| Titre : | Pretreatment of miscanthus x giganteus using the ethanol organosolv process for ethanol production (2010) |
| Auteurs : | Nicolas Brosse, Auteur ; Sannigrahi, Poulomi, Auteur ; Arthur Ragauskas, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 48 N° 18, Septembre 2009) |
| Article en page(s) : | pp. 8328–8334 |
| Note générale : | Chemical engineering |
| Langues : | Anglais |
| Tags : | Miscanthus x giganteus Aqueous-ethanol organosolv treatment |
| Résumé : | A two-step procedure involving a dilute-acid presoaking step and an aqueous-ethanol organosolv treatment has been evaluated and optimized for the conversion of Miscanthus x giganteus (MxG). This process allowed for the efficient fractionation of the raw material into a cellulose-rich residue, an ethanol organosolv lignin fraction, and a water-soluble fraction mainly containing hemicellulose sugars. It was found that the presoaking step not only allowed a better recovery of xylans, but also enhanced the dissolution of lignin in the aqueous ethanol and the digestibility of the remaining cellulose by enzymes. The optimized conditions yielded a solid residue containing about 95% of the initial glucans, from which 98% was recovered after 48 h of enzymatic hydrolysis. In addition, 71% of the lignin was recovered as ethanol organosolv lignin (EOL), and the recovery of the xylans was equivalent to 73% of the xylose present in the raw Miscanthus. |
| En ligne : | http://pubs.acs.org/doi/abs/10.1021/ie9006672 |
