301
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Shi L, Ma F, Han Y, Zhang X, Yu H. Removal of sulfonamide antibiotics by oriented immobilized laccase on Fe3O4 nanoparticles with natural mediators. JOURNAL OF HAZARDOUS MATERIALS 2014; 279:203-211. [PMID: 25064257 DOI: 10.1016/j.jhazmat.2014.06.070] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 06/07/2014] [Accepted: 06/21/2014] [Indexed: 06/03/2023]
Abstract
A novel strategy was applied in the oriented immobilization of laccase from Echinodontium taxodii on concanavalin A-activated Fe3O4 nanoparticles (GAMNs-Con A) based on laccase surface analysis. These nanoparticles showed higher enzyme loading and activity recovery compared with conventional covalent binding. Along with the improvement in thermal and operational stabilities, the oriented immobilized laccase (GAMNs-Con A-L) exhibited higher substrate affinity than free laccase. Free laccase and GAMNs-Con A-L were then applied in the removal of sulfonamide antibiotics (SAs). Although both free and immobilized laccase resulted in the rapid removal of SAs, GAMNs-Con A-L showed a higher removal rate of SAs compared with the free counterpart in the presence of S-type compounds present in lignin structure. Syringic acid mediated the fastest removal efficiency of SAs among S-type compounds and resulted in an almost complete removal of these substances after incubation for 5min. The oxidation products of SAs were identified via LC-ESI(+)-MS. The results suggested the transformation of SAs and S-type compounds were catalyzed by laccase, resulting in the formation of cross-coupled products.
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Affiliation(s)
- Lili Shi
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Fuying Ma
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Yuling Han
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Xiaoyu Zhang
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China
| | - Hongbo Yu
- Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Luoyu Road 1037, Wuhan 430074, PR China.
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302
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Sethuraman V, Muthuraja P, Sethupathy M, Manisankar P. Development of Biosensor for Catechol Using Electrosynthesized Poly(3-methylthiophene) and Incorporation of LAC Simultaneously. ELECTROANAL 2014. [DOI: 10.1002/elan.201400236] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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303
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Jahangiri E, Reichelt S, Thomas I, Hausmann K, Schlosser D, Schulze A. Electron beam-induced immobilization of laccase on porous supports for waste water treatment applications. Molecules 2014; 19:11860-82. [PMID: 25111026 PMCID: PMC6270853 DOI: 10.3390/molecules190811860] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2014] [Revised: 07/31/2014] [Accepted: 08/01/2014] [Indexed: 11/17/2022] Open
Abstract
The versatile oxidase enzyme laccase was immobilized on porous supports such as polymer membranes and cryogels with a view of using such biocatalysts in bioreactors aiming at the degradation of environmental pollutants in wastewater. Besides a large surface area for supporting the biocatalyst, the aforementioned porous systems also offer the possibility for simultaneous filtration applications in wastewater treatment. Herein a "green" water-based, initiator-free, and straightforward route to highly reactive membrane and cryogel-based bioreactors is presented, where laccase was immobilized onto the porous polymer supports using a water-based electron beam-initiated grafting reaction. In a second approach, the laccase redox mediators 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) and syringaldehyde were cross-linked instead of the enzyme via electron irradiation in a frozen aqueous poly(acrylate) mixture in a one pot set-up, yielding a mechanical stable macroporous cryogel with interconnected pores ranging from 10 to 50 µm in size. The membranes as well as the cryogels were characterized regarding their morphology, chemical composition, and catalytic activity. The reactivity towards waste- water pollutants was demonstrated by the degradation of the model compound bisphenol A (BPA). Both membrane- and cryogel-immobilized laccase remained highly active after electron beam irradiation. Apparent specific BPA removal rates were higher for cryogel- than for membrane-immobilized and free laccase, whereas membrane-immobilized laccase was more stable with respect to maintenance of enzymatic activity and prevention of enzyme leakage from the carrier than cryogel-immobilized laccase. Cryogel-immobilized redox mediators remained functional in accelerating the laccase-catalyzed BPA degradation, and especially ABTS was found to act more efficiently in immobilized than in freely dissolved state.
