Microbial community structure reveals how microaeration improves fermentation during anaerobic co-digestion of brown water and food waste
[Display omitted] •Microaeration gave rise to a significantly more diverse bacterial population.•Higher proportion of clones affiliated to Firmicutes in microaeration reactor.•Microaeration led to a shift in fermentation production pattern.•Microaeration enhanced fermentation during co-digestion of...
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| Veröffentlicht in: | Bioresource technology 2014-11, Vol.171, p.132-138 |
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| creator | Lim, Jun Wei Chiam, Jun An Wang, Jing-Yuan |
| description | [Display omitted]
•Microaeration gave rise to a significantly more diverse bacterial population.•Higher proportion of clones affiliated to Firmicutes in microaeration reactor.•Microaeration led to a shift in fermentation production pattern.•Microaeration enhanced fermentation during co-digestion of BW and FW.
The purpose of this study was to investigate the impact of microaeration on the fermentation process during anaerobic co-digestion of brown water (BW) and food waste (FW). This was achieved by daily monitoring of reactor performance and the determination of its bacterial consortium towards the end of the study. Molecular cloning and sequencing results revealed that bacteria within phyla Firmicutes and Bacteriodetes represented the dominant phylogenetic group. As compared to anaerobic conditions, the fermentation of BW and FW under microaeration conditions gave rise to a significantly more diverse bacterial population and higher proportion of bacterial clones affiliated to the phylum Firmicutes. The acidogenic reactor was therefore able to metabolize a greater variety of substrates leading to higher hydrolysis rates as compared to the anaerobic reactor. Other than enhanced fermentation, microaeration also led to a shift in fermentation production pattern where acetic acid was metabolized for the synthesis of butyric acid. |
| doi_str_mv | 10.1016/j.biortech.2014.08.050 |
| format | Article |
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•Microaeration gave rise to a significantly more diverse bacterial population.•Higher proportion of clones affiliated to Firmicutes in microaeration reactor.•Microaeration led to a shift in fermentation production pattern.•Microaeration enhanced fermentation during co-digestion of BW and FW.
The purpose of this study was to investigate the impact of microaeration on the fermentation process during anaerobic co-digestion of brown water (BW) and food waste (FW). This was achieved by daily monitoring of reactor performance and the determination of its bacterial consortium towards the end of the study. Molecular cloning and sequencing results revealed that bacteria within phyla Firmicutes and Bacteriodetes represented the dominant phylogenetic group. As compared to anaerobic conditions, the fermentation of BW and FW under microaeration conditions gave rise to a significantly more diverse bacterial population and higher proportion of bacterial clones affiliated to the phylum Firmicutes. The acidogenic reactor was therefore able to metabolize a greater variety of substrates leading to higher hydrolysis rates as compared to the anaerobic reactor. Other than enhanced fermentation, microaeration also led to a shift in fermentation production pattern where acetic acid was metabolized for the synthesis of butyric acid.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2014.08.050</identifier><identifier>PMID: 25194261</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Aerobiosis ; Air ; Anaerobiosis ; Bacterial community structure ; Bacteroidetes - metabolism ; Base Sequence ; Biodiversity ; Biological and medical sciences ; Biological treatment of sewage sludges and wastes ; Biotechnology ; Brown water ; Cloning, Molecular ; Environment and pollution ; Fermentation ; Food ; Food industries ; Food waste ; Fundamental and applied biological sciences. Psychology ; Gram-Positive Bacteria - metabolism ; Industrial applications and implications. Economical aspects ; Methods. Procedures. Technologies ; Microaeration ; Microbial engineering. Fermentation and microbial culture technology ; Molecular Sequence Data ; Refuse Disposal - methods ; Sequence Analysis, DNA ; Use and upgrading of agricultural and food by-products. Biotechnology ; Waste Products</subject><ispartof>Bioresource technology, 2014-11, Vol.171, p.132-138</ispartof><rights>2014 Elsevier Ltd</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2014 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-fa127513e2769c51f27edb5cf0c7ddca7c243cf5652613b2169dd9580fe169fd3</citedby><cites>FETCH-LOGICAL-c464t-fa127513e2769c51f27edb5cf0c7ddca7c243cf5652613b2169dd9580fe169fd3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.biortech.2014.08.050$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28833506$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/25194261$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lim, Jun Wei</creatorcontrib><creatorcontrib>Chiam, Jun An</creatorcontrib><creatorcontrib>Wang, Jing-Yuan</creatorcontrib><title>Microbial community structure reveals how microaeration improves fermentation during anaerobic co-digestion of brown water and food waste</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>[Display omitted]
•Microaeration gave rise to a significantly more diverse bacterial population.•Higher proportion of clones affiliated to Firmicutes in microaeration reactor.•Microaeration led to a shift in fermentation production pattern.•Microaeration enhanced fermentation during co-digestion of BW and FW.
