US 12,247,241 B2
Processes for reducing lactic acid in a biofuel fermentation system and processes for producing a fermentation product
Armindo Ribeiro Gaspar, Rolesville, NC (US); Victor Gabriel Guadalupe Medina, Araucaria Parana (BR); Xin Li, Raleigh, NC (US); Kelly Cristina Leite Mulder, Araucaria Parana (BR); and Angela Shows, Raleigh, NC (US)
Assigned to Novozymes A/S, Bagsvaerd (DK)
Filed by Novozymes A/S, Bagsvaerd (DK)
Filed on Sep. 12, 2023, as Appl. No. 18/465,305.
Application 18/465,305 is a division of application No. 17/713,797, filed on Apr. 5, 2022, granted, now 11,795,481.
Application 17/713,797 is a division of application No. 16/757,459, granted, now 11,326,187, issued on May 10, 2022, previously published as PCT/US2018/056656, filed on Oct. 19, 2018.
Claims priority of provisional application 62/575,852, filed on Oct. 23, 2017.
Prior Publication US 2024/0035051 A1, Feb. 1, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C12P 7/06 (2006.01); C12N 9/02 (2006.01); C12P 1/02 (2006.01); C12P 19/14 (2006.01)
CPC C12P 7/06 (2013.01) [C12N 9/0083 (2013.01); C12P 1/02 (2013.01); C12P 19/14 (2013.01); C12Y 114/99 (2013.01); C12Y 302/01001 (2013.01)] 17 Claims
 
1. A process for reducing and/or preventing an increase in lactic acid levels in a biofuel fermentation system, the process comprising introducing a lytic polysaccharide monooxygenase (LPMO) polypeptide or an enzyme composition comprising the LPMO polypeptide into the biofuel fermentation system, wherein the biofuel fermentation system comprises one or more fermentation vessels, pipes and/or components, and wherein the LPMO polypeptide or enzyme composition comprising the LPMO polypeptide is added at a concentration sufficient to reduce and/or prevent an increase in lactic acid levels in the biofuel fermentation system by reducing and/or preventing bacterial contamination during fermentation.