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Luo L, He H, Yang C, Wen S, Zeng G, Wu M, Zhou Z, Lou W. Nutrient removal and lipid production by Coelastrella sp. in anaerobically and aerobically treated swine wastewater. BIORESOURCE TECHNOLOGY 2016; 216:203-10. [PMID: 27236400 DOI: 10.1016/j.biortech.2016.05.077] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 05/18/2016] [Accepted: 05/19/2016] [Indexed: 05/07/2023]
Abstract
Coelastrella sp. QY01, a microalgae species isolated from a local pond, was identified and used for the treatment of anaerobically and aerobically treated swine wastewater (AnATSW). Microalgal growth characteristics, nutrient removal and lipid accumulation of QY01 cultivated in the initial concentration of AnATSW ranged from 63 to 319mg NH3-N/L were examined. The specific growth rate of QY01 cultivated in cultures ranged from 0.269 to 0.325day(-1) with a biomass productivity from 42.77 to 57.46mgL(-1)day(-1). Removal rates for NH3-N, TP and inorganic carbon in AnATSW at the various nutrient concentrations ranged from 90% to 100%, from 90% to 100% and from 74% to 78%, respectively. The lipid content of QY01 ranged from 22.4% to 24.8%. The lipid productivity was positive correlation with the biomass productivity. 40% AnATSW was optimal for QY01 cultivation, in which nutrient removal and productivity of biomass and lipid were maximized.
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Affiliation(s)
- Le Luo
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Huijun He
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Chunping Yang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Shan Wen
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Mengjie Wu
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Zili Zhou
- Hunan Hikee Environmental Technology Co., Ltd., Changsha 410001, PR China
| | - Wei Lou
- Hunan Hikee Environmental Technology Co., Ltd., Changsha 410001, PR China
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52
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Lee AH, Jang Y, Kim GH, Kim JJ, Lee SS, Ahn BJ. Decolorizing an anthraquinone dye by Phlebia brevispora: Intra-species characterization. Eng Life Sci 2016; 17:125-131. [PMID: 32624759 DOI: 10.1002/elsc.201600059] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 06/17/2016] [Accepted: 07/04/2016] [Indexed: 11/10/2022] Open
Abstract
Remazol brilliant blue R (RBBR) is an anthraquinone dye derived from anthracene that is decolorized by a white rot fungus, Phlebia brevispora. Interestingly, P. brevispora produces two phenomena of yellowish and pinkish colors during the degradation of RBBR. Here, we characterized the decolorization of RBBR by P. brevispora. The fungus was significantly different between the two colors via UV spectrophotometry, and the morphology of the hyphae observed in the respective color culture was also entirely different. Moreover, both of the two ligninolytic enzymes, laccase and manganese-dependent peroxidase (MnP), were remarkably stimulated in the yellowish culture at the beginning of the decolorization. It is possible that the RBBR decolorizing mechanism might be primarily related to the amount of laccase and MnP produced in the yellowish culture. Thus, the decolorized color may be rapidly estimated at initial period of incubation. In addition, GeneFishing technology revealed that two genes were differentially expressed in yellowish culture.
