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Exploring bacterial lignin degradation
Current Opinion in Chemical Biology, 2014Plant biomass represents a renewable carbon feedstock that could potentially be used to replace a significant level of petroleum-derived chemicals. One major challenge in its utilization is that the majority of this carbon is trapped in the recalcitrant structural polymers of the plant cell wall. Deconstruction of lignin is a key step in the processing
Margaret E, Brown, Michelle C Y, Chang
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Degradation of lignin by ozone. I. The kinetics of lignin degradation of ozone
Journal of Polymer Science: Polymer Chemistry Edition, 1981AbstractThe ozonolysis of spruce periodate and cuoxam lignins and protolignin in spruce wood has been studied in 45% aqueous acetic acid at room temperature. Stirring affected the rate of reaction and a tentative explanation is given. Degradation followed first‐order kinetics characterized by a rate constant K with values of 6.96 × 10−4s−1 for ...
R. A. D. Mbachu, R. St. John Manley
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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 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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On the bacterial degradation of lignin
European Journal of Applied Microbiology and Biotechnology, 1982Several bacteria which can degrade numerous phenols with structural relationships to lignin were tested for their ability to degrade lignin. The biodegradation with all the tested bacteria was poor. The method of lignin extraction, presence of glucose as cosubstrate and changes in the nitrogen source of the medium did not affect the extent of lignin ...
H. Janshekar, A. Fiechter
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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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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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Photoelectrochemical degradation of lignin
Journal of Applied Electrochemistry, 2000We have evaluated the efficient of degradation of lignin by an photoelectrochemical process. Using a Ti/Ru0.1Sn0.6Ti0.3O2 electrode, a quartz reaction device and an artificial ultraviolet light, decoloration ratios higher than 70%, and reductions of 51% and 83% in TOC and total phenol products, respectively, were observed for a reaction time of 6 h ...
R. Pelegrini +4 more
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Degradation of lignin with monomethylamine
Chemical Engineering & Technology, 1992AbstractWood chips were treated with gaseous mixtures of monomethylamine and water vapour at temperatures between 160 and 120°C and pressurs ranging between 1.5 and 7.0 MPa. The degradation products were subsequently extracted with different solvents at ambient pressure.
Siegfried Peter, Rolf Gotz
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Microbiological Degradation of Lignin
Russian Chemical Reviews, 1975The problems of the microbiological degradation of lignin, closely related to the solution of a number of important theoretical and practical problems, have been continually attracting attention in recent years. The most recent studies in this field are analysed in the present review.
O P Grushnikov, O N Antropova
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