Pulp as Biodegradable Plastic in Disposable Food Containers
USDA ARS
By Rosalie Marion Bliss
January 16, 2013
U.S. Department of Agriculture (USDA) scientists and university cooperators have developed a biodegradable plastic that could be used in disposable food containers. The plastic, called a thermoplastic, becomes soft when heated.
To make the plastic, Agricultural Research Service (ARS) scientists incorporated biodegradable sugar beet pulp, which is the leftover residue from sugar extraction, with a biodegradable polymer. The result is thermoplastic composites that retain mechanical properties similar to polystyrene and polypropylene, the compounds used to make white, spongy food packages.
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