The purpose of this study was to investigate the impact of microaeration on the fermentation process during anaerobic co-digestion of brown water (BW) and food waste (FW). This was achieved by daily monitoring of reactor performance and the determination of its bacterial consortium towards the end of the study. Molecular cloning and sequencing results revealed that bacteria within phyla Firmicutes and Bacteriodetes represented the dominant phylogenetic group. As compared to anaerobic conditions, the fermentation of BW and FW under microaeration conditions gave rise to a significantly more diverse bacterial population and higher proportion of bacterial clones affiliated to the phylum Firmicutes. The acidogenic reactor was therefore able to metabolize a greater variety of substrates leading to higher hydrolysis rates as compared to the anaerobic reactor. Other than enhanced fermentation, microaeration also led to a shift in fermentation production pattern where acetic acid was metabolized for the synthesis of butyric acid.</description><subject>Aerobiosis</subject><subject>Air</subject><subject>Anaerobiosis</subject><subject>Bacterial community structure</subject><subject>Bacteroidetes - metabolism</subject><subject>Base Sequence</subject><subject>Biodiversity</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Biotechnology</subject><subject>Brown water</subject><subject>Cloning, Molecular</subject><subject>Environment and pollution</subject><subject>Fermentation</subject><subject>Food</subject><subject>Food industries</subject><subject>Food waste</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gram-Positive Bacteria - metabolism</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Methods. Procedures. Technologies</subject><subject>Microaeration</subject><subject>Microbial engineering. Fermentation and microbial culture technology</subject><subject>Molecular Sequence Data</subject><subject>Refuse Disposal - methods</subject><subject>Sequence Analysis, DNA</subject><subject>Use and upgrading of agricultural and food by-products. Biotechnology</subject><subject>Waste Products</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkctu1DAUhi1ERYfCK1TeILFJsJ3YSXagihakIjZlbTn2cetREhfbmVEfgbfmDDOFJRtfv_Ofy0_IJWc1Z1x92NZjiKmAfagF423N-ppJ9oJseN81lRg69ZJs2KBY1UvRnpPXOW8ZYw3vxCtyLiQfWqH4hvz6FmyKYzATtXGe1yWUJ5pLWm1ZE9AEOzBTpg9xT-cDaSCZEuJCw_yY4g4y9ZBmWMrx1a0pLPfULMihqkXRyoV7yH9-o6djivuF7k2BhJSjPkaH11zgDTnzmArenvYL8uP6893Vl-r2-83Xq0-3lW1VWypvuOgkb0B0arCSe9GBG6X1zHbOWdNZ0TbWSyWxv2YUXA3ODbJnHvDoXXNB3h91sf6fK1am55AtTJNZIK5Zc6lUL3AdEFVHFBvPOYHXjynMJj1pzvTBBr3Vzzbogw2a9RptwMDLU451nMH9DXueOwLvToDJ1kw-mcWG_I_r-6aRTCH38cgBTmQXIOlsAywWXEhgi3Yx_K-W39bRrY0</recordid><startdate>20141101</startdate><enddate>20141101</enddate><creator>Lim, Jun Wei</creator><creator>Chiam, Jun An</creator><creator>Wang, Jing-Yuan</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20141101</creationdate><title>Microbial community structure reveals how microaeration improves fermentation during anaerobic co-digestion of brown water and food waste</title><author>Lim, Jun Wei ; Chiam, Jun An ; Wang, Jing-Yuan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-fa127513e2769c51f27edb5cf0c7ddca7c243cf5652613b2169dd9580fe169fd3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Aerobiosis</topic><topic>Air</topic><topic>Anaerobiosis</topic><topic>Bacterial community structure</topic><topic>Bacteroidetes - metabolism</topic><topic>Base Sequence</topic><topic>Biodiversity</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of sewage sludges and wastes</topic><topic>Biotechnology</topic><topic>Brown water</topic><topic>Cloning, Molecular</topic><topic>Environment and pollution</topic><topic>Fermentation</topic><topic>Food</topic><topic>Food