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Mechanisms of Lignin-Degrading Enzymes
Protein & Peptide Letters, 2020Lignin is abundant in nature. It is a potentially valuable bioresource, but, because of its complex structure, it is difficult to degrade. However, enzymatic degradation of lignin is effective. Major lignin-degrading enzymes include laccases, lignin peroxidases, and manganese peroxidases.
Jianlong Xiao, Sitong Zhang, Guang Chen
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Lignin-Degrading Enzyme Activities
2012Over the past three decades, the activities of four kinds of enzyme have been purported to furnish the mechanistic foundations for macromolecular lignin depolymerization in decaying plant cell walls. The pertinent fungal enzymes comprise lignin peroxidase (with a relatively high redox potential), manganese peroxidase, an alkyl aryl etherase, and ...
Yi-ru, Chen +2 more
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Lignin degradation by ascomycetes
2021In nature, it is often surmised that lignin is degraded almost exclusively by basidiomycetes, with minor contributions from bacteria and even fewer from ascomycetes. Yet, numerous studies underscore the ability of many ascomycetes from a wide range of taxonomic classes to degrade newly-formed and ancient lignin, sometime more efficiently than ...
Ferrari, Roselyne +2 more
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Lignin-Degrading Peroxidases from Phanerochaete chrysosporium
Journal of Biotechnology, 1990Lignin and manganese peroxidases are secreted by the basidiomycete Phanerochaete chrysosporium during secondary metabolism. These enzymes play major roles in lignin degradation. The active site amino acid sequence of these lignin-degrading peroxidases is similar to that of horseradish peroxidase (HRP) and cytochrome c peroxidase (CcP). The mechanism by
D, Cai, M, Tien
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Microbial degradation of lignin
Enzyme and Microbial Technology, 1980Abstract The transformations of lignin that occur during its biodegradation are complex and incompletely understood. Certain fungi of the white-rot group, and possibly other fungi and bacteria, completely decompose lignin to carbon dioxide and water. Other fungi and bacteria apparently degrade lignin incompletely.
Don L. Crawford, Ronald L. Crawford
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Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1987
The substantial potential applications of lignin-degrading microbes and enzymes have spurred research on lignin biodegradation in recent years. As described here, that research has led to the discovery in the basidiomycete Phanerochaete chrysosporium of the first lignin-degrading enzymes and elucidation of their ...
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The substantial potential applications of lignin-degrading microbes and enzymes have spurred research on lignin biodegradation in recent years. As described here, that research has led to the discovery in the basidiomycete Phanerochaete chrysosporium of the first lignin-degrading enzymes and elucidation of their ...
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Biomimetic degradation of lignin
Journal of Biotechnology, 1993Abstract The ligninolytic cultures of Phenarochaete chrysosporium produce two major groups of lignin degrading enzymes, the lignin peroxidase (Tien and Kirk, 1983) and the manganese-dependent peroxidase (Kuwahara et al., 1984). Both enzymes are hemeproteins and catalyze the oxidation of lignin model compounds by one-electron oxidations.
Futong Cui +4 more
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Actinomycetes and Lignin Degradation
2005Publisher Summary The chapter discusses the role of actinomycetes in lignocelluloses breakdown, and the details of the scale and method by which such breakdown takes place are limited. However, there is a wide range of examples where streptomyces and other actinomycetes have been identified as degrading lignin or lignocelluloses. The enzymes involved
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Lignin degradation by microorganisms: A review
Biotechnology Progress, 2021Abstract Lignin is an abundant plant‐based biopolymer that has found applications in a variety of industries from construction to bioethanol production. This recalcitrant branched polymer is naturally degraded by many different species of microorganisms, including fungi and bacteria.
Ghada Atiwesh +3 more
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Lignin Synthesis and Degradation
2020Lignin, an amorphous hetero-polymer, deposited over the secondary cell walls to form an inflexible and impervious layer where it acts as structural barrier to protect the plant cells from chemical and biological invasions. Besides this, it also contributes to nutrients and water transportation through vascular bundles in plants.
Vishal Ahuja, Raya Roy
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