The invention relates to a xylanase originating from a Bacillus strain.
This xylanase is active over a wide range of acid and basic pH. The
invention also relates to new strains of microorganisms producing this
xylanase and to methods for preparing this xylanase. The invention also
relates to a DNA molecule and to an expression vector or an integration
vector containing this DNA molecule. The invention also relates to uses
of the latter and to compositions containing it.