Patents by Inventor Gin C. Liaw
Gin C. Liaw has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6648978Abstract: An improved corn wet milling process is disclosed in which a first stream comprising water, starch, and protein (e.g., gluten) is generated by separating fiber from wet milled de-germed corn particles (e.g. fiber separation step). Membrane filtration (e.g. starch-protein stream thickening) is performed on the first stream, producing a first retentate and a first aqueous permeate. The first retentate (e.g. thickened starch-protein stream) is separated into a second stream and a third stream (e.g. primary starch separation step). The second stream comprises water and a majority of the starch present in the first retentate, and the third stream comprises water and a majority of the protein (e.g., gluten) present in the first retentate. This process provides an economical means of recovering a higher percentage of the available cornstarch for inclusion in high value products.Type: GrantFiled: October 15, 2001Date of Patent: November 18, 2003Assignee: A. E. Staley Manufacturing Co.Inventors: Gin C. Liaw, Munir Cheryan, Roy O. Elmore
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Publication number: 20030070673Abstract: An improved corn wet milling process is disclosed in which a first stream comprising water, starch, and protein (e.g., gluten) is generated by separating fiber from wet milled de-germed corn particles (e.g. fiber separation step). Membrane filtration (e.g. starch-protein stream thickening) is performed on the first stream, producing a first retentate and a first aqueous permeate. The first retentate (e.g. thickened starch-protein stream) is separated into a second stream and a third stream (e.g. primary starch separation step). The second stream comprises water and a majority of the starch present in the first retentate, and the third stream comprises water and a majority of the protein (e.g., gluten) present in the first retentate. This process provides an economical means of recovering a higher percentage of the available cornstarch for inclusion in high value products.Type: ApplicationFiled: October 15, 2001Publication date: April 17, 2003Applicant: A. E. Staley Manufacturing Co.Inventors: Gin C. Liaw, Munir Cheryan, Roy O. Elmore
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Publication number: 20020164723Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and re-circulation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step.Type: ApplicationFiled: July 18, 2001Publication date: November 7, 2002Applicant: Novozymes A/SInventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne Ronfeldt Nielsen, Rudy Illum Nielsen
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Patent number: 6303346Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and re-circulation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step. In another specific aspect, the invention provides a method of producing a saccharide preparation, which method comprises an enzymatic saccharification step, and the subsequent steps of one or more high temperature membrane separation steps and re-circulation of the saccharification enzyme.Type: GrantFiled: August 4, 2000Date of Patent: October 16, 2001Assignee: Novozymes A/SInventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne Rønfeldt Nielsen, Ruby Illum Nielsen
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Patent number: 6136571Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and re-circulation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step. In another specific aspect, the invention provides a method of producing a saccharide preparation, which method comprises an enzymatic saccharification step, and the subsequent steps of one or more high temperature membrane separation steps and re-circulation of the saccharification enzyme.Type: GrantFiled: February 10, 2000Date of Patent: October 24, 2000Assignee: Novo Nordisk A/SInventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne R.o slashed.nfeldt Nielsen, Ruby Illum Nielsen
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Patent number: 6129788Abstract: The present invention relates to a method for the production of saccharide preparations, i.e., syrups, by saccharifying a liquefied starch solution, which method comprises a saccharification step during which step one or more enzymatic saccharification stages takes place, and the subsequent steps of one or more high temperature membrane separation steps, and recirculation of the saccharification enzyme, in which method the membrane separation steps are carried out as an integral part of the saccharification step.Type: GrantFiled: November 23, 1998Date of Patent: October 10, 2000Assignee: Novo Nordisk A/SInventors: Gin C. Liaw, Sven Pedersen, Hanne Vang Hendriksen, Allan Svendsen, Bjarne R.o slashed.nfeldt Nielsen, Ruby Illum Nielsen
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Patent number: 5968585Abstract: An improved corn wet milling process is disclosed. In a process in which corn kernels are steeped in an aqueous solution and are milled to facilitate the separation of the components thereof, in which starch from the corn is separated from gluten, and in which at least one aqueous gluten-containing stream is generated, the improvement comprises membrane filtration of an aqueous gluten-containing stream, producing a gluten-enriched retentate, and removing water from the gluten-enriched retentate, thereby producing a substantially dry gluten product. This improved process provides an economical means of recovering a higher percentage of the available protein for inclusion in high value products.Type: GrantFiled: February 11, 1997Date of Patent: October 19, 1999Assignee: A.E. Staley Manufacturing CompanyInventors: Gin C. Liaw, Munir Cheryan
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Patent number: 5773076Abstract: An improved corn wet milling process is disclosed, in which gluten is recovered from steepwater by membrane filtration and is incorporated in a corn gluten meal product. The process can include the steps of steeping corn kernels in an aqueous solution, thereby producing steep water which contains gluten protein; membrane filtration of the steep water, thereby producing a retentate which has a higher concentration of the gluten protein than the original steep water; reducing the water content of the retentate; and incorporating the remaining retentate into a corn gluten meal product.Type: GrantFiled: February 1, 1996Date of Patent: June 30, 1998Assignee: A.E. Staley Manufacturing CompanyInventors: Gin C. Liaw, Eric H. Lutz, Munir Cheryan
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Patent number: 5047088Abstract: A method for producing anhydrous crystalline fructose by crystallizing from solution is provided. A highly supersaturated aqueous solution of fructose is added to a heel of crystalline fructose and dry seed. The temperature of the solution is then lowered to crystallize fructose from the solution to form a massecuite. The massecuite is divided into a product portion and a heel portion, the product portion being treated to isolated crystalline fructose which is then classified into product cuts on the basis of particle size of the fructose crystals, each product cut having a substantially typical particle size distribution.Type: GrantFiled: June 30, 1989Date of Patent: September 10, 1991Assignee: A. E. Staley Manufacturing CompanyInventors: Gin C. Liaw, James M. Gaddy, Frank M. Mallee, Steven J. Reust
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Patent number: 4366060Abstract: Large-scale apparatus and process for chromatographic separation of fructose/dextrose sugar solutions employing large diameter beds of a strongly cationic salt of an ion exchange resin. The cationic ion exchange resin is densely and uniformly packed in a separation column by means of a resin loading method which includes washing the resin with a salt selected from the group of calcium, barium, strontium or silver salts of the resin. The shrunken resin is then placed in the column to completely fill the column. After sealing the column, excess salt is washed away to thereby expand the resin inside the confined separation column chamber.The uniformly dense packing of the resin in the separation column chamber eliminates the need for mechanical baffles which were formerly required to insure regular and uniform flow throughout the entire cross sectional area of the separation columns.Type: GrantFiled: December 26, 1978Date of Patent: December 28, 1982Assignee: A. E. Staley Manufacturing CompanyInventors: Roger S. Leiser, Gin C. Liaw