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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: 9] [Impact Index Per Article: 9.0] [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.
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2
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Imam A, Suman SK, Singh R, Vempatapu BP, Ray A, Kanaujia PK. Application of laccase immobilized rice straw biochar for anthracene degradation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 268:115827. [PMID: 33096462 DOI: 10.1016/j.envpol.2020.115827] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 10/07/2020] [Accepted: 10/10/2020] [Indexed: 06/11/2023]
Abstract
The present study explores the immobilization of ligninolytic enzyme-laccase on the surface of rice straw biochar and evaluates its application for anthracene biodegradation. The rice straw biochar was acid-treated to generate carboxyl functionality on its surface, followed by detailed morphological and chemical characterization. The surface area of functionalized biochar displayed a two-fold increase compared to the untreated biochar. Laccase was immobilized on functionalized biochar, and an immobilization yield of 66% was obtained. The immobilized enzyme demonstrated operational stability up to six cycles while retaining 40% of the initial activity. Laccase immobilization was further investigated by performing adsorption and kinetic studies, which revealed the highest immobilization concentration of 500 U g-1 at 25 °C. The adsorption followed the Langmuir isotherm model at equilibrium, and the kinetic study confirmed pseudo-second-order kinetics. The equilibrium rate constant (K2) at 25 °C and 4 °C were 3.6 × 10-3 g U-1 min-1 and 4 × 10-3 g U-1 min-1 respectively for 100 U g-1 of enzyme loading. This immobilized system was applied for anthracene degradation in the aqueous batch mode, which resulted in complete degradation of 50 mg L-1 anthracene within 24 h of interaction exposure.
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Affiliation(s)
- Arfin Imam
- Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Material Resource Efficiency Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002, India
| | - Sunil Kumar Suman
- Material Resource Efficiency Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India
| | - Raghuvir Singh
- Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India
| | - Bhanu Prasad Vempatapu
- Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India
| | - Anjan Ray
- Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002, India
| | - Pankaj K Kanaujia
- Analytical Sciences Division, Indian Institute of Petroleum, Council of Scientific and Industrial Research, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Ghaziabad, 201002, India.
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3
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Zhang Y, Piao M, He L, Yao L, Piao T, Liu Z, Piao Y. Immobilization of laccase on magnetically separable biochar for highly efficient removal of bisphenol A in water. RSC Adv 2020; 10:4795-4804. [PMID: 35495269 PMCID: PMC9049069 DOI: 10.1039/c9ra08800h] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Accepted: 01/10/2020] [Indexed: 01/24/2023] Open
Abstract
Laccase was stably immobilized on a cost effective and nanosized magnetic biochar (L-MBC) by adsorption, precipitation and crosslinking, and it was used for high performance BPA removal.
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Affiliation(s)
- Yu Zhang
- Key Laboratory of Groundwater Resources and Environment (Jilin University)
- Ministry of Education
- Jilin Provincial Key Laboratory of Water Resources and Environment
- College of New Energy and Environment
- Jilin University
| | - Mingyue Piao
- Key Laboratory of Groundwater Resources and Environment (Jilin University)
- Ministry of Education
- Jilin Provincial Key Laboratory of Water Resources and Environment
- College of New Energy and Environment
- Jilin University
| | - Lingzhi He
- Key Laboratory of Groundwater Resources and Environment (Jilin University)
- Ministry of Education
- Jilin Provincial Key Laboratory of Water Resources and Environment
- College of New Energy and Environment
- Jilin University
| | - Lan Yao
- Key Laboratory of Groundwater Resources and Environment (Jilin University)
- Ministry of Education
- Jilin Provincial Key Laboratory of Water Resources and Environment
- College of New Energy and Environment
- Jilin University
| | - Tiezhu Piao
- Department of Biological and Chemical Engineering
- Yanbian University of Science and Technology
- Yanji 133000
- China
| | - Zairan Liu
- Key Laboratory of Groundwater Resources and Environment (Jilin University)
- Ministry of Education
- Jilin Provincial Key Laboratory of Water Resources and Environment
- College of New Energy and Environment
- Jilin University
| | - Yunxian Piao
- Key Laboratory of Groundwater Resources and Environment (Jilin University)
- Ministry of Education
- Jilin Provincial Key Laboratory of Water Resources and Environment
- College of New Energy and Environment
- Jilin University
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4
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Ghosh P, Ghosh U. Immobilization of Purified Fungal Laccase on Cost Effective Green Coconut Fiber and Study of its Physical and Kinetic Characteristics in Both Free and Immobilized Form. ACTA ACUST UNITED AC 2019. [DOI: 10.2174/2211550108666190201151816] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Abstract
Background:
Laccases are important enzymes that have numerous applications in different
biotechnological sectors.
