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A two-stage pretreatment approach to maximise sugar yield and enhance reactive lignin recovery from poplar wood chips.
- Source :
-
Bioresource technology [Bioresour Technol] 2013 Feb; Vol. 130, pp. 570-7. Date of Electronic Publication: 2012 Dec 21. - Publication Year :
- 2013
-
Abstract
- A two-stage pretreatment approach, employing steam followed by organosolv treatment, was assessed for its ability to fractionate and recover most of the hemicellulose, lignin and cellulose components of poplar wood chips. A mild steaming stage was initially used to maximise hemicellulose sugar recovery, with 63% of the original xylan solubilised and recovered after this stage and close to 90% recovered in total. Rather than hindering subsequent organosolv delignification, the prior steam treatment enhanced lignin solubilisation with more than 66% of the original lignin removed after the two-stage pretreatment. The extracted lignin contained at least equal or greater amounts of functional groups as compared to the lignin solubilised after a single-stage organosolv pretreatment. More than 98% of the original cellulose was recovered after the two-stage pretreatment and 88% of the cellulose could be hydrolysed to glucose at enzyme loading of 5FPU/g cellulose after 72h.<br /> (Copyright © 2012 Elsevier Ltd. All rights reserved.)
Details
- Language :
- English
- ISSN :
- 1873-2976
- Volume :
- 130
- Database :
- MEDLINE
- Journal :
- Bioresource technology
- Publication Type :
- Academic Journal
- Accession number :
- 23334012
- Full Text :
- https://doi.org/10.1016/j.biortech.2012.12.093