An insight into omics analysis and metabolic pathway engineering of lignin-degrading enzymes for enhanced lignin valorization. (July 2023)

• Record Type: Journal Article
• Authors: Paul, Manish; Pandey, Niteesh Kumar; Banerjee, Ayan; Shroti, Gireesh Kumar; Tomer, Preeti; Gazara, Rajesh Kumar; Thatoi, Hrudayanath; Bhaskar, Thallada; Hazra, Saugata; Ghosh, Debashish
• Is Part Of: Bioresource technology. Volume 379(2023)
• Publication Date: 2023-07
• Subjects: Lignin -- Ligninase -- Metabolomics -- Lignocellulosic biomass -- Metabolic pathway engineering; 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.2023.129045
• Languages: English
• ISSNs: 0960-8524

Abstract

Graphical abstract: Highlights: Fungal ligninases hold extraordinary potential towards lignin degradation. Lignin modifying enzymes (LMEs) exhibit divergence and substrate promiscuity. Comparative interaction profiles of various lignin-degrading enzymes were described using multi-omics. Future of lignin valorization significantly depends upon metabolic and pathway engineering. Abstract: Lignin, a highly heterogeneous polymer of lignocellulosic biomass, is intricately associated with cellulose and hemicellulose, responsible for its strength and rigidity. Lignin decomposition is carried out through certain enzymes derived from microorganisms to promote the hydrolysis of lignin. Analyzing multi-omics data helps to emphasize the probable value of fungal-produced enzymes to degrade the lignocellulosic material, which provides them an advantage in their ecological niches. This review focuses on lignin biodegrading microorganisms and associated ligninolytic enzymes, including lignin peroxidase, manganese peroxidase, versatile peroxidase, laccase, and dye-decolorizing peroxidase. Further, enzymatic catalysis, lignin biodegradation mechanisms, vital factors responsible for lignin modification and degradation, and the design and selection of practical metabolic pathways are also discussed. Highlights were made on metabolic pathway engineering, different aspects of omics analyses, and its scope and applications to ligninase enzymes. Finally, the advantages and essential steps of successfully applying metabolic engineering and its path forward have been addressed.