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Chauhan P, Imam A, Kanaujia PK, Suman SK. Nano-bioremediation: an eco-friendly and effective step towards petroleum hydrocarbon removal from environment. ENVIRONMENTAL RESEARCH 2023; 231:116224. [PMID: 37224942 DOI: 10.1016/j.envres.2023.116224] [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: 02/21/2023] [Revised: 05/02/2023] [Accepted: 05/22/2023] [Indexed: 05/26/2023]
Abstract
Global concern about petroleum hydrocarbon pollution has intensified and gained scientific interest due to its noxious nature, high persistence in environmental matrices, and low degradability. One way to address this is by combining remediation techniques that could overcome the constraints of traditional physio-chemical and biological remediation strategies. The upgraded concept of bioremediation to nano-bioremediation in this direction offers an efficient, economical, and eco-friendly approach to mitigate petroleum contaminants. Here, we review the unique attributes of different types of nanoparticles and their synthesis procedures in remediating various petroleum pollutants. This review also highlights the microbial interaction with different metallic nanoparticles and their consequential alteration in microbial as well as enzymatic activity which expedites the remediating process. Besides, the latter part of the review explores the application of petroleum hydrocarbon degradation and the application of nano supports as immobilizing agents for microbes and enzymes. Further, the challenges and the future prospects of nano-bioremediation have also been discussed.
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Affiliation(s)
- Pooja Chauhan
- Analytical Sciences Division, Council of Scientific and Industrial Research - Indian Institute of Petroleum, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Material Resource Efficiency Division, Council of Scientific and Industrial Research - Indian Institute of Petroleum, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Arfin Imam
- Analytical Sciences Division, Council of Scientific and Industrial Research - Indian Institute of Petroleum, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Material Resource Efficiency Division, Council of Scientific and Industrial Research - Indian Institute of Petroleum, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Pankaj Kumar Kanaujia
- Analytical Sciences Division, Council of Scientific and Industrial Research - Indian Institute of Petroleum, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Sunil Kumar Suman
- Material Resource Efficiency Division, Council of Scientific and Industrial Research - Indian Institute of Petroleum, Haridwar Road, Dehradun, 248005, Uttarakhand, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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Jafari-Nodoushan H, Fazeli MR, Faramarzi MA, Samadi N. Hierarchically-structured laccase@Ni 3(PO 4) 2 hybrid nanoflowers for antibiotic degradation: Application in real wastewater effluent and toxicity evaluation. Int J Biol Macromol 2023; 234:123574. [PMID: 36764346 DOI: 10.1016/j.ijbiomac.2023.123574] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 01/26/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
Laccase@Ni3(PO4)2 hybrid nanoflowers (HNFs) were prepared by the anisotropic growth of biomineralized nickel phosphate. The immobilization yield was 77.5 ± 3.6 %, and the immobilized enzyme retained 50 % of its initial activity after 18 reusability cycles. The immobilized and free enzymes lost 80 % of their activity after 18 and 6 h incubation in municipal wastewater effluent (MWWE), respectively. The increase in α-helix content (8 %) following immobilization led to a more rigid enzyme structure, potentially contributing to its improved stability. The removal of ciprofloxacin from MWWE by laccase@Ni3(PO4)2·HNFs/p-coumaric acid oxidation system was optimized using a Box-Behnken design. Under the optimized conditions [initial laccase activity (0.05 U mL-1), the concentration of p-coumaric acid (2.9 mM), and treatment time (4.9 h)], the biocatalyst removed 90 % of ciprofloxacin (10 mg L-1) from MWWE. The toxicity of ciprofloxacin against some G+ and G- bacteria was reduced by 35-70 %, depending on their strain. The EC50 of ciprofloxacin for the alga Raphidocelis subcapitata reduced from 3.08 to 1.07 mg L-1 (p-value <0.05) after the bioremoval. Also, the acute and chronic toxicity of identified biodegradation products was lower than ciprofloxacin at three trophic levels, as predicted by ECOSAR software.
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Affiliation(s)
- Hossein Jafari-Nodoushan
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 1417614411, Iran; Department of Pharmaceutical Biotechnology, Faculty of Pharmacy & Biotechnology Research Center, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 1417614411, Iran
| | - Mohammad Reza Fazeli
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 1417614411, Iran
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy & Biotechnology Research Center, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 1417614411, Iran.
| | - Nasrin Samadi
- Department of Drug and Food Control, Faculty of Pharmacy, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran 1417614411, Iran; Pharmaceutical Quality Assurance Research Center, The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran.
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Guo S, Wang S, Meng J, Gu D, Yang Y. Immobilized enzyme for screening and identification of anti-diabetic components from natural products by ligand fishing. Crit Rev Biotechnol 2023; 43:242-257. [PMID: 35156475 DOI: 10.1080/07388551.2021.2025034] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Diabetes is a chronic metabolic disease caused by insufficient insulin secretion and insulin resistance. Natural product is one of the most important resources for anti-diabetic drug. However, due to the extremely complex composition, this research is facing great challenges. After the advent of ligand fishing technology based on enzyme immobilization, the efficiency of screening anti-diabetic components has been greatly improved. In order to provide critical knowledge for future research in this field, the application progress of immobilized enzyme in screening anti-diabetic components from complex natural extracts in recent years was reviewed comprehensively, including novel preparation technologies and strategies of immobilized enzyme and its outstanding application prospect in many aspects. The basic principles and preparation steps of immobilized enzyme were briefly described, including entrapment, physical adsorption, covalent binding, affinity immobilization, multienzyme system and carrier-free immobilization. New formatted immobilized enzymes with different carriers, hollow fibers, magnetic materials, microreactors, metal organic frameworks, etc., were widely used to screen anti-diabetic compositions from various natural products, such as Ginkgo biloba, Morus alba, lotus leaves, Pueraria lobata, Prunella vulgaris, and Magnolia cortex. Furthermore, the challenges and future prospects in this field were put forward in this review.