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Affiliation(s)
- Aslan Hwanhwi Lee
- Division of Environmental Science and Ecological Engineering Korea University Seoul Korea
| | - Yeongseon Jang
- Division of Wood Chemistry and Microbiology Korea Forest Research Institute Seoul Korea
| | - Gyu-Hyeok Kim
- Division of Environmental Science and Ecological Engineering Korea University Seoul Korea
| | - Jae-Jin Kim
- Division of Environmental Science and Ecological Engineering Korea University Seoul Korea
| | - Sung-Suk Lee
- Division of Wood Chemistry and Microbiology Korea Forest Research Institute Seoul Korea
| | - Byoung-Jun Ahn
- Division of Wood Chemistry and Microbiology Korea Forest Research Institute Seoul Korea
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Cross-linked enzyme aggregates of Cerrena laccase: Preparation, enhanced NaCl tolerance and decolorization of Remazol Brilliant Blue Reactive. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2016.04.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Legerská B, Chmelová D, Ondrejovič M. Degradation of Synthetic Dyes by Laccases – A Mini-Review. NOVA BIOTECHNOLOGICA ET CHIMICA 2016. [DOI: 10.1515/nbec-2016-0010] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract Laccases provide a promising future as a tool to be used in the field of biodegradation of synthetic dyes with different chemical structures. These enzymes are able to oxidize a wide range of phenolic substrates without the presence of additional co-factors. Laccases have been confirmed for their potential of synthetic dye degradation from wastewater and degradation products of these enzymatic reactions become less toxic than selected dyes. This study discusses the potential of laccase enzymes as agents for laccase-catalyzed degradation in terms of biodegradation efficiency of synthetic dyes, specifically: azo dyes, triphenylmethane, indigo and anthraquinone dyes. Review also summarizes the laccase-catalyzed degradation mechanisms of the selected synthetic dyes, as well as the degradation products and the toxicity of the dyes and their degradation products.
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Affiliation(s)
- Barbora Legerská
- 1Department of Biotechnologies, Faculty of Natural Sciences, University of SS. Cyril and Methodius, Nam.J. Herdu 2, Trnava, SK-917 01, Slovak Republic
| | - Daniela Chmelová
- 1Department of Biotechnologies, Faculty of Natural Sciences, University of SS. Cyril and Methodius, Nam.J. Herdu 2, Trnava, SK-917 01, Slovak Republic
| | - Miroslav Ondrejovič
- 1Department of Biotechnologies, Faculty of Natural Sciences, University of SS. Cyril and Methodius, Nam.J. Herdu 2, Trnava, SK-917 01, Slovak Republic
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A High Redox Potential Laccase from Pycnoporus sanguineus RP15: Potential Application for Dye Decolorization. Int J Mol Sci 2016; 17:ijms17050672. [PMID: 27164083 PMCID: PMC4881498 DOI: 10.3390/ijms17050672] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/04/2016] [Accepted: 04/28/2016] [Indexed: 11/16/2022] Open
Abstract
Laccase production by Pycnoporus sanguineus RP15 grown in wheat bran and corncob under solid-state fermentation was optimized by response surface methodology using a Central Composite Rotational Design. A laccase (Lacps1) was purified and characterized and the potential of the pure Lacps1 and the crude culture extract for synthetic dye decolorization was evaluated. At optimal conditions (eight days, 26 °C, 18% (w/w) milled corncob, 0.8% (w/w) NH4Cl and 50 mmol·L−1 CuSO4, initial moisture 4.1 mL·g−1), the laccase activity reached 138.6 ± 13.2 U·g−1. Lacps1 was a monomeric glycoprotein (67 kDa, 24% carbohydrate). Optimum pH and temperature for the oxidation of 2,2’-azino-bis(3-ethylbenzthiazoline-6-sulfonate) (ABTS) were 4.4 and 74.4 °C, respectively. Lacps1 was stable at pH 3.0–8.0, and after two hours at 55–60 °C, presenting high redox potential (0.747 V vs. NHE). ABTS was oxidized with an apparent affinity constant of 147.0 ± 6.4 μmol·L−1, maximum velocity of 413.4 ± 21.2 U·mg−1 and catalytic efficiency of 3140.1 ± 149.6 L·mmol−1·s−1. The maximum decolorization percentages of bromophenol blue (BPB), remazol brilliant blue R and reactive blue 4 (RB4), at 25 or 40 °C without redox mediators, reached 90%, 80% and 60%, respectively, using either pure Lacps1 or the crude extract. This is the first study of the decolorization of BPB and RB4 by a P. sanguineus laccase. The data suggested good potential for treatment of industrial dye-containing effluents.
