Industrial Agricultural Products Center
Biopolymers, Biochemicals, Biofuels, Biopower
Protein Research and Development
Researchers are identifying and developing new industrial uses for proteins found in soybeans and wheat. These commodities are excellent candidates for films and coatings. The pharmaceutical industry already uses a corn-based protein film to make pills easier to swallow. The same film gives jelly beans and dried fruits their shiny appearance and helps retard spoilage of nutmeats.
Protein from wheat, soybeans, chicken skin and egg whites can provide films and coatings that enhance the flavor, appearance and nutritional value of foods, and provide a protective barrier against moisture and gases that promote spoilage. In a related area, IAPC researchers are developing blown film bags and wrappings for use in the packaging industry. This technology will be used to make products such as dry cleaning bags and trash can liners which are usually discarded as trash rather than recycled. By chemically bonding soybean or wheat protein to polyethylene, IAPC researchers hope to improve the elastic properties of the films, making them less likely to crack or tear. Because
of their protein base, the improved films will be more readily degradable than their 100 percent plastic counterparts.
Adhesives
Protein-based wood adhesives were used before World War II. They lacked water resistance, however, and were replaced with petroleum-based products. Recent changes in EPA regulations governing volatile organic compounds (VOCs) have caused the adhesives industry to look for alternatives. IAPC scientists are working with researchers at Iowa State University and the University of Arkansas to develop a protein-based adhesive that is functional, cost-effective and water-resistant. It will be used in particleboard and other laminated wood products.
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For further information, contact the University of Nebraska-Lincoln,
Industrial Agricultural Products Center, 208 L.W. Chase Hall, Lincoln, NE 68583-0730.
Telephone call: (402) 472-1634; Fax: (402) 472-6338