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Affiliation(s)
- Shuang Guo
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
| | - Shuai Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
| | - Jing Meng
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
| | - Dongyu Gu
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China.,College of Marine Science and Environment, Dalian Ocean University, Dalian, China
| | - Yi Yang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, Dalian, China
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Laccase multi-point covalent immobilization: characterization, kinetics, and its hydrophobicity applications. Appl Microbiol Biotechnol 2023; 107:719-733. [PMID: 36602562 DOI: 10.1007/s00253-022-12352-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 01/06/2023]
Abstract
Laccase from Myceliophthora thermophila was immobilized using one-point and multi-point covalent attachment on both a native and a modified new commercial epoxy carrier (Immobead 150P). After 10 cycles of operation at pH 3.0 and temperature 70 °C, the multi-point covalently immobilized laccase on the modified Immobead 150P performed best in terms of immobilization characteristics, retaining 95% of its initial activity. Thermodynamic parameters of thermal inactivation emphasized the positive impact of the immobilization procedure. At 50 °C, the immobilized and free enzyme activity levels dropped by 27 and 73%, respectively, after 48 h of incubation. The immobilized enzyme enhanced its stability in alkaline conditions, resuming 95% of its original activity after 3 h at pH 9.0. Immobilization reduced substrate affinity because the free laccase's Km value was lower than that of the immobilized laccase. Finally, the application of immobilized laccase in an innovative wood treatment process was tested by grafting lauryl gallate (LG) in order to provide hydrophobic properties to the wood. The results showed a relative water contact angle of 85.7% for treated wood, whereas the control showed only 26.6%, after 4 min of contact between water and beechwood surface. KEY POINTS: • Multi-point covalent immobilization of a commercial laccase on a commercial support. • Enzymatic parameters generally improved by immobilization process. • New application of immobilized laccase: enzymatic-assisted wood hydrophobization.
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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: 15] [Impact Index Per Article: 15.0] [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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Bîtcan I, Petrovici A, Pellis A, Klébert S, Károly Z, Bereczki L, Péter F, Todea A. Enzymatic route for selective glycerol oxidation using covalently immobilized laccases. Enzyme Microb Technol 2022; 163:110168. [DOI: 10.1016/j.enzmictec.2022.110168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 11/18/2022] [Accepted: 11/29/2022] [Indexed: 12/05/2022]
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Bhardwaj P, Kaur N, Selvaraj M, Ghramh HA, Al-Shehri BM, Singh G, Arya SK, Bhatt K, Ghotekar S, Mani R, Chang SW, Ravindran B, Awasthi MK. Laccase-assisted degradation of emerging recalcitrant compounds - A review. BIORESOURCE TECHNOLOGY 2022; 364:128031. [PMID: 36167178 DOI: 10.1016/j.biortech.2022.128031] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/20/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
The main objective of this review is to provide up to date, brief, irrefutable, organized data on the conducted experiments on a range of emerging recalcitrant compounds such as Diclofenac (DCF), Chlorophenols (CPs), tetracycline (TCs), Triclosan (TCS), Bisphenol A (BPA) and Carbamazepine (CBZ). These compounds were selected from the categories of pharmaceutical contaminants (PCs), endocrine disruptors (EDs) and personal care products (PCPs) on the basis of their toxicity and concentration retained in the environment. In this context, detailed mechanism of laccase mediated degradation has been conversed that laccase assisted degradation occurs by one electron oxidation involving redox potential as underlying element of the process. Further, converging towards biotechnology, laccase immobilization increased removal efficiency, storage and reusability through various experimentally conducted studies. Laccase is being considered noteworthy as mediators facilitate laccase in oxidation of non-phenolic compounds and thereby increasing its substrate range which is being discussed in further in the review. The laccase assisted degradation mechanism of each compound has been elucidated but further studies to undercover proper degradation mechanisms needs to be performed.
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Affiliation(s)
- Priyanka Bhardwaj
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road3# Shaanxi, Yangling 712100, China; Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Naviljyot Kaur
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Hamed A Ghramh
- Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Badria M Al-Shehri
- Department of Chemistry, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Research Center for Advanced Materials Science (RCAMS), King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia; Unit of Bee Research and Honey Production, Faculty of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Gursharan Singh
- Department of Medical Laboratory Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Shailendra Kumar Arya
- Department of Biotechnology, University Institute of Engineering and Technology, Panjab University, Chandigarh, India
| | - Kalpana Bhatt
- Department of Botany and Microbiology, Gurukul Kangri University, Haridwar 249404, Uttarakhand, India
| | - Suresh Ghotekar
- Department of Chemistry, Smt. Devkiba Mohansinhji Chauhan College of Commerce and Science, University of Mumbai, Silvassa 396 230, Dadra and Nagar Haveli (UT), India
| | - Ravi Mani
- Centre for Ocean Research, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, India
| | - Soon Woong Chang
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea
| | - Balasubramani Ravindran
- Department of Environmental Energy and Engineering, Kyonggi University, Youngtong-Gu, Suwon, Gyeonggi-Do 16227, Republic of Korea; Department of Medical Biotechnology and Integrative Physiology, Institute of Biotechnology, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Thandalam, Chennai 602 105, Tamil Nadu, India
| | - Mukesh Kumar Awasthi
- College of Natural Resources and Environment, Northwest A&F University, Taicheng Road3# Shaanxi, Yangling 712100, China.
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An insight on microbial degradation of benzo[a]pyrene: current status and advances in research. World J Microbiol Biotechnol 2022; 38:61. [PMID: 35199223 DOI: 10.1007/s11274-022-03250-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/11/2022] [Indexed: 12/21/2022]
Abstract
Benzo[a]pyrene (BaP) is a high molecular weight polycyclic aromatic hydrocarbon produced as a result of incomplete combustion of organic substances. Over the years, the release of BaP in the atmosphere has increased rapidly, risking human lives. BaP can form bonds with DNA leading to the formation of DNA adducts thereby causing cancer. Therefore addressing the problem of its removal from the environment is quite pertinent though it calls for a very cumbersome and tedious process owing to its recalcitrant nature. To resolve such issues many efforts have been made to develop physical and chemical technologies of BaP degradation which have neither been cost-effective nor eco-friendly. Microbial degradation of BaP, on the other hand, has gained much attention due to added advantage of the high level of microbial diversity enabling great potential to degrade the substance without impairing environmental sustainability. Microorganisms produce enzymes like oxygenases, hydrolases and cytochrome P450 that enable BaP degradation. However, microbial degradation of BaP is restricted due to several factors related to its bio-availability and soil properties. Technologies like bio-augmentation and bio-stimulation have served to enhance the degradation rate of BaP. Besides, advanced technologies such as omics and nano-technology have opened new doors for a better future of microbial degradation of BaP and related compounds.