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Chen L, Zou M, Hong FF. Evaluation of Fungal Laccase Immobilized on Natural Nanostructured Bacterial Cellulose. Front Microbiol 2015; 6:1245. [PMID: 26617585 PMCID: PMC4639605 DOI: 10.3389/fmicb.2015.01245] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Accepted: 10/26/2015] [Indexed: 11/16/2022] Open
Abstract
The aim of this work was to assess the possibility of using native bacterial nanocellulose (BC) as a carrier for laccase immobilization. BC was synthesized by Gluconacetobacter xylinus, which was statically cultivated in a mannitol-based medium and was freeze-dried to form BC sponge after purification. For the first time, fungal laccase from Trametes versicolor was immobilized on the native nanofibril network-structured BC sponge through physical adsorption and cross-linking with glutaraldehyde. The properties including morphologic and structural features of the BC as well as the immobilized enzyme were thoroughly investigated. It was found that enzyme immobilized by cross-linking exhibited broader pH operation range of high catalytic activity as well as higher running stability compared to free and adsorbed enzyme. Using ABTS as substrate, the optimum pH value was 3.5 for the adsorption-immobilized laccase and 4.0 for the crosslinking-immobilized laccase. The immobilized enzyme retained 69% of the original activity after being recycled seven times. Novel applications of the BC-immobilized enzyme tentatively include active packaging, construction of biosensors, and establishment of bioreactors.
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Affiliation(s)
- Lin Chen
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering, and Biotechnology, Donghua UniversityShanghai, China
- Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua UniversityShanghai, China
| | - Min Zou
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering, and Biotechnology, Donghua UniversityShanghai, China
| | - Feng F. Hong
- Group of Microbiological Engineering and Industrial Biotechnology, College of Chemistry, Chemical Engineering, and Biotechnology, Donghua UniversityShanghai, China
- Key Laboratory of High Performance Fibers and Products, Ministry of Education, Donghua UniversityShanghai, China
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Chhabra M, Mishra S, Sreekrishnan TR. Immobilized laccase mediated dye decolorization and transformation pathway of azo dye acid red 27. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE & ENGINEERING 2015; 13:38. [PMID: 25932329 PMCID: PMC4415393 DOI: 10.1186/s40201-015-0192-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2013] [Accepted: 04/15/2015] [Indexed: 06/04/2023]
Abstract
BACKGROUND Laccases have good potential as bioremediating agents and can be used continuously in the immobilized form like many other enzymes. METHODS In the present study, laccase from Cyathus bulleri was immobilized by entrapment in Poly Vinyl Alcohol (PVA) beads cross-linked with either nitrate or boric acid. Immobilized laccase was used for dye decolorization in both batch and continuous mode employing a packed bed column. The products of degradation of dye Acid Red 27 were identified by LC MS/MS analysis. RESULTS The method led to very effective (90%) laccase immobilization and also imparted significant stability to the enzyme (more than 70% after 5 months of storage at 4°C). In batch decolorization, 90-95% decolorization was achieved of the simulated dye effluent for up to 10-20 cycles. Continuous decolorization in a packed bed bioreactor led to nearly 90% decolorization for up to 5 days. The immobilized laccase was also effective in decolorization and degradation of Acid Red 27 in the presence of a mediator. Four products of degradation were identified by LC-MS/MS analysis. CONCLUSIONS The immobilized laccase in PVA-nitrate was concluded to be an effective agent in treatment of textile dye effluents.
