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Improved lignin degradation through distinct microbial community in subsurface sediments of one eutrophic lake

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Abstract Lignocellulose is a promising sustainable alternative fuel and its decomposition is critical for the formation of sediment organic matter. The lignin of lignocellulose limits the access of enzymes to… Click to show full abstract

Abstract Lignocellulose is a promising sustainable alternative fuel and its decomposition is critical for the formation of sediment organic matter. The lignin of lignocellulose limits the access of enzymes to cellulose and slows down the decomposition. Therefore, the development of efficient microbial consortia to deconstruct lignin is of great interest. In this study, a 715-day in situ experiment was performed to investigate the degradation process of macrophyte Phragmites australis debris at different depths of sediments (up to 38 cm) in a eutrophic lake. Although litter mass degradation showed an obvious decreasing tendency as the depth increased, the efficiency of lignin degradation in subsurface sediments was significance higher than that in surface sediments (p

Keywords: lignin degradation; eutrophic lake; improved lignin; degradation; subsurface sediments

Journal Title: Renewable Energy
Year Published: 2019

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