1
|
Alvarado-Ramírez L, Rostro-Alanis MDJ, Rodríguez-Rodríguez J, Hernández Luna CE, Castillo-Zacarías C, Iqbal HMN, Parra-Saldívar R. Biotransformation of 2,4,6-Trinitrotoluene by a cocktail of native laccases from Pycnoporus sanguineus CS43 under oxygenic and non-oxygenic atmospheres. CHEMOSPHERE 2024; 352:141406. [PMID: 38367881 DOI: 10.1016/j.chemosphere.2024.141406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/19/2024]
Abstract
2,4,6-Trinitrotoluene (TNT) is a highly toxic nitroaromatic explosive known for its environmental consequences, contaminating soil and groundwater throughout its life cycle, from production to disposal. Therefore, the urgency of developing innovative and ecological strategies to remedy the affected areas is recognized. This study reports, for the first time, the enzymatic biotransformation of TNT by a cocktail of native laccases from Pycnoporus sanguineus CS43. The laccases displayed efficient TNT conversion under both oxygenic and non-oxygenic conditions, achieving biotransformation rates of 80% and 87% within 48 h at a temperature of 60 °C and pH 7. Preliminary kinetic constants were calculated with the laccase cocktail, being a Vmax of 1.133 μM min-1 and 0.2984 μM min-1, and the Km values were 1586 μM and 458 μM, in an oxygenic and non-oxygenic atmosphere, respectively. High-performance liquid chromatography-mass spectrometry (HPLC/MS) confirmed the formation of amino dinitrotoluene isomers and hydroxylamine isomers as biotransformation products. In summary, this study suggests the potential application of laccases for the direct biotransformation of recalcitrant compounds like TNT, offering an environmentally friendly approach to address contamination issues.
Collapse
Affiliation(s)
| | | | | | - Carlos Eduardo Hernández Luna
- Laboratorio de Enzimología, Facultad de Ciencias Biológicas, Universidad Autónoma de Nuevo León, Pedro de Alba y Manuel L. Barragán, Cd. Universitaria, 66451, San Nicolás de los Garza, Nuevo León, Mexico.
| | - Carlos Castillo-Zacarías
- Universidad Autónoma de Nuevo León, Facultad de Ingeniería Civil, Departamento de Ingeniería Ambiental, Ciudad Universitaria S/N, San Nicolás de los Garza, Nuevo León, C.P. 66455, Mexico.
| | - Hafiz M N Iqbal
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey, 64849, Mexico; Institute of Advanced Materials for Sustainable Manufacturing, Tecnologico de Monterrey, Monterrey, 64849, Mexico.
| | - Roberto Parra-Saldívar
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey, 64849, Mexico; Institute of Advanced Materials for Sustainable Manufacturing, Tecnologico de Monterrey, Monterrey, 64849, Mexico.
| |
Collapse
|
2
|
Wang X, Meng F, Zhang B, Xia Y. Elimination of tetracyclines in seawater by laccase-mediator system. CHEMOSPHERE 2023; 333:138916. [PMID: 37172624 DOI: 10.1016/j.chemosphere.2023.138916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 04/21/2023] [Accepted: 05/10/2023] [Indexed: 05/15/2023]
Abstract
Long-term exposure of antibiotics at low level leads to the accumulation of antibiotics in environmental media and organisms, inducing the formation of antibiotic resistance genes. Seawater is an important sink for many contaminants. Here, laccase from Aspergillus sp. And mediators that follow different oxidation mechanisms were combined to degrade tetracyclines (TCs) at environmentally relevant levels (ng·L-1-μg·L-1) in coastal seawater. The high salinity and alkaline of seawater changed the enzymatic structure of laccase, resulting in a reduced affinity of laccase to the substrate in seawater (Km of 0.0556 mmol L-1) than that in buffer (Km of 0.0181 mmol L-1). Although the stability and activity of the laccase decreased in seawater, laccase at a concentration of 200 U·L-1 with a laccase/syringaldehyde (SA) ratio of 1 U: 1 μmol could completely degrade TCs in seawater at initial concentrations of less than 2 μg L-1 in 2 h. Molecular docking simulation showed that the interaction between TCs and laccase mainly includes hydrogen bond interaction and hydrophobic interaction. TCs were degraded into small molecular products through a series of reactions: demethylation, deamination, deamidation, dehydration, hydroxylation, oxidation, and ring-opening. Prediction of the toxicity of intermediates showed that the majority of TCs can be degraded into low-toxic or non-toxic, small-molecule products within 1 h, indicating that the degradation process of TCs by a laccase-SA system has good ecological safety. The successful removal of TCs by the laccase-SA system demonstrates its potential for the elimination of pollutants in marine environment.