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Affiliation(s)
- Meenu Chhabra
- />Department of Biology, Indian Institute of Technology-Jodhpur, Jodhpur, 342011 Rajasthan India
| | - Saroj Mishra
- />Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz-Khas, New-Delhi, 110016 India
| | - Trichur Ramaswamy Sreekrishnan
- />Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology Delhi, Hauz-Khas, New-Delhi, 110016 India
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A kinetic study of textile dyeing wastewater degradation by Penicillium chrysogenum. Bioprocess Biosyst Eng 2015; 38:1019-31. [PMID: 25555702 DOI: 10.1007/s00449-014-1344-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Accepted: 12/18/2014] [Indexed: 01/29/2023]
Abstract
The potential of Penicillium chrysogenum to decolorize azo dyes and a real industrial textile wastewater was studied. P. chrysogenum was able to decolorize and degrade three azo dyes (200 mg L(-1)), either independently or in a mixture of them, using glucose as a carbon source. A kinetic model for degradation was developed and it allowed predicting the degradation kinetics of the mixture of the three azo dyes. In addition, P. chrysogenum was able to decolorize real industrial wastewater. The kinetic model proposed was also able to predict the decolorization of the real wastewater. The calibration of the proposed model makes it a useful tool for future wastewater facilities' design and for practical applications.
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Reza RA, Ahmaruzzaman M. A novel synthesis of Fe2O3@activated carbon composite and its exploitation for the elimination of carcinogenic textile dye from an aqueous phase. RSC Adv 2015. [DOI: 10.1039/c4ra13601b] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The present work reports the synthesis of Fe2O3@activated carbon composites by the co-precipitation of iron salts onto activated carbon.
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Affiliation(s)
- Ruhul Amin Reza
- Department of Chemistry
- National Institute of Technology Silchar
- India
| | - M. Ahmaruzzaman
- Department of Chemistry
- National Institute of Technology Silchar
- India
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Rodriguez JPG, Williams DE, Sabater ID, Bonugli-Santos RC, Sette LD, Andersen RJ, Berlinck RGS. The marine-derived fungus Tinctoporellus sp. CBMAI 1061 degrades the dye Remazol Brilliant Blue R producing anthraquinones and unique tremulane sesquiterpenes. RSC Adv 2015. [DOI: 10.1039/c5ra13580j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Conversion of RBBR dye to anthraquinones by the fungusTinctoporellussp., also producing novel tremulene terpenes.
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Affiliation(s)
| | - David. E. Williams
- Departments of Chemistry and Earth, Ocean & Atmospheric Sciences
- University of British Columbia
- Vancouver
- Canada
| | - Isadora D. Sabater
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos
- Brazil
| | - Rafaela C. Bonugli-Santos
- Divisão de Recursos Microbianos
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas
- Universidade Estadual de Campinas
- Brazil
| | - Lara D. Sette
- Divisão de Recursos Microbianos
- Centro Pluridisciplinar de Pesquisas Químicas, Biológicas e Agrícolas
- Universidade Estadual de Campinas
- Brazil
- Departamento de Bioquímica e Microbiologia
| | - Raymond J. Andersen
- Departments of Chemistry and Earth, Ocean & Atmospheric Sciences
- University of British Columbia
- Vancouver
- Canada
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Gioia L, Rodríguez-Couto S, Menéndez MDP, Manta C, Ovsejevi K. Reversible covalent immobilization of Trametes villosa laccase onto thiolsulfinate-agarose: An insoluble biocatalyst with potential for decoloring recalcitrant dyes. Biotechnol Appl Biochem 2014; 62:502-13. [PMID: 25196324 DOI: 10.1002/bab.1287] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Accepted: 09/02/2014] [Indexed: 01/12/2023]
Abstract
The development of a solid-phase biocatalyst based on the reversible covalent immobilization of laccase onto thiol-reactive supports (thiolsulfinate-agarose [TSI-agarose]) was performed. To achieve this goal, laccase-producing strains isolated from Eucalyptus globulus were screened and white rot fungus Trametes villosa was selected as the best strain for enzyme production. Reduction of disulfide bonds and introduction of "de novo" thiol groups in partially purified laccase were assessed to perform its reversible covalent immobilization onto thiol-reactive supports (TSI-agarose). Only the thiolation process dramatically improved the immobilization yield, from 0% for the native and reduced enzyme to 60% for the thiolated enzyme. Mild conditions for the immobilization process (pH 7.5 and 4°C) allowed the achievement of nearly 100% of coupling efficiency when low loads were applied. The kinetic parameters, pH, and thermal stabilities for the immobilized biocatalyst were similar to those for the native enzyme. After the first use and three consecutives reuses, the insoluble derivative kept more than 80% of its initial capacity for decolorizing Remazol Brilliant Blue R, showing its suitability for color removal from textile industrial effluents. The possibility of reusing the support was demonstrated by the reversibility of enzyme-support binding.