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Alao MB, Adebayo EA. Fungi as veritable tool in bioremediation of polycyclic aromatic hydrocarbons‐polluted wastewater. J Basic Microbiol 2022; 62:223-244. [DOI: 10.1002/jobm.202100376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 11/10/2022]
Affiliation(s)
- Micheal B. Alao
- Microbiology and Biotechnology Laboratory, Department of Pure and Applied Biology Ladoke Akintola University of Technology Ogbomoso Nigeria
| | - Elijah A. Adebayo
- Microbiology and Biotechnology Laboratory, Department of Pure and Applied Biology Ladoke Akintola University of Technology Ogbomoso Nigeria
- Microbiology Unit, Department of Pure and Applied Biology Ladoke Akintola University of Technology Ogbomoso Nigeria
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Optimization and characterization of immobilized laccase on titanium dioxide nanostructure and its application in removal of Remazol Brilliant Blue R. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102186] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Xu A, Zhang X, Wu S, Xu N, Huang Y, Yan X, Zhou J, Cui Z, Dong W. Pollutant Degrading Enzyme: Catalytic Mechanisms and Their Expanded Applications. Molecules 2021; 26:4751. [PMID: 34443339 PMCID: PMC8401168 DOI: 10.3390/molecules26164751] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/03/2021] [Accepted: 07/30/2021] [Indexed: 11/16/2022] Open
Abstract
The treatment of environmental pollution by microorganisms and their enzymes is an innovative and socially acceptable alternative to traditional remediation approaches. Microbial biodegradation is often characterized with high efficiency as this process is catalyzed via degrading enzymes. Various naturally isolated microorganisms were demonstrated to have considerable ability to mitigate many environmental pollutants without external intervention. However, only a small fraction of these strains are studied in detail to reveal the mechanisms at the enzyme level, which strictly limited the enhancement of the degradation efficiency. Accordingly, this review will comprehensively summarize the function of various degrading enzymes with an emphasis on catalytic mechanisms. We also inspect the expanded applications of these pollutant-degrading enzymes in industrial processes. An in-depth understanding of the catalytic mechanism of enzymes will be beneficial for exploring and exploiting more degrading enzyme resources and thus ameliorate concerns associated with the ineffective biodegradation of recalcitrant and xenobiotic contaminants with the help of gene-editing technology and synthetic biology.
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Affiliation(s)
- Anming Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; (A.X.); (X.Z.); (S.W.); (N.X.); (J.Z.)
| | - Xiaoxiao Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; (A.X.); (X.Z.); (S.W.); (N.X.); (J.Z.)
| | - Shilei Wu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; (A.X.); (X.Z.); (S.W.); (N.X.); (J.Z.)
| | - Ning Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; (A.X.); (X.Z.); (S.W.); (N.X.); (J.Z.)
| | - Yan Huang
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (Y.H.); (X.Y.)
| | - Xin Yan
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (Y.H.); (X.Y.)
| | - Jie Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; (A.X.); (X.Z.); (S.W.); (N.X.); (J.Z.)
| | - Zhongli Cui
- Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China; (Y.H.); (X.Y.)
| | - Weiliang Dong
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; (A.X.); (X.Z.); (S.W.); (N.X.); (J.Z.)
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de Souza Lima J, Boemo APSI, de Araújo PHH, de Oliveira D. Immobilization of endoglucanase on kaolin by adsorption and covalent bonding. Bioprocess Biosyst Eng 2021; 44:1627-1637. [PMID: 33686500 DOI: 10.1007/s00449-021-02545-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 02/26/2021] [Indexed: 11/25/2022]
Abstract
In the current research, endoglucanase, one of the enzymes of the cellulolytic complex, was immobilized on kaolin by two different techniques, adsorption, and covalent bonding. A comparative study was conducted between free, adsorbed, and covalently immobilized endoglucanase. For the covalent bonding, the kaolin particles were functionalized with 3-aminopropyltriethoxysilane (APTES) and activated with glutaraldehyde. Immobilization by adsorption was performed using the kaolin without any treatment. Recovered activities after the endoglucanase immobilization by adsorption and covalent bonding were found to be 60 ± 2.5 and 65 ± 3.5%, respectively. The studies of optima pH and temperature, as well as thermal stability, showed that the catalytic characteristic of the enzyme was maintained after the immobilization by both adsorption and covalent bonding. Even after 8 cycles of use, the endoglucanase immobilized by the two techniques retained about 86% of its initial activity. The results showed that the adsorption was as effective as covalent bonding for the immobilization of endoglucanase on kaolin. However, the adsorption technique seems to have a greater potential for use in future studies, as it is simpler, cheaper, and faster than covalent immobilization. Therefore, in this work it was demonstrated that endoglucanases can be immobilized efficiently on kaolin through a very simple immobilization protocol, offering a promising strategy for performing repeated enzymatic hydrolysis reactions.
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Affiliation(s)
- Janaina de Souza Lima
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Ana Paula Serafini Immich Boemo
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Pedro Henrique Hermes de Araújo
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil
| | - Débora de Oliveira
- Department of Chemical and Food Engineering, Federal University of Santa Catarina (UFSC), Florianópolis, SC, 88040-900, Brazil.
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Girelli AM, Scuto FR. Eggshell membrane as feedstock in enzyme immobilization. J Biotechnol 2020; 325:241-249. [PMID: 33068695 DOI: 10.1016/j.jbiotec.2020.10.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/30/2020] [Accepted: 10/12/2020] [Indexed: 12/11/2022]
Abstract
Eggshell membrane, an eco-compatible, safe and cheap by-product was employed as carrier for the laccase from Trametes versicolor immobilization. In order to evaluate the best protocol to apply for the syringic acid degradation, two different types of laccase loading on eggshell membrane were used by incubation in solution or by enzyme-dropping. Chemicals (covalent) and physicals (adsorption) immobilizations were tested for both procedure using native or periodate-oxidized laccase. It is shown that immobilization of periodate-oxidized laccase on NiCl2-pretreated eggshell membrane was the best method for the first procedure (immobilized activity 1300 U/Kg, a residual activity of 30 % for 6 reuse). For the enzyme-dropping protocol a covalent method with the bifunctional cross linker (glutaraldehyde) was the best method (immobilized activity 3500 U/Kg, a residual activity of 45 % for 6 reuse).
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Affiliation(s)
- A M Girelli
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy.
| | - F R Scuto
- Department of Chemistry, Sapienza University of Rome, P.le A. Moro 5, 00185 Rome, Italy
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Zhang Y, Lin DF, Hao J, Zhao ZH, Zhang YJ. The crucial role of bacterial laccases in the bioremediation of petroleum hydrocarbons. World J Microbiol Biotechnol 2020; 36:116. [PMID: 32661601 DOI: 10.1007/s11274-020-02888-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 07/02/2020] [Indexed: 12/15/2022]
Abstract
Laccases (EC 1.10.3.2) are a class of metallo-oxidases found in a variety of fungi, plants, and bacteria as well as in certain insects. They can oxidize a wide variety of organic compounds and can be widely applied in many fields, especially in the field of biodegradation and detoxification of environmental pollutants. The practical efficacy of laccases depends on their ability to capture the target substance as well as their catalytic activity, which is related to their catalytic center, substrate selectivity, and substrate tolerance. Over the past few decades, many laccases have been identified in plants and fungi. Concurrently, bacterial laccases have received increasing attention because of their high thermostability and high tolerance to organic compounds. The aim of this review is to summarize the role of bacterial laccases in the bioremediation of petroleum hydrocarbons and to outline the correlation between the molecular structure of the mononuclear T1 Cu center of bacterial laccases and their substrate preference.
