Submitted to: American Leather Chemists Association Meeting
Publication Type: Abstract Only
Publication Acceptance Date: 3/1/2015
Publication Date: 6/10/2015
Citation: Brown, E.M., Taylor, M.M., Bumanlag, L.P., Liu, C. 2015. Soluble collagen approach to a combination tannage mechanism [abstract]. American Leather Chemists Association Meeting. p. 103.
Technical Abstract: Although complex salts of Cr(III) sulfate are currently the most effective tanning agents, salts of other metals, including aluminum, have been used either alone or in combination with vegetable tannins or other organic chemicals. In the present study, the interactions of metallic sulfates, and condensed or hydrolysable tannins with collagen are investigated. A model system was devised to use soluble collagen in one compartment of an equilibrium dialysis cell, and solutions of metallic (Al, Cr) or polyphenolic tanning agents in the other compartment. After equilibration of the solutions, the effects on collagen stability are evaluated by spectroscopic techniques. Comparison of the interactions of various combinations with collagen is expected to provide insight into a more generalized mechanism for tanning.