Recent Advancements and Challenges in Lignin Valorization: Green Routes towards Sustainable Bioproducts

作者：Mati Ullah, Pengyang Liu, Shangxian Xie, Su Sun · 发表于：Molecules · 年份：2022 · DOI：10.3390/molecules27186055 · 被引用次数：52 · 研究领域：Lignin and Wood Chemistry、Catalysis for Biomass Conversion、Biofuel production and bioconversion

The aromatic hetero-polymer lignin is industrially processed in the paper/pulp and lignocellulose biorefinery, acting as a major energy source. It has been proven to be a natural resource for useful bioproducts; however, its depolymerization and conversion into high-value-added chemicals is the major challenge due to the complicated structure and heterogeneity. Conversely, the various pre-treatments techniques and valorization strategies offers a potential solution for developing a biomass-based biorefinery. Thus, the current review focus on the new isolation techniques for lignin, various pre-treatment approaches and biocatalytic methods for the synthesis of sustainable value-added products. Meanwhile, the challenges and prospective for the green synthesis of various biomolecules via utilizing the complicated hetero-polymer lignin are also discussed.