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Title: An “ideal lignin” facilitates full biomass utilization

Journal Article · · Science Advances
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5];  [5]; ORCiD logo [6]; ORCiD logo [1]; ORCiD logo [1]
  1. Univ. of Wisconsin, Madison, WI (United States)
  2. Univ. of Wisconsin, Madison, WI (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
  3. Univ. of Wisconsin, Madison, WI (United States); Kyoto Univ. (Japan)
  4. State Univ. of New Jersey, New Brunswick, NJ (United States); Bakto Flavors LLC, North Brunswick, NJ (United States)
  5. Univ. of North Texas, Denton, TX (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  6. École Polytechnique Fédérale de Lausanne (Switzerland)

Lignin, a major component of lignocellulosic biomass, is crucial to plant growth and development but is a major impediment to efficient biomass utilization in various processes. Valorizing lignin is increasingly realized as being essential. However, rapid condensation of lignin during acidic extraction leads to the formation of recalcitrant condensed units that, along with similar units and structural heterogeneity in native lignin, drastically limits product yield and selectivity. Catechyl lignin (C-lignin), which is essentially a benzodioxane homopolymer without condensed units, might represent an ideal lignin for valorization, as it circumvents these issues. We discovered that C-lignin is highly acid-resistant. Hydrogenolysis of C-lignin resulted in the cleavage of all benzodioxane structures to produce catechyl-type monomers in near-quantitative yield with a selectivity of 90% to a single monomer.

Research Organization:
Great Lakes Bioenergy Research Center (GLBRC), Madison, WI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0018409; FC02-07ER64494; AC05-000R22725
OSTI ID:
1543278
Journal Information:
Science Advances, Vol. 4, Issue 9; ISSN 2375-2548
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 138 works
Citation information provided by
Web of Science

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Cited By (8)

Metal‐Free Photochemical Degradation of Lignin‐Derived Aryl Ethers and Lignin by Autologous Radicals through Ionic Liquid Induction journal August 2019
Self-supported hydrogenolysis of aromatic ethers to arenes journal November 2019
Chemodivergent hydrogenolysis of eucalyptus lignin with Ni@ZIF-8 catalyst journal January 2019
Convergent production of 2,5-furandicarboxylic acid from biomass and CO 2 journal January 2019
Selective utilization of methoxy groups in lignin for N -methylation reaction of anilines journal January 2019
Kinetic and mechanistic insights into hydrogenolysis of lignin to monomers in a continuous flow reactor journal January 2019
Enzymatic basis for C‐lignin monomer biosynthesis in the seed coat of Cleome hassleriana journal May 2019
Lignin biosynthesis: old roads revisited and new roads explored journal December 2019

Figures / Tables (6)