The present invention relates to a process for the production of a technical enzyme composition with low viscosity, a genetically modified filamentous fungus cell suitable for production of the technical enzyme composition, the use of such a genetically modified filamentous fungus cell for the production of the technical enzyme composition with low viscosity and a technical enzyme composition with low viscosity produced by such a process.

The present invention relates to an isolated polypeptide having xylanase activity, selected from the group consisting of: a) a polypeptide comprising an amino acid sequence having at least 87% identity with SEQ ID NO: 1; b) a polypeptide encoded by a polynucleotide having at least 87% identity with SEQ ID NO:2; or c) a fragment of a polypeptide of a) or b) which fragment has xylanase activity.