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Affiliation(s)
- Yan Zhang
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, 130012, People's Republic of China
| | - Dong-Fa Lin
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, 130012, People's Republic of China
| | - Jun Hao
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, 130012, People's Republic of China
| | - Zhi-Hao Zhao
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, 130012, People's Republic of China
| | - Ying-Jiu Zhang
- Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education, Jilin University, Changchun, 130012, People's Republic of China. .,School of Life Science, Jilin University, Changchun, 130012, People's Republic of China.
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Debnath R, Saha T. An insight into the production strategies and applications of the ligninolytic enzyme laccase from bacteria and fungi. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2020. [DOI: 10.1016/j.bcab.2020.101645] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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16
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Iron Oxide/Chitosan Magnetic Nanocomposite Immobilized Manganese Peroxidase for Decolorization of Textile Wastewater. Processes (Basel) 2019. [DOI: 10.3390/pr8010005] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Because of its effectiveness in organic pollutant degradation, manganese peroxidase (MnP) enzyme has attracted significant attention in recent years regarding its use for wastewater treatment. Herein, MnP was extracted from Anthracophyllum discolor fungi and immobilized on the surface of magnetic nanocomposite Fe3O4/chitosan. The prepared nanocomposite offered a high surface area for MnP immobilization. The influence of several environmental factors like temperature, pH, as well as storage duration on the activity of the extracted enzyme has been studied. Fourier transmission infrared spectroscopy (FT-IR), scanning electron microscope (SEM), X-ray diffraction (XRD), and transmission electron microscope (TEM) techniques were used for the characterization of the prepared MnP/Fe3O4/chitosan nanocomposite. The efficiencies of the prepared MnP/Fe3O4/chitosan nanocomposite for the elimination of reactive orange 16 (RO 16) and methylene blue (MB) industrial dyes were determined. According to the results, the immobilization of MnP on Fe3O4/chitosan nanocomposite increases its capacity to decolorize MB and RO 16. This nanocomposite allowed the removal of 96% ± 2% and 98% ± 2% of MB and RO 16, respectively. The reusability of the synthesized nanocomposite was studied for five successive cycles showing the ability to retain its efficiency even after five cycles. Thus, the prepared MnP/Fe3O4/chitosan nanocomposite has potential to be a promising material for textile wastewater bioremediation.
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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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18
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Huang Y, Li J, Yang Y, Yuan H, Wei Q, Liu X, Zhao Y, Ni C. Characterization of enzyme-immobilized catalytic support and its exploitation for the degradation of methoxychlor in simulated polluted soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:28328-28340. [PMID: 31372950 DOI: 10.1007/s11356-019-05937-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 07/11/2019] [Indexed: 06/10/2023]
Abstract
Chiral mesoporous silica (SiO2) with helical structure was synthesized by using anionic surfactants as template. Pre-prepared graphene oxide (GO) was then loaded onto SiO2 to synthesize composite carrier chial-meso-SiO2@GO for the immobilization of laccase. The enzyme activity, thermostability, acid stability, and repeatability of the immobilized enzyme were significantly improved after immobilization. The chial-meso-SiO2@GO-immobilized laccase was then used for the degradation of MXC in aqueous phase. The degradation conditions, including temperature, time, pH, MXC concentration, and the dose of immobilized enzyme for cellulosic hydrolysis, were optimized. The optimum conditions for degradation of methoxychlor were selected as pH 4.5, MXC concentration 30 mg/L, immobilized enzyme dose 0.1 g, the maximum MXC removal of over 85% and the maximum degradation rate of 50.75% were achieved after degradation time of six h at temperature of 45 °C. In addition, the immobilized cellulase was added into the immobilized laccase system to form chial-meso-SiO2@GO-immobilized compound enzyme with the maximum MXC degradation rate of 59.58%, higher than that of 50.75% by immobilized laccase. An assessment was made for the effect of chial-meso-SiO2@GO-immobilized compound enzyme on the degradation of MXC in soil phase. For three contaminated soils with MXC concentration of 25 mg/kg, 50 mg/kg, and 100 mg/kg, the MXC removals were 93.0%, 85.8%, and 65.1%, respectively. According to the GC-MS analyses, it was inferred that chial-meso-SiO2@GO-immobilized compound enzyme had a different degradation route with that of chial-meso-SiO2@GO-immobilized laccase. The hydrolysis by immobilized cellulase might attack at a weak location of the MXC molecule with its free radical OH and ultimately removed three chlorine atoms from MXC molecule, leading to generating small molecular amount of degradation product.
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Affiliation(s)
- Yan Huang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Jie Li
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Yuxiang Yang
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China.
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA.
| | - Hongming Yuan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Qinmei Wei
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Xiangnong Liu
- Analysis Test Center, Yangzhou University, Yangzhou, 225009, China
| | - Yi Zhao
- School of Chemistry and Molecular Engineering, East China University of Science & Technology, Shanghai, 200237, China
| | - Chaoying Ni
- Department of Materials Science and Engineering, University of Delaware, Newark, DE, 19716, USA.
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Shivudu G, Khan S, Chandraraj K, Selvam P. Immobilization of Recombinant Endo‐1,4‐β‐xylanase on Ordered Mesoporous Matrices for Xylooligosaccharides Production. ChemistrySelect 2019. [DOI: 10.1002/slct.201901593] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Godhulayyagari Shivudu
- National Centre for Catalysis Research and Department of BiotechnologyIndian Institute of Technology-Madras Chennai- 600036 India
| | - Sourav Khan
- National Centre for Catalysis Research and Department of ChemistryIndian Institute of Technology-Madras Chennai- 600036 India
| | - Krishnan Chandraraj
- National Centre for Catalysis Research and Department of BiotechnologyIndian Institute of Technology-Madras Chennai- 600036 India
| | - Parasuraman Selvam
- National Centre for Catalysis Research and Department of ChemistryIndian Institute of Technology-Madras Chennai- 600036 India
- School of Chemical Engineering and Analytical ScienceThe University of Manchester, Manchester M13 9PL United Kingdom
- Department of Chemical and Process EngineeringUniversity of Surrey, Guildford, Surrey GU2 7XH United Kingdom
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20
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Coglitore D, Janot JM, Balme S. Protein at liquid solid interfaces: Toward a new paradigm to change the approach to design hybrid protein/solid-state materials. Adv Colloid Interface Sci 2019; 270:278-292. [PMID: 31306853 DOI: 10.1016/j.cis.2019.07.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 07/04/2019] [Accepted: 07/05/2019] [Indexed: 10/26/2022]
Abstract
This review gives an overview of protein adsorption at solid/liquid interface. Compared to the other ones, we have focus on three main questions with the point of view of the protein. The first question is related to the kinetic and especially the using of Langmuir model to describe the protein adsorption. The second question is about the concept of hard and soft protein. In this part, we report the protein structural modification induced by adsorption regarding their intrinsic structure. This allows formulating of a new concept to classify the protein to predict their behavior at solid/liquid interface. The last question is related to the protein corona. We give an overview about the soft/hard corona and attempt to make correlation with the concept of hard/soft protein.
