University of the Free State, Sappi Biotech. Lab., Dept. of Microbiology, Biochemistry & Food Science, Bloemfontein, South Africa

Catalyst potential of laccase-mediator systems and transition metal polyoxometalates in oxygen bleaching of pulp Gotfried Kandioller and Lew Christov Evaluation of starch hydrolysing enzymes to improve drainage of recycled pulp H. Jansen van Vuuren and Francois Wolfaardt Synergistic interactions of purified xylanases on bagasse pulp hemicellulose Sadvhir Bissoon, Suren Singh and Lew Christov Use of industrial waste water for xylanase production by two Aspergillus strains Zawadi Chipeta, James du Preez and Lew Christov