Added Chemical Patents (Class 127/33)
  • Patent number: 5695803
    Abstract: Modified starch materials having a number average molecular weight of at least 10,000 for nutritional products provide a relatively slow release of metabolizable carbohydrates, giving a source of carbohydrate energy over a longer period of time than can be obtained from glucose and other carbohydrates such as lactose, fructose, or sucrose.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 9, 1997
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Rickey L. Sharp, John F. Robyt, Murray L. Kaplan
  • Patent number: 5611956
    Abstract: Two-component polyurethane sealants, in particular for the direct glazing of motor vehicles, comprising (A) a pasty polyurethane component containing a polyurethane prepolymer having free isocyanate groups, and a curing agent, and (B) a pasty water-containing component, component (A) containing a blocked curing agent which can be liberated by water, and component (B) containing the water, reversibly bonded to a carrier substance which liberates the watering a delayed manner after components (A) and (B) have been mixed.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: March 18, 1997
    Assignee: Bostik, Inc.
    Inventors: Gerhard Piestert, Bodo Muller
  • Patent number: 5605577
    Abstract: A process wherein a grain flour is treated to remove proteins is described. The process uses ethanol and water for the extraction at acid or basic pH's and optionally heating with or without a reducing agent. The remaining solution is then used to form edible and biodegradable films by casting on a surface.
    Type: Grant
    Filed: November 28, 1995
    Date of Patent: February 25, 1997
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Luis M. Rayas, Perry K.W. Ng
  • Patent number: 5519011
    Abstract: A method for decreasing a content of lipid and total cholesterol in serum and increasing a relative content of HDL cholesterol in serum which comprises the steps:(a) providing a pyrodextrin hydrolysate which is obtained by heating starch in the presence of an acid and hydrolyzing the pyrodextrin with .alpha.-amylase; and(b) administering an effective amount of the pyrodextrin hydrolysate to an animal.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: May 21, 1996
    Assignee: Matsutani Chemical Industries Co., Ltd.
    Inventors: Shigeru Wakabayashi, Mitsuko Satouchi, Kazuhiro Ohkuma
  • Patent number: 5472511
    Abstract: A process wherein a grain flour is treated to remove proteins is described. The process uses ethanol and water for the extraction at acid or basic pH's and optionally heating with or without a reducing agent. The remaining solution is then used to form edible and biodegradable films by casting on a surface.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: December 5, 1995
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Luis M. Rayas, Perry K. W. Ng
  • Patent number: 5451673
    Abstract: High modulus, flexible films may be fabricated from blends of pectin, starch and, optionally, plasticizers. The films are biodegradable, water soluble and are advantageous in that all materials are derived from agricultural products.
    Type: Grant
    Filed: April 23, 1993
    Date of Patent: September 19, 1995
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Marshall L. Fishman, David R. Coffin
  • Patent number: 5395640
    Abstract: A method of preparing reduced fat foods is provided which employs a fragmented, debranched amylopectin starch precipitate. A debranched amylopectin starch is precipitated and then fragmented to form an aqueous dispersion that is useful in replacing fat in a variety of food formulations. The debranched amylopectin starch can be derived from a starch which contains amylopectin, e.g. common corn starch and waxy maize starch, by gelatinizing the starch followed by treatment with a debranching enzyme, e.g. isoamylase or pullulanase and precipitation of the debranched starch.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: March 7, 1995
    Assignee: A.E. Staley Manufacturing Company
    Inventors: Donald W. Harris, Jeanette A. Little
  • Patent number: 5387426
    Abstract: A method of preparing reduced fat foods is provided which employs a retrograded, hydrolyzed, heat-treated, and fragmented, amylose starch. Amylose is precipitated and hydrolyzed with acid or .alpha.-amylase, solubles are removed by a heat treatment and the resulting solids are then fragmented to form an aqueous dispersion that is useful in replacing fat in a variety of food formulations. The amylose can be derived from a native starch which contains amylose, e.g. common corn starch and high amylose corn starch, by gelatinizing the starch followed by precipitation of the amylose.
    Type: Grant
    Filed: October 30, 1992
    Date of Patent: February 7, 1995
    Assignee: A.E. Staley Manufacturing Company
    Inventors: Donald W. Harris, Jeanette A. Little, Keith D. Stanley
  • Patent number: 5336328
    Abstract: A white waxy corn starch dextrin produces a paste of excellent color and clarity when compared to waxy corn starch dextrins without the need for bleaching.