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21
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Wen X, Du C, Wan J, Zeng G, Huang D, Yin L, Deng R, Tan S, Zhang J. Immobilizing laccase on kaolinite and its application in treatment of malachite green effluent with the coexistence of Cd (П). CHEMOSPHERE 2019; 217:843-850. [PMID: 30458419 DOI: 10.1016/j.chemosphere.2018.11.073] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 10/23/2018] [Accepted: 11/11/2018] [Indexed: 05/21/2023]
Abstract
Malachite green effluent with the Coexistence of Cd (П) was efficiently decolorized by kaolinite-laccase (Kaolin-Lac). Laccase from Trametes versicolor was immobilized onto the kaolinite through physical adsorption contact. The optimal conditions were 180 min of immobilization time and 0.8 mg/mL of enzyme solution. Kaolin-Lac could obtain a loading efficiency of 88.22%, a loading capacity of 12.25 mg/g, and the highest activity of 839.01 U/g. Moreover, the process of immobilization increased its pH stability and operational stability. Kaolin-Lac retained above 50% of the original activity and nearly 80% decolorization for MG after 5 cycles. In the presence of 3, 5-Dimethoxy-4-hydroxybenzaldehyde (SA), Kaolin-Lac could degrade over 98% of malachite green. The coexistence of Cd (П) was beneficial to the decolorization of malachite green by Kaolin-Lac. The structural and morphological features of kaolinite, Kaolin-Lac and Kaolin-Lac after degradation were determined by scanning electron microscopy-energy spectrum analysis (SEM-EDS) and Fourier transform infrared spectroscopy (FTIR). Cadmium appeared on the Kaolin-Lac after degradation. After immobilization and degradation, the surface groups on kaolinite were changed. Kaolin-Lac showed its more potential continuous employment than free laccase in practical malachite green dyes effluent mixed with Cd (П).
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Affiliation(s)
- Xiaofeng Wen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Chunyan Du
- School of Hydraulic Engineering, Changsha University of Science &Technology, Changsha 410114, PR China; Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, PR China.
| | - Jia Wan
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Danlian Huang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Lingshi Yin
- School of Hydraulic Engineering, Changsha University of Science &Technology, Changsha 410114, PR China; Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, PR China.
| | - Rui Deng
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China.
| | - Shiyang Tan
- School of Hydraulic Engineering, Changsha University of Science &Technology, Changsha 410114, PR China; Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, PR China.
| | - Jinfan Zhang
- School of Hydraulic Engineering, Changsha University of Science &Technology, Changsha 410114, PR China; Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, PR China.
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22
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Naghdi M, Taheran M, Brar SK, Kermanshahi-pour A, Verma M, Surampalli R. Pinewood nanobiochar: A unique carrier for the immobilization of crude laccase by covalent bonding. Int J Biol Macromol 2018; 115:563-571. [DOI: 10.1016/j.ijbiomac.2018.04.105] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Revised: 03/26/2018] [Accepted: 04/20/2018] [Indexed: 01/26/2023]
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23
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An Improved Method to Encapsulate Laccase from Trametes versicolor with Enhanced Stability and Catalytic Activity. Catalysts 2018. [DOI: 10.3390/catal8070286] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
In this work, laccase from Trametes versicolor pretreated with copper ion solution was entrapped in copper alginate beads. The presence of laccase in copper alginate beads was verified by Fourier transform infrared (FTIR) spectroscopy. The alginate concentration used was optimized based on the specific activity and immobilization yield. After entrapment, laccase presents perfect pH stability and thermal stability with 2,2′-azinobis-(3-ethylbenzthiazoline-6-sulphonate) (ABTS) as the substrate. Moreover, laccase in copper alginate beads exhibits good reusability during continuous batch operation for removing 2,4-dichlorophenol. More importantly, owing to the coupled effect of copper ion activation and copper alginate entrapment, the entrapped laccase shows a 3.0-fold and a 2.4-fold increase in specific activity and 2,4-DCP degradation rate compared with that of free laccase, respectively.
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24
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Graphene oxide/CuFe2O4 nanocomposite as a novel scaffold for the immobilization of laccase and its application as a recyclable nanobiocatalyst for the green synthesis of arylsulfonyl benzenediols. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2018.01.004] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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26
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Laccase-conjugated amino-functionalized nanosilica for efficient degradation of Reactive Violet 1 dye. INTERNATIONAL NANO LETTERS 2017. [DOI: 10.1007/s40089-017-0215-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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27
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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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28
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Dai Y, Yao J, Song Y, Liu X, Wang S, Yuan Y. Enhanced performance of immobilized laccase in electrospun fibrous membranes by carbon nanotubes modification and its application for bisphenol A removal from water. JOURNAL OF HAZARDOUS MATERIALS 2016; 317:485-493. [PMID: 27341377 DOI: 10.1016/j.jhazmat.2016.06.017] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 05/24/2016] [Accepted: 06/07/2016] [Indexed: 06/06/2023]
Abstract
Multi-walled carbon nanotubes (MWCNTs) were used as modified materials to improve the performance of laccase-carrying electrospun fibrous membranes (LCEFMs). The MWCNTs modified LCEFMs (MWCNTs-LCEFMs) were successfully fabricated via emulsion electrospinning, with active laccase and MWCNTs encapsulated inside the fibers. After modified by an optimal amount (1.5wt%, vs. polymer) of MWCNTs, the obtained MWCNTs-LCEFMs showed not only higher activity recovery (85.3%, vs. free laccase) than LCEFMs (71.2%), but also better storage and operational stability, which were mainly attributed to the promoted electron transfer in laccase-catalytic reaction. Furthermore, the specific surface area and tensile strength of MWCNTs-LCEFMs have also been enhanced nearly 2 and 3 times than those of LCEFMs, respectively. The MWCNTs-LCEFMs were applied to remove the widespread bisphenol A from water, where their removal efficiency reached above 90%, with the degradation efficiency accounting for over 80%, and their adsorption efficiency increased about 45% than that of LCEFMs. In addition, the endurances of MWCNTs-LCEFMs to environmental factors such as pH and temperature were also improved.