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Affiliation(s)
- Larissa Gioia
- Cátedra de Bioquímica, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Susana Rodríguez-Couto
- CEIT, Unit of Environmental Engineering, San Sebastian 20018, Spain.,IKERBASQUE, Basque Foundation for Science, Bilbao 48011, Spain
| | - María Del Pilar Menéndez
- Laboratorio de Biocatálisis y Biotransformaciones, Departamento de Química Orgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Carmen Manta
- Cátedra de Bioquímica, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
| | - Karen Ovsejevi
- Cátedra de Bioquímica, Departamento de Biociencias, Facultad de Química, Universidad de la República, Montevideo, Uruguay
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Kathiravan MN, Praveen SA, Gim GH, Han GH, Kim SW. Biodegradation of Methyl Orange by alginate-immobilized Aeromonas sp. in a packed bed reactor: external mass transfer modeling. Bioprocess Biosyst Eng 2014; 37:2149-62. [PMID: 24810435 DOI: 10.1007/s00449-014-1192-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 04/10/2014] [Indexed: 11/26/2022]
Abstract
Azo dyes are recalcitrant and xenobiotic nature makes these compounds a challenging task for continuous biodegradation up to satisfactorily levels in large-scale. In the present report, the biodegradation efficiency of alginate immobilized indigenous Aeromonas sp. MNK1 on Methyl Orange (MO) in a packed bed reactor was explored. The experimental results were used to determine the external mass transfer model. Complete MO degradation and COD removal were observed at 0.20 cm bead size and 120 ml/h flow rate at 300 mg/l of initial dye concentration. The degradation of MO decreased with increasing bead sizes and flow rates, which may be attributed to the decrease in surface of the beads and higher flux of MO, respectively. The experimental rate constants (k ps) for various beads sizes and flow rates were calculated and compared with theoretically obtained rate constants using external film diffusion models. From the experimental data, the external mass transfer effect was correlated with a model J D = K Re (-(1 - n)). The model was tested with K value (5.7) and the Colburn factor correlation model for 0.20, 0.40 and 0.60 bead sizes were J D = 5.7 Re (-0.15), J D = 5.7 Re (-0.36) and J D = 5.7 Re (-0.48), respectively. Based on the results, the Colburn factor correlation models were found to predict the experimental data accurately. The proposed model was constructive to design and direct industrial applications in packed bed reactors within acceptable limits.