Collapse
Affiliation(s)
- Xiaotong Wang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Fanping Meng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China.
| | - Bo Zhang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| | - Yufan Xia
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Ocean University of China, Qingdao, 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao, 266100, China
| |
Collapse
|
3
|
Schallemberger JB, Libardi N, Dalari BLSK, Chaves MB, Nagel Hassemer ME. Textile azo dyes discolouration using spent mushroom substrate: enzymatic degradation and adsorption mechanisms. ENVIRONMENTAL TECHNOLOGY 2023; 44:1265-1286. [PMID: 34709981 DOI: 10.1080/09593330.2021.2000038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 10/15/2021] [Indexed: 06/13/2023]
Abstract
This study evaluated the adsorption and enzymatic degradation of azo dyes when using SMS. The laccase present in the SMS was characterised, and the maximum activity was obtained at pH 2, a temperature of 45°C, a Michaelis-Menten constant (Km) of 0.264 mM, and a maximum reaction rate (Vmax) of 117.95 µmol L-1 min-1. The presence of NaCl at 5 mM inhibited enzyme activity while no inhibition was observed by Na2SO4, typically found in textile wastewater. The maximum dye adsorption (57.22%) was achieved at pH 8.0, 25°C, and 100 g L-1 of SMS while the maximum enzymatic degradation (14.18%) was obtained under the same conditions, except at pH 4.0. The enzymes laccase, lignin peroxidase, and manganese peroxidase trapped in the SMS resulted in higher dye discolouration when compared to that extracted with aqueous solution, meaning that SMS has strong adsorption capacity and is a natural immobilisation matrix, which improves the enzymatic degradation of the dyes. Thus, SMS can be used in the treatment of textile effluents for dye removal by simultaneous mechanisms of adsorption and enzymatic degradation, with reduction of environmental impacts for SMS disposal and reduction of the costs associated with commercial enzymes and adsorbents.
Collapse
Affiliation(s)
| | - Nelson Libardi
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| | | | - Mariane Bonatti Chaves
- Department of Chemical Engineering, University of the Region of Joinville, Joinville, Brazil
| | - Maria Eliza Nagel Hassemer
- Department of Sanitary and Environmental Engineering, Federal University of Santa Catarina, Florianópolis, Brazil
| |
Collapse
|
4
|
Kyomuhimbo HD, Brink HG. Applications and immobilization strategies of the copper-centred laccase enzyme; a review. Heliyon 2023; 9:e13156. [PMID: 36747551 PMCID: PMC9898315 DOI: 10.1016/j.heliyon.2023.e13156] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 01/11/2023] [Accepted: 01/18/2023] [Indexed: 01/26/2023] Open
Abstract
Laccase is a multi-copper enzyme widely expressed in fungi, higher plants, and bacteria which facilitates the direct reduction of molecular oxygen to water (without hydrogen peroxide production) accompanied by the oxidation of an electron donor. Laccase has attracted attention in biotechnological applications due to its non-specificity and use of molecular oxygen as secondary substrate. This review discusses different applications of laccase in various sectors of food, paper and pulp, waste water treatment, pharmaceuticals, sensors, and fuel cells. Despite the many advantages of laccase, challenges such as high cost due to its non-reusability, instability in harsh environmental conditions, and proteolysis are often encountered in its application. One of the approaches used to minimize these challenges is immobilization. The various methods used to immobilize laccase and the different supports used are further extensively discussed in this review.
