Anaerobic production and degradation of volatile fatty acids in low temperature environments
Anaerobic conversion of organic matter leads to the intermediate formation of volatile fatty acids (VFA), primarily butyrate, propionate and acetate. The present investigation examined methanogenesis from the VFA by microbial populations associated with natural and man-made cold habitats. Sites that...
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2000
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Online Access: | https://doi.org/10.2166/wst.2000.0236 |
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fteawag:oai:dora:eawag_8600 2023-05-15T18:40:25+02:00 Anaerobic production and degradation of volatile fatty acids in low temperature environments Nozhevnikova, A.N. Rebak, S. Kotsyurbenko, O.R. Parshina, S.N. Holliger, C. Lettinga, G. 2000 https://doi.org/10.2166/wst.2000.0236 eng eng IWA Publishing Water Science and Technology--Water Sci. Technol.--journals:2971--0273-1223 eawag:8600 journal id: journals:2971 issn: 0273-1223 ut: 000088958500007 local: 5907 scopus: 2-s2.0-0033893569 doi:10.2166/wst.2000.0236 acetate anaerobic degradation anaerobic reactor butyrate low temperature methanogenesis propionate volatile fatty acids Text Journal Article 2000 fteawag https://doi.org/10.2166/wst.2000.0236 2023-04-09T04:48:23Z Anaerobic conversion of organic matter leads to the intermediate formation of volatile fatty acids (VFA), primarily butyrate, propionate and acetate. The present investigation examined methanogenesis from the VFA by microbial populations associated with natural and man-made cold habitats. Sites that were investigated included lake sediments, tundra wetland soil, sludge lagoons, manure store and anaerobic reactors operated at 3-9°C. Sharp increases in methanogenesis from VFA were observed as incubation temperatures were increased to 30°C. Low temperatures resulted in significant methane production, and butyrate was identified as an important VFA intermediate formed and degraded during sample incubations. The addition of butyrate and propionate to samples indicated that butyrate is degraded preferentially over propionate. Dilution of samples and, hence, microbial populations led to the accumulation of acetate and hydrogen when butyrate and propionate were degraded. Thus, at low temperatures, a high density of hydrogen- and acetate-utilizing methanogens is needed for methanogenesis from VFA to occur. An aggregation of proton-reducing acetogenic bacteria and methanogens accelerates this process. Article in Journal/Newspaper Tundra DORA Eawag Water Science and Technology 41 12 39 46 |
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Open Polar |
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language |
English |
topic |
acetate anaerobic degradation anaerobic reactor butyrate low temperature methanogenesis propionate volatile fatty acids |
spellingShingle |
acetate anaerobic degradation anaerobic reactor butyrate low temperature methanogenesis propionate volatile fatty acids Nozhevnikova, A.N. Rebak, S. Kotsyurbenko, O.R. Parshina, S.N. Holliger, C. Lettinga, G. Anaerobic production and degradation of volatile fatty acids in low temperature environments |
topic_facet |
acetate anaerobic degradation anaerobic reactor butyrate low temperature methanogenesis propionate volatile fatty acids |
description |
Anaerobic conversion of organic matter leads to the intermediate formation of volatile fatty acids (VFA), primarily butyrate, propionate and acetate. The present investigation examined methanogenesis from the VFA by microbial populations associated with natural and man-made cold habitats. Sites that were investigated included lake sediments, tundra wetland soil, sludge lagoons, manure store and anaerobic reactors operated at 3-9°C. Sharp increases in methanogenesis from VFA were observed as incubation temperatures were increased to 30°C. Low temperatures resulted in significant methane production, and butyrate was identified as an important VFA intermediate formed and degraded during sample incubations. The addition of butyrate and propionate to samples indicated that butyrate is degraded preferentially over propionate. Dilution of samples and, hence, microbial populations led to the accumulation of acetate and hydrogen when butyrate and propionate were degraded. Thus, at low temperatures, a high density of hydrogen- and acetate-utilizing methanogens is needed for methanogenesis from VFA to occur. An aggregation of proton-reducing acetogenic bacteria and methanogens accelerates this process. |
format |
Article in Journal/Newspaper |
author |
Nozhevnikova, A.N. Rebak, S. Kotsyurbenko, O.R. Parshina, S.N. Holliger, C. Lettinga, G. |
author_facet |
Nozhevnikova, A.N. Rebak, S. Kotsyurbenko, O.R. Parshina, S.N. Holliger, C. Lettinga, G. |
author_sort |
Nozhevnikova, A.N. |
title |
Anaerobic production and degradation of volatile fatty acids in low temperature environments |
title_short |
Anaerobic production and degradation of volatile fatty acids in low temperature environments |
title_full |
Anaerobic production and degradation of volatile fatty acids in low temperature environments |
title_fullStr |
Anaerobic production and degradation of volatile fatty acids in low temperature environments |
title_full_unstemmed |
Anaerobic production and degradation of volatile fatty acids in low temperature environments |
title_sort |
anaerobic production and degradation of volatile fatty acids in low temperature environments |
publisher |
IWA Publishing |
publishDate |
2000 |
url |
https://doi.org/10.2166/wst.2000.0236 |
genre |
Tundra |
genre_facet |
Tundra |
op_relation |
Water Science and Technology--Water Sci. Technol.--journals:2971--0273-1223 eawag:8600 journal id: journals:2971 issn: 0273-1223 ut: 000088958500007 local: 5907 scopus: 2-s2.0-0033893569 doi:10.2166/wst.2000.0236 |
op_doi |
https://doi.org/10.2166/wst.2000.0236 |
container_title |
Water Science and Technology |
container_volume |
41 |
container_issue |
12 |
container_start_page |
39 |
op_container_end_page |
46 |
_version_ |
1766229766606684160 |