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Affiliation(s)
- Mathur Nadarajan Kathiravan
- Department of Environmental Engineering, Pioneer Research Center for Controlling of Harmful Algal Bloom, Chosun University, 375 Seosuk-dong, Dong-gu, Gwangju, 501-759, Republic of Korea,
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A novel breeding strategy for new strains of Hypsizygus marmoreus and Grifola frondosa based on ligninolytic enzymes. World J Microbiol Biotechnol 2014; 30:2005-13. [PMID: 24535613 DOI: 10.1007/s11274-014-1624-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 02/10/2014] [Indexed: 10/25/2022]
Abstract
A novel breeding strategy for new strains of Hypsizygus marmoreus and Grifola frondosa using ligninolytic enzymes as markers was evaluated with the detection and analysis of activities and composition of 15 edible fungi. The results showed that the activity and composition of ligninolytic enzyme system varied in response to changes of fungal strains. By analyzing the growth rate of mycelia and their ability to produce ligninolytic enzymes, H. marmoreus and P. geesteranus, G. frondosa and P. sajor-caju were screened for further study. Three colonies of 26 regenerated colonies of H. marmoreus and P. geesteranus protoplast fusion and one colony of 48 regenerated colonies of G. frondosa and P. sajor-caju were selected respectively. At the same time, these four strains were identified using RAPD and ISSR molecular markers. The results showed that the strains HM5G1 and PS7F1 are new strains and have low similarity to parental strains H. marmoreus and G. frondosa. These results are supported by the results of antagonism tests. These two fusants were significantly higher in their ligninolytic enzyme activity than H. marmoreus and G. frondosa. The growth rates of strains HM5G1and PS7F1 were also noticeably higher than those of H. marmoreus and G. frondosa, by 1.36 and 1.5 times respectively. The biological efficiency of the strain HM5G1 was 11.5% higher than that of the parental strain H. marmoreus. This work suggests that it is an efficient way of breeding new strains to use the decolorization of ligninolytic enzymes as a preliminary screening marker.
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65
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Recent developments and applications of immobilized laccase. Biotechnol Adv 2013; 31:1808-25. [DOI: 10.1016/j.biotechadv.2012.02.013] [Citation(s) in RCA: 443] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 02/10/2012] [Accepted: 02/20/2012] [Indexed: 11/21/2022]
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Olad A, Azhar FF, Shargh M, Jharfi S. Application of response surface methodology for modeling of reactive dye removal from solution using starch-montmorillonite/polyaniline nanocomposite. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23697] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Ali Olad
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Fahimeh Farshi Azhar
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Maryam Shargh
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
| | - Sanaz Jharfi
- Faculty of Chemistry; Department of Applied Chemistry; Polymer Composite Research Laboratory; University of Tabriz; Tabriz Iran
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The use of soybean peroxidase in the decolourization of Remazol Brilliant Blue R and toxicological evaluation of its degradation products. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2013.01.004] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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68
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Characterization of optimized production, purification and application of laccase from Ganoderma lucidum. Biochem Eng J 2013. [DOI: 10.1016/j.bej.2012.10.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sathishkumar P, Palvannan T, Murugesan K, Kamala-Kannan S. Detoxification of malachite green by Pleurotus florida laccase produced under solid-state fermentation using agricultural residues. ENVIRONMENTAL TECHNOLOGY 2013; 34:139-147. [PMID: 23530324 DOI: 10.1080/09593330.2012.689359] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Laccase was produced from Pleurotus florida under solid-state fermentation, and the production was optimized by response surface methodology. The predicted maximum laccase production of 8.81 U g(-1) was obtained by the optimum concentration of malt extract, banana peel, wheat bran and CuSO4, which was found to be 0.69 g, 10.61 g, 10.68 g and 77.15 ppm, respectively. The validation results suggested that the laccase production was 7.96 U g(-1) in the optimized medium, which was close to the predicted value. Decolorization efficiency of P. florida laccase was evaluated against malachite green (MG). Rapid decolorization of MG dye was observed, and a dark-coloured precipitate was formed in the reaction mixture. HPLC analysis indicated that the laccase enzyme degraded MG by the demethylation process. The toxicity of MG was reduced to 67% after the treatment with laccase, which was confirmed by a phytotoxicity study.
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Affiliation(s)
- Palanivel Sathishkumar
- Laboratory of Bioprocess and Engineering, Department of Biochemistry, Periyar University, Salem, Tamil Nadu 636 011, India.