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Affiliation(s)
- Elham Jahangiri
- Helmholtz Centre for Environmental Research, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Senta Reichelt
- Leibniz Institute of Surface Modification, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Isabell Thomas
- Leibniz Institute of Surface Modification, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Kristin Hausmann
- Leibniz Institute of Surface Modification, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Dietmar Schlosser
- Helmholtz Centre for Environmental Research, Permoserstr. 15, D-04318 Leipzig, Germany.
| | - Agnes Schulze
- Leibniz Institute of Surface Modification, Permoserstr. 15, D-04318 Leipzig, Germany.
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304
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Li XY, Yu SY, Park HJ, Zhao M. Polyethyleneglycol diacrylate microspheres: a novel carrier for laccase immobilisation. J Microencapsul 2014; 32:22-8. [PMID: 25090598 DOI: 10.3109/02652048.2014.940014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Laccase was immobilised on polyethyleneglycol diacrylate (PEGDA) microspheres. The optimal preparation conditions of PEGDA microspheres were as follows: 3.0% (w/v) 2,2-azobisisobutyro-nitrite (AIBN), 4.0-5.0% (w/v) polyvinylpyrrolidone (PVP), 5.0-8.0% (w/v) glucose and 4.0% (w/v) PEGDA in glucose solution. The volume ratio of PEGDA solution, glucose/PVP solution and AIBN solution was 25: 100: 1. Microspheres obtained exhibited good characteristics with small sizes (1-4 µm). The immobilised laccase showed a higher stability in a wide pH range. Thermal stability and storage stability of immobilised laccase were enhanced. The activity of immobilised laccase was 45.0% after six cycles uses. Only 62.7% of the activity remained for free laccase while there was a 60.4% increased for immobilised laccase with storage at 4 °C for 25 d. The Km value of laccase increased from 21.9 to 114.0 µmol/l after immobilisation.
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Affiliation(s)
- Xiao Yan Li
- College of Life Sciences, Northeast Forestry University , Harbin , P.R. China and
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305
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Kumar VV, Sivanesan S, Cabana H. Magnetic cross-linked laccase aggregates--bioremediation tool for decolorization of distinct classes of recalcitrant dyes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2014; 487:830-839. [PMID: 24785303 DOI: 10.1016/j.scitotenv.2014.04.009] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 04/01/2014] [Accepted: 04/01/2014] [Indexed: 06/03/2023]
Abstract
The increasing use of laccase in waste water industries is useful to explore the high benefit/cost ratio of insolubilization technologies like cross linked enzyme aggregates (CLEAs) for the decolorization and detoxification of distinctive classes of recalcitrant dyes. Amino-functionalized magnetic nanoparticles bonded to CLEAs increased the potential of laccase-based CLEAs and are applicable for commercial implementation of this technology in environmental applications. The activity recovery obtained from the stable rigid structure of magnetic CLEAs was around 32%. High volumetric activity, increased in thermal and operational stability of laccase and its resistance to extreme conditions were the properties provided by these magnetic CLEAs. Kinetic studies show that the catalytic efficiency of the enzyme, based on the kcat/km value, changed significantly upon CLEAs and magnetic CLEA formations. When 0.2U/mL of magnetic CLEAs was used, the biocatalyst rapidly decolorized 61-96% of remazol brilliant blue R, malachite green and reactive black 5 initially at 50mgL(-1) at 20°C and pH7.0. Investigation of dye degradation using both active and heat denatured CLEAs revealed a slight adsorption of dyes on inactivated biocatalysts. A laboratory scale perfusion basket reactor (BR) was used to study the continuous decolorization of dyes. The efficient decolorization (>90%) of remazol brilliant blue R and slight decrease in CLEA activity were measured over a 10h period of continuous operation, which illustrates the potential of CLEAs for the wastewater treatment. The present findings will advance the understanding of dye decolorization mechanism by CLEA laccase, which could provide useful references for developing industrial wastewater treatment.
