The Selection of Lignin- Degrading Fungus and the Straw Fermentation by Mixed Strains
木质素降解菌的筛选及混合菌发酵降解秸秆的研究

According to PDA plate culture, shake-flask culture and solid-state fermentation with straw, we chose the best strain which has growth advantage and yields high activity lignin-degrading enzymes from 6 common white-rot fungus. In order to degrade and utilize the straw obviously, we used the two-step mixed fermentation by Pteurorus ostreatus and Trichoderma Koningii. Through the different combination ways, we found that H6-T10 can get the best straw degradation results. The lignin degradation rate reached 44.77%, and the cellulose degradation rate was 41.48%. All of this could make preparation for biogas fermentation by stalks.