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Updated: Nov 26, 2025

Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites
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Production and Testing of Moisture Behavior and Thermal Properties of Rapeseed Straw and Ganoderma resinaceum Mycelium Bio-Composites

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Functionality of Surface Mycelium Interfaces in Wood Bonding.

Wenjing Sun1,2, Mehdi Tajvidi1,2, Caitlin Howell3,4

  • 1Laboratory of Renewable Nanomaterials, School of Forest Resources, University of Maine, Nutting Hall, Orono, Maine 04469-5755, United States.

ACS Applied Materials & Interfaces
|December 11, 2020
PubMed
Summary
This summary is machine-generated.

Filamentous fungi, like Trametes versicolor, can enhance wood bonding in biobased composites. Surface mycelium improves adhesion between wood layers, offering a sustainable alternative to petroleum-based materials.

Keywords:
bondinginterfacelap-shear strengthmyceliumveneerwood

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Area of Science:

  • Biomaterials Engineering
  • Mycology
  • Sustainable Materials Science

Background:

  • Filamentous fungi are explored as eco-friendly replacements for petroleum-based adhesives and plastics in composite materials.
  • The specific role of surface mycelium in lignocellulosic composite adhesion remains unclear.
  • Understanding mycelial functionality is key for developing advanced biobased composites.

Purpose of the Study:

  • To investigate the functionality of surface mycelium in wood bonding.
  • To evaluate if Trametes versicolor mycelium enhances the adhesion between yellow birch wood veneers.
  • To assess the impact of mycelium coverage on composite lap-shear strength.

Main Methods:

  • Incubation of yellow birch veneers with Trametes versicolor.
  • Hot-pressing of wood veneers to form composite samples.
  • Measurement of lap-shear strength to quantify bonding effectiveness.
  • Analysis of mycelium surface properties (hydrophilicity, structure, functional groups).

Main Results:

  • Lap-shear strength increased with surface mycelium coverage, reaching up to 1.74 MPa after 8 days of incubation.
  • Significant wood weight loss was not observed during the incubation period.
  • The bottom surface of the mycelium exhibited higher hydrophilicity, finer filamentous structure, and more functional groups, promoting better wood bonding.

Conclusions:

  • The surface mycelium layer of Trametes versicolor significantly enhances wood bonding.
  • The hydrophilic nature and structural characteristics of the mycelium's bottom surface are crucial for improved adhesion.
  • These findings support the use of fungal mycelium in manufacturing fully biobased composites.