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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 β–5 linkage contents, while it had positive ones with β-O-4 linkage, lignin molecular weight, and ethanol production. In conclusion, 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];  [1];  [1];  [1];  [2];  [1];  [3];  [1];  [1];  [1];  [1]; ORCiD logo [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Georgia Inst. of Technology, Atlanta, GA (United States)
  3. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
OSTI Identifier:
1415909
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
ACS Sustainable Chemistry & Engineering
Additional Journal Information:
Journal Volume: 6; Journal Issue: 2; Journal ID: ISSN 2168-0485
Publisher:
American Chemical Society (ACS)
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. Mon . "Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production". United States. doi:10.1021/acssuschemeng.7b03586. https://www.osti.gov/servlets/purl/1415909.
@article{osti_1415909,
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 β–5 linkage contents, while it had positive ones with β-O-4 linkage, lignin molecular weight, and ethanol production. In conclusion, 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 = {2017},
month = {12}
}

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