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

被引：413
|
作者：
Yoo, Chang Geun [1 ]
Meng, Xianzhi [2 ]
Pu, Yunqiao [3 ,4 ]
Ragauskas, Arthur J. [2 ,3 ,4 ,5 ]
机构：
[1] SUNY Syracuse, Dept Paper & Bioproc Engn, Coll Environm Sci & Forestry, Syracuse, NY 13210 USA
[2] Univ Tennessee, Dept Chem & Biomol Engn, Knoxville, TN 37996 USA
[3] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN 37831 USA
[4] Oak Ridge Natl Lab, CBI, Joint Inst Biol Sci, Oak Ridge, TN 37831 USA
[5] Univ Tennessee, Dept Forestry Wildlife & Fisheries, Ctr Renewable Carbon, Inst Agr, Knoxville, TN 37996 USA
来源：
BIORESOURCE TECHNOLOGY | 2020年 / 301卷 / 301期
关键词：
Lignin characteristics; Recalcitrance; Biorefinery; Lignin inhibition; Lignin valorization; EUTECTIC SOLVENT PRETREATMENT; POPULUS-TRICHOCARPA VARIANTS; CARBOHYDRATE COMPLEX LCC; ROT FUNGI PRETREATMENT; ENZYMATIC-HYDROLYSIS; GAMMA-VALEROLACTONE; DILUTE-ACID; ORGANOSOLV PRETREATMENT; STRUCTURAL FEATURES; EXTRACTABLE LIGNIN;
D O I：
10.1016/j.biortech.2020.122784
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
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. This review provides 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.
引用
收藏
页数：10
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