Fermentation product production processes

  • US 7,820,419 B2
  • Filed: 02/07/2006
  • Issued: 10/26/2010
  • Est. Priority Date: 02/07/2005
  • Status: Active Grant
First Claim
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1. A process for producing an alcohol from starch-containing material, comprising(a) liquefying said starch-containing material with an alpha-amylase;

  • (b) treating the liquefied mash from step (a) with a protease before initiating step (c);

    (c) saccharifying in the presence of a carbohydrate-source generating enzyme;

    (d) fermenting in the presence of a fermenting organism to produce the alcohol.

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