US Patent 7374922 Starch debranching enzymes

Patent 7374922 was granted and assigned to Novozymes A/S on May, 2008 by the United States Patent and Trademark Office.

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Is a

Patent

Patent attributes

Current Assignee

Novozymes A/S

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

73749220

Patent Inventor Names

Allan Svendsen0

Henrik Bisgard-Frantzen0

Date of Patent

May 20, 2008

Patent Application Number

103757200

Date Filed

February 26, 2003

Patent Primary Examiner

‌

Rebecca E. Prouty

Patent abstract

The invention relates to a genetically engineered variant of a parent starch debranching enzyme, i.e. a pullulanase or an isamylase, the enzyme variant having an improved thermostability at a pH in the range of 4-6 compared to the parent enzyme and/or an increased activity towards amylopectin and/or glycogen compared to the parent enzyme, to methods for producing such starch debranching enzyme variants with improved thermostability and/or altered substrate specificity, and to a method for converting starch to one or more sugars using at least one such enzyme variant.