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Perlatti B, da Silva MFDGF, Fernandes JB, Forim MR. Validation and application of HPLC-ESI-MS/MS method for the quantification of RBBR decolorization, a model for highly toxic molecules, using several fungi strains. BIORESOURCE TECHNOLOGY 2012; 124:37-44. [PMID: 22985849 DOI: 10.1016/j.biortech.2012.08.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 08/06/2012] [Accepted: 08/10/2012] [Indexed: 06/01/2023]
Abstract
A novel analytical method using HPLC-MS/MS operating in selected reaction monitoring (SRM) for evaluation of fungi efficacy to decolorize Remazol Brilliant Blue R (RBBR) dye solution was developed, validated and applied. The method shows high sensibility allowing the detection of 4.6 pM of RBBR. Four fungal strains were tested in liquid medium, three strains of Aspergillus (Aspergillus aculeatus, Aspergillus flavus and Aspergillus fumigatus) and Phanerochaete chrysosporium. All fungi were able to degrade the dye, with efficiencies ranging from 40% for P. chrysosporium up to 99% for A. flavus during a 30-day incubation period. During the experiment, increased accumulation of degradation products was observed in A. flavus cultures containing RBBR. Through the use of full scan HPLC-MS technique it was possible to propose the biogenesis of the microbial metabolic degradation pathway. Screening using microorganisms and RBBR may be hereafter used to investigate microbial biodegradation of high toxicity molecules such as dioxins.
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Affiliation(s)
- Bruno Perlatti
- Department of Chemistry, Federal University of São Carlos, São Carlos-SP, Brazil
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71
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Mirmohseni A, Seyed Dorraji MS, Figoli A, Tasselli F. Chitosan hollow fibers as effective biosorbent toward dye: preparation and modeling. BIORESOURCE TECHNOLOGY 2012; 121:212-220. [PMID: 22858488 DOI: 10.1016/j.biortech.2012.06.067] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 06/16/2012] [Accepted: 06/23/2012] [Indexed: 06/01/2023]
Abstract
Chitosan hollow fibers were produced via a dry-wet spinning technique with good mechanical properties. The prepared membranes were tested for removal of reactive blue 19 as a model anionic dye. Response surface methodology was employed for the modeling of adsorption capacity of fibers. A second-order empirical relationship between adsorption capacity and independent variables (initial pH, contact time, initial dye concentration and amount of fibers) was obtained. Pareto analysis established that initial pH was the most effective parameter. The adsorption capacity value of reactive blue 19 on chitosan hollow fibers was 454.5 mg g(-1). The adsorption was well described by pseudo-second-order kinetics and Freundlich equation.
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Affiliation(s)
- A Mirmohseni
- Polymer Research Technology Laboratory, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran.
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72
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Interspecific interactions in mixed microbial cultures in a biodegradation perspective. Appl Microbiol Biotechnol 2012; 95:861-70. [PMID: 22733114 DOI: 10.1007/s00253-012-4234-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 06/05/2012] [Accepted: 06/07/2012] [Indexed: 01/08/2023]
Abstract
In recent works, microbial consortia consisting of various bacteria and fungi exhibited a biodegradation performance superior to single microbial strains. A highly efficient biodegradation of synthetic dyes, polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and other organic pollutants can be achieved by mixed microbial cultures that combine degradative enzyme activities inherent to individual consortium members. This review summarizes biodegradation results obtained with defined microbial cocultures and real microbial consortia. The necessity of using a proper strategy for the microbial consortium development and optimization was clearly demonstrated. Molecular genetic and proteomic techniques have revolutionized the study of microbial communities, and techniques such as the denaturing gradient gel electrophoresis, rRNA sequencing, and metaproteomics have been used to identify consortium members and to study microbial population dynamics. These analyses could help to further enhance and optimize the natural activities of mixed microbial cultures.
