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US 11,840,718 B2Granted
Processes for producing ethanol
AssigneeNovozymes A/S
InventorsRandy Deinhammer, Suzanne Clark, Mauricio Quiros, John Matthews, Anne Glud Hjulmand, Chee-Leong Soong, Tomoko Matsui, Shinobu Takagi
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Abstract
The present invention relates to processes for producing fermentation products from starch-containing material, wherein a thermostable alpha-amylase and optionally a thermostable protease are present and/or added during liquefaction. The invention also relates to a composition suitable for use in a process of the invention.
Claims20
A process for producing a fermentation product from starch-containing material comprising:
- i) liquefying the starch-containing material at a temperature above the initial gelatinization temperature using:
- an alpha-amylase;
- and
- a protease having at least 95% sequence identity to the amino acid sequence of SEQ ID NO:
- 13;
- ii) saccharifying the liquefied material obtained in step i) using a glucoamylase;
- and
- iii) fermenting the saccharified material obtained in step (ii) using a fermenting organism.
5 more elements
Dependencies are inferred from the claim text.