Efficient biodegradation of chlorophenols in aqueous phase by magnetically immobilized aniline-degrading Rhodococcus rhodochrous strain
Chlorophenols are environmental contaminants, which are highly toxic to living beings due to their carcinogenic, mutagenic and cytotoxic properties. Bacterial degradation has been considered a cost-effective and eco-friendly method of removing chlorophenols, compared to the traditional physical-chem...
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| Veröffentlicht in: | Journal of nanobiotechnology 2016-01, Vol.14 (5), p.5, Article 5 |
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| creator | Hou, Jianfeng Liu, Feixia Wu, Nan Ju, Jiansong Yu, Bo |
| description | Chlorophenols are environmental contaminants, which are highly toxic to living beings due to their carcinogenic, mutagenic and cytotoxic properties. Bacterial degradation has been considered a cost-effective and eco-friendly method of removing chlorophenols, compared to the traditional physical-chemical processes.
In this study, we first developed an efficient process for the biodegradation of chlorophenols by magnetically immobilized Rhodococcus rhodochrous cells. R. rhodochrous DSM6263 degrades chlorophenols following the first step of hydroxylation at the ortho-positions of chlorophenolic rings. The cells immobilized by k-carrageenan with 9 g/L Fe3O4 nanoparticles could efficiently degrade 2-chlorophenol, 4-chlorophenol, 2,3-dichlorophenol and their mixture, which were even higher than those by free cells. The magnetically nanoparticle-immobilized cells could be used at least for six cycles.
Given the much easier separation by an external magnetic field and high degradation efficiency, this study provides a promising technique for improving biocatalysts used in the bioremediation process for chlorophenols in wastewater. |
| doi_str_mv | 10.1186/s12951-016-0158-0 |
| format | Article |
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In this study, we first developed an efficient process for the biodegradation of chlorophenols by magnetically immobilized Rhodococcus rhodochrous cells. R. rhodochrous DSM6263 degrades chlorophenols following the first step of hydroxylation at the ortho-positions of chlorophenolic rings. The cells immobilized by k-carrageenan with 9 g/L Fe3O4 nanoparticles could efficiently degrade 2-chlorophenol, 4-chlorophenol, 2,3-dichlorophenol and their mixture, which were even higher than those by free cells. The magnetically nanoparticle-immobilized cells could be used at least for six cycles.
Given the much easier separation by an external magnetic field and high degradation efficiency, this study provides a promising technique for improving biocatalysts used in the bioremediation process for chlorophenols in wastewater.</description><identifier>ISSN: 1477-3155</identifier><identifier>EISSN: 1477-3155</identifier><identifier>DOI: 10.1186/s12951-016-0158-0</identifier><identifier>PMID: 26772816</identifier><language>eng</language><publisher>England: BioMed Central Ltd</publisher><subject>Aniline Compounds - chemistry ; Biodegradation ; Biodegradation, Environmental ; Bioremediation ; Carrageenan - chemistry ; Chlorophenols - chemistry ; Genetic aspects ; Hydroxylation ; Magnetics - methods ; Magnetite Nanoparticles - chemistry ; Rhodococcus - chemistry ; Waste Water - chemistry</subject><ispartof>Journal of nanobiotechnology, 2016-01, Vol.14 (5), p.5, Article 5</ispartof><rights>COPYRIGHT 2016 BioMed Central Ltd.</rights><rights>Hou et al. 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c500t-b7eec39f376ccfb2d6a245ccd52bdbb9dac58fdc19597269749a7421e7e0871a3</citedby><cites>FETCH-LOGICAL-c500t-b7eec39f376ccfb2d6a245ccd52bdbb9dac58fdc19597269749a7421e7e0871a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4715327/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC4715327/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,860,881,27901,27902,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/26772816$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hou, Jianfeng</creatorcontrib><creatorcontrib>Liu, Feixia</creatorcontrib><creatorcontrib>Wu, Nan</creatorcontrib><creatorcontrib>Ju, Jiansong</creatorcontrib><creatorcontrib>Yu, Bo</creatorcontrib><title>Efficient biodegradation of chlorophenols in aqueous phase by magnetically immobilized aniline-degrading Rhodococcus rhodochrous strain</title><title>Journal of nanobiotechnology</title><addtitle>J Nanobiotechnology</addtitle><description>Chlorophenols are environmental contaminants, which are highly toxic to living beings due to their carcinogenic, mutagenic and cytotoxic properties. Bacterial degradation has been considered a cost-effective and eco-friendly method of removing chlorophenols, compared to the traditional physical-chemical processes.
In this study, we first developed an efficient process for the biodegradation of chlorophenols by magnetically immobilized Rhodococcus rhodochrous cells. R. rhodochrous DSM6263 degrades chlorophenols following the first step of hydroxylation at the ortho-positions of chlorophenolic rings. The cells immobilized by k-carrageenan with 9 g/L Fe3O4 nanoparticles could efficiently degrade 2-chlorophenol, 4-chlorophenol, 2,3-dichlorophenol and their mixture, which were even higher than those by free cells. The magnetically nanoparticle-immobilized cells could be used at least for six cycles.
