Xylanases enzymes from the group of pentosanases are able to unlock the various, present in the supporting structure of plant cell walls substances ( xylans ).

They occur naturally in bacteria, fungi, yeasts, protozoa, algae, xylophagous insects, snails and crabs, but not in vertebrates ( this digest these substances by their intestinal flora ) ago. For industrial use Xylasen are often genetically from fungi (eg Aspergillus and Trichodermaarten ) and bacteria produced.


Xylanases are the families 10 and 11 in the classification of glycosidases by Henrissat.


They are used in starch processing (eg in bakeries to improve the dough properties ), as feed additives (eg poultry farming ) and in the paper industry. Are known in this environment allergies to xylanases.