Abstract: Disclosed herein is a yeast strain capable of fermenting high maltose syrups into ethanol in the presence of glucose. In commercially important fuel ethanol yeast strains, the presence of glucose prevents robust maltose fermentation. This invention causes enhanced co-fermentation of maltose and glucose in strains otherwise identical to commercial fuel ethanol yeast strains.
Type:
Grant
Filed:
July 19, 2019
Date of Patent:
January 21, 2025
Assignee:
Xylogenics, Inc.
Inventors:
Mark Goebl, Joshua Heyen, Nadaraj Palaniappan, Ross Cocklin, Kathryn Houin, Matthew Kelker
Abstract: Disclosed herein are materials and methods for the production of high concentrations of ethanol from plant starch material broken down into disaccharide and trisaccharide sugars such as maltose, isomaltose, and maltotriose from uncooked starch. Herein is also described use of a yeast strain capable of fermenting high maltose syrups into ethanol without the need to convert disaccharides or trisaccharides into glucose using exogenous glucoamylases.
Type:
Grant
Filed:
December 28, 2018
Date of Patent:
August 3, 2021
Assignee:
Xylogenics, Inc.
Inventors:
Joshua W. Heyen, Mark G. Goebl, Kathryn A. Houin, Matthew S. Kelker, Nadaraj Palaniappan
Abstract: Disclosed herein are materials and methods for the production of high concentrations of ethanol from plant starch material broken down into disaccharide and trisaccharide sugars such as maltose, isomaltose, and maltotriose from uncooked starch. Herein is also described use of a yeast strain capable of fermenting high maltose syrups into ethanol without the need to convert disaccharides or trisaccharides into glucose using exogenous glucoamylases.
Type:
Application
Filed:
December 28, 2018
Publication date:
July 4, 2019
Applicant:
Xylogenics, Inc.
Inventors:
Joshua W. Heyen, Mark G. Goebl, Kathryn A. Houin, Matthew S. Kelker, Nadaraj Palaniappan