Given the much easier separation by an external magnetic field and high degradation efficiency, this study provides a promising technique for improving biocatalysts used in the bioremediation process for chlorophenols in wastewater.</description><subject>Aniline Compounds - chemistry</subject><subject>Biodegradation</subject><subject>Biodegradation, Environmental</subject><subject>Bioremediation</subject><subject>Carrageenan - chemistry</subject><subject>Chlorophenols - chemistry</subject><subject>Genetic aspects</subject><subject>Hydroxylation</subject><subject>Magnetics - methods</subject><subject>Magnetite Nanoparticles - chemistry</subject><subject>Rhodococcus - chemistry</subject><subject>Waste Water - chemistry</subject><issn>1477-3155</issn><issn>1477-3155</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNptklFrFDEUhQdRbK3-AF8k4JMPU5NMMpl5EUqpWigIVZ9D5uZmJjKTrMlscf0D_m2zrpYuSAg5JN855MKpqpeMnjPWtW8z471kNWVt2bKr6aPqlAml6oZJ-fiBPqme5fyNUs4FF0-rE94qxTvWnla_rpzz4DGsZPDR4piMNauPgURHYJpjipsJQ5wz8YGY71uM20w2k8lIhh1ZzBhw9WDmeUf8ssTBz_4nWmJCEQHrQ6IPI7mdoo0QAYo__dFT2mflNRkfnldPnJkzvvh7nlVf3199ufxY33z6cH15cVODpHStB4UITe8a1QK4gdvWcCEBrOSDHYbeGpCds8B62Sve9kr0RgnOUCHtFDPNWfXukLvZDgtaKIMnM-tN8otJOx2N18cvwU96jHdaKCYbrkrA60PAaGbUPrhYMFh8Bn0hBOu4oqIv1Pl_qLIsLh5iQOfL_ZHhzZGhMCv-WEezzVlff749ZtmBhRRzTujuv8-o3hdDH4qhSzH0vhiaFs-rh3PfO_41ofkNit-30Q</recordid><startdate>20160116</startdate><enddate>20160116</enddate><creator>Hou, Jianfeng</creator><creator>Liu, Feixia</creator><creator>Wu, Nan</creator><creator>Ju, Jiansong</creator><creator>Yu, Bo</creator><general>BioMed Central Ltd</general><general>BioMed Central</general><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>ISR</scope><scope>5PM</scope></search><sort><creationdate>20160116</creationdate><title>Efficient biodegradation of chlorophenols in aqueous phase by magnetically immobilized aniline-degrading Rhodococcus rhodochrous strain</title><author>Hou, Jianfeng ; Liu, Feixia ; Wu, Nan ; Ju, Jiansong ; Yu, Bo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c500t-b7eec39f376ccfb2d6a245ccd52bdbb9dac58fdc19597269749a7421e7e0871a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Aniline Compounds - chemistry</topic><topic>Biodegradation</topic><topic>Biodegradation, Environmental</topic><topic>Bioremediation</topic><topic>Carrageenan - chemistry</topic><topic>Chlorophenols - chemistry</topic><topic>Genetic aspects</topic><topic>Hydroxylation</topic><topic>Magnetics - methods</topic><topic>Magnetite Nanoparticles - chemistry</topic><topic>Rhodococcus - chemistry</topic><topic>Waste Water - chemistry</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hou, Jianfeng</creatorcontrib><creatorcontrib>Liu, Feixia</creatorcontrib><creatorcontrib>Wu, Nan</creatorcontrib><creatorcontrib>Ju, Jiansong</creatorcontrib><creatorcontrib>Yu, Bo</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Gale In Context: Science</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Journal of nanobiotechnology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hou, Jianfeng</au><au>Liu, Feixia</au><au>Wu, Nan</au><au>Ju, Jiansong</au><au>Yu, Bo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Efficient biodegradation of chlorophenols in aqueous phase by magnetically immobilized aniline-degrading Rhodococcus rhodochrous strain</atitle><jtitle>Journal of nanobiotechnology</jtitle><addtitle>J Nanobiotechnology</addtitle><date>2016-01-16</date><risdate>2016</risdate><volume>14</volume><issue>5</issue><spage>5</spage><pages>5-</pages><artnum>5</artnum><issn>1477-3155</issn><eissn>1477-3155</eissn><abstract>Chlorophenols are environmental contaminants, which are highly toxic to living beings due to their carcinogenic, mutagenic and cytotoxic properties. Bacterial degradation has been considered a cost-effective and eco-friendly method of removing chlorophenols, compared to the traditional physical-chemical processes.
In this study, we first developed an efficient process for the biodegradation of chlorophenols by magnetically immobilized Rhodococcus rhodochrous cells. R. rhodochrous DSM6263 degrades chlorophenols following the first step of hydroxylation at the ortho-positions of chlorophenolic rings. The cells immobilized by k-carrageenan with 9 g/L Fe3O4 nanoparticles could efficiently degrade 2-chlorophenol, 4-chlorophenol, 2,3-dichlorophenol and their mixture, which were even higher than those by free cells. The magnetically nanoparticle-immobilized cells could be used at least for six cycles.
Given the much easier separation by an external magnetic field and high degradation efficiency, this study provides a promising technique for improving biocatalysts used in the bioremediation process for chlorophenols in wastewater.</abstract><cop>England</cop><pub>BioMed Central Ltd</pub><pmid>26772816</pmid><doi>10.1186/s12951-016-0158-0</doi><oa>free_for_read</oa></addata></record> |
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| subjects | Aniline Compounds - chemistry Biodegradation Biodegradation, Environmental Bioremediation Carrageenan - chemistry Chlorophenols - chemistry Genetic aspects Hydroxylation Magnetics - methods Magnetite Nanoparticles - chemistry Rhodococcus - chemistry Waste Water - chemistry |
| title | Efficient biodegradation of chlorophenols in aqueous phase by magnetically immobilized aniline-degrading Rhodococcus rhodochrous strain |
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