    Type: Grant
    Filed: November 5, 1991
    Date of Patent: August 9, 1994
    Assignee: American Maize Technology, Inc.
    Inventors: David Mauro, Ronald Kozlowski, Larry Benko
  • Patent number: 5291877
    Abstract: A gel having a low concentration of starch and a short texture, distinguished by its elasticity as opposed to its viscosity, is prepared by treating a gelatinized starch in an aqueous mixture with an emulsifier suitable for forming an amylose-emulsifier inclusion complex and then cooling to gel the mixture, or by simultaneously, in aqueous mixture, gelatinizing a native starch and complexing amylose released from the starch with an emulsifier suitable for forming an amylose-emulsifier inclusion complex and then cooling to gel the mixture. The gel has a conservation modulus from 5 Nm.sup.-2 to 50 Nm.sup.-2 and a dissipation modulus of from 1 Nm.sup.-2 to 10 Nm.sup.-2.
    Type: Grant
    Filed: May 21, 1992
    Date of Patent: March 8, 1994
    Assignee: Nestec S.A.
    Inventors: Beatrice Conde-Petit, Felix Escher
  • Patent number: 5192576
    Abstract: The thick-thin retort starch is an oxidized, hydroxy alkylated starch. The base starch is either a waxy or a root starch. The degree of substitution is up to 0.93 and the etherification agent is ethylene oxide or propylene oxide. The oxidation step is conducted after the etherification. Oxidation is accomplished with sodium or calcium hypochlorite at a pH of 4 to 5. A non-substituted, oxidized waxy or root starch also has thick-thin properties.
    Type: Grant
    Filed: October 11, 1991
    Date of Patent: March 9, 1993
    Assignee: American Maize-Products Company
    Inventors: Shau-Gan Chang, Linda L. Charlton, Jane D. Gottneid, Ibrahim R. Abbas
  • Patent number: 5158770
    Abstract: An aqueous solution containing a high concentration of ginkgo leaf extract having good preservability is prepared. The aqueous solution containing ginkgo leaf extract comprises at least 1 weight % of a hydrous organic solvent extract obtained from ginkgo leaf, and further disaccharide alcohols and/or trisaccharide alcohols, and/or organic compounds having a basic nitrogen atom in the molecule and a solubility in water at normal temperature of at least 10 g/100 ml.
    Type: Grant
    Filed: December 27, 1990
    Date of Patent: October 27, 1992
    Assignees: Freund Industrial Co., Ltd., Japan Greenwave Ltd.
    Inventors: Yukihiro Saito, Naomi Yoshida, Seiichi Umeda
  • Patent number: 5158615
    Abstract: Porous modified gelatinized cereal flour that has high swelling property in cold water, high solubility and good digestability and which is useful as a fragrance adsorbent or an emulsion stabilizer. Also disclosed is a process for producing such porous gelatinized cereal flour which comprises adding water to a cereal flour containing starch as a principal component, heating said flour to gelatinize it, adding an alcohol to the gelatinized flour, and freeze-drying the same.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: October 27, 1992
    Assignee: Suntory Limited
    Inventors: Tadashi Nagai, Yayoi Nademoto
  • Patent number: 5094872
    Abstract: The method for making a reduced fat foodstuff entails replacing at least a portion of the fat and/or oil in the foodstuff with a high amylose starch hydrolysate having an apparent amylose content above about 40% and a DE greater than 5 and less than 15.0. A high amylose corn starch is the preferred starch base.
    Type: Grant
    Filed: November 21, 1990
    Date of Patent: March 10, 1992
    Assignee: American Maize-Products Company
    Inventors: Susan L. Furcsik, David J. Mauro, Leonard Kornacki, Eugene J. Faron, Frances L. Turnak, Roger Owen
  • Patent number: 5057157
    Abstract: A process for the preparation of granular cold water swelling/soluble starches by alcoholic-alkali treatments is disclosed which comprises contacting a quantity of starch granules with respective quantities of an alcohol and a strong base to swell the granules and convert the starch to form having increased cold water solubility. The process can be used on waxy, high amylose, tuber, and normal starches. The resulting cold water swelling/soluble starch preferably exhibits about 50% to 94% solubility in cold water.