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Affiliation(s)
- Vaidyanathan Vinoth Kumar
- Department of Applied Science and Technology, Environment Management Laboratory, AC Tech, Anna University, Chennai 600025, India; Department of Biotechnology, School of Bioengineering, SRM University, Kattankulathur, Chennai 603203, India
| | - Subramanian Sivanesan
- Department of Applied Science and Technology, Environment Management Laboratory, AC Tech, Anna University, Chennai 600025, India
| | - Hubert Cabana
- Department of Civil Engineering, Université de Sherbrooke, 2500 Boulevard de l'Université, Sherbrooke, Québec J1K 2R1, Canada.
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306
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Zhang X, Pan B, Wu B, Zhang W, Lv L. A new polymer-based laccase for decolorization of AO7: long-term storage and mediator reuse. BIORESOURCE TECHNOLOGY 2014; 164:248-253. [PMID: 24862000 DOI: 10.1016/j.biortech.2014.04.105] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 04/26/2014] [Accepted: 04/28/2014] [Indexed: 06/03/2023]
Abstract
To address the bottlenecks of laccase-based catalysis, i.e., poor long-term stability and potential secondary pollution caused by synthetic mediator, we fabricated a new biocatalyst (N-PS-Lac) through adsorption of laccase onto polystyrene anion exchangers (N-PS) binding quaternary ammonium groups. After 2-year storage, the residual activity of N-PS-Lac remained as high as 101.7%, while that for native laccase was only 14.6%. Also, N-PS-Lac exhibited improved durability against pH variation and thermal treatment at 60°C. Gaussian curve fitting of FT-IR spectra indicated that laccase conformation of N-PS-Lac was rigidified, possibly because of the host geometric restriction and the host-laccase electrostatic attraction. A two-step method, i.e., adsorption of an azo dye AO7 by N-PS and then ectopic degradation by the immobilized laccase, was proposed to reuse the mediator HOBT for seven cyclic runs, where N-PS-Lac kept the constant decolorization efficiency. AO7 solution was detoxified completely after decolorization by the two-step method.
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Affiliation(s)
- Xiaolin Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China.
| | - Bing Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Weiming Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
| | - Lu Lv
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China
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307
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Khoobi M, Motevalizadeh SF, Asadgol Z, Forootanfar H, Shafiee A, Faramarzi MA. Synthesis of functionalized polyethylenimine-grafted mesoporous silica spheres and the effect of side arms on lipase immobilization and application. Biochem Eng J 2014. [DOI: 10.1016/j.bej.2014.04.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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308
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Guzik U, Hupert-Kocurek K, Wojcieszyńska D. Immobilization as a strategy for improving enzyme properties-application to oxidoreductases. Molecules 2014; 19:8995-9018. [PMID: 24979403 PMCID: PMC6271243 DOI: 10.3390/molecules19078995] [Citation(s) in RCA: 305] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/13/2014] [Accepted: 06/16/2014] [Indexed: 01/05/2023] Open
Abstract
The main objective of the immobilization of enzymes is to enhance the economics of biocatalytic processes. Immobilization allows one to re-use the enzyme for an extended period of time and enables easier separation of the catalyst from the product. Additionally, immobilization improves many properties of enzymes such as performance in organic solvents, pH tolerance, heat stability or the functional stability. Increasing the structural rigidity of the protein and stabilization of multimeric enzymes which prevents dissociation-related inactivation. In the last decade, several papers about immobilization methods have been published. In our work, we present a relation between the influence of immobilization on the improvement of the properties of selected oxidoreductases and their commercial value. We also present our view on the role that different immobilization methods play in the reduction of enzyme inhibition during biotechnological processes.
