Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis
Anaerobic digestion is the method of wastes treatment aimed at a reduction of their hazardous effects on the biosphere. The mutualistic behavior of various anaerobic microorganisms results in the decomposition of complex organic substances into simple, chemically stabilized compounds, mainly methane...
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/183752 |
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| author | Fayyaz Ali Shah Qaisar Mahmood Mohammad Maroof Shah Arshid Pervez Saeed Ahmad Asad |
| author_facet | Fayyaz Ali Shah Qaisar Mahmood Mohammad Maroof Shah Arshid Pervez Saeed Ahmad Asad |
| author_sort | Fayyaz Ali Shah |
| collection | DOAJ |
| description | Anaerobic digestion is the method of wastes treatment aimed at a reduction of their hazardous effects on the biosphere. The mutualistic behavior of various anaerobic microorganisms results in the decomposition of complex organic substances into simple, chemically stabilized compounds, mainly methane and CO2. The conversions of complex organic compounds to CH4 and CO2 are possible due to the cooperation of four different groups of microorganisms, that is, fermentative, syntrophic, acetogenic, and methanogenic bacteria. Microbes adopt various pathways to evade from the unfavorable conditions in the anaerobic digester like competition between sulfate reducing bacteria (SRB) and methane forming bacteria for the same substrate. Methanosarcina are able to use both acetoclastic and hydrogenotrophic pathways for methane production. This review highlights the cellulosic microorganisms, structure of cellulose, inoculum to substrate ratio, and source of inoculum and its effect on methanogenesis. The molecular techniques such as DGGE (denaturing gradient gel electrophoresis) utilized for dynamic changes in microbial communities and FISH (fluorescent in situ hybridization) that deal with taxonomy and interaction and distribution of tropic groups used are also discussed. |
| format | Article |
| id | doaj-art-4e8559bbacd44c19a3be4aa9d0b65a6a |
| institution | OA Journals |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-4e8559bbacd44c19a3be4aa9d0b65a6a2025-08-20T02:05:36ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/183752183752Microbial Ecology of Anaerobic Digesters: The Key Players of AnaerobiosisFayyaz Ali Shah0Qaisar Mahmood1Mohammad Maroof Shah2Arshid Pervez3Saeed Ahmad Asad4Department of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad 22060, PakistanDepartment of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad 22060, PakistanDepartment of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad 22060, PakistanDepartment of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad 22060, PakistanDepartment of Environmental Sciences, COMSATS Institute of Information Technology, Abbottabad 22060, PakistanAnaerobic digestion is the method of wastes treatment aimed at a reduction of their hazardous effects on the biosphere. The mutualistic behavior of various anaerobic microorganisms results in the decomposition of complex organic substances into simple, chemically stabilized compounds, mainly methane and CO2. The conversions of complex organic compounds to CH4 and CO2 are possible due to the cooperation of four different groups of microorganisms, that is, fermentative, syntrophic, acetogenic, and methanogenic bacteria. Microbes adopt various pathways to evade from the unfavorable conditions in the anaerobic digester like competition between sulfate reducing bacteria (SRB) and methane forming bacteria for the same substrate. Methanosarcina are able to use both acetoclastic and hydrogenotrophic pathways for methane production. This review highlights the cellulosic microorganisms, structure of cellulose, inoculum to substrate ratio, and source of inoculum and its effect on methanogenesis. The molecular techniques such as DGGE (denaturing gradient gel electrophoresis) utilized for dynamic changes in microbial communities and FISH (fluorescent in situ hybridization) that deal with taxonomy and interaction and distribution of tropic groups used are also discussed.http://dx.doi.org/10.1155/2014/183752 |
| spellingShingle | Fayyaz Ali Shah Qaisar Mahmood Mohammad Maroof Shah Arshid Pervez Saeed Ahmad Asad Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis The Scientific World Journal |
| title | Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis |
| title_full | Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis |
| title_fullStr | Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis |
| title_full_unstemmed | Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis |
| title_short | Microbial Ecology of Anaerobic Digesters: The Key Players of Anaerobiosis |
| title_sort | microbial ecology of anaerobic digesters the key players of anaerobiosis |
| url | http://dx.doi.org/10.1155/2014/183752 |
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