A two-stage pretreatment approach to maximise sugar yield and enhance reactive lignin recovery from poplar wood chips.
Identifieur interne : 002812 ( Main/Exploration ); précédent : 002811; suivant : 002813A two-stage pretreatment approach to maximise sugar yield and enhance reactive lignin recovery from poplar wood chips.
Auteurs : I A Panagiotopoulos [Canada] ; R P Chandra ; J N SaddlerSource :
- Bioresource technology [ 1873-2976 ] ; 2013.
Descripteurs français
- KwdFr :
- MESH :
- analyse : Glucides.
- composition chimique : Bois, Populus.
- isolement et purification : Lignine, Polyosides.
- Acides sulfuriques, Hydrolyse, Vapeur, Éthanol.
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Carbohydrates.
- chemical , isolation & purification : Lignin, Polysaccharides.
- chemical : Ethanol, Steam, Sulfuric Acids.
- chemistry : Populus, Wood.
- Hydrolysis.
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.
DOI: 10.1016/j.biortech.2012.12.093
PubMed: 23334012
Affiliations:
Links toward previous steps (curation, corpus...)
Le document en format XML
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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.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">23334012</PMID><DateCompleted><Year>2013</Year><Month>09</Month><Day>17</Day></DateCompleted><DateRevised><Year>2019</Year><Month>12</Month><Day>10</Day></DateRevised><Article PubModel="Print-Electronic"><Journal><ISSN IssnType="Electronic">1873-2976</ISSN><JournalIssue CitedMedium="Internet"><Volume>130</Volume><PubDate><Year>2013</Year><Month>Feb</Month></PubDate></JournalIssue><Title>Bioresource technology</Title><ISOAbbreviation>Bioresour Technol</ISOAbbreviation></Journal><ArticleTitle>A two-stage pretreatment approach to maximise sugar yield and enhance reactive lignin recovery from poplar wood chips.</ArticleTitle><Pagination><MedlinePgn>570-7</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1016/j.biortech.2012.12.093</ELocationID><ELocationID EIdType="pii" ValidYN="Y">S0960-8524(12)01951-7</ELocationID><Abstract><AbstractText>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.</AbstractText><CopyrightInformation>Copyright © 2012 Elsevier Ltd. All rights reserved.</CopyrightInformation></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Panagiotopoulos</LastName><ForeName>I A</ForeName><Initials>IA</Initials><AffiliationInfo><Affiliation>Forest Products Biotechnology/Bioenergy Group, Faculty of Forestry, University of British Columbia, 2424 Main Mall, Vancouver BC, Canada V6T 1Z4. 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