# US 7,608,292 B2 · Method of processing soy protein > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,608,292 B2 - Document ID: US7608292B2 - Status: Granted - Kind: B2 - Application number: 10/684,748 - Filed: 2003-10-14 - Published: 2005-04-14 - Granted: 2009-10-27 - Earliest claimed: 2003-10-14 - Assignees: Land O'Lakes Purina Feed LLC - Inventors: Bill L. Miller; Madhu Kakade - Web page: https://patentgrep.com/patent/US7608292B2 ## CPC - A23K 50/60: for weanlings - A23J 3/16: from soybean - A23K 20/147: Polymeric derivatives, e.g. peptides or proteins - A23L 11/07: {Soya beans, e.g. oil-extracted soya bean flakes (A23L11/30 takes precedence)} - A23V 2002/00: Food compositions, function of food ingredients or processes for food or foodstuffs - A23K: FODDER - A23J: PROTEIN COMPOSITIONS FOR FOODSTUFFS; WORKING-UP PROTEINS FOR FOODSTUFFS; PHOSPHATIDE COMPOSITIONS FOR FOODSTUFFS - A23L: FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF (preservation thereof A23B) - A23V: INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION ## Abstract A method of processing a proteinaceous material, the method entails (1) blending the proteinaceous material with alcohol and a reducing agent and (2) maintaining a combination having the proteinaceous material and the reducing agent at a greater than ambient temperature for a holding period of at least about five minutes to form a proteinaceous product. ## Claims ### Claim 1 A method of processing a proteinaceous material the method comprising: blending the proteinaceous material with alcohol and a reducing agent to form a mixture wherein the percentage of alcohol in the mixture is in the range of between about 5 to about 20 percent by weight; maintaining the mixture at a temperature greater than 90° C. and a pressure greater than 10 psig for a holding period at least about five minutes to form a proteinaceous product; and removing all or essentially all of the alcohol by venting the pressure on the proteinaceous product, the proteinaceous product with enhanced solubility and preserved color characteristics. ### Claim 2 (depends on 1) The method of claim 1 wherein, the alcohol is present in the mixture during the holding period. ### Claim 3 The method of claim wherein the proteinaceous material comprises oilseed material that comprises oilseed protein. ### Claim 4 (depends on 3) The method of claim 3 wherein the oilseed material comprises soy protein. ### Claim 5 (depends on 1) The method of claim 1 wherein the reducing agent comprises a source of SO2. ### Claim 6 (depends on 1) The method of claim 1 wherein the reducing agent comprises an alkali metal sulfite, an alkali metal bisulfite, an alkali metal meta bisulfite, an alkali metal pyrosulfite, or any mixture of any of these. ### Claim 7 (depends on 1) The method of claim 1 wherein the reducing agent comprises sulfur dioxide, sodium sulfite, sodium bisulfite, sodium meta bisulfite, sodium pyrosulfite, potassium sulfite, potassium bisulfite, potassium meta bisulfite, potassium pyrosulfite, or any mixture of any of these. ### Claim 8 (depends on 1) The method of claim 1 wherein the alcohol is infinitely miscible in water. ### Claim 9 (depends on 1) The method of claim 1 wherein the alcohol comprises methanol, ethanol, propanol, or any mixture of any of these. ### Claim 10 (depends on 1) The method of claim 1 wherein the temperature ranges from about 100° C. to about 121° C. ### Claim 11 (depends on 1) The method of claim 1 wherein the holding period is at least about ten minutes. ### Claim 12 (depends on 11) The method of claim 11 wherein the holding period ranges from about ten to about thirty minutes. ### Claim 13 (depends on 1) The method of claim 1, the method further comprising maintaining the combination comprising the proteinaceous material and the reducing agent at super-atmospheric pressure during the holding period. ### Claim 14 (depends on 13) The method of claim 13 wherein the super-atmospheric pressure ranges from about ten pounds per square inch gauge to about thirty pounds per square inch gauge. ### Claim 15 (depends on 1) A method of forming an animal feed, the method comprising combining the proteinaceous product of claim 1 with an animal feed component. ### Claim 16 A method of processing a proteinaceous material the method comprising: blending the proteinaceous material with a reducing agent to form a mixture; maintaining the mixture at a temperature greater than 90° C. and a pressure greater than 10 psig in an autoclave for a holding period to form a proteinaceous product; and removing all or substantially all of any alcohol present in the proteinaceous product by venting the pressure on the proteinaceous product, the proteinaceous product having enhanced solubility and preserved color characteristics. ### Claim 17 (depends on 16) The method of claim 16 wherein the proteinaceous material comprises oilseed material that comprises oilseed protein. ### Claim 18 (depends on 17) The method of claim 17 wherein the oilseed material comprises soy protein. ### Claim 19 (depends on 16) The method of claim 16 wherein the reducing agent comprises a source of SO2. ### Claim 20 (depends on 16) The method of claim 16 wherein the reducing agent comprises an alkali metal sulfite, an alkali metal bisulfite, an alkali metal meta bisulfite, an alkali metal pyrosulfite, or any mixture of any of these. ### Claim 21 (depends on 16) The method of claim 16 wherein the reducing agent comprises sulfur dioxide, sodium sulfite, sodium bisulfite, sodium meta bisulfite, sodium pyrosulfite, potassium sulfite, potassium bisulfite, potassium meta bisulfite, potassium pyrosulfite, or any mixture of any of these. ### Claim 22 (depends on 16) The method of claim 16 wherein the greater than ambient temperature ranges from about 100° C. to about 121° C. ### Claim 23 (depends on 16) The method of claim 16 wherein the holding period lasts at least about five minutes. ### Claim 24 (depends on 16) The method of claim 16 wherein the holding period lasts at least about ten minutes. ### Claim 25 (depends on 16) The method of claim 16 wherein the holding period ranges from about ten minutes to about thirty minutes. ### Claim 26 (depends on 16) The method of claim 16 wherein the mixture further comprises an alcohol. ### Claim 27 (depends on 26) The method of claim 26 wherein the alcohol is infinitely miscible in water. ### Claim 28 (depends on 26) The method of claim 26 wherein the alcohol comprises methanol, ethanol, propanol, or any mixture of any of these. ### Claim 29 (depends on 16) A method of forming an animal feed, the method comprising combining the proteinaceous product of claim 16 with an animal feed component. ### Claim 30 (depends on 20, 29) The method of claim 29 wherein the mixture of claim 20 further comprises alcohol and the method further comprises removing all or essentially all of any incorporated alcohol from the proteinaceous product. ### Claim 31 (depends on 1) The method of claim 1 wherein the mixture further comprises water. ### Claim 32 (depends on 1) The method of claim 1 wherein the proteinaceous material and reducing agent are combined with an aqueous solution to form the mixture, the aqueous solution comprising the alcohol and water. ### Claim 33 (depends on 16) The method of claim 16 wherein the mixture further comprises water.