Polyoxirane (polyoxyethylene) and some of its derivatives stimulate the lig
nin peroxidase activity in shaken Phaneroch oe te chrysosporium cultures. T
he majority of polyoxirane remains in the culture fluid while a minor part
diffuses into the fungal pellets where it is distributed between cell solid
s and cell liquid. The lower the polyoxirane content in the cell liquid, th
e higher the lignin peroxidase activity of the P. chrysosporium culture.