Collapse
|
5
|
Giménez P, Anguela S, Just-Borras A, Pons-Mercadé P, Vignault A, Canals JM, Teissedre PL, Zamora F. Development of a synthetic model to study browning caused by laccase activity from Botrytis cinerea. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112871] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
6
|
Wang H, Deng W, Shen M, Yan G, Zhao W, Yang Y. A laccase Gl-LAC-4 purified from white-rot fungus Ganoderma lucidum had a strong ability to degrade and detoxify the alkylphenol pollutants 4-n-octylphenol and 2-phenylphenol. JOURNAL OF HAZARDOUS MATERIALS 2021; 408:124775. [PMID: 33508740 DOI: 10.1016/j.jhazmat.2020.124775] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 06/12/2023]
Abstract
In this study, the ability of laccase Gl-LAC-4, purified from Ganoderma lucidum, to degrade and detoxify two representative alkylphenol pollutants, 4-n-octylphenol and 2-phenylphenol, was systematically studied. Gl-LAC-4 laccase had a very strong ability to degrade high concentrations of 4-n-octylphenol, 2-phenylphenol, and alkylphenol mixtures. The degradation speed of Gl-LAC-4 toward 2-phenylphenol was very fast. Gl-LAC-4 displayed strong tolerance for a variety of metal salts and organic solvents in the degradation of alkylphenols. Gl-LAC-4 showed strong tolerance for high concentrations of various metal salts, such as MgSO4, MnSO4, Na2SO4, CuSO4, ZnSO4, CdSO4, and K2SO4, in the degradation of 4-n-octylphenol and 2-phenylphenol.In the case of the same metal cation, the inhibitory effect of the metal salt with Cl- as the anion on the degradation of 4-n-octylphenol and 2-phenylphenol by laccase was stronger than that of the metal salt with SO42- as the anion. An increase in the number of chloride ions caused a greater inhibitory effect on alkylphenol degradation by laccase. Gl-LAC-4 exhibited strong tolerance for glycerol, ethylene glycol, butanediol, propylene glycol, and organic solvent mixtures in the degradation of alkylphenols. Gl-LAC-4 treatment significantly reduced or eliminated the phytotoxicity of 4-n-octylphenol and 2-phenylphenol.
Collapse
Affiliation(s)
- Hao Wang
- School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China
| | - Wei Deng
- School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China
| | - Mengheng Shen
- School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China
| | - Ge Yan
- School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China
| | - Wei Zhao
- School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China
| | - Yang Yang
- School of Life Sciences, Hubei Key Laboratory of Genetic Regulation and Integrative Biology, Central China Normal University, Wuhan 430079, China.
| |
Collapse
|
7
|
Onaizi SA. Statistical analyses of the effect of rhamnolipid biosurfactant addition on the enzymatic removal of Bisphenol A from wastewater. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.101929] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
8
|
Pose-Boirazian T, Eibes G, Barreiro-Piñeiro N, Díaz-Jullien C, Lema JM, Martínez-Costas J. Chemical and thermal stabilization of CotA laccase via a novel one-step expression and immobilization in muNS-Mi nanospheres. Sci Rep 2021; 11:2802. [PMID: 33531567 PMCID: PMC7854631 DOI: 10.1038/s41598-021-82468-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 01/20/2021] [Indexed: 11/30/2022] Open
Abstract
A methodology that programs eukaryotic or bacterial cells to encapsulate proteins of any kind inside micro/nanospheres formed by muNS-Mi viral protein was developed in our laboratory. In the present study such “in cellulo” encapsulation technology is utilized for immobilizing a protein with an enzymatic activity of industrial interest, CotA laccase. The encapsulation facilitates its purification, resulting in a cost-effective, one-step way of producing immobilized enzymes for industrial use. In addition to the ability to be recycled without activity loss, the encapsulated protein showed an increased pH working range and high resistance to chemical inactivation. Also, its activity was almost unaffected after 30 min incubation at 90 °C and 15 min at the almost-boiling temperature of 95 °C. Furthermore, the encapsulated laccase was able to efficiently decolorate the recalcitrant dye RB19 at room temperature.
Collapse
Affiliation(s)
- Tomás Pose-Boirazian
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Bioquímica y Biología Molecular, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Gemma Eibes
- CRETUS Institute, Dept. of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Natalia Barreiro-Piñeiro
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Bioquímica y Biología Molecular, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Cristina Díaz-Jullien
- Centro de Investigación en Bioloxía (CiBUS), Departamento de Bioquímica y Biología Molecular, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Juan M Lema
- CRETUS Institute, Dept. of Chemical Engineering, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Jose Martínez-Costas
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Departamento de Bioquímica y Biología Molecular, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain.