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Affiliation(s)
- Yunrong Dai
- School of Water Resources and Environment, School of Scientific Research, China University of Geosciences (Beijing), 100083, Beijing, PR China; Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Jun Yao
- School of Water Resources and Environment, School of Scientific Research, China University of Geosciences (Beijing), 100083, Beijing, PR China.
| | - Yonghui Song
- Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Xiaoling Liu
- Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Siyu Wang
- Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
| | - Yu Yuan
- Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, 100012, Beijing, PR China.
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Koklukaya SZ, Sezer S, Aksoy S, Hasirci N. Polyacrylamide-based semi-interpenetrating networks for entrapment of laccase and their use in azo dye decolorization. Biotechnol Appl Biochem 2016. [DOI: 10.1002/bab.1417] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
| | - Serdar Sezer
- TUBITAK Marmara Research Center; Institute of Chemical Technology; Kocaeli Turkey
| | - Serpil Aksoy
- Department of Chemistry; Faculty of Sciences, Gazi University; Teknikokullar Ankara Turkey
| | - Nesrin Hasirci
- Department of Chemistry; Faculty of Arts and Sciences, Middle East Technical University; Ankara Turkey
- BIOMATEN Center of Excellence in Biomaterials and Tissue Engineering; Middle East Technical University; Ankara Turkey
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30
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Deng J, Wen X, Li J. Fabrication highly dispersed Fe3O4 nanoparticles on carbon nanotubes and its application as a mimetic enzyme to degrade Orange II. ENVIRONMENTAL TECHNOLOGY 2016; 37:2214-2221. [PMID: 26828855 DOI: 10.1080/09593330.2016.1146339] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 01/20/2016] [Indexed: 06/05/2023]
Abstract
Fe3O4 nanoparticles were grown in situ on carbon nanotubes (CNTs) by a solvothermal method. The Fe3O4/CNTs composites were characterised by the Brunauer-Emmett-Teller method and transmission electron microscopy. The results indicated that the Fe3O4 nanoparticles were uniformly deposited on CNTs, and the average diameter was approximately 7.0 nm. The Fe3O4/CNTs were applied as an enzyme mimetic to decompose Orange II, and the decomposing conditions were optimised. At 500 mg L(-1) of Fe3O4/CNTs in the presence of 15.0 mmol L(-1) of H2O2, at 30°C, it degraded 94.0% of Orange II (0.25 mmol L(-1), pH = 3.5), showing higher catalytic activity than pure Fe3O4 nanoparticles. The high activity was attributed to the uniform Fe3O4 nanoparticles growing on the side walls of the CNTs and the synergetic effect between Fe3O4 and CNTs. The Fe3O4/CNTs maintained their activity at temperatures as high as 65°C. The Fe3O4/CNTs presented high reusability and stability even after eight uses. These data proved that the Fe3O4/CNTs-catalysed degradation is a promising technique for wastewater treatment. Fe3O4 nanoparticles were grown in situ on carbon nanotubes (CNTs) by a solvothermal method. The Fe3O4/CNTs was applied as a mimetic enzyme to decompose Orange II. The Fe3O4/CNTs were collected after the reaction by applying an external magnetic field and can use repeatedly.
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Affiliation(s)
- Jingheng Deng
- a State Joint Key Laboratory of Environment Simulation and Pollution Control, Department of Environmental Engineering, School of Environment , Tsinghua University , Beijing , People's Republic of China
- b Changsha Research Institute of Mining and Metallurgy , Changsha , People's Republic of China
| | - Xianghua Wen
- a State Joint Key Laboratory of Environment Simulation and Pollution Control, Department of Environmental Engineering, School of Environment , Tsinghua University , Beijing , People's Republic of China
| | - Jiaxi Li
- a State Joint Key Laboratory of Environment Simulation and Pollution Control, Department of Environmental Engineering, School of Environment , Tsinghua University , Beijing , People's Republic of China
- c Development and Reform Commission of Hunan Province , Changsha , People's Republic of China
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31
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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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32
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Rouhani S, Rostami A, Salimi A. Preparation and characterization of laccases immobilized on magnetic nanoparticles and their application as a recyclable nanobiocatalyst for the aerobic oxidation of alcohols in the presence of TEMPO. RSC Adv 2016. [DOI: 10.1039/c6ra00103c] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
MNPs-Laccase as a novel magnetically recyclable nanobiocatalyst has been used for the selective aerobic oxidation of alcohols.
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Affiliation(s)
- Shamila Rouhani
- Department of Chemistry
- Faculty of Science
- University of Kurdistan
- Sanandaj
- Iran
| | - Amin Rostami
- Department of Chemistry
- Faculty of Science
- University of Kurdistan
- Sanandaj
- Iran
| | - Abdollah Salimi
- Department of Chemistry
- Faculty of Science
- University of Kurdistan
- Sanandaj
- Iran
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33
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Ramírez-Montoya LA, Hernández-Montoya V, Montes-Morán MA, Cervantes FJ. Correlation between mesopore volume of carbon supports and the immobilization of laccase from Trametes versicolor for the decolorization of Acid Orange 7. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2015; 162:206-214. [PMID: 26241936 DOI: 10.1016/j.jenvman.2015.07.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 07/15/2015] [Accepted: 07/16/2015] [Indexed: 06/04/2023]
Abstract
Immobilization of laccase from Trametes versicolor was carried out using carbon supports prepared from different lignocellulosic wastes. Enzymes were immobilized by physical adsorption. Taguchi methodology was selected for the design of experiments regarding the preparation of the carbon materials, which included the use of activating agents for the promotion of mesoporosity. A good correlation between the mesopore volumes of the carbon supports and the corresponding laccase loadings attained was observed. Specifically, the chemical activation of pecan nut shell with FeCl3 led to a highly mesoporous material that also behaved as the most efficient support for the immobilization of laccase. This particular laccase/carbon support system was used as biocatalyst for the decolorization of aqueous solutions containing Acid Orange 7. Mass spectrometry coupled to a liquid chromatograph allowed us to identify the products of the dye degradation.
