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United States Department of Agriculture

Agricultural Research Service

Title: Reaction of Zein with Suitable Reagents to Induce Cross-Links

item Selling, Gordon
item Sessa, David

Submitted to: Meeting Abstract
Publication Type: Abstract Only
Publication Acceptance Date: August 9, 2004
Publication Date: October 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.

Last Modified: 4/21/2015
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