Objective:
The aim was to purify laccase from Aspergillus flavus PUF5, successfully immobilize it on
coconut fiber and characterize different physical and kinetic properties under both free and immobilize
conditions.
Methods:
Laccase from A. flavus PUF5 was purified using ammonium sulfate precipitation, followed
by DEAE column chromatography and gel filtration using Sephadex G100. The molecular weight was
determined through SDS-PAGE (12%). It was immobilized on pretreated coconut fiber through crosslinking
by glutaraldehyde (4% v/v). Physical and kinetic parameters like optimum temperature, pH,
thermostability, the effect of additives, activation energy, Km and Vmax for free and immobilized laccase
were also analyzed. Recycling stability of the immobilized laccase was further determined.
Results:
The extracellular laccase (65 kDa) was purified up to homogeneity and was immobilized on
acid-pretreated coconut fiber by 4% (v/v) glutaraldehyde solution at 30°C, pH 5.0. Activation energy
(Ea) of free and immobilized laccase for oxidation of guaiacol was found to be 24.69 and 32.76 kJ mol-1
respectively. Immobilized laccase showed higher melting temperature (Tm) of (82.5°C) than free enzyme
(73°C). Km and Vmax for free and immobilized laccase were found to be 0.67 mM, 0.70 mM
and 280 U/mg, 336 U/mg respectively when guaiacol was used as substrate. Additionally, in immobilized
condition laccase retained ˃80% of its initial activity after use till six repeated cycles.
Conclusion:
The purified laccase enzyme and the cheap immobilization seem to be a prospective process
for different biotechnological and industrial applications.
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Affiliation(s)
- Priyanka Ghosh
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata-700032, West Bengal, India
| | - Uma Ghosh
- Department of Food Technology & Biochemical Engineering, Jadavpur University, Kolkata-700032, West Bengal, India
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5
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Enhanced Performance of Rhizopus oryzae Lipase by Reasonable Immobilization on Magnetic Nanoparticles and Its Application in Synthesis 1,3-Diacyglycerol. Appl Biochem Biotechnol 2019; 188:677-689. [DOI: 10.1007/s12010-018-02947-2] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Accepted: 12/26/2018] [Indexed: 11/26/2022]
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6
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Mbanjwa MB, Land KJ, Windvoel T, Papala PM, Fourie L, Korvink JG, Visser D, Brady D. Production of self-immobilised enzyme microspheres using microfluidics. Process Biochem 2018. [DOI: 10.1016/j.procbio.2018.03.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Zhu Y, Song J, Zhang J, Yang J, Zhao W, Guo H, Xu T, Zhou X, Zhang L. Encapsulation of laccase within zwitterionic poly-carboxybetaine hydrogels for improved activity and stability. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01460d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Encapsulation of laccase within zwitterionic PCB hydrogels for improved activity, affinity and stability.
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Affiliation(s)
- Yingnan Zhu
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Jiayin Song
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Jiamin Zhang
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Jing Yang
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Weiqiang Zhao
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Hongshuang Guo
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Tong Xu
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
| | - Xiao Zhou
- Key Laboratory of Systems Bioengineering (Ministry of Education)
- Tianjin University
- Tianjin
- PR China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin)
| | - Lei Zhang
- Department of Biochemical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
- Tianjin 300072
- PR China
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8
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Taheran M, Naghdi M, Brar SK, Knystautas EJ, Verma M, Surampalli RY. Degradation of chlortetracycline using immobilized laccase on Polyacrylonitrile-biochar composite nanofibrous membrane. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 605-606:315-321. [PMID: 28668742 DOI: 10.1016/j.scitotenv.2017.06.185] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Revised: 06/18/2017] [Accepted: 06/22/2017] [Indexed: 06/07/2023]
Abstract
The continuous release of antibiotic compounds through wastewater effluent into environment has raised concerns about their potential problems for different organisms. Enzymatic degradation with laccase is a green option for removal of pharmaceutical compounds from aqueous media. In this study, laccase was immobilized onto homemade Polyacrylonitrile-biochar composite nanofibrous membrane and the obtained biocatalyst was employed for removal of chlortetracycline, a widely used antibiotic, from aqueous media in continuous mode. The results showed that the immobilized laccase has improved storage, temperature and pH stability compared to free laccase. Also, it retained more than 50% of its initial activity after 7cycles of ABTS oxidation which indicated improved enzyme reusability. Finally, while using immobilized laccase for degradation of chlortetracycline in continuous mode exhibited 58.3%, 40.7% and 22.6% chlortetracycline removal efficiency at flux rates of 1, 2 and 3mL/h∙cm2.