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Affiliation(s)
- Luis A Ramírez-Montoya
- Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos No. 1801 Ote., C.P. 20256, Aguascalientes, Ags., Mexico
| | - Virginia Hernández-Montoya
- Instituto Tecnológico de Aguascalientes, Av. Adolfo López Mateos No. 1801 Ote., C.P. 20256, Aguascalientes, Ags., Mexico.
| | | | - Francisco J Cervantes
- División de Ciencias Ambientales, Instituto Potosino de Investigación Científica y Tecnológica (IPICyT), Camino a la Presa San José 2055, Col. Lomas 4ª, Sección, San Luis Potosí, SLP, 78216 Mexico
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34
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Donati E, Polcaro CM, Ciccioli P, Galli E. The comparative study of a laccase-natural clinoptilolite-based catalyst activity and free laccase activity on model compounds. JOURNAL OF HAZARDOUS MATERIALS 2015; 289:83-90. [PMID: 25710818 DOI: 10.1016/j.jhazmat.2015.02.048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 02/12/2015] [Accepted: 02/15/2015] [Indexed: 06/04/2023]
Abstract
For the first time a laccase from Trametes versicolor was immobilized on a natural clinoptilolite with Si/Al=5 to obtain a biocatalyst for environmental applications. Immobilization procedures exploiting adsorption and covalent binding were both tested, and only the last provided enough activity for practical applications. The optimal conditions for the immobilization of the enzyme on the support and the kinetic parameters for the free and covalent bonded laccase were determined. The laccase bonded to the zeolitic support showed a lower activity than the free laccase, but the pH and thermal stability were greater. 20 mg of dry biocatalyst containing 1 U of laccase were able to remove in 50h 73-78% of 2-chlorophenol and 2,4-dichlorophenol in relatively concentrated aqueous solutions (100 μmol L(-1)).
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Affiliation(s)
- Enrica Donati
- Institute of Chemical Methodologies of CNR (IMC), Research Area of Rome 1, Via Salaria Km 29,300, 00015 Monterotondo, Rome, Italy
| | - Chiara M Polcaro
- Institute of Chemical Methodologies of CNR (IMC), Research Area of Rome 1, Via Salaria Km 29,300, 00015 Monterotondo, Rome, Italy.
| | - Piero Ciccioli
- Institute of Chemical Methodologies of CNR (IMC), Research Area of Rome 1, Via Salaria Km 29,300, 00015 Monterotondo, Rome, Italy
| | - Emanuela Galli
- Institute of Agro-Environmental and Forest Biology of CNR (IBAF), Research Area of Rome 1, Via Salaria Km 29,300, 00015 Monterotondo, Rome, Italy
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35
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Doğan T, Bayram E, Uzun L, Şenel S, Denizli A. Trametes versicolorlaccase immobilized poly(glycidyl methacrylate) based cryogels for phenol degradation from aqueous media. J Appl Polym Sci 2015. [DOI: 10.1002/app.41981] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022]
Affiliation(s)
- Tuğba Doğan
- Department of Chemistry; Hacettepe University; 06381-Beytepe Ankara Turkey
| | - Engin Bayram
- Department of Chemistry; Hacettepe University; 06381-Beytepe Ankara Turkey
| | - Lokman Uzun
- Department of Chemistry; Hacettepe University; 06381-Beytepe Ankara Turkey
| | - Serap Şenel
- Department of Chemistry; Hacettepe University; 06381-Beytepe Ankara Turkey
| | - Adil Denizli
- Department of Chemistry; Hacettepe University; 06381-Beytepe Ankara Turkey
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36
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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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37
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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: 35] [Impact Index Per Article: 3.5] [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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38
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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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39
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Wu Y, Jiang Y, Jiao J, Liu M, Hu F, Griffiths BS, Li H. Adsorption of Trametes versicolor laccase to soil iron and aluminum minerals: enzyme activity, kinetics and stability studies. Colloids Surf B Biointerfaces 2013; 114:342-8. [PMID: 24225344 DOI: 10.1016/j.colsurfb.2013.10.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 09/15/2013] [Accepted: 10/10/2013] [Indexed: 11/27/2022]
Abstract
Laccases play an important role in the degradation of soil phenol or phenol-like substance and can be potentially used in soil remediation through immobilization. Iron and aluminum minerals can adsorb extracellular enzymes in soil environment. In the present study, we investigated the adsorptive interaction of laccase, from the white-rot fungus Trametes versicolor, with soil iron and aluminum minerals and characterized the properties of the enzyme after adsorption to minerals. Results showed that both soil iron and aluminum minerals adsorbed great amount of laccase, independent of the mineral specific surface areas. Adsorbed laccases retained 26-64% of the activity of the free enzyme. Compared to the free laccase, all adsorbed laccases showed higher Km values and lower Vmax values, indicating a reduced enzyme-substrate affinity and a lower rate of substrate conversion in reactions catalyzed by the adsorbed laccase. Adsorbed laccases exhibited increased catalytic activities compared to the free laccase at low pH, implying the suitable application of iron and aluminum mineral-adsorbed T. versicolor laccase in soil bioremediation, especially in acid soils. In terms of the thermal profiles, adsorbed laccases showed decreased thermal stability and higher temperature sensitivity relative to the free laccase. Moreover, adsorption improved the resistance of laccase to proteolysis and extended the lifespan of laccase. Our results implied that adsorbed T. versicolor laccase on soil iron and aluminum minerals had promising potential in soil remediation.
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Affiliation(s)
- Yue Wu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Ying Jiang
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Jiaguo Jiao
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Manqiang Liu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | - Feng Hu
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
| | | | - Huixin Li
- Soil Ecology Lab, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, PR China.
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40
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Functional Magnetic Mesoporous Nanoparticles for Efficient Purification of Laccase from Fermentation Broth in Magnetically Stabilized Fluidized Bed. Appl Biochem Biotechnol 2013; 171:2165-75. [DOI: 10.1007/s12010-013-0503-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 08/31/2013] [Indexed: 01/04/2023]
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41
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Metin AÜ. Immobilization of laccase onto polyethyleneimine grafted chitosan films: Effect of system parameters. Macromol Res 2013. [DOI: 10.1007/s13233-013-1146-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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42
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Gassara-Chatti F, Brar SK, Ajila C, Verma M, Tyagi R, Valero J. Encapsulation of ligninolytic enzymes and its application in clarification of juice. Food Chem 2013. [DOI: 10.1016/j.foodchem.2012.09.083] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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43
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Wang F, Guo C, Liu CZ. Immobilization of Trametes versicolor cultures for improving laccase production in bubble column reactor intensified by sonication. ACTA ACUST UNITED AC 2013. [DOI: 10.1007/s10295-012-1214-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Abstract
The mycelia of Trametes versicolor immobilized in alginate beads provided higher laccase production than that in pelleted form. An efficient ultrasonic treatment enhanced laccase production from the immobilized T. versicolor cultures. The optimized treatment process consisted of exposing 36-h-old bead cultures to 7-min ultrasonic treatments twice with a 12-h interval using a fixed ultrasonic power and frequency (120 W, 40 kHz). Using the intensification strategy with sonication, laccase production increased by more than 2.1-fold greater than the untreated control in both flasks and bubble column reactors. The enhancement of laccase production by ultrasonic treatment is related to the improved mass transfer of nutrients and product between the liquid medium and the gel matrix. These results provide a basis for the large-scale and highly-efficient production of laccase using sonobioreactors.
