Expanded starch-based shaped products and the method of preparation thereof

摘要

A biodegradable, structured shaped product having good flexibility or rigidity properties is provided by extruding starch having a relatively large defined particle size and preferably containing a nucleating agent. The invention is also directed to a biodegradable, water dispersible shaped core product useful in winding or rolling and storage of paper goods which is provided by extruding starch which has a selected particle size into an expanded, closed cell starch product.