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Insights of biomass recalcitrance in natural Populus trichocarpa variants for biomass conversion

Journal Article · · Green Chemistry
DOI:https://doi.org/10.1039/c7gc02219k· OSTI ID:1633222
 [1];  [2];  [2];  [3];  [2];  [2];  [2];  [2];  [3];  [2];  [4];  [4];  [5];  [6];  [2];  [2];  [2];  [2];  [7]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). BioEnergy Science Center (BESC) and UT-ORNL Joint Institute for Biological Science
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). BioEnergy Science Center (BESC)
  3. Georgia Inst. of Technology, Atlanta, GA (United States). Renewable Bioproducts Institute
  4. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States)
  5. USDOE Joint Genome Institute (JGI), Walnut Creek, CA (United States); HudsonAlpha Institute for Biotechnology, Huntsville, AL (United States)
  6. West Virginia University, Morgantown, WV (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). BioEnergy Science Center (BESC) and UT-ORNL Joint Institute for Biological Science; Univ. of Tennessee, Knoxville, TN (United States). Center for Renewable Carbon, Department of Forestry, Wildlife, and Fisheries
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Populus has been investigated as a promising biomass feedstock for alternative fuels and chemicals. Physicochemical characteristics and genomic information of biomass feedstocks are among the essential information that can help not only advance our understanding of biomass recalcitrance but also in its efficient utilization. Here in this paper, the recalcitrance of natural Populus variants was elucidated in three aspects: (1) sugar release, (2) physicochemical properties, and (3) relative variation of gene expression within natural poplar variants. The sugar release performance of natural Populus variants was evaluated with their correlation with biomass recalcitrance-related characteristics. Among the physicochemical properties of poplar, the lignin content, lignin molecular weight, lignin S/G ratio, and cellulose accessibility were found to correlate with sugar release. The results demonstrated that the lignin content was negatively correlated with sugar release, whereas the lignin molecular weight, lignin S/G ratio, and cellulose accessibility were positively associated with poplar sugar release. The trend of differential gene expression of each variant also supports the characterization results and their effects on biomass conversion.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC02-05CH11231; AC05-00OR22725
OSTI ID:
1633222
Alternate ID(s):
OSTI ID: 1410915
Journal Information:
Green Chemistry, Journal Name: Green Chemistry Journal Issue: 22 Vol. 19; ISSN GRCHFJ; ISSN 1463-9262
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (6)

New Insight into Enzymatic Hydrolysis of the Rice Straw and Poplar: an In-depth Statistical Analysis on the Multiscale Recalcitrance journal January 2019
Differences in extractability under subcritical water reveal interconnected hemicellulose and lignin recalcitrance in birch hardwoods journal January 2018
PdWND3A, a wood-associated NAC domain-containing protein, affects lignin biosynthesis and composition in Populus journal November 2019
A structured understanding of cellobiohydrolase I binding to poplar lignin fractions after dilute acid pretreatment journal April 2018
A finalized determinant for complete lignocellulose enzymatic saccharification potential to maximize bioethanol production in bioenergy Miscanthus journal April 2019
Lignocellulosic Biomass: Understanding Recalcitrance and Predicting Hydrolysis journal December 2019

Figures / Tables (14)

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Related Subjects

09 BIOMASS FUELS