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Title: Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production

Abstract

Lignin S/G ratio has been investigated as an important factor in biomass recalcitrance to bioethanol production. Because of the complexity and variety of biomass, recalcitrance was also reportedly influenced by several other factors, such as total lignin content, degree of cellulose polymerization, etc. In addition, the effect of S/G ratio on biomass conversion is not uniform across plant species. Herein, 11 Populus trichocarpa natural variants grown under the same conditions with similar total lignin content were selected to minimize the effects of other factors. The lignin S/G ratio of the selected P. trichocarpa natural variants showed negative correlations with p-hydroxybenzoate (PB) and ..beta..-5 linkage contents, while it had positive ones with ..beta..-O-4 linkage, lignin molecular weight, and ethanol production. This study showed the importance of lignin S/G ratio as an independent recalcitrance factor that may aid future energy crop engineering and biomass conversion strategies.

Authors:
 [1];  [2];  [2];  [2];  [3];  [1];  [4];  [2];  [2];  [2];  [1]; ORCiD logo [5]
  1. BioEnergy Science Center &, Center for BioEnergy Innovation, Biosciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States; UT−ORNL Joint Institute for Biological Science, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
  2. BioEnergy Science Center &, Center for BioEnergy Innovation, Biosciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States
  3. School of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive, Atlanta, Georgia 30332, United States
  4. National Renewable Energy Laboratory, U.S. Department of Energy, 15013 Denver West Parkway, Golden, Colorado 80401, United States
  5. BioEnergy Science Center &, Center for BioEnergy Innovation, Biosciences Division, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States; UT−ORNL Joint Institute for Biological Science, Oak Ridge National Laboratory, 1 Bethel Valley Road, Oak Ridge, Tennessee 37831, United States; Department of Chemical and Biomolecular Engineering &, Center for Renewable Carbon, Department of Forestry, Wildlife, and Fisheries, University of Tennessee, 1512 Middle Drive, Knoxville, Tennessee 37996, United States
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1431420
Report Number(s):
NREL/JA-5100-71261
Journal ID: ISSN 2168-0485
DOE Contract Number:
AC36-08GO28308
Resource Type:
Journal Article
Resource Relation:
Journal Name: ACS Sustainable Chemistry & Engineering; Journal Volume: 6; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; bioethanol; lignin S/G ratio; NMR; Populus; Py-MBMS

Citation Formats

Yoo, Chang Geun, Dumitrache, Alexandru, Muchero, Wellington, Natzke, Jace, Akinosho, Hannah, Li, Mi, Sykes, Robert W., Brown, Steven D., Davison, Brian, Tuskan, Gerald A., Pu, Yunqiao, and Ragauskas, Arthur J. Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production. United States: N. p., 2017. Web. doi:10.1021/acssuschemeng.7b03586.
Yoo, Chang Geun, Dumitrache, Alexandru, Muchero, Wellington, Natzke, Jace, Akinosho, Hannah, Li, Mi, Sykes, Robert W., Brown, Steven D., Davison, Brian, Tuskan, Gerald A., Pu, Yunqiao, & Ragauskas, Arthur J. Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production. United States. doi:10.1021/acssuschemeng.7b03586.
Yoo, Chang Geun, Dumitrache, Alexandru, Muchero, Wellington, Natzke, Jace, Akinosho, Hannah, Li, Mi, Sykes, Robert W., Brown, Steven D., Davison, Brian, Tuskan, Gerald A., Pu, Yunqiao, and Ragauskas, Arthur J. Wed . "Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production". United States. doi:10.1021/acssuschemeng.7b03586.
@article{osti_1431420,
title = {Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production},
author = {Yoo, Chang Geun and Dumitrache, Alexandru and Muchero, Wellington and Natzke, Jace and Akinosho, Hannah and Li, Mi and Sykes, Robert W. and Brown, Steven D. and Davison, Brian and Tuskan, Gerald A. and Pu, Yunqiao and Ragauskas, Arthur J.},
abstractNote = {Lignin S/G ratio has been investigated as an important factor in biomass recalcitrance to bioethanol production. Because of the complexity and variety of biomass, recalcitrance was also reportedly influenced by several other factors, such as total lignin content, degree of cellulose polymerization, etc. In addition, the effect of S/G ratio on biomass conversion is not uniform across plant species. Herein, 11 Populus trichocarpa natural variants grown under the same conditions with similar total lignin content were selected to minimize the effects of other factors. The lignin S/G ratio of the selected P. trichocarpa natural variants showed negative correlations with p-hydroxybenzoate (PB) and ..beta..-5 linkage contents, while it had positive ones with ..beta..-O-4 linkage, lignin molecular weight, and ethanol production. This study showed the importance of lignin S/G ratio as an independent recalcitrance factor that may aid future energy crop engineering and biomass conversion strategies.},
doi = {10.1021/acssuschemeng.7b03586},
journal = {ACS Sustainable Chemistry & Engineering},
number = 2,
volume = 6,
place = {United States},
year = {Wed Dec 27 00:00:00 EST 2017},
month = {Wed Dec 27 00:00:00 EST 2017}
}