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.

Abstract: The invention relates to a process for producing a fermentation broth by culturing a microorganism.

Abstract: The present invention relates to a host cell which is capable of producing a dicarboxylic acid and which comprises at least one genetic modification in its genome resulting in the deficiency of at least one enzymatic step catalysing the oxidation of a cofactor. The invention also relates to a process for producing a dicarboxylic acid, which method comprises fermenting such a host cell in a suitable fermentation medium and producing the dicarboxylic acid.

Abstract: The present invention relates to a host cell which is capable of producing a dicarboxylic acid and which comprises at least one genetic modification in its genome resulting in the deficiency of at least one enzymatic step catalysing the oxidation of a cofactor. The invention also relates to a process for producing a dicarboxylic acid, which method comprises fermenting such a host cell in a suitable fermentation medium and producing the dicarboxylic acid.