Abstract
A study was conducted on adhesive and water-resistance properties of soy protein isolates modified by sodium dodecyl sulfate (SDS) (0.5, 1, and 3%) and sodium dodecylbenzene sulfonate (SDBS) (0.5, 1, and 3%) and applied on walnut, cherry, and pine plywoods. Soy proteins modified by 0.5 and 1% SDS showed greater shear strengths than did unmodified protein. One percent SDS modification had the highest shear strength within each wood type tested. Soy proteins modified with 0.5 and 1% SDBS also showed greater shear strengths than did the unmodified protein. The 1% SDBS-modified soy protein had the highest shear strength in all wood samples tested. Compared to the unmodified protein, the modified proteins also exhibited higher shear strengths after incubation with two cycles of alternating relative humidity and zero delamination rate and higher remaining shear strengths after three cycles of water soaking and drying. These results indicate that soy proteins modified with SDS and SDBS have enhanced water resistance as well as adhesive strength. Possible mechanisms for the effects of SDS and SDBS also are discussed.
Similar content being viewed by others
References
Johnson, L.A., D.J. Myers, and D.J. Burden, Early Uses of Soy Protein in Far East, INFORM 3:282–284 (1984).
Lambuth, A.L., Protein Adhesives for Wood, in Handbook of Adhesive Technology, edited by A. Pizzi and K.L. Mittal, Marcel Dekker, Inc., New York, 1994, pp. 259–281.
Myers, D.J., Industrial Applications for Soy Protein and Potential for Increased Utilization, Cereal Foods World 38:355–358 (1993).
Wolf, W.J., Soybean Proteins: Their Functional, Chemical, and Physical Properties, J. Agric. Food Chem. 18:969–976 (1970).
Kinsella, J.E., Functional Properties of Soy Proteins for Food Applications, J. Am. Oil Chem. Soc. 56:242–258 (1979).
Wu, Y.V., and G.E. Inglet, Denaturation of Plant Proteins Related to Functionality and Food Applications. A Review, J. Food Sci. 39:218–225 (1974).
Hettiarachchy, N.S., U. Kalapathy, and D.J. Myers, Alkali-Modified Soy Protein with Improved Adhesive and Hydrophobic Properties, J. Am. Oil Chem. Soc. 72:1461–1464 (1995).
Sun, X., and K. Bian, Shear Strength and Water Resistance of Modified Soy Protein Adhesives, ——Ibid. 76:977–980 (1999).
Huang, W.N., and X. Sun, Adhesive Properties of Soy Proteins Modified by Urea and Guanidine Hydrochloride, ——Ibid. 77:101–104 (2000).
Tanford, C., Protein Denaturation, in Advances in Protein Chemistry, edited by C.B. Anfinsen, M.L. Anson, J.T. Edsall, and F.M. Richards, Academic Press, Inc., New York, 1968, pp. 121–283.
ASTM Standards for Wood and Adhesives (D-1183), Annual Book, American Society of Testing and Materials, Philadelphia, 1981, pp. 407–409.
Kalapathy, U., N.S. Hettiarachchy, D. Myers, and M.A. Hanna, Modification of Soy Proteins and Their Adhesive Properties on Woods, J. Am. Oil Chem. Soc. 72:507–510 (1995).
Narhi, L.O., M. Zukowski, and T. Arakawa, Stability aprA-Subtilism in Sodium Dodecyl Sulfate, Arch. Biochem. Biophys. 261:161–169 (1988).
Reynolds, J.A., S. Herbert, H. Polet, and J. Steinhardt, The Binding of Divers Detergent Anions to Bovine Serum Albumin, Biochemistry 6:937–947 (1967).
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Huang, W., Sun, X. Adhesive properties of soy proteins modified by sodium dodecyl sulfate and sodium dodecylbenzene sulfonate. J Amer Oil Chem Soc 77, 705–708 (2000). https://doi.org/10.1007/s11746-000-0113-6
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s11746-000-0113-6