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73
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Cristóvão RO, Silvério SC, Tavares APM, Brígida AIS, Loureiro JM, Boaventura RAR, Macedo EA, Coelho MAZ. Green coconut fiber: a novel carrier for the immobilization of commercial laccase by covalent attachment for textile dyes decolourization. World J Microbiol Biotechnol 2012; 28:2827-38. [PMID: 22806722 DOI: 10.1007/s11274-012-1092-4] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2012] [Accepted: 05/24/2012] [Indexed: 11/24/2022]
Abstract
Commercial laccase formulation was immobilized on modified green coconut fiber silanized with 3-glycidoxypropyltrimethoxysilane, aiming to achieve a cheap and effective biocatalyst. Two different strategies were followed: one point (pH 7.0) and multipoint (pH 10.0) covalent attachment. The influence of immobilization time on enzymatic activity and the final reduction with sodium borohydride were evaluated. The highest activities were achieved after 2 h of contact time in all situations. Commercial laccase immobilized at pH 7.0 was found to have higher activity and higher affinity to the substrate. However, the immobilization by multipoint covalent attachment improved the biocatalyst thermal stability at 50 °C, when compared to soluble enzyme and to the immobilized enzyme at pH 7.0. The Schiff's bases reduction by sodium borohydride, in spite of causing a decrease in enzyme activity, showed to contribute to the increase of operational stability through bonds stabilization. Finally, these immobilized enzymes showed high efficiency in the continuous decolourization of reactive textile dyes. In the first cycle, the decolourization is mainly due to dyes adsorption on the support. However, when working in successive cycles, the adsorption capacity of the support decreases (saturation) and the enzymatic action increases, indicating the applicability of this biocatalyst for textile wastewater treatment.
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Affiliation(s)
- Raquel O Cristóvão
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Departamento de Engenharia Química, Faculdade de Engenharia, Universidade do Porto, Rua do Dr. Roberto Frias, 4200-465, Porto, Portugal
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74
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Bayramoglu G, Altintas B, Yakup Arica M. Cross-linking of horseradish peroxidase adsorbed on polycationic films: utilization for direct dye degradation. Bioprocess Biosyst Eng 2012; 35:1355-65. [DOI: 10.1007/s00449-012-0724-2] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2011] [Accepted: 03/09/2012] [Indexed: 10/28/2022]
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75
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Karagoz B, Bayramoglu G, Altintas B, Bicak N, Arica MY. Amine functional monodisperse microbeads via precipitation polymerization of N-vinyl formamide: immobilized laccase for benzidine based dyes degradation. BIORESOURCE TECHNOLOGY 2011; 102:6783-6790. [PMID: 21531131 DOI: 10.1016/j.biortech.2011.03.050] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 03/10/2011] [Accepted: 03/16/2011] [Indexed: 05/30/2023]
Abstract
Densely cross-linked poly(vinylamine) microbeads (∼ 2 μm) were prepared by precipitation copolymerization of N-vinyl formamide and ethylene glycoldimethacrylate in acetonitrile. The formamido groups of the microbeads were hydrolyzed into amino groups. Then, amino-functionalized microbeads were used for covalent immobilization of laccase via glutaraldehyde coupling. The average amount of immobilized enzyme was 18.7 mg/g microbeads. Kinetic parameters, V(max) and K(m) values were determined as 20.7 U/mg protein and 2.76 × 10(-2)mmol/L for free enzyme and 15.8 U/mg protein and 4.65 mmol/L for the immobilized laccase, respectively. The immobilized laccase was operated in a batch reactor for the degradation of two different benzidine based dyes (i.e., Direct Blue 1 and Direct Red 128). The laccase immobilized on the microbeads was very effective for removal of these dyes which interfere with the hormonal system.
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Affiliation(s)
- Bunyamin Karagoz
- Istanbul Technical University, Department of Chemistry, Maslak 34469, Istanbul, Turkey
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76
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Moreira Neto SL, Esteves PJ, Santos VTO, Paranhos AP, Cescato F, Vitali VM, Machado KMG. Novel salt and alkali tolerant neotropical basidiomycetes for dye decolorisation in simulated textile effluent. World J Microbiol Biotechnol 2011. [DOI: 10.1007/s11274-011-0740-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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