    Type: Grant
    Filed: October 22, 1990
    Date of Patent: October 15, 1991
    Assignee: Kansas State University Research Foundation
    Inventors: Jay-lin Jane, Paul A. Seib
  • Patent number: 4985082
    Abstract: Amylase treated granular starches provide a microporous matrix material adapted for absorption and releasable containment of functional compositions. The microporous starch granules are chemically derivatized to enhance absorptive and structural properties. Absorbed functional substances are released from the microporous starch matrix under the influence of mechanical compression, by diffusion into a surrounding fluid or as a result of degradation of the granular starch matrix.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: January 15, 1991
    Assignee: Lafayette Applied Chemistry, Inc.
    Inventor: Roy L. Whistler
  • Patent number: 4973447
    Abstract: Improved dual modified waxy barley starch products are provided which exhibit excellent freeze-thaw stability and other properties making the starches eminently suited for incorporation into food products such as pie fillings or the like. Separated waxy barley starch is subjected to sequential hydroxypropylation (at a level to provide at least about thre percent by weight hydroxypropyl groups) and cross-linking (phosphorus oxychloride or sodium trimetaphosphate) to provide the products of the invention.
    Type: Grant
    Filed: March 1, 1990
    Date of Patent: November 27, 1990
    Assignee: Kansas State University Research Foundation
    Inventors: Paul A. Seib, Yangsheng Wu
  • Patent number: 4969955
    Abstract: A modified pregelatinized starch which is readily dispersible in water comprising a pregelatinized starch coated with from 0.05 to 20% by weight of a food grade emulsifier. A process for producing a coated pregelatinized starch comprising blending a pregelatinized starch with a mixture of a non-toxic solvent and a food grade emulsifier followed by removing the solvent.
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: November 13, 1990
    Assignee: S. C. Johnson & Son, Inc.
    Inventor: Richard E. Rudin
  • Patent number: 4941921
    Abstract: A process which includes the step of adding boric acid or a borate such as borax to a mixing or reaction zone e.g. to a starch glue preparation in which the boric acid or borate is added in the form of a liquid composition containing monoethanolamine or a polyhydroxyorganic compound such as glucose and optionally but preferably water.
    Type: Grant
    Filed: January 11, 1989
    Date of Patent: July 17, 1990
    Assignee: Cerestar Holding DV
    Inventors: Jure Anic, Walburga Dederichs, Lucas E. A. Huybrechts, Harry Johnson
  • Patent number: 4859248
    Abstract: A process for simultaneously atomizing, cooking, and drying a mixture of starch and water in the exhaust gas stream from a sonic pulse jet combustion engine is described. The process consists of preparing a mixture of a granular starch with water (preferably a starch cake), feeding the mixture into the exhaust pipe of the jet combustion engine, maintaining the resulting mixture of atomized starch, water, and hot gas in the exhaust pipe for a time sufficient to gelatinize and substantially dry the atomized starch, and recovering the pregelatinized starch powder by exhausting the mixture into a collection chamber supplied with a flow of air.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: August 22, 1989
    Assignee: National Starch and Chemical Corporation
    Inventors: Martin D. Thaler, Roger W. Rubens
  • Patent number: 4859484
    Abstract: A starch, hydrated with between 0.7 and 2.0 parts of water and which has been brought to the verge of gelatinization, is combined with a hydrocolloid gum, which also may have been pre-hydrated, to form a mixture. The mixing process is designed to achieve the following objectives: intimately mixing the hydrocolloid gum with the starch as the latter is gelatinizing; heating the uniform blend under pressure but under low enough shear to preclude starch degradation; and extruding it through a die so that it expands and creates a product with a large surface area to facilitate drying. As an objective measure of processing effectiveness, the product should yield water viscosities which are equal to those obtained from the raw materials when present in 10-20% excess. In subjective test the processed mixture should perform better at 10-20% less usage level than the unprocessed mixtures when used in stabilizing frozen desserts, sour cream and dressings.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: August 22, 1989
    Assignee: Continental Colloids, Inc.
    Inventors: Edward Bielskis, Albert J. Leo, Jane K. Zeien
  • Patent number: 4839060
    Abstract: Modified starch compositions and their use for flocculating mineral waste residues, particularly the red mud containing alumina liquors from bauxite residues, comprising the addition to an alumina liquor of a flocculating amount of a methylated starch which, optionally, may be hydrolyzed, or a methylated starch which is also sulfonated and, optionally, may be hydrolyzed. Preferably, the methylated starch compositions are potato and dasheen starch derivatives prepared at temperatures of about 50.degree. to about 85.degree. C.
