Characterization of <i>Jatropha curcas</i> lignins

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  • Yamamura Masaomi
    Research Institute for Sustainable Humanosphere, Kyoto University Research Institute for Sustainable Humanosphere, Kyoto University
  • Akashi Kinya
    Graduate School of Biological Sciences, Nara Institute of Science and Technology Graduate School of Biological Sciences, Nara Institute of Science and Technology
  • Yokota Akiho
    Graduate School of Biological Sciences, Nara Institute of Science and Technology Graduate School of Biological Sciences, Nara Institute of Science and Technology
  • Hattori Takefumi
    Research Institute for Sustainable Humanosphere, Kyoto University Research Institute for Sustainable Humanosphere, Kyoto University
  • Suzuki Shiro
    Research Institute for Sustainable Humanosphere, Kyoto University Research Institute for Sustainable Humanosphere, Kyoto University
  • Shibata Daisuke
    Kazusa DNA Research Institute Kazusa DNA Research Institute
  • Umezawa Toshiaki
    Research Institute for Sustainable Humanosphere, Kyoto University Institute of Sustainability Science, Kyoto University Research Institute for Sustainable Humanosphere, Kyoto University Institute of Sustainability Science, Kyoto University

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  • Characterization of Jatropha curcas lignins

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Abstract

Lignins of Jatropha curcas organs were qualitatively and quantitatively characterized by thioglycolic acid, thioacidolysis, and nitrobenzene oxidation methods. The lignin content of the seed coat was 49.4%, and was the highest among various organs of the plant, while the stem had 15.9% lignin, within the range of usual lignin contents of angiosperm trees. Lignin aromatic components of all organs were composed of guaiacyl and syringyl units. Nitrobenzene oxidation indicated that the ratios of syringyl to guaiacyl lignins in the fruit coat and stem were higher than those in other organs. This study provides basic data for the total utilization of J. curcas wood.

Journal

  • Plant Biotechnology

    Plant Biotechnology 29 (2), 179-183, 2012

    Japanese Society for Plant Biotechnology

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