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5 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2021, Online, AP 53

    Endophytic fungal community of tobacco leaves and their potential role in the formation of Cherry Red tobacco

    JIANG Yonglei; ZHAO Gaokun, LIU Jiahong, XIE Yan; LI Yong; ZOU Congming
    Yunnan Academy of Tobacco Agricultural Sciences, Kunming, China; Qujing Branch of Yunnan Tobacco Company, Qujing, China
    Cherry Red tobacco is the superior variant showing red dapples in cured leaves due to the demethylation of nicotine to nornicotine during maturation and curing. Fungi is known for its capacity of converting nicotine to nornicotine. However, to the...
  2. CORESTA Congress, Online, 2020, Agronomy/Phytopathology Groups, AP 26

    Rapid screening of nicotine converters from tobacco seedling population

    LI Yong; PANG Tao; CHEN Xuejun; SHI Junli; SUI Xueyi; GU Huaguo
    Yunnan Academy of Tobacco Agricultural Sciences of CNTC, Yunnan, P.R. China
    Conversion of nicotine to nornicotine is a challenge for tobacco leaf production. A gas chromatography-mass spectrometry-based method was developed for the rapid screening of seedling nicotine converters which would convert a large portion of...
  3. CORESTA Congress, Kunming, 2018, Agronomy/Phytopathology Groups, APPOST 10

    Determination of maleic hydrazide and its two glucosides in tobacco leaves using hydrophilic interaction liquid chromatography tandem mass spectrometry

    LI Yong; PANG Tao; SHI Junli; KONG Guanghui; LU Xiuping; JIN Yan
    Yunnan Academy of Tobacco Agricultural Sciences of CNTC, Kunming City, Yunnan Province, P.R. China
    A hydrophilic interaction liquid chromatography tandem mass spectrometry-based method for the simultaneous determination of maleic hydrazide (MH) and its two glucosides in tobacco leaves was developed. The method was based on the synthesis of...
  4. CORESTA Congress, Quebec, 2014, Smoke Science/Product Technology Groups, ST 64

    Structure identification of flavonoids in tobacco based on liquid chromatography mass spectrometry method

    PANG Tao; LI Yong; SHI Junli; LI Junying; DENG Jianhua; LU Xiuping
    Yunnan Academy of Tobacco Agricultural Sciences, Yuxi, Yunnan, P.R. China
    A structure identification method of flavonoids in tobacco was developed based on liquid chromatography mass spectrometry (LCMS). The two-step precursor ion scan method was used to identify flavone aglycones and glycosidic conjugates. The...
  5. Tobacco Science & Technology, 2010, 8, p. 10-17., ISSN.1002-0861

    Design of cigarette blend based on analysis of volatile components in tobacco leaf

    YANG LEI(1,2); YANG QING(2); LI YONG(2)
    1. Zhengzhou University of Light Industry, Zhengzhou 450002, P.R. China; 2. Honghe Branch, Technology Center, Hongyun Honghe Tobacco Group, Mile 652300, Yunnan, P.R. China
    In order to improve cigarette quality, the volatile components in tobacco leaves of different varieties, grades, growing years and areas and cut tobacco of 3 modules making up blend A of Honghe brand series were analyzed with GC/MS. Based on the...