    Type: Grant
    Filed: October 21, 1987
    Date of Patent: June 13, 1989
    Assignee: Suncor, Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4838944
    Abstract: A process for the degradation of granular starch employing hydrogen peroxide and a catalytic amount of manganese ions in an alkaline slurry reaction is disclosed. The manganese ions catalyze the degradative reaction so that the desired amount of degradation of the granular starch can be brought about in a shorter reaction period as opposed to a reaction run without manganese ions.
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: June 13, 1989
    Assignee: National Starch and Chemical Corporation
    Inventor: Leo H. Kruger
  • Patent number: 4810785
    Abstract: A method of improving the utility of corn bran (i.e., hulls derived from milling) is provided. The corn bran is crosslinked with a polyvalent compound capable of forming a plurality of covalent bonds to one or more constituents of the corn bran. The crosslinked corn bran finds particular utility in papermaking. Paper furnishes and paper products derived therefrom are also provided.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: March 7, 1989
    Assignee: A. E. Staley Manufacturing Company
    Inventor: Donald L. Johnson
  • Patent number: 4787939
    Abstract: A process for the modification, solubilization and/or hydrolysis of a glycosidically linked carbohydrate having reducing groups using a mixture comprising water, an inorganic acid and a halide of lithium, magnesium or calcium. The process is particularly useful for converting cellulose (derived for example from waste-paper, wood or sawdust) or starch to glucose. When cellulose is the starting material the preferred halide is a lithium halide. When starch is the starting material a magnesium halide is preferred.
    Type: Grant
    Filed: January 16, 1986
    Date of Patent: November 29, 1988
    Assignee: Imperial Chemical Industries PLC
    Inventors: Sidney A. Barker, Peter J. Somers
  • Patent number: 4769081
    Abstract: The rate and ease of water dispersibility and/or water solubility of powdered or granular starch materials are substantially enhanced by the incorporation therein of a small but effective amount of a glycoside surfactant ingredient.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: September 6, 1988
    Assignee: A. E. Staley Manufacturing Division of Staley Continental, Inc.
    Inventor: Stephen L. Maher
  • Patent number: 4761186
    Abstract: Aqueous slurries of physically and/or chemically modified starch solids, having high starch solids levels, are purified by means of ultrafiltration. An ultrafiltration system is started by circulating water and then the modified starch slurry is added to raise the starch solids level of the stream fed to the ultrafiltration unit to between 20 and 32% by weight. Water is added to the ultrafiltration system, preferably at the same rate at which water is removed from the system in the permeate. After the desired level of purification is achieved the slurry is concentrated to above 35% and then dried.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: August 2, 1988
    Assignee: General Foods Corporation
    Inventors: Robert E. Schara, Jay H. Katcher
  • Patent number: 4672034
    Abstract: Beet pectin is crosslinked with an oxidizing system containing an oxidizing agent and an enzyme such as peroxidase that uses the oxidizing agent as a substrate. The crosslinked beet pectin is useful as a thickener or gelling agent in food, cosmetic and pharmaceutical products.
    Type: Grant
    Filed: April 24, 1984
    Date of Patent: June 9, 1987
    Assignee: Institut National de la Recherche Agronomique
    Inventors: Franciscus M. Rombouts, Jean-Francois Thibault, Christiane Mercier
  • Patent number: 4587332
    Abstract: The present invention relates to second grade starches and wheat "B" starches in particular which, following conventional modification treatments to produce a correspondingly viscosity-reduced starch, are especially useful in the production of Stein-Hall corrugating adhesives. Corrugated paper board products manufactured using such adhesives have improved properties. In one aspect of the present invention there is provided a modified wheat "B" starch wherein aqueous dispersions of the modified "B" starch have reduced viscosities relative to comparable dispersions of a corresponding unmodified wheat "B" starch, the reduced viscosity not being less than about 12 centipoise grams per cubic centimeter for a specified dispersion.
    Type: Grant
    Filed: February 12, 1985
    Date of Patent: May 6, 1986
    Assignee: Ogilvie Mills Ltd.
    Inventors: Christopher C. Lane, Alexander B. Anonychuk, Peter Unger
  • Patent number: 4566910
    Abstract: 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.
