RT info:eu-repo/semantics/article
T1 Hydrothermal fractionation of woody biomass: lignin effect over sugars recovery
A1 Yedro, Florencia Micaela
A1 Cantero Sposetti, Danilo Alberto
A1 Pascual, Marcos
A1 García Serna, Juan
A1 Cocero Alonso, María José
AB Subcritical water was employed to fractionate woody biomass into carbohydrates and lignin. Nine urban trees species (hardwood and softwood) from Spain were studied. The experiments were carried out in a semi-continuous reactor at 250 °C for 64 min. The hemicellulose and cellulose recovery yields were between 30% wt. and 80% wt. while the lignin content in the solid product ranged between 32% wt. and 92% wt. It was observed that an increment of solubilized lignin disfavored the hydrolysis of hemicelluloses. It was determined that the maximum extraction of hemicellulose was achieved at 20 min of solid reaction time while the extraction of celluloses not exhibited a maximum value. The hydrolysis of hemicellulose and cellulose would be governed by the hydrolysis kinetic and the polymers accessibility. In addition, the extraction of hemicellulose was negatively affected by the lignin content in the raw material while cellulose hydrolysis was not affected by this parameter.
SN 0960-8524
YR 2015
FD 2015
LK http://uvadoc.uva.es/handle/10324/28687
UL http://uvadoc.uva.es/handle/10324/28687
LA eng
NO Bioresource Technology. 191 (2015) 124-132
NO Producción Científica
DS UVaDOC
RD 18-nov-2024