Adhesion improvement of lignocellulosic products by enzymatic pre-treatment.

Enzymatic bonding methods, based on laccase or peroxidase enzymes, for lignocellulosic products such as medium-density fiberboard and particleboard are discussed with reference to the increasing costs of presently used petroleum-based adhesives and the health concerns associated with formaldehyde emissions from current composite products. One approach is to improve the self-bonding properties of the particles by oxidation of their surface lignin before they are fabricated into boards. Another method involves using enzymatically pre-treated lignins as adhesives for boards and laminates. The application of this technology to achieve wet strength characteristics in paper is also reviewed.

[1]  C. Felby,et al.  Reactivity of a Fungal Laccase Towards Lignin in Softwood Kraft Pulp , 2003 .

[2]  A. Hüttermann,et al.  Enzymatic Activation of Wood Fibers for Wood Composite Production , 1998 .

[3]  P. Widsten,et al.  The influence of high defibration temperature on the properties of medium-density fiberboard (MDF) made from laccase-treated softwood fibers , 2004, Wood Science and Technology.

[4]  Ken K. Y. Wong,et al.  Effects of the laccase-mediator system on the handsheet properties of two high kappa kraft pulps , 1999 .

[5]  N. Reddy,et al.  Biofibers from agricultural byproducts for industrial applications. , 2005, Trends in biotechnology.

[6]  T. Schultz,et al.  Wood laminates glued by enzymatic oxidation of brown-rotted lignin , 1991 .

[7]  N. Lewis,et al.  Mechanisms of lignin degradation by lignin peroxidase and laccase of white-rot fungi. , 1989 .

[8]  P. Widsten,et al.  EFFECT OF HIGH-TEMPERATURE FIBERIZATION ON THE CHEMICAL STRUCTURE OF SOFTWOOD , 2001 .

[9]  T. M. Maloney,et al.  The family of wood composite materials , 1996 .

[10]  Hou‐min Chang,et al.  Decomposition of Lignin by White-rot Fungi. II. Characterization of Heavily Degraded Lignins from Decayed Spruce , 1975 .

[11]  T. Schultz,et al.  Structural Characterization of Brown-rotted Lignin , 1990 .

[12]  Adya P. Singh,et al.  Micromorphological characteristics of decayed wood and laccase produced by the brown-rot fungus Coniophora puteana , 2004, Journal of Wood Science.

[13]  E. L. Back,et al.  Glass transitions of wood components hold implications for molding and pulping processes [Wood and paper materials]. , 1982 .

[14]  P. Widsten,et al.  Effect of High-Temperature Defibration on the Chemical Structure of Hardwood , 2002 .

[15]  D. Fengel,et al.  Wood: Chemistry, Ultrastructure, Reactions , 1983 .

[16]  Laccase-catalyzed functionalization with 4-hydroxy-3-methoxybenzylurea significantly improves internal bond of particle boards , 2008 .

[17]  Antonio Pizzi,et al.  Advanced Wood Adhesives Technology , 1994 .

[18]  C. Ververis,et al.  Fiber dimensions, lignin and cellulose content of various plant materials and their suitability for paper production , 2004 .

[19]  A. Hüttermann,et al.  Properties of fibre boards obtained by activation of the middle lamella lignin of wood fibres with peroxidase and H2O2 before conventional pressing , 1998 .

[20]  P. Widsten,et al.  Radical formation on laccase treatment of wood defibrated at high temperatures , 2002 .

[21]  Hiromi Tanaka,et al.  Degradation of Lignin-Related Compounds, Pure Cellulose, and Wood Components by White-Rot and Brown-Rot Fungi , 1988 .

[22]  L. Zoia,et al.  BIOTECHNOLOGICALLY RELEVANT ENZYMES AND PROTEINS Laccase-initiated cross-linking of lignocellulose fibres using a ultra-filtered lignin isolated from kraft black liquor , 2007 .

[23]  I. Körner,et al.  Unsterile Fermentation von Hackschnitzeln – eine Holzvorbehandlungsmethode für die Faserplattenherstellung , 2001, Holz als Roh- und Werkstoff.

[24]  Hendrik F. Hameka,et al.  Chemistry: Fundamentals and Applications , 2001 .

[25]  E. Sjöström,et al.  Wood Chemistry: Fundamentals and Applications , 1981 .

[26]  A. Matuszewska,et al.  Fungal laccase: properties and activity on lignin , 2001, Journal of basic microbiology.

[27]  T. Elder,et al.  N-Hydroxy mediated laccase biocatalysis: Recent progress on its mechanism and future prospect of its application , 2002 .

[28]  P. Widsten,et al.  Radical formation on laccase treatment of softwoods defibrated at high temperatures. II. Studies with softwood fibers , 2002 .

[29]  P. Widsten,et al.  Effect of high defibration temperature on the properties of medium-density fiberboard (MDF) made from laccase-treated hardwood fibers , 2003 .

[30]  T. Kirk.  Effects of a Brown-Rot Fungus, Lenzites trabea, on Lignin in Spruce Wood , 1975 .

[31]  H. Call,et al.  History, overview and applications of mediated lignolytic systems, especially laccase-mediator-systems (Lignozym-process) , 1997 .

[32]  Carlos Regalado,et al.  Biotechnological applications of peroxidases , 2004, Phytochemistry Reviews.

[33]  C. Felby,et al.  Enhanced Auto Adhesion of Wood Fibers Using Phenol Oxidases , 1997 .

[34]  T. Sellers,et al.  Organosolv lignin-mofified phenolic resins , 1989 .

[35]  R. Bourbonnais,et al.  Oxidation of non‐phenolic substrates , 1990, FEBS letters.

[36]  C. Felby,et al.  Native lignin for bonding of fiber boards—evaluation of bonding mechanisms in boards made from laccase-treated fibers of beech (Fagus sylvatica) , 2004 .

[37]  A. Hüttermann,et al.  Room-Temperature Curing Adhesives Based on Lignin and Phenoloxidases , 1989 .

[38]  F. A. Cameron,et al.  Soda Bagasse Lignin Adhesives for Particleboard: Preliminary Results , 1989 .

[39]  Barry Goodell,et al.  Brown-rot fungal degradation of wood: our evolving view. , 2003 .

[40]  H. Unbehaun,et al.  Investigation into the biotechnological modification of wood and its application in the wood‐based material industry , 2000 .

[41]  A. Hüttermann,et al.  Enzymatic modification of lignin for technical use: strategies and results , 1989 .

[42]  C. Felby,et al.  Wet strength improvement of unbleached kraft pulp through laccase catalyzed oxidation. , 2001, Enzyme and microbial technology.

[43]  S. Mansfield,et al.  Enzymatic Treatment of Mechanical Pulp Fibers for Improving Papermaking Properties , 2000, Biotechnology progress.

[44]  C. Felby,et al.  Pilot-scale production of fiberboards made by laccase oxidized wood fibers: board properties and evidence for cross-linking of lignin , 2002 .