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Influence of cystei...
Influence of cysteine, serine, sulfate, and sulfide on anaerobic conversion of unsaturated long-chain fatty acid, oleate, to methane
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- Shakeri Yekta, Sepehr (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Elreedy, Ahmed (författare)
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Tokyo, Japan; Institute of Technical Microbiology, Hamburg University of Technology, Hamburg, Germany,Tokyo Inst Technol, Japan; Hamburg Univ Technol, Germany
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- Liu, Tong (författare)
- Linköpings universitet,Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences,Linkoping University,Biogas Solutions Research Center,Tekniska fakulteten,Swedish Univ Agr Sci, Sweden
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- Hedenström, Mattias, 1976- (författare)
- Umeå universitet,Kemiska institutionen,Umea Univ, Sweden
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- Isaksson, Simon (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences,Swedish Univ Agr Sci, Sweden
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- Fujii, Manabu (författare)
- Department of Civil and Environmental Engineering, Tokyo Institute of Technology, Tokyo, Japan,Tokyo Inst Technol, Japan
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- Schnürer, Anna (författare)
- Linköpings universitet,Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences,Linkoping University,Biogas Solutions Research Center,Tekniska fakulteten,Swedish Univ Agr Sci, Sweden
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(creator_code:org_t)
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- Elsevier, 2022
- 2022
- Engelska.
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Ingår i: Science of the Total Environment. - : Elsevier. - 0048-9697 .- 1879-1026. ; 817
- Relaterad länk:
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https://doi.org/10.1...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- This study aims to elucidate the role of sulfide and its precursors in anaerobic digestion (i.e., cysteine, representing sulfur-containing amino acids, and sulfate) on microbial oleate conversion to methane. Serine, with a similar structure to cysteine but with a hydroxyl group instead of a thiol, was included as a control to assess potential effects on methane formation that were not related to sulfur functionalities. The results showed that copresence of sulfide and oleate in anaerobic batch assays accelerated the methane formation compared to assays with only oleate and mitigated negative effect on methane formation caused by increased sulfide level. Nuclear magnetic resonance spectroscopy of sulfide-exposed oleate suggested that sulfide reaction with oleate double bonds likely contributed to negation of the negative effect on the methanogenic activity. Methane formation from oleate was also accelerated in the presence of cysteine or serine, while sulfate decreased the cumulative methane formation from oleate. Neither cysteine nor serine was converted to methane, and their accelerating effects was associated to different mechanisms due to establishment of microbial communities with different structures, as evidenced by high-throughput sequencing of 16S rRNA gene. These outcomes contribute with new knowledge to develop strategies for optimum use of sulfur- and lipid-rich wastes in anaerobic digestion processes.
Ämnesord
- NATURVETENSKAP -- Kemi -- Fysikalisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Physical Chemistry (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- Amino acids
- Anaerobic digestion
- Methane
- Oleate
- Sulfur
- β-Oxidation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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