Preliminary Studies on Converting Agricultural Waste into Biodegradable Plastics, Part I: Corn Distillers? Dry Grain

Distillers' dry grain (DDG) was derivatized either by carboxymethylation, glutaration, maleiation, phthallation, or succination in order to produce anionic materials suitable for complexation with soy protein isolate. Infrared spectroscopy confirmed that derivatization of DDG by all reagents wa...

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Bibliographic Details
Published in:Journal of polymers and the environment 2004-10, Vol.12 (4), p.257-264
Main Authors: Schilling, Christopher H, Tomasik, Piotr, Karpovich, David S, Hart, Bruce, Shepardson, Sally, Garcha, Jagdeep, Boettcher, Paul T
Format: Article
Language:English
Subjects:
Agricultural wastes
Biodegradation
Bioplastics
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Summary:Distillers' dry grain (DDG) was derivatized either by carboxymethylation, glutaration, maleiation, phthallation, or succination in order to produce anionic materials suitable for complexation with soy protein isolate. Infrared spectroscopy confirmed that derivatization of DDG by all reagents was successful. Blending of derivatized anionic products with soy protein resulted in instant precipitation of gels. The gels were centrifuged, molded, and dried into solid pellets with tensile strengths as high as 1.67MPa, suggesting that these materials could be promising as biodegradable structural materials. Infrared spectroscopy suggested the possibility of complexes forming between soy protein isolate and each of the derivatized DDG samples.
ISSN:1566-2543
1572-8900
1572-8919
DOI:10.1007/s10924-004-8317-z