Solid-state fermentation of sugarcane bagasse with Flammulina velutipes and Trametes versicolor |
| |
Authors: | M Pal A M Calvo M C Terrón A E González |
| |
Affiliation: | (1) CIB-CSIC, Velázquez 144, E-28006 Madrid, Spain;(2) Present address: 266/1 B.B.D. Road, P.O. Hindmotor, 712233 Dt Hooghly, PIN, India |
| |
Abstract: | The mushroom Flammulina velutipes and the white-rot fungus Trametes versicolor were cultivated separately on sugarcane bagasse for 40 days. Trametes versicolor produced laccase and manganese-peroxidase activities, showing a simultaneous degradation of lignin and holocellulose. However, only phenoloxidase activity was found with Flammulina velutipes. A preferential degradation of lignin was detected in F. velutipes, which exhibited a greater reduction in the ratio of weight loss to lignin loss than T. versicolor. A decrease in the syringyl/guaiacyl ratio observed with both fungi indicated the preferential degradation of non-condensed (syringyl-type) lignin units. An increase in the relative abundance of aromatic carboxylic acids suggested that the oxidative transformation of lignin unit side-chains was occurring. This was more noticeable with Flammulina velutipes than with T. versicolor. |
| |
Keywords: | Bagasse CuO-GCMS Flammulina velutipes laccase lignin manganese-peroxidase solid-state fermentation Trametes versicolor |
本文献已被 SpringerLink 等数据库收录! |
|