| |
Collapse
|
9
|
Onaizi SA, Alshabib M. The degradation of bisphenol A by laccase: Effect of biosurfactant addition on the reaction kinetics under various conditions. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117785] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
10
|
Tülek A, Karataş E, Çakar MM, Aydın D, Yılmazcan Ö, Binay B. Optimisation of the Production and Bleaching Process for a New Laccase from Madurella mycetomatis, Expressed in Pichia pastoris: from Secretion to Yielding Prominent. Mol Biotechnol 2020; 63:24-39. [PMID: 33058020 DOI: 10.1007/s12033-020-00281-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2020] [Indexed: 01/06/2023]
Abstract
Laccases are polyphenol oxidoreductases used in a number of industrial applications. Due to the increasing demand for these "green catalysis" enzymes, the identification and biochemical characterisation of their novel properties is essential. In our study, cloned Madurella mycetomatis laccase (mmlac) genes were heterologously expressed in the methylotrophic yeast host Pichia pastoris. The high yield of the active recombinant protein in P. pastoris demonstrates the efficiency of a reliably constructed plasmid to express the laccase gene. The optimal biochemical conditions for the successfully expressed MmLac enzyme were identified. Detailed structural properties of the recombinant laccase were determined, and its utility in decolourisation and textile bleaching applications was examined. MmLac demonstrates good activity in an acidic pH range (4.0-6.0); is stable in the presence of cationic metals, organic solvents and under high temperatures (50-60 °C); and is stable for long-term storage at - 20 °C and - 80 °C for up to eight weeks. The structural analysis revealed that the catalytic residues are partially similar to other laccases. MmLac resulted in an increase in whiteness, whilst demonstrating high efficiency and stability and requiring the input of fewer chemicals. The performance of this enzyme makes it worthy of investigation for use in textile biotechnology applications, as well as within environmental and food technologies.
Collapse
Affiliation(s)
- Ahmet Tülek
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Ersin Karataş
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Mehmet Mervan Çakar
- Department of Molecular Biology and Genetics, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Derya Aydın
- Ak-Kim Kimya San. Ve Tic. A.S., 77600, Çiftlikköy, Yalova, Turkey
| | - Özlem Yılmazcan
- Ak-Kim Kimya San. Ve Tic. A.S., 77600, Çiftlikköy, Yalova, Turkey
| | - Barış Binay
- Department of Bioengineering, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey.
| |
Collapse
|
11
|
Arredondo-Santoyo M, Herrera-Camacho J, Vázquez-Garcidueñas MS, Vázquez-Marrufo G. Corn stover induces extracellular laccase activity in Didymosphaeria sp. (syn. = Paraconiothyrium sp.) and exhibits increased in vitro ruminal digestibility when treated with this fungal species. Folia Microbiol (Praha) 2020; 65:849-861. [DOI: 10.1007/s12223-020-00795-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 04/27/2020] [Indexed: 11/28/2022]
|
12
|
Valles M, Kamaruddin AF, Wong LS, Blanford CF. Inhibition in multicopper oxidases: a critical review. Catal Sci Technol 2020. [DOI: 10.1039/d0cy00724b] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This review critiques the literature on inhibition of O2-reduction catalysis in multicopper oxidases like laccase and bilirubin oxidase and provide recommendations for best practice when carrying out experiments and interpreting published data.
Collapse
Affiliation(s)
- Morgane Valles
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Chemistry
| | - Amirah F. Kamaruddin
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Materials
| | - Lu Shin Wong
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Chemistry
| | - Christopher F. Blanford
- Manchester Institute of Biotechnology
- University of Manchester
- Manchester
- UK
- Department of Materials
| |
Collapse
|
13
|
Li Z, Jiang S, Xie Y, Fang Z, Xiao Y, Fang W, Zhang X. Mechanism of the salt activation of laccase Lac15. Biochem Biophys Res Commun 2020; 521:997-1002. [DOI: 10.1016/j.bbrc.2019.11.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2019] [Accepted: 11/03/2019] [Indexed: 01/08/2023]
|
14
|
Comparison of Direct and Mediated Electron Transfer for Bilirubin Oxidase from Myrothecium Verrucaria. Effects of Inhibitors and Temperature on the Oxygen Reduction Reaction. Catalysts 2019. [DOI: 10.3390/catal9121056] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
One of the processes most studied in bioenergetic systems in recent years is the oxygen reduction reaction (ORR). An important challenge in bioelectrochemistry is to achieve this reaction under physiological conditions. In this study, we used bilirubin oxidase (BOD) from Myrothecium verrucaria, a subclass of multicopper oxidases (MCOs), to catalyse the ORR to water via four electrons in physiological conditions. The active site of BOD, the T2/T3 cluster, contains three Cu atoms classified as T2, T3α, and T3β depending on their spectroscopic characteristics. A fourth Cu atom; the T1 cluster acts as a relay of electrons to the T2/T3 cluster. Graphite electrodes were modified with BOD and the direct electron transfer (DET) to the enzyme, and the mediated electron transfer (MET) using an osmium polymer (OsP) as a redox mediator, were compared. As a result, an alternative resting (AR) form was observed in the catalytic cycle of BOD. In the absence and presence of the redox mediator, the AR direct reduction occurs through the trinuclear site (TNC) via T1, specifically activated at low potentials in which T2 and T3α of the TNC are reduced and T3β is oxidized. A comparative study between the DET and MET was conducted at various pH and temperatures, considering the influence of inhibitors like H2O2, F−, and Cl−. In the presence of H2O2 and F−, these bind to the TNC in a non-competitive reversible inhibition of O2. Instead; Cl− acts as a competitive inhibitor for the electron donor substrate and binds to the T1 site.