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Affiliation(s)
- M Taheran
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, Canada G1K 9A9
| | - M Naghdi
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, Canada G1K 9A9
| | - S K Brar
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec, Canada G1K 9A9.
| | - E J Knystautas
- Département de Physique, Université Laval, Québec G1K 7P4, Canada
| | - M Verma
- CO2 Solutions Inc., 2300, rue Jean-Perrin, Québec, Québec G2C 1T9, Canada
| | - R Y Surampalli
- Department of Civil Engineering, University of Nebraska-Lincoln, N104 SEC PO Box 886105, Lincoln, NE, 68588-6105, USA
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9
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Naghdi M, Taheran M, Brar SK, Kermanshahi-Pour A, Verma M, Surampalli RY. Immobilized laccase on oxygen functionalized nanobiochars through mineral acids treatment for removal of carbamazepine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 584-585:393-401. [PMID: 28117156 DOI: 10.1016/j.scitotenv.2017.01.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/03/2017] [Accepted: 01/04/2017] [Indexed: 05/28/2023]
Abstract
Biocatalytic treatment with oxidoreductase enzymes, especially laccases are an environmentally benign method for biodegradation of pharmaceutical compounds, such as carbamazepine to less harmful compounds. However, enzymes are required to be immobilized on supports to be reusable and maintain their activity. Functionalization of support prior to immobilization of enzyme is highly important because of biomolecule-support interface on enzyme activity and stability. In this work, the effect of oxidation of nanobiochar, a carbonaceous material produced by biomass pyrolysis, using HCl, H2SO4, HNO3 and their mixtures on immobilization of laccase has been studied. Scanning electron microscopy indicated that the structure of nanobiochars remained intact after oxidation and Fourier transform infrared spectroscopy confirmed the formation of carboxylic groups because of acid treatment. Titration measurements showed that the sample treated with H2SO4/HNO3 (50:50, v/v) had the highest number of carboxylic groups (4.7mmol/g) and consequently the highest efficiency for laccase immobilization. Additionally, it was observed that the storage, pH and thermal stability of immobilized laccase on functionalized nanobiochar was improved compared to free laccase showing its potential for continuous applications. The reusability tests towards oxidation of 2, 2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) showed that the immobilized laccase preserved 70% of the initial activity after 3cycles. Finally, using immobilized laccase for degradation of carbamazepine exhibited 83% and 86% removal in spiked water and secondary effluent, respectively.
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Affiliation(s)
- Mitra Naghdi
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - Mehrdad Taheran
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada
| | - Satinder K Brar
- INRS-ETE, Université du Québec, 490, Rue de la Couronne, Québec G1K 9A9, Canada.
| | - Azadeh Kermanshahi-Pour
- Biorefining and Remediation Laboratory, Department of Process Engineering and Applied Science, Dalhousie University, 1360 Barrington Street, Halifax, Nova Scotia B3J 1Z1, Canada
| | - M Verma
- CO(2) Solutions Inc., 2300, Rue Jean-Perrin, Québec, Québec G2C 1T9, Canada
| | - R Y Surampalli
- Department of Civil Engineering, University of Nebraska-Lincoln, N104 SEC PO Box 886105, Lincoln, NE 68588-6105, US
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10
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Green and mild laccase-catalyzed aerobic oxidative coupling of benzenediol derivatives with various sodium benzenesulfinates. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2016.11.119] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Nguyen LN, Hai FI, Dosseto A, Richardson C, Price WE, Nghiem LD. Continuous adsorption and biotransformation of micropollutants by granular activated carbon-bound laccase in a packed-bed enzyme reactor. BIORESOURCE TECHNOLOGY 2016; 210:108-116. [PMID: 26803903 DOI: 10.1016/j.biortech.2016.01.014] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Revised: 01/05/2016] [Accepted: 01/06/2016] [Indexed: 06/05/2023]
Abstract
Laccase was immobilized on granular activated carbon (GAC) and the resulting GAC-bound laccase was used to degrade four micropollutants in a packed-bed column. Compared to the free enzyme, the immobilized laccase showed high residual activities over a broad range of pH and temperature. The GAC-bound laccase efficiently removed four micropollutants, namely, sulfamethoxazole, carbamazepine, diclofenac and bisphenol A, commonly detected in raw wastewater and wastewater-impacted water sources. Mass balance analysis showed that these micropollutants were enzymatically degraded following adsorption onto GAC. Higher degradation efficiency of micropollutants by the immobilized compared to free laccase was possibly due to better electron transfer between laccase and substrate molecules once they have adsorbed onto the GAC surface. Results here highlight the complementary effects of adsorption and enzymatic degradation on micropollutant removal by GAC-bound laccase. Indeed laccase-immobilized GAC outperformed regular GAC during continuous operation of packed-bed columns over two months (a throughput of 12,000 bed volumes).
