• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The use of chitin and chitosan for the improvement of durability performance of wood and biological activity function in trees

Research Project

Project/Area Number 02454075
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionTottori University

Principal Investigator

SAKUNO Tomoyasu  Tottori Univ., Fac. Agric. Professor, 農学部, 教授 (10032567)

Co-Investigator(Kenkyū-buntansha) KAWADA Toshinari  Tottori Univ., Fac. Agric. Research Assoc., 農学部, 助手 (40214655)
FURUKAWA Ikuo  Tottori Univ., Fac. Agric. Assoc. Prof., 農学部, 助教授 (50032313)
HASHIZUME Hayato  Tottori Univ., Fac. Agric. Professor, 農学部, 教授 (60032075)
Project Period (FY) 1990 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1992: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1991: ¥1,200,000 (Direct Cost: ¥1,200,000)
Keywordschitin / chitosan / chitosan oligosaccharides / wood decay resistance / preservative treatment / light discoloration resistance / tree physiological activity / hydroponics / 接着性の向上 / 木材防剤併用処理 / オートクレーブの処理 / 二量体の合成 / 木材の光変色 / 水耕裁培 / 木材の防かび性 / 樹木生体活性 / 木材の表面塗装性 / 木材の接着耐久性
Research Abstract

Fundamental research on the improvement of wood decay resistance and durability of wood surface using chitin and chitosan, specifically chitosan and the action of chitosan oligosaccharides in promoting physiological activity in trees was conducted. The results are as follows.
1. Stepwise breakdown of polymeric chitosan by acid hydrolysis method lead to the success in the preparation of low molecular weight chitosan and chitosan-oligosaccharides with degree of polymerization (D.P.) of 2-9. On the other hand, a new ON-type disaccharide which affects physiological activity was synthesized from D-glucosamine, the structural unit of chitosan. Further, using this as the repeating unit, a method for synthesizing chitosan oligosaccharides with definite D.P. was established.
2. Using the hardwood shirakanba and the conifer hinoki in conducting hydroponic culture, the investigation of the effect of chitosan-oligosaccharides was made. From the experiment on hydroponic solutions added with chitosan … More oligosaccharides, it was ascertained that at extremely micro-amount, chitosan-oligosaccharides posses physiological activity. The results showed that in respective seedlings, chitosan-oligosaccharide of specific D.P. atspecific concentration has either growth-promoting or inhibiting effect.
3. Upon the application of high and low molecular weight chitosan on wood surface, there was a marked improvement in the decay resistance, bond durability and resistance to light discoloration.
4. It was proved that the decay resistance performance was improved by pre-treating wood with chitosan followed by treatment with extremely small amount of commercial preservative. It was confirmed by scanning electron microscopy coupled with X-ray analysis that micro-amount of preservative components were distributed in the chitosan membrane. It is thought that chitosan membrane prevented hyphal invasion resulting to improved preservative performance.
From the results discussed above, it was confirmed that chitosan and chitosan-oligosaccharides are effective in improving the durability performance of wood and the physiological activity of trees. Less

Report

(4 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • 1990 Annual Research Report
  • Research Products

    (14 results)

All Other

All Publications (14 results)

  • [Publications] Yuji KiKKAWA,Toshinari KAWADA,IKUO FURUKAWA,Tomoyasu SAKUNO: "A con enjent Preparation Methad of Chito-oligo-Saccharides by Acid Hydrolysis" Journal of the Faculty of Agriculture Tottori University. 26. 9-17 (1990)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 中下 典昭,古川 郁夫,川田 俊成,作野 友康: "甲殻類キチン質を用いた木材り改質(II)低分子キトサン処理木材の耐朽性" 広葉樹研究. 6. 161-168 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 李 鍾信,古川 郁夫,作野 友康: "キトサン前処理後にCCA系防腐剤を注入した木材中における防腐剤成分元素の微細分布" 木材学会誌. 38. 186-192 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 李 鍾信,古川 郁夫,作野 友康: "キトサン前処理後にCCA系防腐剤を注入した木材のオオウズラタケに対する防腐性能" 木材学会誌. 39. 103-108 (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Yuji KIKKAWA, Toshinari KAWADA, Ikuo FURUKAWA and Tomoyasu SAKUNO: "A convenient Preparation Method of Chitooligosaccharide by Acid Hydrolysis" Journal of Faculty of Agriculture, Tottori University. 26. 9-17 (1990)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Noriaki NAKASHITA, Ikuo FURUKAWA, Toshinari KAWADA and Tomoyasu SAKUNO: "Improvement of Wood Quality with Chitin and Chitosan (III) Decay Resistance of Wood Treated with Low-molecular-weight Chitosan" Hardwood Research. No.6. 161-168 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Jong-shin Lee, Ikuo FURUKAWA and Tomoyasu SAKUNO: "Microdistribution of Elements in Wood after Pre-treatment with Chitosan and Impreg-nation with Copper-Chrome-Arsenic Preservative." Mokuzai Gakkaishi. 38. 186-192 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Jong-shin Lee, Ikuo FURUKAWA, and Tomoyasu SAKUNO: "Preservative Effectiveness against Tyromyces palustris in wood after Pre-treatment with Chitosan and Impregnation with Chromated Copper Arsenate" Mokuzai Gakkashi. 39. 103-108 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 李 鐘信,古川 郁夫 作野 友康: "キトサン前処理後にCCA系防腐剤を注入した木材のオオウズラタケに対する防腐性能" 木材学会誌. 39. 103-108 (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] 中下 典昭,古川 郁夫,川田 俊成,作野 友康: "甲穀類キチン質を用いた木材の改筒(II)低分子キトサン処理木材の耐朽性" 広葉樹研究. 6. 161-168 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 李 鐘信,古川 郁夫,作野 友康: "キトサン前処理後にCCA系防腐剤を注入した木材中における防腐剤成分元素の微細分布" 木材学会誌. 38. 186-192 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 熊谷 元,古川 郁夫,作野 友康,岸本 潤: "キトサン処理木材の防かび性キトサン処理及び硫酸銅との併用処理した木材の防かび効力の評価" 鳥取大学農学部演習林研究報告. 19. 59-65 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] 古川 郁夫・石原 肇・中下 典昭: "キトサン塗布処理木材の木材腐朽菌に対する耐朽性について" 木材保存. 16. 245-252 (1990)

    • Related Report
      1990 Annual Research Report
  • [Publications] Yuji KIKKAWA,Toshnari KAWADA,Ikuo FURUKAWA,Tomoyasu SAKUNO: "A con enient Preparation Method of chitooligoーSaccharides by Acid Hydrolysis" Journal of the Faculty of Agriculture Tottori University. 26. 9-17 (1990)

    • Related Report
      1990 Annual Research Report

URL: 

Published: 1991-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi