Recent advancement in lignin biorefinery: With special focus on enzymatic degradation and valorization. (November 2019)

• Record Type: Journal Article
• Authors: Li, Chong; Chen, Chao; Wu, Xiaofen; Tsang, Chi-Wing; Mou, Jinhua; Yan, Jianbin; Liu, Yun; Lin, Carol Sze Ki
• Is Part Of: Bioresource technology. Volume 291(2019)
• Publication Date: 2019-11
• Subjects: Biological conversion -- Enzymatic degradation -- Lignin -- Value-added products; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2019.121898
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Lignin is the most abundant aromatic resource and a major source of renewable energy. Metal-dependent oxidoreductases play important roles in lignin degradation. Tailoring lignin biosynthesis toward sustainable and value-added chemicals. Main challenges are uncontrolled lignin degradation and low bioconversion efficiency. Abstract: With the intensive development of lignocellulosic biorefineries to produce fuels and chemicals from biomass-derived carbohydrates, lignin was generated at a large quantity every year. Therefore, lignin has received increasing attention as an abundant aromatics resource in terms of research and development efforts for value-added chemicals production. In this review, studies about lignin degradation especially the crucial enzymes involved and the reaction mechanism were substantially discussed, which provided the molecular basis of lignin biodegradation. Then, the latest improvements in lignin valorization by biological methods were summarized and case studies about value-added compounds from lignin were introduced. Afterwards, challenges, opportunities and prospects regarding biorefinery of lignin were presented.