Linked Life Data

21474304

Source:http://linkedlifedata.com/resource/pubmed/id/21474304

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2011-5-2
pubmed:abstractText
Alfalfa (Medicago sativa L.) biomass was evaluated for biochemical conversion into ethanol using dilute-acid and ammonia pretreatments. The two alfalfa lines compared were a reduced S-lignin transgenic cultivar generated through down regulation of the caffeic acid O-methyltransferase gene and a wild-type control. Both were harvested at two maturities. All the samples had similar carbohydrate contents including a mean composition of 316 g glucan and 497 g total neutral carbohydrates per kg dry biomass, which corresponds to a theoretic ethanol yield of 382 l/ton. Ethanol yields for alfalfa stems pretreated with dilute-acid were significantly impacted by harvest maturity and lignin composition, whereas when pretreated with dilute-ammonia, yield was solely affected by lignin composition. Use of a recombinant xylose-fermenting Saccharomyces strain, for converting the ammonia pretreated alfalfa samples, further increased ethanol yields. Ethanol yields for the xylose-fermenting yeast were 232-278 l/ton and were significantly enhanced for the reduced S lignin cultivars.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1873-2976
pubmed:author
pubmed:copyrightInfo
Copyright © 2011 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
102
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
6479-86
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Enhancing alfalfa conversion efficiencies for sugar recovery and ethanol production by altering lignin composition.
pubmed:affiliation
Bioenergy Research Unit, United States Department of Agriculture, Agricultural Research Service, National Center for Agricultural Utilization Research, Peoria, IL 61604, USA. Bruce.Dien@ars.usda.gov
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't