Adhesives from Agricultural By-Products and Waste


As a result of increased concerns over safety, environment and sustainability, protein-based adhesives have re-gained industry interest as an alternative to petroleum-based adhesives. A greater need now exists for modified protein adhesives that offer results comparable to their petroleum-based counterparts, and that can be produced at a reduced cost. It is currently estimated that up to 20 billion pounds of adhesives are used annually in the United States in the production of plywood, particleboard, labelling and packaging materials, among others.

Researchers at the University of Alberta have developed a novel process for the production of protein-based adhesives that use low-value animal and plant protein or waste as starting materials. The process involves the extraction and chemical modification of proteins from modified canola (the second-largest oilseed crop produced worldwide) or spent hens (hens near the end of their productive lives that are of little economic value to farmers). The dry strength, wet strength and soak strength of the adhesives produced were shown to be 9MPa, 3.5 MPa, and 7 MPa, respectively.


  • Free from formaldehyde
  • Renewable
  • Biocompatible
  • Starting materials that are low-value agriculture byproducts or waste.

Potential Markets

This invention will be of interest to companies involved in the production or use of adhesives.

Protection Status

Patent pending

Product Number


Contact Information

Rebecka Carroll
Technology Management Group
TEC Edmonton – University of Alberta
Phone: 780-492-6235