Selective fractionation and enzymatic hydrolysis of Eucalyptus nitens wood

摘要: Eucalyptus nitens, a fast growing species with remarkable resistance to plagues and ability grow in frosting zones, was employed as raw material for chemical fractionation following selected biorefinery scheme. E. nitens wood samples were assayed composition, subjected consecutive stages of hydrothermal processing (to solubilize the hemicellulosic fraction), organosolv delignification (for obtaining sulfur-free, soluble lignin fragments cellulose-enriched solid phase) swelling. The various fractions from yield composition. Operating under conditions, stage allowed recovery 80.7% initial xylan hydrolysis or hydrolysis–dehydration products. leaving swelling contained 88.3% cellulose, accumulated 90.2% cellulose present native wood. Near total conversion into glucose achieved when swelled substrate enzymatic experiments performed operational conditions.