Studies on the degradation of corn straw by combined bacterial cultures.

In this study, the combined bacteria (CB) were constructed by Phanerochaete chrysosporium, Trametes versicolor and Pleurotus ostreatus, which have a good ability to degrade lignocellulose, and the optimum degradation conditions and internal degradation mechanism of combined bacteria were investigated. The results showed that under conditions of temperature (32 °C), pH (3.5), solid-liquid ratio (10%), culture time (20 d), the degradation rates of lignin, cellulose and hemicellulose were 43.36%, 31.29%, 48.36%, respectively. The construction of combined bacteria significantly enhances the degradation ability of lignocellulose, and showed good correlation and coordination mechanism.