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Last Updated: March 29, 2024

Claims for Patent: 9,057,087


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Summary for Patent: 9,057,087
Title:Processes of producing a fermentation product
Abstract: The invention relates to a process of process of producing a fermentation product, comprising: liquefying a starch-containing material to dextrins with an alpha-amylase in the presence of an asparaginase and/or an amino acid oxidase; saccharifying the dextrins to a sugar with a glucoamylase; and fermenting the sugar using a fermenting organism.
Inventor(s): Prata; Rogerio (Chapel Hill, NC), Robey; Alison (Sioux Falls, SD), Forman; Todd (Raleigh, NC), Clark; Suzanne (Youngsville, NC), Bordin; Eder Manzini (Curitiba, BR)
Assignee: NOVOZYMES NORTH AMERICA, INC. (Franklinton, NC)
Application Number:13/988,103
Patent Claims:1. A process of producing a fermentation product, comprising: (a) liquefying a starch-containing material to a dextrin with an alpha-amylase in the presence of an asparaginase or a mixture of an amino acid oxidase, an arginase, and an asparaginase; (b) saccharifying the dextrin to a sugar with a saccharifying enzyme; and (c) fermenting the sugar using a fermenting organism to produce the fermentation product.

2. The process of claim 1, wherein the starch-containing material is liquefied to the dextrin in the presence of an asparaginase.

3. The process of claim 2, wherein the asparaginase is an enzyme of EC 3.5.1.1.

4. The process of claim 2, wherein the asparaginase is an enzyme of EC 3.5.1.38.

5. A process of producing a fermentation product, comprising: (a) treating a starch-containing material with an asparaginase or a mixture of an amino acid oxidase, an arginase, and an asparaginase; (b) liquefying the treated starch-containing material to a dextrin with an alpha-amylase; (c) saccharifying the dextrin to a sugar with a saccharifying enzyme; and (d) fermenting the sugar using a fermenting organism to produce the fermentation product.

6. The process of claim 5, wherein the starch-containing material is treated with an asparaginase at a temperature of 20-75.degree. C.

7. The process of claim 5, wherein the asparaginase is an enzyme of EC 3.5.1.1.

8. The process of claim 5, wherein the asparaginase is an enzyme of EC 3.5.1.38.

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