Collapse
|
15
|
Pinto PA, Bezerra RMF, Dias AA. Discrimination between rival laccase inhibition models from data sets with one inhibitor concentration using a penalized likelihood analysis and Akaike weights. BIOCATAL BIOTRANSFOR 2018. [DOI: 10.1080/10242422.2018.1425401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Paula A. Pinto
- Centre for the Research and Technology of Agro-Environment and Biological Sciences – CITAB, Universidade de Trás-os-Montes e Alto Douro – UTAD, Vila Real, Portugal
| | - Rui M. F. Bezerra
- Centre for the Research and Technology of Agro-Environment and Biological Sciences – CITAB, Universidade de Trás-os-Montes e Alto Douro – UTAD, Vila Real, Portugal
| | - Albino A. Dias
- Centre for the Research and Technology of Agro-Environment and Biological Sciences – CITAB, Universidade de Trás-os-Montes e Alto Douro – UTAD, Vila Real, Portugal
| |
Collapse
|
16
|
Kashima K, Fujisaki T, Serrano-Luginbühl S, Khaydarov A, Kissner R, Ležaić AJ, Bajuk-Bogdanović D, Ćirić-Marjanović G, Schuler LD, Walde P. How experimental details matter. The case of a laccase-catalysed oligomerisation reaction. RSC Adv 2018; 8:33229-33242. [PMID: 35548148 PMCID: PMC9086443 DOI: 10.1039/c8ra05731a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/17/2018] [Indexed: 01/29/2023] Open
Abstract
The Trametes versicolor laccase (TvL)-catalysed oligomerisation of the aniline dimer p-aminodiphenylamine (PADPA) was investigated in an aqueous medium of pH = 3.5, containing 80–100 nm-sized anionic vesicles formed from AOT, the sodium salt of bis(2-ethylhexyl)sulfosuccinic acid. If run under optimal conditions, the reaction yields oligomeric products which resemble the emeraldine salt form of polyaniline (PANI-ES) in its polaron state, known to be the only oxidation state of linear PANI which is electrically conductive. The vesicles serve as “templates” for obtaining products with the desired PANI-ES-like features. For this complex, heterogeneous, vesicle-assisted, and enzyme-mediated reaction, in which dissolved dioxygen also takes part as a re-oxidant for TvL, small changes in the composition of the reaction mixture can have significant effects. Initial conditions may not only affect the kinetics of the reaction, but also the outcome, i.e., the product distribution once the reaction reaches its equilibrium state. While a change in the reaction temperature from T ≈ 25 to 5 °C mainly influenced the rate of reaction, increase in enzyme concentration and the presence of millimolar concentrations of chloride ions were found to have significant undesired effects on the outcome of the reaction. Chloride ions, which may originate from the preparation of the pH = 3.5 solution, inhibit TvL, such that higher TvL concentrations are required than without chloride to yield the same product distribution for the same reaction runtime as in the absence of chloride. With TvL concentrations much higher than the elaborated value, the products obtained clearly were different and over-oxidised. Thus, a change in the activity of the enzyme was found to have influence not only on kinetics but also led to a change in the final product distribution, molecular structure and electrical properties, which was a surprising find. The complementary analytical methods which we used in this work were in situ UV/vis/NIR, EPR, and Raman spectroscopy measurements, in combination with a detailed ex situ HPLC analysis and molecular dynamics simulations. With the results obtained, we would like to recall the often neglected or ignored fact that it is important to describe and pay attention to the experimental details, since this matters for being able to perform experiments in a reproducible way. A laccase-catalysed oligomerisation of p-aminodiphenylamine was investigated in an aqueous medium containing 80–100 nm-sized anionic vesicles formed from AOT, the sodium salt of bis(2-ethylhexyl)sulfosuccinic acid.![]()
