Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

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

Journal Article · · ACS Sustainable Chemistry & Engineering
 [1];  [1];  [1];  [1];  [2];  [1];  [3];  [1];  [1];  [1];  [1];  [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)

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.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1415909
Journal Information:
ACS Sustainable Chemistry & Engineering, Journal Name: ACS Sustainable Chemistry & Engineering Journal Issue: 2 Vol. 6; ISSN 2168-0485
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (37)

Biomass recalcitrance. Part I: the chemical compositions and physical structures affecting the enzymatic hydrolysis of lignocellulose journal March 2012
High-Throughput Screening of Plant Cell-Wall Composition Using Pyrolysis Molecular Beam Mass Spectroscopy book January 2009
Effects on Lignin Structure of Coumarate 3-Hydroxylase Downregulation in Poplar journal May 2012
Assessment of Lignocellulosic Biomass Using Analytical Spectroscopy: an Evolution to High-Throughput Techniques journal July 2013
p-coumaroylated syringyl units in maize lignin: Implications for β-ether cleavage by thioacidolysis journal December 1996
The effect of delignification of forest biomass on enzymatic hydrolysis journal October 2011
Lignin plays a negative role in the biochemical process for producing lignocellulosic biofuels journal June 2014
Recent innovations in analytical methods for the qualitative and quantitative assessment of lignin journal September 2015
Characterization of the Interunit Bonds of Lignin Oligomers Released by Acid-Catalyzed Selective Solvolysis of Cryptomeria japonica and Eucalyptus globulus Woods via Thioacidolysis and 2D-NMR journal November 2016
Significant Increases in Pulping Efficiency in C4H-F5H-Transformed Poplars:  Improved Chemical Savings and Reduced Environmental Toxins journal October 2003
Variation in Cell Wall Composition among Forage Maize ( Zea mays L.) Inbred Lines and Its Impact on Digestibility:  Analysis of Neutral Detergent Fiber Composition by Pyrolysis-Gas Chromatography-Mass Spectrometry journal December 2003
Lignin Structural Variation in Hardwood Species journal May 2012
Quantification of Wheat Straw Lignin Structure by Comprehensive NMR Analysis journal November 2013
Influence of Syringyl to Guaiacyl Ratio on the Structure of Natural and Synthetic Lignins journal January 2010
The DFRC Method for Lignin Analysis. 6. A Simple Modification for Identifying Natural Acetates on Lignins journal November 1998
Detection and Determination of p-Coumaroylated Units in Lignins journal May 1999
Lignins: Natural polymers from oxidative coupling of 4-hydroxyphenyl- propanoids journal January 2004
Lignin modification improves fermentable sugar yields for biofuel production journal June 2007
Preparation and relevance of a cross-coupling product between sinapyl alcohol and sinapyl p-hydroxybenzoate journal January 2004
Investigating plant cell wall components that affect biomass recalcitrance in poplar and switchgrass journal January 2013
Investigation of the fate of poplar lignin during autohydrolysis pretreatment to understand the biomass recalcitrance journal January 2013
Poplar Genomics is Getting Popular: The Impact of the Poplar Genome Project on Tree Research journal January 2004
Lignin content in natural Populus variants affects sugar release journal March 2011
Genetic manipulation of lignin reduces recalcitrance and improves ethanol production from switchgrass journal February 2011
Improved saccharification and ethanol yield from field-grown transgenic poplar deficient in cinnamoyl-CoA reductase journal December 2013
Modifications in Lignin and Accumulation of Phenolic Glucosides in Poplar Xylem upon Down-regulation of Caffeoyl-Coenzyme A O-Methyltransferase, an Enzyme Involved in Lignin Biosynthesis journal August 2000
Profiling of Oligolignols Reveals Monolignol Coupling Conditions in Lignifying Poplar Xylem journal October 2004
Antisense Down-Regulation of 4CL Expression Alters Lignification, Tree Growth, and Saccharification Potential of Field-Grown Poplar journal August 2010
Transgenic switchgrass ( Panicum virgatum L.) targeted for reduced recalcitrance to bioconversion: a 2-year comparative analysis of field-grown lines modified for target gene or genetic element expression journal February 2017
The Genome of Black Cottonwood, Populus trichocarpa (Torr. & Gray) journal September 2006
Biomass Recalcitrance: Engineering Plants and Enzymes for Biofuels Production journal February 2007
Role of Functional Groups in Lignin Inhibition of Enzymatic Hydrolysis of Cellulose to Glucose journal March 2008
Lignin monomer composition affects Arabidopsis cell-wall degradability after liquid hot water pretreatment journal January 2010
High-resolution genetic mapping of allelic variants associated with cell wall chemistry in Populus journal January 2015
Consolidated bioprocessing of Populus using Clostridium (Ruminiclostridium) thermocellum: a case study on the impact of lignin composition and structure journal February 2016
Variation of S/G Ratio and Lignin Content in a Populus Family Influences the Release of Xylose by Dilute Acid Hydrolysis journal January 2006
Erythro/threo ratio of β-O-4-5 structures as an important structural characteristic of lignin. Part 4: Variation in the erythro/threo ratio in softwood and hardwood lignins and its relation to syringyl/guaiacyl ratio journal May 2005

Cited By (8)

Lignin Engineering in Forest Trees journal July 2019
Cell wall compositional and vascular traits of hybrid poplar wood in micropropagated plants and plants propagated from root cuttings journal May 2019
Systematic parameterization of lignin for the CHARMM force field journal January 2019
Fractionation of non-timber wood from Atlantic mixed forest into high-value lignocellulosic materials journal March 2020
Use of the lignocellulose-degrading bacterium Caldicellulosiruptor bescii to assess recalcitrance and conversion of wild-type and transgenic poplar journal March 2020
Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis journal December 2019
Fractionation of non-timber wood from Atlantic mixed forest into high-value lignocellulosic materials text January 2020
Fractionation of non-timber wood from Atlantic mixed forest into high-value lignocellulosic materials text January 2020

Similar Records

Significance of Lignin S/G Ratio in Biomass Recalcitrance of Populus trichocarpa Variants for Bioethanol Production
Journal Article · Tue Dec 26 23:00:00 EST 2017 · ACS Sustainable Chemistry & Engineering · OSTI ID:1431420

Insights of biomass recalcitrance in natural Populus trichocarpa variants for biomass conversion
Journal Article · Mon Oct 09 00:00:00 EDT 2017 · Green Chemistry · OSTI ID:1410915

Insights of biomass recalcitrance in natural Populus trichocarpa variants for biomass conversion
Journal Article · Mon Oct 09 00:00:00 EDT 2017 · Green Chemistry · OSTI ID:1633222