The Effect of Lignin Structure on Decay Resistance of Some Tropical Woods

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概要

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• 11種の熱帯材の耐久性と含有リグニンの化学構造との関係を追究した。リグニンのニトロベンゼン酸化によればグアシルリグニン含量が大きいものはウリンEusideroxylon zwageri，バンキライShorea laevis，コキHopea pierrei，マラスHomaliumm foetidaであった。またこれらの樹種では脱リグニンの速さも小さいことがわかった。カワラタケに対する腐朽実験によると重量減少率の小さい木材もこれら4種であった。近時グアシルリグニン含量の大きい木材は白色腐朽菌に大きな耐久性を示すと言われているが，本研究における11種の熱帯材でも同傾向の事実を示した。This study examined the effect of lignin struture on decay resistance of some tropical hardwoods to the white-rot fungus of Coriolus versicolor. Among the wood samples tested, the lignin of Ulin wood (Eusideroxylon zwageri), Bangkirai (Shorea laevis), Koki (Hopea pierrei), and Malas (Homalium foetida), are primarily constituted of guaiacyl units, notwith-standing the fact that the wood are typical hardwoods. To assess the influence of lignin structure on the rate of decay, these peculiar hardwoods were then subjected to decay by C. versicolor. From the present investigation it can be interpreted that the hardwoods containing guaiacyl-rich lignin are more resistant than those of hardwoods containing syringyl-rich lignin.

• 東京大学大学院農学生命科学研究科附属演習林,The Tokyo University Forests,東京大学農学部材産学科,Department of Forest Products Technology, Faculty of Forestry, Bogor Agricultural University, PO BOX 69, Bogor, Indonesia,Department of Forest Products, Faculty of Agriculture, The University の論文

著者

• Syafii Wasrin

  Dept. Of Forest Products Technology Faculty Of Forestry Bogor Agricultural University

• Samejima M

  Department Of Forest Products Faculty Of Agriculture The University Of Tokyo

関連論文

• The Role of Lignin on Decay Resistance of Ulin (Eusideroxylon zwageri T. et B.) to Wood-rotting Fungi
• The Role of Extractives in Decay Resistance of Ulin Wood (Eusideroxylon zwageri T. et B.)
• Isolation of Syringaresinol from Paraserianthes falcataria (L.) Nielsen
• ウリン材の耐朽性におけるリグニンの役割〔英文〕
• ウリン(Eusideroxylon zwageri)心材のネオリグナン類〔英文〕
• The Effect of Lignin Structure on Decay Resistance of Some Tropical Woods
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• Purification and Some Properties of Two C_α-dehydrogenases Oxidizing Dimeric Lignin Model Compounds from Pseudomonas sp. TMY1009(Biological Chemistry)

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