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Title: The critical role of lignin in lignocellulosic biomass conversion and recent pretreatment strategies: A comprehensive review

Journal Article · · Bioresource Technology
 [1];  [2]; ORCiD logo [3]; ORCiD logo [4]
  1. State Univ. of New York (SUNY), Syracuse, NY (United States). College of Environmental Science and Forestry, Dept. of Paper and Bioprocess Engineering
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division and Center for Bioenergy Innovation (CBI), Joint Inst. for Biological Sciences
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Biosciences Division and Center for Bioenergy Innovation (CBI), Joint Inst. for Biological Sciences; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering and Dept. of Forestry, Wildlife and Fisheries, Center of Renewable Carbon

Heterogeneity and rigidity of lignocellulose causing resistance to its deconstruction have provided technical and economic challenges in the current biomass conversion processes. Lignin has been considered as a crucial recalcitrance component in biomass utilization. An in-depth understanding of lignin properties and their influences on biomass conversion can provide clues to improve biomass utilization. Also, utilization of lignin can significantly increase the economic viability of biorefinery. Recent lignin-targeting pretreatments have aimed not only to overcome recalcitrance for biomass conversion but also to selectively fractionate lignin for lignin valorization. Numerous studies have been conducted in biomass characteristics and conversion technologies, and the role of lignin is critical for lignin valorization and biomass pretreatment development. In this review, we provide a comprehensive review of lignin-related biomass characteristics, the impact of lignin on the biological conversion of biomass, and recent lignin-targeting pretreatment strategies. The desired lignin properties in biorefinery and future pretreatment directions are also discussed.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
AC05-00OR22725; FWP-ERKP752
OSTI ID:
1649140
Alternate ID(s):
OSTI ID: 1595855
Journal Information:
Bioresource Technology, Vol. 301, Issue 1; ISSN 0960-8524
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 270 works
Citation information provided by
Web of Science

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Constraints and advances in high-solids enzymatic hydrolysis of lignocellulosic biomass: a critical review journal March 2020