Alpha-amylase blends and methods for using said blends

Details Alpha-amylase blends and methods for using said blends Alpha-amylase blends and methods for using said blends

C - Chemistry, Metallurgy

12

N

C12N 9/28 (2006.01) C12P 19/02 (2006.01) C12P 19/14 (2006.01)

Patent

CA 2738447

The present invention relates to an alpha-amylase blend, including a B. stearothermophilus alpha-amylase (AmyS) wherein the amino acid at position S242 is substituted and a B. licheniformis alpha-amylase The invention also relates to processes using the alpha-amylase blends for starch liquefaction and saccharification, ethanol production, and sweetener production.

L'invention concerne un mélange d'alpha-amylases comprenant: de la B. stearothermophilus alpha-amylase (AmyS) dans laquelle l'acide aminé en position S242 a été substitué; et de la B. licheniformis alpha-amylase. L'invention concerne également les processus d'utilisation de mélanges d'alpha-amylases à des fins: de liquéfaction et de saccharification de l'amidon, de production d'éthanol, et de production d'édulcorants.

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