Collapse
Affiliation(s)
- Keita Kashima
- Department of Materials
- ETH Zurich
- 8093 Zürich
- Switzerland
- Department of Materials Chemistry and Bioengineering
| | - Tomoyuki Fujisaki
- Department of Materials
- ETH Zurich
- 8093 Zürich
- Switzerland
- Department of Materials Chemistry and Bioengineering
| | | | | | - Reinhard Kissner
- Laboratory of Inorganic Chemistry
- Department of Chemistry and Applied Biosciences
- 8093 Zürich
- Switzerland
| | | | | | | | | | - Peter Walde
- Department of Materials
- ETH Zurich
- 8093 Zürich
- Switzerland
| |
Collapse
|
17
|
Halides inhibition of multicopper oxidases studied by FTIR spectroelectrochemistry using azide as an active infrared probe. J Biol Inorg Chem 2017; 22:1179-1186. [DOI: 10.1007/s00775-017-1494-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Accepted: 09/19/2017] [Indexed: 10/18/2022]
|
18
|
Affiliation(s)
- Nicolas Mano
- CNRS, CRPP, UPR 8641, 33600 Pessac, France
- University of Bordeaux, CRPP, UPR 8641, 33600 Pessac, France
| | - Anne de Poulpiquet
- Aix Marseille Univ., CNRS, BIP, 31, chemin Aiguier, 13402 Marseille, France
| |
Collapse
|
19
|
Li J, Xie Y, Wang R, Fang Z, Fang W, Zhang X, Xiao Y. Mechanism of salt-induced activity enhancement of a marine-derived laccase, Lac15. EUROPEAN BIOPHYSICS JOURNAL: EBJ 2017; 47:225-236. [PMID: 28875401 DOI: 10.1007/s00249-017-1251-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 08/07/2017] [Accepted: 08/23/2017] [Indexed: 10/18/2022]
Abstract
Laccase (benzenediol: oxygen oxidoreductases, EC1.10.3.2) is a multi-copper oxidase capable of oxidizing a variety of phenolic and other aromatic organic compounds. The catalytic power of laccase makes it an attractive candidate for potential applications in many areas of industry including biodegradation of organic pollutants and synthesis of novel drugs. Most laccases are vulnerable to high salt and have limited applications. However, some laccases are not only tolerant to but also activated by certain concentrations of salt and thus have great application potential. The mechanisms of salt-induced activity enhancement of laccases are unclear as yet. In this study, we used dynamic light scattering, size exclusion chromatography, analytical ultracentrifugation, intrinsic fluorescence emission, circular dichroism, ultraviolet-visible light absorption, and an enzymatic assay to investigate the potential correlation between the structure and activity of the marine-derived laccase, Lac15, whose activity is promoted by low concentrations of NaCl. The results showed that low concentrations of NaCl exert little influence on the protein structure, which was partially folded in the absence of the salt; moreover, the partially folded rather than the fully folded state seemed to be favorable for enzyme activity, and this partially folded state was distinctive from the so-called 'molten globule' occasionally observed in active enzymes. More data indicated that salt might promote laccase activity through mechanisms involving perturbation of specific local sites rather than a change in global structure. Potential binding sites for chloride ions and their roles in enzyme activity promotion are proposed.
