Breeding of efficient lignin degradation bacteria by UV induced mutagenesis

The degradation of lignin is the constraint for the utilization of lignin.White-rot fungus was cultivated by UV mutagenesis and the efficient lignin degradation bacteria was obtained,its LiP enzyme activity is 600 IU/mL,its MnP enzyme activity is 1 600 IU/mL.Experiment with the UV mutagenesis strains S for lignin degradation was carried out and the lignin degradation rate reached 48.4%,which is 13.6% above the lignin degradation rate(42.6%) by the strains are without UV mutagenesis.