    Type: Grant
    Filed: November 12, 1982
    Date of Patent: January 28, 1986
    Assignee: Grain Processing Corporation
    Inventors: E. Daniel Hubbard, Richard D. Harvey, Mark L. Hogen
  • Patent number: 4566909
    Abstract: Certain yam starches hydrolyzed in the presence of insoluble metal salts formed in situ are surprisingly effective flocculants for destabilizing dilute as well as thick sludge suspensions and are particularly effective when used in the treatment of bituminous tar sands tailings and in phosphate slimes.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: January 28, 1986
    Assignee: Suncor, Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4564004
    Abstract: Cassava starch hydrolyzed in the presence of insoluble metal salts formed in situ is a surprisingly effective flocculant for destabilizing dilute as well as thick sludge suspensions and is particularly effective when used in the treatment of bituminous tar sands tailings and in phosphate slimes.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: January 14, 1986
    Assignee: Suncor, Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4560416
    Abstract: Dasheen starch hydrolyzed in the presence of insoluble metal salts formed in situ is a surprisingly effective flocculant for destabilizing dilute as well as thick sludge suspensions and is particularly effective when used in the treatment of bituminous tar sands tailings and in phosphate slimes.
    Type: Grant
    Filed: November 19, 1984
    Date of Patent: December 24, 1985
    Assignee: Suncor, Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4549909
    Abstract: The present invention relates to a process and the product resulting from pretreating corn starch with calcium or sodium hypochlorite in a controlled manner wherein the starch in aqueous slurry at about 90.degree. to about 115.degree. F. is contacted with from about 0.1 to 6.0% chlorine based on the weight of starch to tenderize the starch which is thereafter filtered, washed, dried and dextrinized in conventional manner to produce dextrins having excellent clarity, luster and stability in aqueous solutions containing at least 30% by weight of solids.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: October 29, 1985
    Assignee: American Maize-Products Company
    Inventors: Raj K. Samuel, Ronald J. Kozlowski, Frank J. Pustek
  • Patent number: 4529608
    Abstract: A process for the preparation of honey powder preserving its natural aroma substances comprises(a) kneading 1 part by weight of honey, 0.8 part by weight of starch, pre-hydrolyzed starch or flour and 0.1-0.3 part by weight of cyclodextrin to yield a homogeneous mixture, subjecting the mixture thus obtained to thermal treatment at 100.degree. C. for 20 minutes, disintegrating the hot product obtained after thermal treatment, drying the product at a temperature of 50.degree.-55.degree. C., for 10-50 hours, adding 0.01-1.0% by weight of hydrophobic colloidal silicic acid or alkali earth stearate and grinding it to a powder; or(b) admixing 1 part by weight of honey with 6 parts by weight of a hot saturated aqueous cyclodextrin solution, freezing the homogeneous solution thus obtained, subjecting the product to lyphilization, adding 0.01-1.0% by weight of hydrophobic colloidal silicic acid or alkali earth stearate to the lyophilized product and grinding it to a powder.
    Type: Grant
    Filed: November 4, 1983
    Date of Patent: July 16, 1985
    Assignee: Chinoin Gyogyszer es Vegyeszeti Termekek Gyara Rt
    Inventors: Jozsef Szejtli, Marta Tardy nee Lengyel
  • Patent number: 4508576
    Abstract: A process for preparing a corn starch product that forms a uniform viscous dispersion when added to boiling water. This process comprises heating a mixture of starch, surfactant and water followed by subjecting the mixture to microwave radiation.
    Type: Grant
    Filed: October 18, 1983
    Date of Patent: April 2, 1985
    Assignee: CPC International Inc.
    Inventor: John P. Mudde
  • Patent number: 4508627
    Abstract: A process for making an improved starch flocculant by heating an aqueous dispersion comprising about 4 to about 12% starch solids, lime and alum until maximum vicosity is obtained, adding a metal salt and finally effecting hydrolysis by additional heating.
    Type: Grant
    Filed: September 15, 1983
    Date of Patent: April 2, 1985
    Assignee: Suncor, Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4491483
    Abstract: A hot-water dispersible starch-surfactant product and process for preparing the same is disclosed wherein a blend of granular starch and at least about 0.25% by starch weight of a surfactant containing a fatty acid moiety are subjected to heat-moisture treatment. Heat-moisture treatment is carried out at from about 10% to about 40% by total weight at a temperature from about 50.degree. C. to about 120.degree. C. Also disclosed are acid stable food thickeners obtained by blending the starch surfactant product with one or more gums in the amount of from about 0.5% to about 10% by total weight.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: January 1, 1985
    Assignee: CPC International Inc.