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Affiliation(s)
- Feng Wang
- grid.458442.b 0000000091944824 National Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Sciences 100190 Beijing People’s Republic of China
| | - Chen Guo
- grid.458442.b 0000000091944824 National Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Sciences 100190 Beijing People’s Republic of China
| | - Chun-Zhao Liu
- grid.458442.b 0000000091944824 National Key Laboratory of Biochemical Engineering Institute of Process Engineering, Chinese Academy of Sciences 100190 Beijing People’s Republic of China
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44
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Wang F, Ma AZ, Guo C, Zhuang GQ, Liu CZ. Ultrasound-intensified laccase production from Trametes versicolor. ULTRASONICS SONOCHEMISTRY 2013; 20:118-124. [PMID: 22682477 DOI: 10.1016/j.ultsonch.2012.05.003] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Revised: 05/07/2012] [Accepted: 05/10/2012] [Indexed: 06/01/2023]
Abstract
An efficient intermittent ultrasonic treatment strategy was developed to improve laccase production from Trametes versicolor mycelia cultures. The optimized strategy consisted of exposing 2-day-old mycelia cultures to 5-min ultrasonic treatments for two times with a 12-h interval at the fixed ultrasonic power and frequency (120 W, 40 kHz). After 5 days of culture, this strategy produced the highest extracellular laccase activity of 588.9 U/L among all treatments tested which was 1.8-fold greater than the control without ultrasound treatment. The ultrasonic treatment resulted in a higher pellet porosity that facilitated the mass transfer of nutrients and metabolites from the pellets to the surrounding liquid. Furthermore, the ultrasonic treatment induced the expression of the laccase gene (lcc), which correlated with a sharp increase in both extracellular and intracellular laccase activity. This is the first study to find positive effects of ultrasound on gene expression in fungal cells. These results provide a basis for understanding the stimulation of metabolite production and process intensification by ultrasonic treatment in filamentous fungal culture.
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Affiliation(s)
- Feng Wang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
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45
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Wang F, Huang W, Guo C, Liu CZ. Functionalized magnetic mesoporous silica nanoparticles: fabrication, laccase adsorption performance and direct laccase capture from Trametes versicolor fermentation broth. BIORESOURCE TECHNOLOGY 2012; 126:117-122. [PMID: 23073097 DOI: 10.1016/j.biortech.2012.09.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2012] [Revised: 09/03/2012] [Accepted: 09/04/2012] [Indexed: 06/01/2023]
Abstract
A simple and highly efficient protocol using magnetic mesoporous silica nanoparticles (MMSNPs) with metal affinity ligands was developed to directly capture laccase from Trametes versicolor fermentation broth. The Cu(2+)-chelated magnetic mesoporous silica nanoparticles (MMSNPs-Cu(2+)) with pore sizes ranging from 3.6 to 27.1 nm exhibited size selectivity on laccase capture from the fermentation broth, and the MMSNPs-Cu(2+) with an average pore size of 14.5 nm provided 60.6-fold purification of laccase and 114.6% recovery yield of enzyme activity. Both size selectivity of the MMSNPs and affinity of the chelated metal ion resulted in high laccase capture efficiency from the fermentation broth. The most efficient MMSNPs-Cu(2+) demonstrated no significant loss in laccase capture effectiveness following 10 reuse cycles. This simple and efficient strategy has the potential to be used for the robust and inexpensive preparation of purified laccase at the industrial scale.
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Affiliation(s)
- Feng Wang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
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46
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Demarche P, Junghanns C, Nair RR, Agathos SN. Harnessing the power of enzymes for environmental stewardship. Biotechnol Adv 2012; 30:933-53. [DOI: 10.1016/j.biotechadv.2011.05.013] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Accepted: 05/13/2011] [Indexed: 11/17/2022]
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47
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Immobilization of laccase in alginate-gelatin mixed gel and decolorization of synthetic dyes. Bioinorg Chem Appl 2012; 2012:823830. [PMID: 22899898 PMCID: PMC3415199 DOI: 10.1155/2012/823830] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2012] [Revised: 06/10/2012] [Accepted: 06/15/2012] [Indexed: 11/17/2022] Open
Abstract
Alginate-gelatin mixed gel was applied to immobilized laccase for decolorization of some synthetic dyes including crystal violet. The immobilization procedure was accomplished by adding alginate to a gelatin solution containing the enzyme and the subsequent dropwise addition of the mixture into a stirred CaCl(2) solution. The obtained data showed that both immobilized and free enzymes acted optimally at 50°C for removal of crystal violet, but the entrapped enzyme showed higher thermal stability compared to the free enzyme. The immobilized enzyme represented optimum decolorization at pH 8. Reusability of the entrapped laccase was also studied and the results showed that ca. 85% activity was retained after five successive cycles. The best removal condition was applied for decolorization of seven other synthetic dyes. Results showed that the maximum and minimum dye removal was related to amido black 10B and eosin, respectively.
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48
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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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49
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da Silva AM, Tavares AP, Rocha CM, Cristóvão RO, Teixeira JA, Macedo EA. Immobilization of commercial laccase on spent grain. Process Biochem 2012. [DOI: 10.1016/j.procbio.2012.03.021] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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50
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Wang F, Guo C, Wei T, Zhang T, Liu CZ. Heat shock treatment improves Trametes versicolor laccase production. Appl Biochem Biotechnol 2012; 168:256-65. [PMID: 22733235 DOI: 10.1007/s12010-012-9769-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Accepted: 06/04/2012] [Indexed: 10/28/2022]
Abstract
An efficient heat shock strategy has been developed to improve laccase production in submerged Trametes versicolor cultures. The optimized heat shock strategy consists of subjecting T. versicolor mycelial pellets to three heat shock treatments at 45 °C for 45 min, starting at culture day 0, with a 24-h interval between treatments. Laccase production increased by more than 1.6-fold relative to the control in both flasks and a 5-L bioreactor because the expression of the laccase gene was enhanced by heat shock induction. The present work demonstrates that heat shock induction is a promising method because it both improves fungal laccase production and has a good potential in industrial application.
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Affiliation(s)
- Feng Wang
- National Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
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