n nature, lignin degradation occurs during the rot of biomass. Several saprophytes, especially from the fungi kingdom, are able to break down lignin. Their strategies for lignin utilization are based on certain enzymes, which catalyses the depolymerisation of the lignin molecule. The most prominent lignin degrading enzymes belong to the laccase family. Laccases catalyse a four electron transfer from a substrate over a mediator to oxygen which is reduced to water.