Environmentally compatible wood Preservation without using heavy metals

2017 Fiscal Year Final Research Report

• Project/Area Number: 26450224
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Wood science
• Research Institution: Utsunomiya University
• Principal Investigator: HABU Naoto 宇都宮大学, 農学部, 教授 (10292575)
• Project Period (FY): 2014-04-01 – 2018-03-31
• Keywords: 木材保存 / 防腐 / ホウ素 / 木材腐朽菌 / タンパク質変性 / アゾール

Outline of Final Research Achievements

An environmentally compatible wood preservation was attempted by using whey protein isolate (WPI), which is a water-soluble protein and derived from milk whey. Sugi (Japanese cedar, Cryptomeria japonica D. Don) sapwood specimens were impregnated with WPI and heated to denature and insolubilize proteins. The fungal decay test using a brown-rot fungus Fomitopsis palustris and a white-rot fungus Trametes versicolor revealed higher durability of WPI-treated wood than control specimens. Their durability was further improved by adding antifungal components such as boric acid and cyproconazole, and the mass loss of 3% or less after decay test was accomplished.

Free Research Field

木材科学