industries</topic><topic>Food waste</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gram-Positive Bacteria - metabolism</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Methods. Procedures. Technologies</topic><topic>Microaeration</topic><topic>Microbial engineering. Fermentation and microbial culture technology</topic><topic>Molecular Sequence Data</topic><topic>Refuse Disposal - methods</topic><topic>Sequence Analysis, DNA</topic><topic>Use and upgrading of agricultural and food by-products. Biotechnology</topic><topic>Waste Products</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lim, Jun Wei</creatorcontrib><creatorcontrib>Chiam, Jun An</creatorcontrib><creatorcontrib>Wang, Jing-Yuan</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lim, Jun Wei</au><au>Chiam, Jun An</au><au>Wang, Jing-Yuan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Microbial community structure reveals how microaeration improves fermentation during anaerobic co-digestion of brown water and food waste</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2014-11-01</date><risdate>2014</risdate><volume>171</volume><spage>132</spage><epage>138</epage><pages>132-138</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>[Display omitted]
•Microaeration gave rise to a significantly more diverse bacterial population.•Higher proportion of clones affiliated to Firmicutes in microaeration reactor.•Microaeration led to a shift in fermentation production pattern.•Microaeration enhanced fermentation during co-digestion of BW and FW.
The purpose of this study was to investigate the impact of microaeration on the fermentation process during anaerobic co-digestion of brown water (BW) and food waste (FW). This was achieved by daily monitoring of reactor performance and the determination of its bacterial consortium towards the end of the study. Molecular cloning and sequencing results revealed that bacteria within phyla Firmicutes and Bacteriodetes represented the dominant phylogenetic group. As compared to anaerobic conditions, the fermentation of BW and FW under microaeration conditions gave rise to a significantly more diverse bacterial population and higher proportion of bacterial clones affiliated to the phylum Firmicutes. The acidogenic reactor was therefore able to metabolize a greater variety of substrates leading to higher hydrolysis rates as compared to the anaerobic reactor. Other than enhanced fermentation, microaeration also led to a shift in fermentation production pattern where acetic acid was metabolized for the synthesis of butyric acid.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>25194261</pmid><doi>10.1016/j.biortech.2014.08.050</doi><tpages>7</tpages></addata></record> |
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| subjects | Aerobiosis Air Anaerobiosis Bacterial community structure Bacteroidetes - metabolism Base Sequence Biodiversity Biological and medical sciences Biological treatment of sewage sludges and wastes Biotechnology Brown water Cloning, Molecular Environment and pollution Fermentation Food Food industries Food waste Fundamental and applied biological sciences. Psychology Gram-Positive Bacteria - metabolism Industrial applications and implications. Economical aspects Methods. Procedures. Technologies Microaeration Microbial engineering. Fermentation and microbial culture technology Molecular Sequence Data Refuse Disposal - methods Sequence Analysis, DNA Use and upgrading of agricultural and food by-products. Biotechnology Waste Products |
| title | Microbial community structure reveals how microaeration improves fermentation during anaerobic co-digestion of brown water and food waste |
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