Alginate beads, polyurethane foam, nylon sponge and stainless steel sponge were tested as
carrier materials for the white-rot fungus Trametes hirsuta for laccase production under
submerged fermentation conditions. Stainless steel sponge was the best carrier material
leading to the highest laccase activities of up to 800 U/l after 8 days of cultivation. These
values are higher than those reported to date operating with inert supports and without
inducer addition. In a 1-l bioreactor containing T. hirsuta immobilised on stainless steel …