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Affiliation(s)
- Luong N Nguyen
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong (UOW), NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong (UOW), NSW 2522, Australia.
| | - Anthony Dosseto
- Wollongong Isotope Geochronology Laboratory, School of Earth and Environmental Sciences, UOW, NSW 2522, Australia
| | | | - William E Price
- Strategic Water Infrastructure Laboratory, School of Chemistry, UOW, NSW 2522, Australia
| | - Long D Nghiem
- Strategic Water Infrastructure Laboratory, School of Civil, Mining and Environmental Engineering, University of Wollongong (UOW), NSW 2522, Australia
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12
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Forootanfar H, Faramarzi MA. Insights into laccase producing organisms, fermentation states, purification strategies, and biotechnological applications. Biotechnol Prog 2015; 31:1443-63. [DOI: 10.1002/btpr.2173] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 08/30/2015] [Indexed: 12/07/2022]
Affiliation(s)
- Hamid Forootanfar
- Dept. of Pharmaceutical Biotechnology, Faculty of Pharmacy; Kerman University of Medical Sciences; Kerman Iran
| | - Mohammad Ali Faramarzi
- Dept. of Pharmaceutical Biotechnology, Faculty of Pharmacy & Biotechnology Research Center; Tehran University of Medical Sciences; Tehran 1417614411 Iran
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13
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Bezerra TMDS, Bassan JC, Santos VTDO, Ferraz A, Monti R. Covalent immobilization of laccase in green coconut fiber and use in clarification of apple juice. Process Biochem 2015. [DOI: 10.1016/j.procbio.2014.12.009] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Rao MA, Scelza R, Acevedo F, Diez MC, Gianfreda L. Enzymes as useful tools for environmental purposes. CHEMOSPHERE 2014; 107:145-162. [PMID: 24411841 DOI: 10.1016/j.chemosphere.2013.12.059] [Citation(s) in RCA: 123] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 12/02/2013] [Accepted: 12/13/2013] [Indexed: 06/03/2023]
Abstract
In the environment enzymes may play important and different roles at least in three cases: as main agents (as isolated, cell-bound or immobilized enzymes) in charge of either the transformation and/or degradation of compounds polluting the environment and the restoration of the polluted environment; as reliable and sensitive tools to detect and measure the amount and concentration of pollutants before, during and after the restoration process; as reliable, easy and sensitive indicators of quality and health status of the environment subjected to the restoration process. To our knowledge papers or reviews integrating findings on these three functions of enzymes are missing in literature. Therefore the main scope of the present paper is to briefly encompass general and specific concepts about roles of enzymes as decontaminating agents, pollutant assaying agents and indicators of environment safety. Examples chosen among those published very recently, supporting and confirming peculiarities, features, and performance of enzymatic agents will be illustrated.
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Affiliation(s)
- M A Rao
- Dipartimento di Agraria, Università di Napoli Federico II, Portici, Napoli, Italy.
| | - R Scelza
- Dipartimento di Agraria, Università di Napoli Federico II, Portici, Napoli, Italy
| | - F Acevedo
- Centre of Food Biotechnology and Bioseparations, BIOREN, Universidad de La Frontera, Temuco, Chile
| | - M C Diez
- Environmental Biotechnology Center, BIOREN, Universidad de La Frontera, Temuco, Chile
| | - L Gianfreda
- Dipartimento di Agraria, Università di Napoli Federico II, Portici, Napoli, Italy
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15
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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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16
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Liu T, Zhao Y, Wang X, Li X, Yan Y. A novel oriented immobilized lipase on magnetic nanoparticles in reverse micelles system and its application in the enrichment of polyunsaturated fatty acids. BIORESOURCE TECHNOLOGY 2013; 132:99-102. [PMID: 23395761 DOI: 10.1016/j.biortech.2012.12.191] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 12/28/2012] [Accepted: 12/31/2012] [Indexed: 06/01/2023]
Abstract
A novel oriented immobilized lipase was derived from Yarrowia lipolytica lipase LIP2 covalently immobilized on functionalized Fe3O4 magnetic nanoparticles (MNPs) in reverse micelles system (RMS). The activity recovery reached 382% compared with 29% in aqueous phase, and further ran up to 1425% under optimum conditions. (3-Aminopropyl) triethoxysilane (APTES) coated Fe3O4 nanoparticles were characterized by Fourier transform infrared (FT-IR) and X-ray diffraction (XRD). A significant alteration in the secondary structure of the lipase in RMS with a 15.5% increase of α-helix content and a 12.5% decrease of β-sheet content was detected by circular dichroism (CD). The immobilized lipase was employed to enrich polyunsaturated fatty acids in fish oil, a 90% increase of DHA content was obtained after 12h, and after 20 cycles of successive usage, it still remained over 80% of relative hydrolysis degree, which shows a good recyclability.
