin(1); MIAO Enming(1); XU Jicang(1); LI Xuemei(*1); DING Zhongtao(2)
    (1) Yunnan Academy of Tobacco Science, Kunming 650106, P.R. China; (2) School of Chemical Science and Technology, Yunnan University, Kunming 650091, P.R. China
    Under simulated cigarette combustion condition, the pyrolytic behavior and the pyrolytic products of concrete of Tussilago farfara L. were studied by online pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS). The results showed that: 45 kinds...
  3. CORESTA Meeting, Smoke Science/Product Technology, Freiburg, 2003, ST 06

    A study of the extraction of tobacco with supercritical carbon dioxide

    YANG Yekun; LI Xuemei; ZHANG Xiaolong; ZHOU Jin; CHENG Jun
    Yunnan Academy of Tobacco Science, Kunming, Yunnan, China
    In general, the quality of the extracts by SCFE is superior to that of extracts by conventional processes (such as stream distillation and solvent extraction). The aim of this work was to extract tobacco using supercritical carbon dioxide fluid and...