Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium
A novel bacterial consortium, NAR-2 which consists of Citrobacter freundii A1, Enterococcus casseliflavus C1 and Enterobacter cloacae L17 was investigated for biodegradation of Amaranth azo dye under sequential microaerophilic–aerobic condition. The NAR-2 bacterial consortium with E. casseliflavus C...
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Online Access: | http://eprints.utm.my/id/eprint/46702/1/G.F.Chan_2012_Communal%20microaerophilic%E2%80%93aerobic%20biodegradation%20of%20Amaranth%20by%20novel%20NAR-2%20bacterial%20consortium.pdf http://eprints.utm.my/id/eprint/46702/ http://dx.doi.org/10.1016/j.biortech.2011.11.094 https://doi.org/10.1016/j.biortech.2011.11.094 |
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my.utm.467022017-09-18T04:22:44Z http://eprints.utm.my/id/eprint/46702/ Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium Chan, Giek Far Abdul Rashid, Noor Aini Chua, Lee Suan Ab.llah, Norzarini Nasiri, Rozita Mohamad Ikubar, Mohamed Roslan TP Chemical technology A novel bacterial consortium, NAR-2 which consists of Citrobacter freundii A1, Enterococcus casseliflavus C1 and Enterobacter cloacae L17 was investigated for biodegradation of Amaranth azo dye under sequential microaerophilic–aerobic condition. The NAR-2 bacterial consortium with E. casseliflavus C1 as the dominant strain enhanced the decolorization process resulting in reduction of Amaranth in 30 min. Further aerobic biodegradation, which was dominated by C. freundii A1 and E. cloacae L17, allowed biotransformation of azo reduction intermediates and mineralization via metabolic pathways including benzoyl-CoA, protocatechuate, salicylate, gentisate, catechol and cinnamic acid. The presence of autoxidation products which could be metabolized to 2-oxopentenoate was elucidated. The biodegradation mechanism of Amaranth by NAR-2 bacterial consortium was predicted to follow the steps of azo reduction, deamination, desulfonation and aromatic ring cleavage. This is for the first time the comprehensive microaerophilic–aerobic biotransformation pathways of Amaranth dye intermediates by bacterial consortium are being proposed. 2012 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/46702/1/G.F.Chan_2012_Communal%20microaerophilic%E2%80%93aerobic%20biodegradation%20of%20Amaranth%20by%20novel%20NAR-2%20bacterial%20consortium.pdf Chan, Giek Far and Abdul Rashid, Noor Aini and Chua, Lee Suan and Ab.llah, Norzarini and Nasiri, Rozita and Mohamad Ikubar, Mohamed Roslan (2012) Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium. Bioresource Technology, 105 . pp. 48-59. ISSN 0960-8524 http://dx.doi.org/10.1016/j.biortech.2011.11.094 https://doi.org/10.1016/j.biortech.2011.11.094 |
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TP Chemical technology Chan, Giek Far Abdul Rashid, Noor Aini Chua, Lee Suan Ab.llah, Norzarini Nasiri, Rozita Mohamad Ikubar, Mohamed Roslan Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium |
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A novel bacterial consortium, NAR-2 which consists of Citrobacter freundii A1, Enterococcus casseliflavus C1 and Enterobacter cloacae L17 was investigated for biodegradation of Amaranth azo dye under sequential microaerophilic–aerobic condition. The NAR-2 bacterial consortium with E. casseliflavus C1 as the dominant strain enhanced the decolorization process resulting in reduction of Amaranth in 30 min. Further aerobic biodegradation, which was dominated by C. freundii A1 and E. cloacae L17, allowed biotransformation of azo reduction intermediates and mineralization via metabolic pathways including benzoyl-CoA, protocatechuate, salicylate, gentisate, catechol and cinnamic acid. The presence of autoxidation products which could be metabolized to 2-oxopentenoate was elucidated. The biodegradation mechanism of Amaranth by NAR-2 bacterial consortium was predicted to follow the steps of azo reduction, deamination, desulfonation and aromatic ring cleavage. This is for the first time the comprehensive microaerophilic–aerobic biotransformation pathways of Amaranth dye intermediates by bacterial consortium are being proposed. |
format |
Article |
author |
Chan, Giek Far Abdul Rashid, Noor Aini Chua, Lee Suan Ab.llah, Norzarini Nasiri, Rozita Mohamad Ikubar, Mohamed Roslan |
author_facet |
Chan, Giek Far Abdul Rashid, Noor Aini Chua, Lee Suan Ab.llah, Norzarini Nasiri, Rozita Mohamad Ikubar, Mohamed Roslan |
author_sort |
Chan, Giek Far |
title |
Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium |
title_short |
Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium |
title_full |
Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium |
title_fullStr |
Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium |
title_full_unstemmed |
Communal microaerophilic-aerobic biodegradation of amaranth by novel NAR-2 bacterial consortium |
title_sort |
communal microaerophilic-aerobic biodegradation of amaranth by novel nar-2 bacterial consortium |
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2012 |
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http://eprints.utm.my/id/eprint/46702/1/G.F.Chan_2012_Communal%20microaerophilic%E2%80%93aerobic%20biodegradation%20of%20Amaranth%20by%20novel%20NAR-2%20bacterial%20consortium.pdf http://eprints.utm.my/id/eprint/46702/ http://dx.doi.org/10.1016/j.biortech.2011.11.094 https://doi.org/10.1016/j.biortech.2011.11.094 |
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1643652113987796992 |
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13.160551 |