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Affiliation(s)
- Tao Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, PR China
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17
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Molawa L, Jordaan J, Limson J, Brady D. Modification of Alcalase SphereZyme™ by entrapment in LentiKats®to impart improved particle stability. BIOCATAL BIOTRANSFOR 2013. [DOI: 10.3109/10242422.2013.767335] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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18
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Ostadhadi-Dehkordi S, Tabatabaei-Sameni M, Forootanfar H, Kolahdouz S, Ghazi-Khansari M, Faramarzi MA. Degradation of some benzodiazepines by a laccase-mediated system in aqueous solution. BIORESOURCE TECHNOLOGY 2012; 125:344-7. [PMID: 23069616 DOI: 10.1016/j.biortech.2012.09.039] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 08/02/2012] [Accepted: 09/13/2012] [Indexed: 05/16/2023]
Abstract
Purified laccase from the soil ascomycete, Paraconiothyrium variabile was employed in the degradation of 7 benzodiazepine substances in the absence and presence of the enzyme mediators, 1-hydroxybenzotriazole (HBT), 2,2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS), 2,6-dimethoxyphenol (DMP), and vanillic acid (VA). In the absence of a laccase mediator, the original concentrations of 10 μg mL(-1) of nitrazepam, alprazolam, diazepam, and oxazepam decreased by 27.3%, 45.6%, 18.6% and 18.7%, respectively, after 48 h treatment using the purified enzyme, whereas the removal percentages for clobazam, chlordiazepoxide, and lorazepam were only 5.6%, 3.6%, and 4.1%, respectively. Among the laccase mediators, HBT was the most efficient compound, increasing the degradation percentages of nitrazepam, alprazolam, diazepam, and oxazepam to 73%, 88.1%, 61.4%, and 71.2%, respectively. The removal percentages of clobazam, chlordiazepoxide, and lorazepam was increased to 8.2%, 4.7%, and 6.5%, respectively, when the laccase-HBT system was used. The data presented suggest that the laccase-mediated system has potential for the elimination of some benzodiazepines in aqueous solution.
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Affiliation(s)
- Sattar Ostadhadi-Dehkordi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 14174, Iran
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Songulashvili G, Jimenéz-Tobón GA, Jaspers C, Penninckx MJ. Immobilized laccase of Cerrena unicolor for elimination of endocrine disruptor micropollutants. Fungal Biol 2012; 116:883-9. [DOI: 10.1016/j.funbio.2012.05.005] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 05/10/2012] [Accepted: 05/11/2012] [Indexed: 11/28/2022]
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Herter S, Mikolasch A, Michalik D, Hammer E, Schauer F, Bornscheuer U, Schmidt M. C–N coupling of 3-methylcatechol with primary amines using native and recombinant laccases from Trametes versicolor and Pycnoporus cinnabarinus. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.09.123] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Forde J, Tully E, Vakurov A, Gibson TD, Millner P, Ó’Fágáin C. Chemical modification and immobilisation of laccase from Trametes hirsuta and from Myceliophthora thermophila. Enzyme Microb Technol 2010; 46:430-7. [DOI: 10.1016/j.enzmictec.2010.01.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Revised: 01/19/2010] [Accepted: 01/20/2010] [Indexed: 11/17/2022]
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Brady D, Jordaan J. Advances in enzyme immobilisation. Biotechnol Lett 2009; 31:1639-50. [DOI: 10.1007/s10529-009-0076-4] [Citation(s) in RCA: 571] [Impact Index Per Article: 38.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 06/19/2009] [Accepted: 06/22/2009] [Indexed: 10/20/2022]
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