Biodelignification of agricultural and forest wastes: Effect on anaerobic digestion

Four lignocellulosic wastes (wood fiber, grass, corn stover and wheat straw) were treated with the ligninolytic fungus Phanerochaete flavido-alba to improve their anaerobic digestion. After 21 days solid substrate culture, lignin content was depleted in all materials by fungus in a range between...

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Bibliographic Details
Main Authors: López López, María Josefa, Suárez Estrella, Francisca, Vargas García, María Del Carmen, López González, Juan Antonio, Verstichel, Steven, Debeer, Lies, Wierinck, Isabella, Moreno, Joaquin
Format: info:eu-repo/semantics/article
Language:English
Published: 2024
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Online Access:http://hdl.handle.net/10835/14967
https://doi.org/10.1016/j.biombioe.2013.10.021
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Summary:Four lignocellulosic wastes (wood fiber, grass, corn stover and wheat straw) were treated with the ligninolytic fungus Phanerochaete flavido-alba to improve their anaerobic digestion. After 21 days solid substrate culture, lignin content was depleted in all materials by fungus in a range between 5 and 20%, but cellulose and hemicellulose were also biodegraded. Anaerobic biodegradability of corn stover, grass and wood fiber increased as a consequence of fungal treatment. Biogas production was enhanced only in wood fiber. Fungal delignified wood fiber produced 124 NL biogas kg 1 dry wood fiber with a 64% methane, after 21 days anaerobic digestion; while non-inoculated controls did not produce any biogas. Predigestion of agricultural wastes (corn stover, grass and wheat straw) before biodelignification treatment failed to improve subsequent biogas production.