The invention relates to newly identified polynucleotide sequences comprising a gene that encodes a novel oxidoreductase isolated from Aspergillus niger. The invention features the full length nucleotide sequence of the novel gene, the cDNA sequence comprising the full length coding sequence of the novel oxidoreductase as well as the amino acid sequence of the full-length functional protein and functional equivalents thereof. The invention also relates to methods of using these enzymes in baking and in dairy applications. Also included in the invention are cells transformed with a polynucleotide according to the invention and cells wherein a oxidoreductase according to the invention is genetically modified to enhance or reduce its activity and/or level of expression.