Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.

Livestock manure emits reduced sulfur compounds and methane, which affect nature and the climate. These gases are efficiently mitigated by addition of a tannic acid-sodium fluoride combination inhibitor (TA-NaF), and to some extent by acidification. In this paper, TA-NaF treatment was performed on s...

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Autores principales:	Frederik Rask Dalby, Marcell Nikolausz, Michael Jørgen Hansen, Anders Feilberg
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/53db1fdc364d4f04804d31afe3853e48
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spelling	oai:doaj.org-article:53db1fdc364d4f04804d31afe3853e482021-12-02T20:14:13ZEffects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.1932-620310.1371/journal.pone.0257759https://doaj.org/article/53db1fdc364d4f04804d31afe3853e482021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0257759https://doaj.org/toc/1932-6203Livestock manure emits reduced sulfur compounds and methane, which affect nature and the climate. These gases are efficiently mitigated by addition of a tannic acid-sodium fluoride combination inhibitor (TA-NaF), and to some extent by acidification. In this paper, TA-NaF treatment was performed on swine manure to study the treatment influence on methanogenic pathways and sulfur transformation pathways in various laboratory experiments. Stable carbon isotope labeling revealed that both untreated and TA-NaF treated swine manures were dominated by hydrogenotrophic methanogenesis. However, in supplementary experiments in wastewater sludge, TA-NaF clearly inhibited acetoclastic methanogenesis, whereas acidification inhibited hydrogenotrophic methanogenesis. In swine manure, TA-NaF inhibited s-amino acid catabolism to a larger extent than sulfate reduction. Conversely, acidification reduced sulfate reduction activity more than s-amino acid degradation. TA-NaF treatment had no significant effect on methanogenic community structure, which was surprising considering clear effects on isotope ratios of methane and carbon dioxide. Halophile sulfate reducers adapted well to TA-NaF treatment, but the community change also depended on temperature. The combined experimental work resulted in a proposed inhibition scheme for sulfur transformations and methanogenic pathways as affected by TA-NaF and acidification in swine manure and in other inocula.Frederik Rask DalbyMarcell NikolauszMichael Jørgen HansenAnders FeilbergPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 9, p e0257759 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Frederik Rask Dalby Marcell Nikolausz Michael Jørgen Hansen Anders Feilberg Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
description	Livestock manure emits reduced sulfur compounds and methane, which affect nature and the climate. These gases are efficiently mitigated by addition of a tannic acid-sodium fluoride combination inhibitor (TA-NaF), and to some extent by acidification. In this paper, TA-NaF treatment was performed on swine manure to study the treatment influence on methanogenic pathways and sulfur transformation pathways in various laboratory experiments. Stable carbon isotope labeling revealed that both untreated and TA-NaF treated swine manures were dominated by hydrogenotrophic methanogenesis. However, in supplementary experiments in wastewater sludge, TA-NaF clearly inhibited acetoclastic methanogenesis, whereas acidification inhibited hydrogenotrophic methanogenesis. In swine manure, TA-NaF inhibited s-amino acid catabolism to a larger extent than sulfate reduction. Conversely, acidification reduced sulfate reduction activity more than s-amino acid degradation. TA-NaF treatment had no significant effect on methanogenic community structure, which was surprising considering clear effects on isotope ratios of methane and carbon dioxide. Halophile sulfate reducers adapted well to TA-NaF treatment, but the community change also depended on temperature. The combined experimental work resulted in a proposed inhibition scheme for sulfur transformations and methanogenic pathways as affected by TA-NaF and acidification in swine manure and in other inocula.
format	article
author	Frederik Rask Dalby Marcell Nikolausz Michael Jørgen Hansen Anders Feilberg
author_facet	Frederik Rask Dalby Marcell Nikolausz Michael Jørgen Hansen Anders Feilberg
author_sort	Frederik Rask Dalby
title	Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
title_short	Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
title_full	Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
title_fullStr	Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
title_full_unstemmed	Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
title_sort	effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/53db1fdc364d4f04804d31afe3853e48
work_keys_str_mv	AT frederikraskdalby effectsofcombinedtannicacidfluorideonsulfurtransformationsandmethanogenicpathwaysinswinemanure AT marcellnikolausz effectsofcombinedtannicacidfluorideonsulfurtransformationsandmethanogenicpathwaysinswinemanure AT michaeljørgenhansen effectsofcombinedtannicacidfluorideonsulfurtransformationsandmethanogenicpathwaysinswinemanure AT andersfeilberg effectsofcombinedtannicacidfluorideonsulfurtransformationsandmethanogenicpathwaysinswinemanure
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Effects of combined tannic acid/fluoride on sulfur transformations and methanogenic pathways in swine manure.

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