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Affiliation(s)
- Urszula Guzik
- University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Biochemistry, Jagiellonska 28, 40-032 Katowice, Poland.
| | - Katarzyna Hupert-Kocurek
- University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Biochemistry, Jagiellonska 28, 40-032 Katowice, Poland.
| | - Danuta Wojcieszyńska
- University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Biochemistry, Jagiellonska 28, 40-032 Katowice, Poland.
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309
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Polyhydroyxalkanoate synthase fusions as a strategy for oriented enzyme immobilisation. Molecules 2014; 19:8629-43. [PMID: 24962396 PMCID: PMC6271518 DOI: 10.3390/molecules19068629] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2014] [Revised: 06/19/2014] [Accepted: 06/19/2014] [Indexed: 01/21/2023] Open
Abstract
Polyhydroxyalkanoate (PHA) is a carbon storage polymer produced by certain bacteria in unbalanced nutrient conditions. The PHA forms spherical inclusions surrounded by granule associate proteins including the PHA synthase (PhaC). Recently, the intracellular formation of PHA granules with covalently attached synthase from Ralstonia eutropha has been exploited as a novel strategy for oriented enzyme immobilisation. Fusing the enzyme of interest to PHA synthase results in a bifunctional protein able to produce PHA granules and immobilise the active enzyme of choice to the granule surface. Functionalised PHA granules can be isolated from the bacterial hosts, such as Escherichia coli, and maintain enzymatic activity in a wide variety of assay conditions. This approach to oriented enzyme immobilisation has produced higher enzyme activities and product levels than non-oriented immobilisation techniques such as protein inclusion based particles. Here, enzyme immobilisation via PHA synthase fusion is reviewed in terms of the genetic designs, the choices of enzymes, the control of enzyme orientations, as well as their current and potential applications.
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310
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Wang S, Chen W, He S, Zhao Q, Li X, Sun J, Jiang X. Mesosilica-coated ultrafine fibers for highly efficient laccase encapsulation. NANOSCALE 2014; 6:6468-6472. [PMID: 24821021 DOI: 10.1039/c4nr01166j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper, we present a simple but efficient biomimetic method to encapsulate laccase on mesoporous silica-modified electrospun (ES) ultrafine fibers. Because of the mild immobilization conditions (room temperature, aqueous condition), the encapsulated laccase retained a high activity of 94%. Because of the protection from the silica layer, the laccase worked efficiently at 60 °C and retained a long-term activity in the presence of proteinase K. After recycling for 10 times the laccase still preserved 96% of its original reactivity. More remarkably, the immobilized laccase on fibers could completely recover its activity after thermal denature, while the free laccase permanently lost the activity. We also demonstrated that the laccase on silica-coated fibers exhibited an enhanced decolorization capability of Brilliant Blue KN-R (BBKN-R) as compared to the free laccase, showing its great potential for industrial applications.
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Affiliation(s)
- Shiwen Wang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education of China, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu 610031, China.
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311
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Ricklefs E, Winkler N, Koschorreck K, Urlacher VB. Expanding the laccase-toolbox: a laccase from Corynebacterium glutamicum with phenol coupling and cuprous oxidase activity. J Biotechnol 2014; 191:46-53. [PMID: 24910971 DOI: 10.1016/j.jbiotec.2014.05.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Revised: 05/23/2014] [Accepted: 05/30/2014] [Indexed: 11/18/2022]
Abstract
Laccases are oxidases with potential for application in biotechnology. Up to now only fungal laccases have been applied in technical processes, although bacterial laccases are generally easier to handle and more stable at alkaline pH values and elevated temperatures. To increase the toolbox of bacterial laccases and to broaden our knowledge about them, new enzymes have to be characterized. Within this study, we describe the new bacterial laccase CgL1 from Corynebacterium glutamicum. CgL1 was found to oxidize typical laccase substrates like 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid), syringaldazine and 2,6-dimethoxyphenol. The enzyme also demonstrates cuprous oxidase activity. Furthermore, CgL1 is active for several hours at temperatures up to 60°C and at alkaline pH, as well as stable in different organic solvents. This makes CgL1 a potential candidate for technical applications. In addition, CgL1 was found to catalyze the CC/CO coupling of several phenolic compounds which can serve as precursors for the synthesis of natural products like antibiotics and phytohormones. This activity and product distribution were influenced by pH value and mediators used.
