title: Solid-state fermentation of sugarcane bagasse with Flammulina velutipes and Trametes versicolor.
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.
authors.affiliation: CIB-CSIC, Velázquez 144, E-28006, Madrid, Spain.
authors.forename: M
authors.initials: M
authors.lastname: Pal
authors.forename: A M
authors.initials: AM
authors.lastname: Calvo
authors.forename: M C
authors.initials: MC
authors.lastname: Terrón
authors.forename: A E
authors.initials: AE
authors.lastname: González