<Original>Lignin-carbohydrate Complexes from Albizia falcata (L.) Back.

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概要

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• この論文は国立情報学研究所の学術雑誌公開支援事業により電子化されました。Lignin-carbohydrate complexes (LCCs) have been extracted from tropical hard wood of Albizia fakata (L.) Back, by a modified Bjorkman method. After extraction of milled wood lignin (MWL) from the hard wood, LCCs were isolated by successive extraction of the residual wood meal with water (LCC-WE) and 4% NaOH (LCC-AE). NMR and methylation analysis of the LCCs indicated that carbohydrate moiety of LCC-AE was composed of 4-O-methyl-glucuronoxylan while polyose component of LCC-WE consisted of glucomannan and xylan. Analysis of neutral fraction from LCC-WE revealed that this LCC contained β-1,4-linked xylan chain bearing no glucuronic acid residue. In addition, it has been clarified by DDQ-oxidation that the glucuronoxylan was directly bound to the lignin through C-2 and C-3 positions of xylose unit by ether linkage.

• 1993-02-26

著者

• WATANABE Takashi

  Laboratory of Food Science, Department of Food Science and Technology, Faculty of Agriculture 46-09,

• KUWAHARA Masaaki

  Laboratory of Biomass Conversion, WOOD RESEARCH INSTITUTE, KYOTO UNIVERSITY

• Koshijima Tetsuo

  Faculty Of Agriculture Kinki University

• KARINA Myrtha

  Research Section of Lignin Chemistry, WOOD RESEARCH INSTITUTE, KYOTO UNIVERSITY

• Karina Myrtha

  Research And Developing Centre For Applied Physics Indonesian Institute Of Sciences

• Kuwahara M

  Institute Of Wood Technology Akita Prefectural University

• SUDIYANI Yani

  Research and Developing Centre for Applied Physics, Indonesian Institute of Sciences

• Sudiyani Yani

  Research And Developing Centre For Applied Physics Indonesian Institute Of Sciences

• Watanabe Takashi

  Laboratory of Biomass Conversion, RISH, Kyoto University

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