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Affiliation(s)
- Esther Ricklefs
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Nadine Winkler
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Katja Koschorreck
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Vlada B Urlacher
- Institute of Biochemistry, Heinrich-Heine University Düsseldorf, Universitätsstr. 1, 40225 Düsseldorf, Germany.
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312
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Gascón V, Díaz I, Márquez-Álvarez C, Blanco RM. Mesoporous silicas with tunable morphology for the immobilization of laccase. Molecules 2014; 19:7057-71. [PMID: 24886935 PMCID: PMC6272017 DOI: 10.3390/molecules19067057] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2014] [Revised: 05/20/2014] [Accepted: 05/23/2014] [Indexed: 11/25/2022] Open
Abstract
Siliceous ordered mesoporous materials (OMM) are gaining interest as supports for enzyme immobilization due to their uniform pore size, large surface area, tunable pore network and the introduction of organic components to mesoporous structure. We used SBA-15 type silica materials, which exhibit a regular 2D hexagonal packing of cylindrical mesopores of uniform size, for non-covalent immobilization of laccase. Synthesis conditions were adjusted in order to obtain supports with different particle shape, where those with shorter channels had higher loading capacity. Despite the similar isoelectric points of silica and laccase and the close match between the size of laccase and the pore dimensions of these SBA-15 materials, immobilization was achieved with very low leaching. Surface modification of macro-/mesoporous amorphous silica by grafting of amine moieties was proved to significantly increase the isoelectric point of this support and improve the immobilization yield.
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Affiliation(s)
- Victoria Gascón
- Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, Madrid 28049, Spain
| | - Isabel Díaz
- Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, Madrid 28049, Spain
| | | | - Rosa M Blanco
- Instituto de Catálisis y Petroleoquímica, CSIC, Marie Curie 2, Madrid 28049, Spain.
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313
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Immobilization of a Pleurotus ostreatus laccase mixture on perlite and its application to dye decolourisation. BIOMED RESEARCH INTERNATIONAL 2014; 2014:308613. [PMID: 24895564 PMCID: PMC4034487 DOI: 10.1155/2014/308613] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 04/03/2014] [Accepted: 04/24/2014] [Indexed: 11/18/2022]
Abstract
In the present study, a crude laccase preparation from Pleurotus ostreatus was successfully immobilized on perlite, a cheap porous silica material, and tested for Remazol Brilliant Blue R (RBBR) decolourisation in a fluidized bed recycle reactor. Results showed that RBBR decolourisation is mainly due to enzyme action despite the occurrence of dye adsorption-related enzyme inhibition. Fine tuning of immobilization conditions allowed balancing the immobilization yield and the resulting rate of decolourisation, with the adsorption capacity of the solid biocatalyst. In the continuous lab scale reactor, a maximum conversion degree of 56.1% was achieved at reactor space-time of 4.2 h. Stability and catalytic parameters of the immobilized laccases were also assessed in comparison with the soluble counterparts, revealing an increase in stability, despite a reduction of the catalytic performances. Both effects are most likely ascribable to the occurrence of multipoint attachment phenomena.
