Long Chain Fatty Acid Degradation Coupled to Biological Sulfidogenesis: A Prospect for Enhanced Metal Recovery

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Autor(es): dc.contributorNatl Univ Ireland Galway-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorFlorentino, Anna Patricya-
Autor(es): dc.creatorCosta, Rachel Biancalana [UNESP]-
Autor(es): dc.creatorHu, Yuansheng-
Autor(es): dc.creatorO'Flaherty, Vincent-
Autor(es): dc.creatorLens, Piet N. L.-
Data de aceite: dc.date.accessioned2022-02-22T00:57:07Z-
Data de disponibilização: dc.date.available2022-02-22T00:57:07Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-10-22-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3389/fbioe.2020.550253-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209619-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209619-
Descrição: dc.descriptionThis research assessed the microbiological suitability of oleate degradation coupled to sulfidogenesis by enriching communities from anaerobic sludge treating dairy products with S-0, SO32-, SO42-, and S2O32- as electron acceptors. The limiting factor hampering highly efficient oleate degradation was investigated in batch reactors. The best sulfidogenic performance coupled to specialization of the enriched bacterial community was obtained for S-0- and S2O32--reducing enrichments, with 15.6 (+/- 0.2) and 9.0 (+/- 0.0) mM of sulfide production, respectively. Microbial community analyses revealed predominance of Enterobacteraceae (50.6 +/- 5.7%), Sulfurospirillum (23.1 +/- 0.1%), Bacteroides (7.5 +/- 1.5%) and Seleniivibrio (6.9 +/- 1.1%) in S-0-reducing cultures. In S(2)O32--reducing enrichments, the genus Desulfurella predominated (49.2 +/- 1.2%), followed by the Enterobacterales order (20.9 +/- 2.3%). S-0-reducing cultures were not affected by oleate concentrations up to 5 mM, while S2O32--reducing cultures could degrade oleate in concentrations up to 10 mM, with no significant impact on sulfidogenesis. In sequencing batch reactors operated with sulfide stripping, the S-0-reducing enrichment produced 145.8 mM sulfide, precipitating Zn as ZnS in a separate tank. The S2O32- fed bioreactor only produced 23.4 mM of sulfide precipitated as ZnS. The lower sulfide production likely happened due to sulfite toxicity, an intermediate of thiosulfate reduction. Therefore, elemental sulfur reduction represents an excellent alternative to the currently adopted approaches for LCFA degradation. To the best of our knowledge, this is the first report of oleate degradation with the flux of electrons totally diverted toward sulfide production for metal precipitation, showing great efficiency of LCFA degradation coupled to high levels of metals precipitated as metal sulfide.-
Descrição: dc.descriptionScience Foundation Ireland Research Professorship Innovative Energy Technologies for Biofuels, Bioenergy and a Sustainable Irish Bioeconomy [IETSBIO3]-
Descrição: dc.descriptionResearch Infrastructure research grant Platform for Biofuel Analysis-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionNatl Univ Ireland Galway, Sch Nat Sci, Dept Microbiol, Galway, Ireland-
Descrição: dc.descriptionNatl Univ Ireland Galway, Ryan Inst, Galway, Ireland-
Descrição: dc.descriptionSao Paulo State Univ, Inst Chem, Dept Biochem & Organ Chem, Araraquara, SP, Brazil-
Descrição: dc.descriptionNatl Univ Ireland Galway, Coll Sci & Engn, Sch Engn, Dept Civil Engn, Galway, Ireland-
Descrição: dc.descriptionSao Paulo State Univ, Inst Chem, Dept Biochem & Organ Chem, Araraquara, SP, Brazil-
Descrição: dc.descriptionScience Foundation Ireland Research Professorship Innovative Energy Technologies for Biofuels, Bioenergy and a Sustainable Irish Bioeconomy [IETSBIO3]: 15/RP/2763-
Descrição: dc.descriptionResearch Infrastructure research grant Platform for Biofuel Analysis: 16/RI/3401-
Descrição: dc.descriptionFAPESP: 18/01524-7-
Formato: dc.format14-
Idioma: dc.languageen-
Publicador: dc.publisherFrontiers Media Sa-
Relação: dc.relationFrontiers In Bioengineering And Biotechnology-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectsulfidogenesis-
Palavras-chave: dc.subjectlong chain fatty acid-
Palavras-chave: dc.subjectbeta-oxidation-
Palavras-chave: dc.subjectmetal precipitation-
Palavras-chave: dc.subjectoleate toxicity-
Título: dc.titleLong Chain Fatty Acid Degradation Coupled to Biological Sulfidogenesis: A Prospect for Enhanced Metal Recovery-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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