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Current understanding of the correlation of lignin structure with biomass recalcitrance

Journal Article · · Frontiers in Chemistry
 [1];  [1];  [2]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States); Univ. of Tennessee Institute of Agriculture, Knoxville, TN (United States)
Lignin, a complex aromatic polymer in terrestrial plants, contributes significantly to biomass recalcitrance to microbial and/or enzymatic deconstruction. To reduce biomass recalcitrance, substantial endeavors have been exerted on pretreatment and lignin engineering in the past few decades. Lignin removal and/or alteration of lignin structure have been shown to result in reduced biomass recalcitrance with improved cell wall digestibility. While high lignin content is usually a barrier to a cost-efficient application of bioresources to biofuels, the direct correlation of lignin structure and its concomitant properties with biomass remains unclear due to the complexity of cell wall and lignin structure. Advancement in application of biorefinery to production of biofuels, chemicals, and bio-derived materials necessitates a fundamental understanding of the relationship of lignin structure and biomass recalcitrance. In this mini-review, we focus on recent investigations on the influence of lignin chemical properties on bioprocessability—pretreatment and enzymatic hydrolysis of biomass. Furthermore, lignin-enzyme interactions and the effects of lignin compositional units, hydroxycinnamates, and lignin functional groups on biomass recalcitrance have been highlighted, which will be useful not only in addressing biomass recalcitrance but also in deploying renewable lignocelluloses efficiently.
Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). BioEnergy Science Center (BESC); Joint Institute for Biological Sciences (JIBS)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1333663
Journal Information:
Frontiers in Chemistry, Journal Name: Frontiers in Chemistry Vol. 4; ISSN 2296-2646
Publisher:
Frontiers Research FoundationCopyright Statement
Country of Publication:
United States
Language:
English

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Differences in S/G ratio in natural poplar variants do not predict catalytic depolymerization monomer yields journal May 2019
Genetic loci simultaneously controlling lignin monomers and biomass digestibility of rice straw journal February 2018
Altered lignocellulose chemical structure and molecular assembly in CINNAMYL ALCOHOL DEHYDROGENASE-deficient rice journal November 2019
The effect of liquid hot water pretreatment on the chemical–structural alteration and the reduced recalcitrance in poplar journal November 2017
Progress in understanding and overcoming biomass recalcitrance: a BioEnergy Science Center (BESC) perspective journal November 2017
The impact of silicon on cell wall composition and enzymatic saccharification of Brachypodium distachyon journal June 2018
Tracking of enzymatic biomass deconstruction by fungal secretomes highlights markers of lignocellulose recalcitrance journal April 2019
Aqueous Ammonia Pre-treatment of Wheat Straw: Process Optimization and Broad Spectrum Dye Adsorption on Nitrogen-Containing Lignin journal August 2019
Report on the Current Inventory of the Toolbox for Plant Cell Wall Analysis: Proteinaceous and Small Molecular Probes journal May 2018
Lignin Engineering in Forest Trees journal July 2019
Mechanism and Compatibility of Pretreated Lignocellulosic Biomass and Polymeric Mixed Matrix Membranes: A Review journal November 2020
Cellulases adsorb reversibly on biomass lignin: DJAJADI et al. journal October 2018
Topochemical Understanding of Lignin Distribution During Hydrothermal Flowthrough Pretreatment journal August 2018
Botryosphaeran – A Fungal Exopolysaccharide of the (1→3)(1→6)-β-D-Glucan Kind: Structure and Biological Functions book January 2019
Immobilization of cellulase in the non-natural ionic liquid environments to enhance cellulase activity and functional stability journal January 2019
Agave bagasse biorefinery: processing and perspectives journal September 2017
Modification of plant cell wall chemistry impacts metabolome and microbiome composition in Populus PdKOR1 RNAi plants journal June 2018
Catalytic Strategies Towards Lignin-Derived Chemicals journal August 2018
Modified expression of ZmMYB167 in Brachypodium distachyon and Zea mays leads to increased cell wall lignin and phenolic content journal June 2019
Effect of pretreatment severity on the cellulose and lignin isolated from Salix using ionoSolv pretreatment journal January 2017
Systematic parameterization of lignin for the CHARMM force field journal January 2019
Overexpression of a serine hydroxymethyltransferase increases biomass production and reduces recalcitrance in the bioenergy crop Populus journal January 2019
Pilot-scale hydrothermal pretreatment and optimized saccharification enables bisabolene production from multiple feedstocks journal January 2019
Diol pretreatment to fractionate a reactive lignin in lignocellulosic biomass biorefineries journal January 2019
Phenolic cross-links: building and de-constructing the plant cell wall journal January 2020
Lignin biosynthesis: old roads revisited and new roads explored journal December 2019
Decoupling the direct and indirect effects of climate on plant litter decomposition: Accounting for stress-induced modifications in plant chemistry journal January 2018
Characterization of Miscanthus cell wall polymers journal August 2018
Host lignin composition affects haustorium induction in the parasitic plants Phtheirospermum japonicum and Striga hermonthica journal March 2018
Overexpression of a Prefoldin β subunit gene reduces biomass recalcitrance in the bioenergy crop Populus journal September 2019
Multimodal analysis of pretreated biomass species highlights generic markers of lignocellulose recalcitrance journal February 2018
Lignin from hydrothermally pretreated grass biomass retards enzymatic cellulose degradation by acting as a physical barrier rather than by inducing nonproductive adsorption of enzymes journal April 2018
A dynamic model of lignin biosynthesis in Brachypodium distachyon journal September 2018
Dynamical assessment of fluorescent probes mobility in poplar cell walls reveals nanopores govern saccharification journal October 2018
Combining loss of function of FOLYLPOLYGLUTAMATE SYNTHETASE1 and CAFFEOYL-COA 3-O-METHYLTRANSFERASE1 for lignin reduction and improved saccharification efficiency in Arabidopsis thaliana journal May 2019
Genetic variation of biomass recalcitrance in a natural Salix viminalis (L.) population journal June 2019
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Use of the lignocellulose-degrading bacterium Caldicellulosiruptor bescii to assess recalcitrance and conversion of wild-type and transgenic poplar journal March 2020
Miscanthus x giganteus Stem Versus Leaf-Derived Lignins Differing in Monolignol Ratio and Linkage journal March 2019
Substrate-Related Factors Affecting Cellulosome-Induced Hydrolysis for Lignocellulose Valorization journal July 2019
Applications of Lignocellulosic Fibers and Lignin in Bioplastics: A Review journal April 2019
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Characterization of Miscanthus cell wall polymers text January 2019

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