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314
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Fernández-Fernández M, Moldes D, Domínguez A, Sanromán MÁ, Tavares APM, Rodríguez O, Macedo EA. Stability and kinetic behavior of immobilized laccase fromMyceliophthora thermophilain the presence of the ionic liquid 1-ethyl-3-methylimidazolium ethylsulfate. Biotechnol Prog 2014; 30:790-6. [DOI: 10.1002/btpr.1910] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 02/20/2014] [Indexed: 11/11/2022]
Affiliation(s)
| | - Diego Moldes
- Dept. of Chemical Engineering; University of Vigo; Lagoas Marcosende 36310 Vigo Spain
| | - Alberto Domínguez
- Dept. of Chemical Engineering; University of Vigo; Lagoas Marcosende 36310 Vigo Spain
| | - M. Ángeles Sanromán
- Dept. of Chemical Engineering; University of Vigo; Lagoas Marcosende 36310 Vigo Spain
| | - Ana Paula M. Tavares
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculdade de Engenharia; Universidade do Porto; Rua Dr. Roberto Frias 4200-465 Porto Portugal
| | - Oscar Rodríguez
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculdade de Engenharia; Universidade do Porto; Rua Dr. Roberto Frias 4200-465 Porto Portugal
| | - Eugénia A. Macedo
- Laboratory of Separation and Reaction Engineering (LSRE), Associate Laboratory LSRE/LCM, Faculdade de Engenharia; Universidade do Porto; Rua Dr. Roberto Frias 4200-465 Porto Portugal
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315
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Jędrychowska A, Cabaj J, Świst A, Sołoducho J. Electrochemical laccase sensor based on 3-methylthiophene/3-thiopheneacetic acid/bis(3,4-ethylenedioxythiophene)-N-nonylacridone as a new polymer support. J Electroanal Chem (Lausanne) 2014. [DOI: 10.1016/j.jelechem.2014.03.017] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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316
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Wang Q, Cui J, Li G, Zhang J, Li D, Huang F, Wei Q. Laccase immobilized on a PAN/adsorbents composite nanofibrous membrane for catechol treatment by a biocatalysis/adsorption process. Molecules 2014; 19:3376-88. [PMID: 24651612 PMCID: PMC6271767 DOI: 10.3390/molecules19033376] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/06/2014] [Accepted: 03/06/2014] [Indexed: 12/07/2022] Open
Abstract
The treatment of catechol via biocatalysis and adsorption with a commercial laccase immobilized on polyacrylonitrile/montmorillonite/graphene oxide (PAN/MMT/GO) composite nanofibers was evaluated with a homemade nanofibrous membrane reactor. The properties in this process of the immobilized laccase on PAN, PAN/MMT as well as PAN/MMT/GO with different weight ratios of MMT and GO were investigated. These membranes were successfully applied for removal of catechol from an aqueous solution. Scanning electron microscope images revealed different morphologies of the enzyme aggregates on different supports. After incorporation of MMT or MMT/GO, the optimum pH showed an alkaline shift to 4, compared to 3.5 for laccase immobilized on pure PAN nanofibers. The optimum temperature was at 55 °C for all the immobilized enzymes. Besides, the addition of GO improved the operational stability and storage stability. A 39% ± 2.23% chemical oxygen demand (COD) removal from the catechol aqueous solution was achieved. Experimental results suggested that laccase, PAN, adsorbent nanoparticles (MMT/GO) can be combined together for catechol treatment in industrial applications.
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Affiliation(s)
- Qingqing Wang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Jing Cui
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Guohui Li
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Jinning Zhang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Dawei Li
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Fenglin Huang
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
| | - Qufu Wei
- Key Laboratory of Eco-Textiles, Ministry of Education, Jiangnan University, Wuxi 214122, China.
