Grain Processing Corporation

E Daniel Hubbard

Terry V Andren

Lin Wang

Roger E McPherson

Jeff Underwood

Susan Freers

Tonya Armstrong

Michael Kramer

Pete Miller

Richard D Harvey

Thomas A Wiesner

Adrian P Kightlinger

Frank J Gute

Robert A Meintrup

Robert L Olson

Mark L Hogen

Disclosed is a cold-water soluble starch and a process for preparing same. Generally, the process comprises providing a hydroxyalkyl starch and applying a shearing force to the starch in an extruder in the presence of moisture, the force and the moisture each being sufficient to gelatinize at least substantially all of the granules of the starch to thereby form a sheared starch. The starch is heated to its gelatinization temperature after the starch has passed partially through the barrel of the extruder, with the moisture being maintained at a level sufficiently high to allow gelatinization but sufficiency low to protect the starch from becoming too sticky to extrude. The extruded starch product thus formed may be used in connection with a number of film-forming, coating, and other applications.

Cold-water soluble extruded starch product

Process using cold-water soluble extruded starch

Disclosed is a method for preparing a modified starch hydrolysate that has a relatively reduced tendency to become sticky as compared with the unmodified starch hydrolysate. The method includes the step of compacting a starch hydrolysate, preferably via roller compaction. Also disclosed is a modified starch hydrolysate. The compacted starch hydrolysates may be transported readily, and is useful in numerous applications, including poultry feed applications.

Compacted starch hydrolysate product with improved handling characteristics and reduced tendency to become sticky

Starch phosphates are prepared by reacting with an alkaline starch paste while maintaining an alkaline pH a phosphate salt at a temperature of about 45.degree. to 95.degree. C. for a period of not more than about 120 minutes. Amphoteric starch phosphates are prepared by also reacting with the starch paste a cationizing agent.

Starch phosphates and amphoteric starch phosphates

A substantially water-insoluble solid liquid-absorbing composition comprising an alkali metal salt of an aqueous alcoholic alkali saponified cross-linked homopolymer of acrylonitrile or methacrylonitrile and the process for the preparation thereof.

Absorbent compositions

A process for preparing a cationic starch dispersion wherein an alkaline, gelatinized starch is reacted with a cationic reagent either concurrently with, or subsequently to, the cooking process resulting in a product in which the cationic reagent is chemically bound to the starch molecule. The process is conducive to on-site preparation of a cationic starch derivative which can be utilized without additional treatment as a papermaking adjunct, textile size, waste-water treatment or tailings flocculent, etc.

Preparation of a cationic starch paste

A process whereby a gelatinized starch having a cationic reagent chemically bound to the starch backbone and a reduced viscosity is prepared by (1) gelatinizing starch and substantially simultaneous with gelatinization reacting said treated starch with an alkyl or alkenyl amine and a water soluble oxidant or (2) simultaneously reacting an alkyl or alkenyl amine and a water soluble oxidant with a gelatinized starch. The process is conducive to the on-site preparation of a thinned cationic starch derivative which can be utilized without additional treatment as a papermaking additive, textile size, waste water treatment, tailing flocculent, etc.

Continuous process for preparation of a thinned cationic starch paste

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West Liberty, IA, United States of America

E Daniel Hubbard