Anaerobic degradation of coniferyl alcohol by methanogenic consortia

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Abstract
Coniferyl alcohol was shown to be completely biodegradable to carbon dioxide and methane under strictly anaerobic culture conditions. The mineralization of 300 mg of the substrate per liter was observed in acclimated ferulic acid-degrading methanogenic consortia, as well as in anaerobic enrichments on coniferyl alcohol seeded with sewage sludge. Ferulic and phenylpropionic acids were detected in the cultures degrading coniferyl alcohol as the sole carbon and energy source, suggesting that this compound is oxidized to ferulic acid, which is then degraded as previously described.