Method of extruding starch under low moisture conditions using feed starch having coarse particle size
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsPaul A. Altieri, Norman L. Lacourse, David E. Lueck
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Abstract
A method of extruding starch under low moisture conditions of 25% or less by weight to form an expanded product is provided and includes feeding inlet starch to an extruder, the starch having a particle size distribution such that 30% or more by weight have a particle size of at least 180 microns. In one embodiment, the inlet feed starch is dried using a continuous belt dryer.
Claims20
In a method of extruding starch having a total moisture content of 25% or less by weight based on the weight of starch, to form an expanded product, the improvement comprising feeding to the extruder an inlet feed which consists essentially of starch which is modified with up to 15% by weight of alkylene oxide containing 2 to 6 carbon atoms and having a particle size distribution such that 30% or more by weight of the starch has a particle size of from at least 180 to 2000 microns to form a product having a uniform, closed cell structure.
Dependencies are inferred from the claim text.