Foaming properties of soybean protein-based plywood adhesives |
| |
Authors: | Milagros P Hojilla-Evangelista Larson B Dunn Jr |
| |
Affiliation: | (1) Plant Polymer Research, USDA, ARS, NCAUR, 1815 N. University St., 61604-3999 Peoria, IL;(2) Present address: Williams Bio-Energy, 1300 S. 2nd St., 61554 Pekin, IL |
| |
Abstract: | A study was conducted to evaluate the potential of soy protein-based plywood glues for foam extrusion. Foaming properties
were the first criterion used to screen several soy protein sources. Foaming capacities and stabilities of glue mixes containing
animal blood (control) or soy products (meals, flours, concentrates, and isolates) were compared and correlated with molecular
weights and surface hydrophobicity indices (S
o) in an attempt to identify structure/function relationships. The blood-based glue mix produced more foam than any of the
soy-based glues. Soy flours and concentrates generally produced greater foam volumes and more stable foams than soy meal and
isolates. Differences in foaming properties could not be explained by solubility profiles or S
o. However, results of gel electrophoresis indicated that soy products with poor foaming properties had extensive structure
modifications or contained considerably lesser amounts of protein available for foaming reactions. Glue mixes containing the
soy flours ISU-CCUR, Honeysoy 90, Nutrisoy 7B, and defatted Soyafluff and the soy concentrates Arcon F, ISU-CCUR, and Procon
2000 demonstrated the desired mixing and foaming properties for foam extrusion. |
| |
Keywords: | Animal blood protein foaming capacity foam extrusion foam stability plywood glue soy proteins |
本文献已被 SpringerLink 等数据库收录! |
|