Collapse
Affiliation(s)
- Jie Li
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China
| | - Yanan Xie
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China
| | - Rui Wang
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China
| | - Zemin Fang
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China
| | - Wei Fang
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China.,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China
| | - Xuecheng Zhang
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China. .,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China. .,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China.
| | - Yazhong Xiao
- School of Life Sciences, Anhui University, 111 Jiulong Road, Hefei, 230601, Anhui, China. .,Anhui Provincial Engineering Technology Research Center of Microorganisms and Biocatalysis, 111 Jiulong Road, Hefei, 230601, Anhui, China. .,Anhui Key Laboratory of Modern Biomanufacturing, 111 Jiulong Road, Hefei, 230601, Anhui, China.
| |
Collapse
|
20
|
Identification of a novel copper-activated and halide-tolerant laccase in Geobacillus thermopakistaniensis. Extremophiles 2017; 21:563-571. [DOI: 10.1007/s00792-017-0925-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2016] [Accepted: 03/06/2017] [Indexed: 10/19/2022]
|
21
|
Borón I, Wirth S, Battaglini F. Versatile Electrochemical Platform for the Determination of Phenol-like Compounds Based on Laccases from Different Origins. ELECTROANAL 2016. [DOI: 10.1002/elan.201600470] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ignacio Borón
- INQUIMAE - Departamento de Química Inorgánica; Analítica y Química Física
| | - Sonia Wirth
- Departamento de Fisiología Biología Molecular y Celular, IBBEA-CONICET, Facultad de Ciencias Exactas y Naturales; Universidad de Buenos Aires, Ciudad Universitaria; Pabellón 2 C1428EHA Buenos Aires Argentina
| | | |
Collapse
|
22
|
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]
|
23
|
Struch M, Krahe NK, Linke D, Mokoonlall A, Hinrichs J, Berger RG. Dose dependent effects of a milk ion tolerant laccase on yoghurt gel structure. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2015.10.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
24
|
Zheng M, Griveau S, Dupont-Gillain C, Genet MJ, Jolivalt C. Oxidation of laccase for improved cathode biofuel cell performances. Bioelectrochemistry 2015; 106:77-87. [DOI: 10.1016/j.bioelechem.2015.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2014] [Revised: 05/07/2015] [Accepted: 06/01/2015] [Indexed: 11/27/2022]
|
25
|
Chen Y, Zhang Q, Zhang Y, Chen J, Zhang D, Tong J. Changes in fibrolytic enzyme activity during vermicomposting of maize stover by an anecic earthworm Amynthas hupeiensis. Polym Degrad Stab 2015. [DOI: 10.1016/j.polymdegradstab.2015.06.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
26
|
Continuous Decolorization of Acid Blue 62 Solution in an Enzyme Membrane Reactor. Appl Biochem Biotechnol 2015; 177:237-52. [PMID: 26245258 PMCID: PMC4549384 DOI: 10.1007/s12010-015-1741-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 06/30/2015] [Indexed: 11/15/2022]
Abstract
This paper focuses on using an enzyme membrane reactor (EMR) for the effective continuous decolorization of Acid Blue 62 (AB62). The following factors were considered for the effective use of Cerrena unicolor laccase immobilized in the EMR volume: the enzyme was stable in six successive runs in a batch reactor; no aeration was necessary; AB62 and the oxidized products were sorbed onto the membrane but were not rejected; and the enzyme was stable in the EMR system. It is obvious that any continuous process must be predictable, and thus, the objective was to verify the process model experimentally. For this reason, a proper isoenzyme kinetic equation was selected and the parameters were evaluated. The obtained kinetic parameters were used to plan processes and to verify their applicability to long-term AB62 decolorization, and a very good agreement between the calculated and the measured data was obtained. In the main designed continuous decolorization process, the conversion reached 98 % and was stable for 4 days. The membrane reactor with C. unicolor laccase appears to be very promising for AB62 decolorization.
Collapse
|
27
|
Lončar N, Božić N, Lopez-Santin J, Vujčić Z. Bacillus amyloliquefaciens laccase--from soil bacteria to recombinant enzyme for wastewater decolorization. BIORESOURCE TECHNOLOGY 2013; 147:177-183. [PMID: 23994699 DOI: 10.1016/j.biortech.2013.08.056] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2013] [Revised: 08/05/2013] [Accepted: 08/08/2013] [Indexed: 06/02/2023]
Abstract
One hundred wild type strains of Bacillus sp. were isolated from industrial and agricultural soil across Serbia and screened for laccase activity. Three strains showed high laccase activity temperature optimum of 65 and 80 °C towards ABTS. A new laccase gene from the strain with highest temperature optimum, namely Bacillus amyloliquefaciens 12B was cloned and expressed in Escherichia coli. Recombinant laccase degraded dye Reactive blue 52 at pH 7.0 and pH 4.0 and at elevated temperature, while fungal laccases was unable to act on this substrate at pH higher than 4.0 and was quickly inactivated at temperatures higher than 45 °C. Degradation of dye was monitored by HPLC-DAD and resulting precipitate was analyzed by FTIR spectroscopy. Single product peak without chromophore was detected in solution, while water insoluble aggregate, presumably dye polymer is formed retaining blue color.
