Search Results

26 results

  1. CORESTA Meeting, Agronomy/Phytopathology, 2015, Izmir, Turkey, AP 35

    Measuring canopy nitrogen nutrition in tobacco plants using hyper spectrum parameters

    ZOU Yong; YE Xiaoqing; YU Zhihong; CHEN Yufeng; WANG Wei; CHEN Jianjun
    (1) Shenzhen Tobacco Ind. Co., Ltd. of CNTC, Shenzhen, Guangdong, P.R. China; (2) Shenzhen Boton Flavors & Fragrances Co., Ltd., Shenzhen, Guangdong, P.R. China; (3) Tobacco Laboratory, South China Agricultural University, Guangzhou, Guangdong, P.R. China
    The aim of this paper is to study the quantitative relationship between above-ground nitrogen accumulation (ANA) of flue-cured tobacco and canopy spectral parameters, and then build a monitoring model for ANA of flue-cured tobacco based on various ...
  2. Tobacco Science & Technology, 2012, 6, p. 45-47, ISSN.1002-0861

    Analysis of cortex moutan extract with GC/MS

    QU Jiani; JIANG Xingtao; XIAO Haihong; LI Qingting; QIANG Yaofeng
    Shenzhen Boton Flavors & Fragrances Co., Ltd., Shenzhen 518051, Guangdong, P.R. China
    In order to develop a natural tobacco flavor, the main volatile components in Cortex Moutan extract were identified by SPME-GC/MS, and the influence of SPME conditions on determination results was investigated. The results showed that: 1) the proper SPME ...
  3. Tobacco Science & Technology, 2010, 8, p. 34-40., ISSN.1002-0861

    Determination of twenty free amino acids in tobacco leaves by HPLC with pre-column derivatization

    CHENG YONG; CHEN LING; DENG XIAO-CHUN
    Shenzhen Boton Flavours and Fragrances Co., Ltd, Shenzhen 518051, Guangdong, P.R. China
    A method for determining 20 free amino acids in tobacco leaf was established by using 2,4-dinitrofluorobenzene (DNFB) as a derivative reagent, 0.015 mol/L disodium hydrogen phosphate and potassium dihydrogen phosphate as buffer solution and 50% aqueous ...
  4. CORESTA Congress, Paris, 2006, PT 20

    Feature selection from near infrared spectra using genetic algorithms for tobacco blend recognition

    FIGUERES G.; DE SOUZA S.; REYNES C.; SABATIER R.; VIDAL B.
    Altadis Research Centre, Fleury-les-Aubrais, France
    Near infrared reflectance spectroscopy has proved to be very useful for predicting concentrations of chemical compounds in tobacco, classification or pattern recognition of cigarette blends. The resulting measurement of a sample is a whole reflectance ...
  5. CORESTA Congress, Paris, 2006, SS 01

    How representative of the human smoking behaviour would be the new alternative smoking regimes? A first attempt of assessment

    MARCHAND V.; TESSIER C.; DUMERY B.
    Altadis Research Centre, Fleury-les-Aubrais, France
    The ISO or FTC smoking conditions (35 mL- 2 s puffs, 1 puff per minute) have been more and more criticized during the last decade, especially because they would not reflect the human smoking behaviour. Their main objective was not to predict the exact ...
  6. CORESTA Congress, Paris, 2006, SS 13

    A mixture experimental design with six variables and the effects on smoke components:1 - Presentation of this experimental design and of some initial results on physical characteristics of cigarettes and blends

    VIDAL B.; FIGUERES G.; BIESSE J.P.; BREGEON B.; LOUVET F.; MUZELLEC L.
    Altadis Research Centre, Fleury-les-Aubrais, France
    The objective of this paper is to examine the effects of six tobacco components on the chemical and physical characteristics of blends and cigarettes and particularly on the mainstream smoke yields. First of all, we will develop the philosophy of this ...
  7. CORESTA Congress, Paris, 2006, SS 14

    A mixture experimental design with 6 variables and the effects on smoke components:2 - Hoffmann analytes behaviour through a mixture experimental design

    FIGUERES G.; VIDAL B.; BIESSE J.P.; BREGEON B.; LOUVET F.; MUZELLEC L.
    Altadis Research Centre, Fleury-les-Aubrais, France
    Today in the tobacco industry, one of the main scientific challenges is to understand the formation of some smoke compounds ("Hoffmann analytes"). For several years, work has been conducted in order to know the influence of cigarette design ...