Heat Expanded Starch-Based Compositions 

 -  Journal of Agricultural and Food Chemistry, 55(10), p.3936-3943, 2007 .
<br/><br/> A heat expansion process similar to that used for expanded bead polystyrene was used to expand starch-based compositions. Foam beads made by solvent extraction had the appearance of polystyrene beads but did not expand when heated due to an open-cell structure. Nonporous beads, pellets, or particles were made by extrusion or by drying and milling cooked starch slurries. The samples expanded into a low-density foam by heating 190-210 °C for more than 20 s at ambient pressures. Formulations containing starch (50-85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>POLYSTYRENE FOAM<br/>PACKAGING<br/>MOLDING<br/>BIOPOLYMER