Collapse
Affiliation(s)
- Nikola Lončar
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia.
| | - Nataša Božić
- Institute of Chemistry, Technology and Metallurgy-Center of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia
| | - Josep Lopez-Santin
- Departament d'Enginyeria Química, Escola d'Enginyeria, Universitat Autònoma de Barcelona, Edifici Q, 08193 Bellaterra, Spain
| | - Zoran Vujčić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia
| |
Collapse
|
28
|
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.
Collapse
|
29
|
Si J, Cui BK. A new fungal peroxidase with alkaline-tolerant, chloride-enhancing activity and dye decolorization capacity. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.molcatb.2012.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
30
|
Durand F, Gounel S, Mano N. Purification and characterization of a new laccase from the filamentous fungus Podospora anserina. Protein Expr Purif 2012; 88:61-6. [PMID: 23220637 DOI: 10.1016/j.pep.2012.11.016] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2012] [Revised: 11/22/2012] [Accepted: 11/27/2012] [Indexed: 11/28/2022]
Abstract
A new laccase from the filamentous fungus Podospora anserina has been isolated and identified. The 73 kDa protein containing 4 coppers, truncated from its first 31 amino acids, was successfully overexpressed in Pichia pastoris and purified in one step with a yield of 48% and a specific activity of 644Umg(-1). The kinetic parameters, k(cat) and K(M), determined at 37 °C and optimal pH are 1372 s(-1) and 307 μM for ABTS and, 1.29 s(-1) and 10.9 μM, for syringaldazine (SGZ). Unlike other laccases, the new protein displays a better thermostability, with a half life>400 min at 37 °C, is less sensitive to chloride and more stable at pH 7. Even though, the new 566 amino-acid enzyme displays a large homology with Bilirubin oxidase (BOD) from Myrothecium verrucaria (58%) and exhibits the four histidine rich domains consensus sequences of BODs, the new enzyme is not able to oxidize neither conjugated nor unconjugated bilirubin.
Collapse
|
31
|
A mechanism for NaCl inhibition of Reactive Blue 19 decolorization and ABTS oxidation by laccase. Appl Microbiol Biotechnol 2012; 97:6263-9. [DOI: 10.1007/s00253-012-4525-y] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2012] [Revised: 10/13/2012] [Accepted: 10/15/2012] [Indexed: 10/27/2022]
|
32
|
Fang ZM, Li TL, Chang F, Zhou P, Fang W, Hong YZ, Zhang XC, Peng H, Xiao YZ. A new marine bacterial laccase with chloride-enhancing, alkaline-dependent activity and dye decolorization ability. BIORESOURCE TECHNOLOGY 2012; 111:36-41. [PMID: 22377476 DOI: 10.1016/j.biortech.2012.01.172] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2011] [Revised: 01/25/2012] [Accepted: 01/27/2012] [Indexed: 05/21/2023]
Abstract
A bacterial laccase gene designated as lac21 was screened from a marine microbial metagenomic library of the South China Sea based on sequence screening strategy. The protein encoded by lac21 shared less than 40% sequence identities with all of the laccases found. Lac21, which was recombinantly expressed in Escherichia coli, showed high activity toward syringaldazine at an optimum pH of 7.5 and temperature of 45°C. Lac21 was stable at pH values ranging from 5.5 to 9.0 and temperatures lower than 40°C. Interestingly, chloride enhanced the laccase activity, with concomitant increase in substrate affinity. Furthermore, Lac21 has high decolorization capability toward azo dyes in the absence of redox mediators, with 80% of Reactive Deep Blue M-2GE (50mg/L) being decolorized by 15U/L enzyme after 24h incubation at 20°C. These unusual properties demonstrate that the new bacterial laccase Lac21 has potentials in specific industrial or environmental applications.
Collapse
Affiliation(s)
- Ze-Min Fang
- School of Life Sciences, Anhui University, Hefei, Anhui 230039, China
| | | | | | | | | | | | | | | | | |
Collapse
|