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US 10,961,550 B2Granted
Enzymatic process for production of modified hop products
AssigneeKalamazoo Holdings, Inc.
InventorsKatie Whalen, Donald Richard Berdahl, Brian Patrick Buffin, Matthew Blake Jones, Katrina Williams
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Abstract
The present invention relates to a process for producing a beer bittering agent via enzyme catalyzed bioconversion of hop-derived isoalpha acids to dihydro-(rho)-isoalpha acids.
Claims17
A process for the preparation of dihydro-(rho)-isoalpha acids, comprising treating isoalpha acids with a ketoreductase enzyme or a microorganism expressing a gene that encodes the ketoreductase, wherein the ketoreductase enzyme comprises an amino acid sequence selected from the group consisting of SEQ ID NO:
- 4 and SEQ ID NO:
- 150, or wherein the ketoreductase enzyme or microorganism expressing a gene which encodes the ketoreductase is at least 95% homologous to the ketoreductase enzyme of SEQ ID NO:
- 4 or SEQ ID NO:
- 150.
1 more element
Dependencies are inferred from the claim text.