    Inventors: Wayne E. Dudacek, David A. Kochan, Henry F. Zobel
  • Patent number: 4486458
    Abstract: The presence of a sufficient amount of a calcium complexing agent prevents the gelling of corn steep liquor.
    Type: Grant
    Filed: November 16, 1983
    Date of Patent: December 4, 1984
    Assignee: A. E. Staley Manufacturing Company
    Inventors: Marion M. Bradford, Frank T. Orthoefer, Kenneth N. Wright
  • Patent number: 4465702
    Abstract: A cold-water-swelling granular starch material derived from ungelatinized corn starch and characterized by a cold-water solubility of at least 50% is prepared by subjecting granular corn starch, slurried in selected aqueous alcohols, to conditions of high temperature and pressure. The cold-water-swelling granular starch material derived from chemically unmodified (or minimally modified) ungelatinized corn starch has an ability to set to a sliceable gel without cooking or chilling when blended with an aqueous sugar syrup. That granular starch material is particularly useful in food systems of the type which set or gel upon standing such as pie fillings, jellies, demouldable desserts and puddings.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: August 14, 1984
    Assignee: A. E. Staley Manufacturing Company
    Inventors: James E. Eastman, Carl O. Moore
  • Patent number: 4428972
    Abstract: A thickener is prepared comprising water and a waxy starch from a selected plant of a wxsu2 genotype, the sol of which starch exhibits superior resistance to breakdown on storage at low temperatures. The starch may optionally be modified. The thickener, which preferably employs a starch extracted from maize, is particularly useful for food applications.
    Type: Grant
    Filed: October 23, 1981
    Date of Patent: January 31, 1984
    Assignee: National Starch and Chemical Corporation
    Inventors: Otto B. Wurzburg, Virgil L. Fergason
  • Patent number: 4368212
    Abstract: A bland-tasting starch is prepared by stirring a starch having a distinct cereal or root taste in aqueous slurry form with an acid at about pH 3-5 for at least about 25 minutes, adding an alkaline earth metal oxide to a pH of 5.5 to 8 and stirring, and thereafter filtering the slurry and drying the starch. In a preferred aspect the acid is sulfuric acid, the oxide is calcium or magnesium oxide and the starch is waxy maize. When the starch is dried by drum-drying, a pregelatinized starch is obtained. The resulting starch will not adversely affect the taste of foodstuffs to which it is added.
    Type: Grant
    Filed: December 16, 1981
    Date of Patent: January 11, 1983
    Assignee: National Starch and Chemical Corporation
    Inventor: Erwin Heckman
  • Patent number: 4330409
    Abstract: Hydrolyzed wheat, corn, and potato starches are effective flocculants in destabilizing dilute as well as thick sludge suspensions. These starches are equal to, or better than, the synthetic polyacrylamide flocculants in destabilizing sludge suspensions, particularly when used in the treatment of bituminous tar sands tailings.The hydrolyzed wheat starch is especially effective when first contacted with metal salts such as salts containing calcium, aluminum and phosphate ions, and most particularly when first treated with a combination of such salt, formed in situ, and a lower aliphatic alcohol.Among the potato starch flocculants which were found to be generally better than the corn starch flocculants, those containing AlPO.sub.4 were the best. Potato starch flocculants are equally effective on oil-removed and no-oil-removed sludge suspensions.
    Type: Grant
    Filed: May 1, 1980
    Date of Patent: May 18, 1982
    Assignee: Suncor Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4289540
    Abstract: Hydrolyzed wheat, corn, and potato starches are effective flocculants in destabilizing dilute as well as thick sludge suspensions. These starches are equal to, or better than, the synthetic polyacrylamide flocculants in destabilizing sludge suspensions, particularly when used in the treatment of bituminous tar sands tailings.The hydrolyzed wheat starch is especially effective when first contacted with metal salts such as salts containing calcium, aluminum and phosphate ions and most particularly when first treated with a combination of such salts formed in situ, and a lower aliphatic alcohol.Among the potato starch flocculants which were found to be generally better than the corn starch flocculants, those containing AlPO.sub.4 were the best. Potato starch flocculants are equally effective on oil-removed and no-oil-removed sludge suspensions.
