PROPERTIES OF FIBER BOARDS OBTAINED BY ACTIVATION OF THE MIDDLE LAMELLA LIGNIN OF WOOD FIBERS WITH PEROXIDASE AND H2O2 BEFORE CONVENTIONAL PRESSING

When commercially produced wood fibres were treated with the enzyme pe roxidase and H2O2 for a certain time and then pressed together under c onditions usually employed during the process of making fibre boards, boards were obtained which came close to the required standards for Ge rman medium density fibre (MDF) boards. Thus, surprisingly, peroxidase in this system gives the same results as laccase, for which this reac tion has been described previously. Successful implementation of this process will yield wood composites which can be produced without any a ddition of resins, solely from naturally grown products.