Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: 8/9/2004
Publication Date: 10/18/2004
Citation: Selling, G.W., Sessa, D.J. 2004. Reaction of zein with suitable reagents to induce cross-links[abstract]. American Chemical Society. p.74:49.
Technical Abstract: In order to reduce the impact of moisture on physical properties of articles based on zein, the use of various reagents to induce cross linking were evaluated on a torque rheometer. Di, tri and tetra carboxylic acids were added to zein at levels between 5 and 20%. With suitable amounts of these reagents in the presence of water as a plasticizer, cross-linking occurred as evidenced by the very large increase in viscosity. SDS-PAGE analysis showed higher molecular weight bands. When tri(ethylene glycol) alone was used as the plasticizer, the cross-linking reaction did not occur as readily. The impact these treatments have on physical properties was evaluated.