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317
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Mirzadeh SS, Khezri SM, Rezaei S, Forootanfar H, Mahvi AH, Faramarzi MA. Decolorization of two synthetic dyes using the purified laccase of Paraconiothyrium variabile immobilized on porous silica beads. JOURNAL OF ENVIRONMENTAL HEALTH SCIENCE AND ENGINEERING 2014; 12:6. [PMID: 24393474 PMCID: PMC3897971 DOI: 10.1186/2052-336x-12-6] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/20/2013] [Accepted: 10/06/2013] [Indexed: 12/07/2022]
Abstract
Background Decolorization of hazardous synthetic dyes using laccases in both free and immobilized form has gained attention during the last decades. The present study was designed to prepare immobilized laccase (purified from Paraconiothyrium variabile) on porous silica beads followed by evaluation of both free and immobilized laccases for decolorization of two synthetic dyes of Acid Blue 25 and Acid Orange 7. Effects of laccase concentration, pH and temperature alteration, and presence of 1-hydroxybenzotriazole (HBT) as laccase mediator on decolorization pattern were also studied. In addition, the kinetic parameters (Km and Vmax) of the free and immobilized laccases for each synthetic dye were calculated. Results Immobilized laccase represented higher temperature and pH stability compare to free one. 39% and 35% of Acid Blue 25 and Acid Orange 7 was decolorized, respectively after 65 min incubation in presence of the free laccase. In the case of immobilized laccase decolorization percent was found to be 76% and 64% for Acid Blue 25 and Acid Orange 7, respectively at the same time. Increasing of laccase activity enhanced decolorization percent using free and immobilized laccases. Relative decolorization of both applied dyes was increased after treatment by laccase-HBT system. After nine cycles of decolorization by immobilized laccase, 26% and 31% of relative activity were lost in the case of Acid Blue 25 and Acid Orange 7, respectively. Conclusions To sum up, the present investigation introduced the immobilized laccase of P. variabile on porous beads as an efficient biocatalyst for decolorization of synthetic dyes.
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Affiliation(s)
| | | | | | | | - Amir Hossein Mahvi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences, Tehran 14176, Iran.
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318
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Zhang H, Wang Z, Wang C, Wang H, Cheng T, Wang L. A new method for the enamination of 1,3-dicarbonyl compounds catalyzed by laccase in water. RSC Adv 2014. [DOI: 10.1039/c4ra02650k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Laccase-catalyzed enamination of 1,3-dicarbonyl compounds in water.
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Affiliation(s)
- Hong Zhang
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education
- Jilin University
- Changchun 130023, PR China
- College of Chemistry
- Jilin University
| | - Zhi Wang
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education
- Jilin University
- Changchun 130023, PR China
- College of Life Science
- Jilin University
| | - Chunyu Wang
- State Key Laborarory of Supramolecular Structure and Materials
- Jilin University
- Changchun 130023, PR China
| | - Haoran Wang
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education
- Jilin University
- Changchun 130023, PR China
- College of Life Science
- Jilin University
| | - Tiexin Cheng
- College of Chemistry
- Jilin University
- Changchun 130023, PR China
| | - Lei Wang
- Key Laboratory of Molecular Enzymology and Engineering of Ministry of Education
- Jilin University
- Changchun 130023, PR China
- College of Life Science
- Jilin University
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319
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Beneyton T, Coldren F, Baret JC, Griffiths AD, Taly V. CotA laccase: high-throughput manipulation and analysis of recombinant enzyme libraries expressed in E. coli using droplet-based microfluidics. Analyst 2014; 139:3314-23. [DOI: 10.1039/c4an00228h] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A high-throughput cell analysis and sorting platform using droplet-based microfluidics is introduced for directed evolution of recombinant CotA laccase expressed in E. coli.
