EC 3.2.1.8 From T. longibrachiatum. Electrophoretically homogeneous, pI 9.0). In 3.2 M ammonium sulphate. Specific activity: 132 U/mg (40°C, pH 6.0, wheat flour arabinoxylan as substrate). Contaminants: α-L-arabinofuranosidase, ?-D-xylopyranosidase and ?-D-mannanase < 0.001%. Stable at 4°C for > 4 years