公开(公告)号：US20220380813A1

公开(公告)日：2022-12-01

申请号：US17774361

申请日：2020-11-09

Applicant: DSM IP ASSETS B.V.

Inventor： Ingrid Maria VUGT-VAN LUTZ ,  Hans Marinus Charles Johannes DE BRUIJN ,  Rolf POLDERMANS

IPC: C12P7/06 ,  C12N1/18 ,  C12N15/52

Abstract: The invention relates to a process for the production of ethanol, the process comprising fermenting of a carbon source composition with a recombinant yeast,
wherein the carbon source composition comprises at least glucose and arabinose; and wherein the recombinant yeast comprises arabinose isomerase activity, ribulokinase activity, ribulose phosphate epimerase activity, glycerol uptake activity and glycerol conversion capacity; and wherein the recombinant yeast further comprises a genetic modification leading to the reduction, downregulation, inhibition and/or elimination of the activity of a homologous protein with glycerol-efflux activity; and wherein each of the glucose and the arabinose is converted into ethanol. In addition, the invention relates to a recombinant yeast that can be used in such a process.