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Affiliation(s)
- Thomas Beneyton
- Laboratoire de Biologie Chimique
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS)
- CNRS UMR 7006
- F-67083 Strasbourg, France
- Laboratoire de Biochimie
| | - Faith Coldren
- Laboratoire de Biologie Chimique
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS)
- CNRS UMR 7006
- F-67083 Strasbourg, France
| | - Jean-Christophe Baret
- Droplets Membranes and Interfaces
- Max Planck Institute for Dynamics and Self-Organization
- D-37077 Goettingen, Germany
- Université de Bordeaux
- CRPP-CNRS
| | - Andrew D. Griffiths
- Laboratoire de Biologie Chimique
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS)
- CNRS UMR 7006
- F-67083 Strasbourg, France
- Laboratoire de Biochimie
| | - Valérie Taly
- Laboratoire de Biologie Chimique
- Institut de Science et d'Ingénierie Supramoléculaires (ISIS)
- CNRS UMR 7006
- F-67083 Strasbourg, France
- Université Paris Sorbonne Cité
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320
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Yang F, Wang Z, Wang H, Zhang H, Yue H, Wang L. Enzyme catalytic promiscuity: lipase catalyzed synthesis of substituted 2H-chromenes by a three-component reaction. RSC Adv 2014. [DOI: 10.1039/c4ra03367a] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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321
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Margot J, Bennati-Granier C, Maillard J, Blánquez P, Barry DA, Holliger C. Bacterial versus fungal laccase: potential for micropollutant degradation. AMB Express 2013; 3:63. [PMID: 24152339 PMCID: PMC3819643 DOI: 10.1186/2191-0855-3-63] [Citation(s) in RCA: 125] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 10/14/2013] [Indexed: 11/10/2022] Open
Abstract
Relatively high concentrations of micropollutants in municipal wastewater treatment plant (WWTP) effluents underscore the necessity to develop additional treatment steps prior to discharge of treated wastewater. Microorganisms that produce unspecific oxidative enzymes such as laccases are a potential means to improve biodegradation of these compounds. Four strains of the bacterial genus Streptomyces (S. cyaneus, S. ipomoea, S. griseus and S. psammoticus) and the white-rot fungus Trametes versicolor were studied for their ability to produce active extracellular laccase in biologically treated wastewater with different carbon sources. Among the Streptomyces strains evaluated, only S. cyaneus produced extracellular laccase with sufficient activity to envisage its potential use in WWTPs. Laccase activity produced by T. versicolor was more than 20 times greater, the highest activity being observed with ash branches as the sole carbon source. The laccase preparation of S. cyaneus (abbreviated LSc) and commercial laccase from T. versicolor (LTv) were further compared in terms of their activity at different pH and temperatures, their stability, their substrate range, and their micropollutant oxidation efficiency. LSc and LTv showed highest activities under acidic conditions (around pH 3 to 5), but LTv was active over wider pH and temperature ranges than LSc, especially at near-neutral pH and between 10 and 25°C (typical conditions found in WWTPs). LTv was also less affected by pH inactivation. Both laccase preparations oxidized the three micropollutants tested, bisphenol A, diclofenac and mefenamic acid, with faster degradation kinetics observed for LTv. Overall, T. versicolor appeared to be the better candidate to remove micropollutants from wastewater in a dedicated post-treatment step.
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322
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Franssen MCR, Steunenberg P, Scott EL, Zuilhof H, Sanders JPM. Immobilised enzymes in biorenewables production. Chem Soc Rev 2013; 42:6491-533. [DOI: 10.1039/c3cs00004d] [Citation(s) in RCA: 196] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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323
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Abradelo DG, Cao R, Schlecht S. One-to-one laccase–gold nanoparticle conjugates: molecular recognition and activity enhancement. RSC Adv 2013. [DOI: 10.1039/c3ra43192d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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324
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Zheng X, Wang Q, Jiang Y, Gao J. Biomimetic Synthesis of Magnetic Composite Particles for Laccase Immobilization. Ind Eng Chem Res 2012. [DOI: 10.1021/ie3000908] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Xiaobing Zheng
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Qi Wang
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China
| | - Yanjun Jiang
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China
- National Key Laboratory of Biochemical
Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
| | - Jing Gao
- School of Chemical Engineering, Hebei University of Technology, Tianjin 300130, China
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