    Type: Grant
    Filed: August 17, 1978
    Date of Patent: September 15, 1981
    Assignee: Suncor Inc.
    Inventors: Raymond N. Yong, Amar J. Sethi
  • Patent number: 4280851
    Abstract: A process and apparatus is provided for cooking or gelatinizng a material in an atomized state, so that there is obtained an easily dryable, uniform and finely-sized product. The material which is to be cooked is injected through an atomization aperture in a nozzle assembly to form a relatively finely-sized spray. A heating medium is also injected through an aperture in the nozzle assembly into the spray of atomized material so as to heat the material to a temperature effective to cook or gelatinize the material. An enclosed chamber surrounds the atomization and heating medium injection apertures, and defines a vent aperture positioned to enable the heated spray of material to exit the chamber. The arrangement is such that the elapsed time between passage of the spray of material through the chamber, i.e., from the atomization aperture and through the vent aperture, defines the cooking or gelatinization time of the material.
    Type: Grant
    Filed: December 14, 1979
    Date of Patent: July 28, 1981
    Assignee: General Foods Corporation
    Inventors: Esra Pitchon, Joseph D. O'Rourke, Theodore H. Joseph
  • Patent number: 4229489
    Abstract: A cold-water dispersible, modified starch characterized by forming a gel having a Bloom strength of at least 50 grams is prepared by reacting a tapioca starch with a crosslinking agent to within defined Brabender viscosity limits; converting the crosslinked starch in a sufficient amount to provide the modified starch with gelling properties; and drum-drying the crosslinked and converted starch to obtain the modified starch product. The gelling instant starch thus prepared is particularly useful in food systems of the type which gel upon standing, such as pie filling, jellies, and puddings.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 21, 1980
    Assignee: National Starch and Chemical Corporation
    Inventors: Chung W. Chiu, Morton W. Rutenberg
  • Patent number: 4192900
    Abstract: Uniform starch particles prepared from one or more starches selected from tapioca, corn, waxy maize, potato, sago, arrowroot and cereal; and one or more gelling hydrocolloids selected from sodium alginate, sodium pectate, hydroxypropylcellulose, methylcellulose, methylhydroxypropylcellulose, methylethylcellulose, carrageenan, furcellaran, agar, gelatin, a mixture of xanthan gum and locust bean gum, and curdlan; by adding water, extruding, cutting and drying; useful in preparing retorted or aseptically packaged, tapioca-style pudding and other improved, edible texturized starch products.
    Type: Grant
    Filed: October 12, 1978
    Date of Patent: March 11, 1980
    Assignee: Merck & Co., Inc.
    Inventor: Hsiung Cheng
  • Patent number: 4158574
    Abstract: An amylaceous material having alkaline viscosities in the range of 10 to 20 seconds using a 1.3 g sample and 15 to 20 seconds using a 5.2 g sample and having cold water solubles of between 50% and 98% is made by hydrolysis of starting material such as corn, flour, corn meal, corn grits, corn starch, sorghum flour, sorghum meal and sorghum grits at moistures between 5% and 12%, adjusting the pH of the hydrolyzed amylaceous material to between pH 3 and 6, gelatinizing the pH adjusted hydrolyzed amylaceous material, and removing water from the gelatinized product.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: June 19, 1979
    Assignee: Krause Milling Company
    Inventors: Robert G. Cummisford, Richard J. Wasielewski, Robert K. Krueger
  • Patent number: 4115146
    Abstract: Process for depolymerizing starch by irradiation in which granular starch, whose water content is at the most about 23%, is subjected, in the presence of an acid which is neutralized at the end of the treatment, to a dose of radiation which is a function of the nature and of the quantity of the acid used.
    Type: Grant
    Filed: October 27, 1976
    Date of Patent: September 19, 1978
    Assignees: Commissariat a l'Energie Atomique, Roquette Freres
    Inventors: Louis Saint-Lebe, Gerard Berger, Jean-Pierre Michel, Michel Huchette, Guy Fleche
  • Patent number: 4021260
    Abstract: An improved starch paste which contains from between 5 to 40% by weight of starch and from 0.01 to 5% by weight based on the weight of the starch of a fatty alcohol which has been reacted with from 1 - 20 moles of ethylene oxide.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: May 3, 1977
    Assignee: Nalco Chemical Company
    Inventor: Marla S. Crill