Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China.
Co-Innovation Center of Efficient Processing and Utilization of Forestry Resources, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu 210037, China; Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
Bioresour Technol. 2021 Mar;324:124631. doi: 10.1016/j.biortech.2020.124631. Epub 2020 Dec 31.
The demands of energy sustainability drive efforts to bio-chemical conversion of biomass into biofuels through pretreatment, enzymatic hydrolysis, and microbial fermentation. Pretreatment leads to significant structural changes of the complex lignin polymer that affect yield and productivity of the enzymatic conversion of lignocellulosic biomass. Structural changes of lignin after pretreatment include functional groups, inter unit linkages and compositions. These changes influence non-productive adsorption of enzyme on lignin through hydrophobic interaction and electrostatic interaction as well as hydrogen bonding. This paper reviews the relationships between structural changes of lignin and enzymatic hydrolysis of pretreated lignocellulosic biomass. The formation of pseudo-lignin during dilute acid pretreatment is revealed, and their negative effect on enzymatic hydrolysis is discussed.
能源可持续性的需求推动了通过预处理、酶解和微生物发酵将生物质生化转化为生物燃料的努力。预处理导致复杂木质素聚合物的显著结构变化，从而影响木质纤维素生物质的酶转化的产率和生产力。预处理后木质素的结构变化包括官能团、单元间键合和组成。这些变化通过疏水相互作用、静电相互作用和氢键影响酶对木质素的非生产性吸附。本文综述了木质素结构变化与预处理木质纤维素生物质的酶水解之间的关系。揭示了稀酸预处理过程中伪木质素的形成及其对酶水解的负面影响。
