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Gao X, Yang Z, Zhang W, Pan B. Carbon redirection via tunable Fenton-like reactions under nanoconfinement toward sustainable water treatment. Nat Commun 2024; 15:2808. [PMID: 38561360 PMCID: PMC10985074 DOI: 10.1038/s41467-024-47269-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 03/26/2024] [Indexed: 04/04/2024] Open
Abstract
The ongoing pattern shift in water treatment from pollution control to energy recovery challenges the energy-intensive chemical oxidation processes that have been developed for over a century. Redirecting the pathways of carbon evolution from molecular fragmentation to polymerization is critical for energy harvesting during chemical oxidation, yet the regulation means remain to be exploited. Herein, by confining the widely-studied oxidation system-Mn3O4 catalytic activation of peroxymonosulfate-inside amorphous carbon nanotubes (ACNTs), we demonstrate that the pathways of contaminant conversion can be readily modulated by spatial nanoconfinement. Reducing the pore size of ACNTs from 120 to 20 nm monotonously improves the pathway selectivity toward oligomers, with the yield one order of magnitude higher under 20-nm nanoconfinement than in bulk. The interactions of Mn3O4 with ACNTs, reactant enrichment, and pH lowering under nanoconfinement are evidenced to collectively account for the enhanced selectivity toward polymerization. This work provides an adaptive paradigm for carbon redirection in a variety of catalytic oxidation processes toward energy harvesting and sustainable water purification.
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Affiliation(s)
- Xiang Gao
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing, China
| | - Zhichao Yang
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing, China
- Research Center for Environmental Nanotechnology (ReCENT), School of Environment, Nanjing University, Nanjing, China
| | - Wen Zhang
- John A. Reif, Jr. Department of Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Bingcai Pan
- State Key Laboratory of Pollution Control and Resources Reuse, Nanjing University, Nanjing, China.
- Research Center for Environmental Nanotechnology (ReCENT), School of Environment, Nanjing University, Nanjing, China.
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2
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Kassir AA, Cheignon C, Charbonnière LJ. Exploitation of Luminescent Lanthanide Nanoparticles for a Sensitivity-Enhanced ELISA Detection Method. Anal Chem 2024; 96:2107-2116. [PMID: 38277386 DOI: 10.1021/acs.analchem.3c04821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Abstract
A new detection method based on the photoluminescence properties of dye-sensitized lanthanide nanoparticles (Ln NPs) was developed for enzyme-linked immunosorbent assays (ELISAs). In this method, the horseradish peroxidase (HRP) enzyme catalyzes the oxidation of phenol derivatives in the presence of hydrogen peroxide, providing dimers that are able to interact with the Ln NP surface and to efficiently photosensitize the Ln ions. Due to the very long emission lifetime of Ln, the time-gated detection of Ln NP luminescence allows the elimination of background noise due to the biological environment. After a comparison of the enzyme-catalyzed oxidation of various phenol derivatives, methyl 4-hydroxyphenyl acetate (MHPA) was selected as the most promising substrate, as the highest Ln emission intensity was observed following its HRP-catalyzed oxidation. After a meticulous optimization of the conditions of both the enzymatic reaction and the Ln sensitization (buffer, pH, concentration of the reactants, NP type, etc.), this new detection method was successfully implemented in a commercial insulin ELISA kit as a proof-of-concept, with an increased sensitivity compared to the commercial detection method.
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Affiliation(s)
- Ali A Kassir
- Equipe de Synthèse pour l'Analyse, IPHC, UMR 7178 CNRS, Université de Strasbourg, ECPM, 67087 Strasbourg, France
| | - Clémence Cheignon
- Equipe de Synthèse pour l'Analyse, IPHC, UMR 7178 CNRS, Université de Strasbourg, ECPM, 67087 Strasbourg, France
| | - Loïc J Charbonnière
- Equipe de Synthèse pour l'Analyse, IPHC, UMR 7178 CNRS, Université de Strasbourg, ECPM, 67087 Strasbourg, France
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3
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Liu ZQ, Yang SQ, Lai HH, Fan CJ, Cui YH. Treatment of contaminants by a cathode/Fe III/peroxydisulfate process: Formation of suspended solid organic-polymers. WATER RESEARCH 2022; 221:118769. [PMID: 35752098 DOI: 10.1016/j.watres.2022.118769] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/14/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
Treatment of highly contaminated wastewaters containing refractory or toxic organic contaminants (e.g. industrial wastewaters) is becoming a global challenge. Most technologies focus on efficient degradation of organic contaminants. Here we improve the cathode/FeIII/peroxydisulfate (PDS) technology by turning down the current density and develop an innovative mechanism for organic contaminants abatement, namely polymerization rather than degradation, which allows simultaneous contaminants removal and resource recovery from wastewater. This polymerization leads to organic-particles (suspended solid organic-polymers) formation in bulk solution, which is demonstrated by eight kinds of representative organic contaminants. Taking phenol as a representative, 83% of PDS is saved compared to degradation process, with 87.2% of DOC removal. The formed suspended solid organic-polymers occupy 59.2% of COD of the original organics in solution, and can be easily separated from aqueous solution by sedimentation or filtration. The separated organic-polymers are a series of polymers coupled by phenolic monomers, as confirmed by FTIR and ESI-MS analyzes. The energy contained in the recovered organic polymers (4.76 × 10-5 kWh for 100 mL of 1 mM phenol solution in this study) can fully compensate the consumed electrical energy (2.8 × 10-5 kWh) in the treatment process. A representative polymerization model for this process is established, in which the SO4•- and HO• generated from PDS activation initiate the polymerization and improve the polymerization degree by the production of oligomer intermediates. A practical coking wastewater treatment is carried out to verify the research results and get positive feedback, with 56.0% of DOC abatement and the suspended solid organic-polymers accounts for 42.5% of the total COD in the raw wastewater. The energy consumption (47 kWh/kg COD, including electricity and PDS cost) is lower than the values in previous reports. This study provides a novel method for industrial wastewater treatment based on polymerization mechanism, which is expected to recover resources while removing pollutants with low consumption.
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Affiliation(s)
- Zheng-Qian Liu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan 430074, PR China
| | - Sui-Qin Yang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan 430074, PR China
| | - Hui-Hui Lai
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan 430074, PR China
| | - Cong-Jian Fan
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan 430074, PR China
| | - Yu-Hong Cui
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan 430074, PR China.
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4
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Bej S, Ghosh M, Das R, Banerjee P. Evaluation of nanomaterials-grafted enzymes for application in contaminants degradation: Need of the hour with proposed IoT synchronized nanosensor fit sustainable clean water technology in en masse. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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5
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Sellami K, Couvert A, Nasrallah N, Maachi R, Abouseoud M, Amrane A. Peroxidase enzymes as green catalysts for bioremediation and biotechnological applications: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150500. [PMID: 34852426 DOI: 10.1016/j.scitotenv.2021.150500] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 05/16/2023]
Abstract
The fast-growing consumer demand drives industrial process intensification, which subsequently creates a significant amount of waste. These products are discharged into the environment and can affect the quality of air, degrade water streams, and alter soil characteristics. Waste materials may contain polluting agents that are especially harmful to human health and the ecosystem, such as the synthetic dyes, phenolic agents, polycyclic aromatic hydrocarbons, volatile organic compounds, polychlorinated biphenyls, pesticides and drug substances. Peroxidases are a class oxidoreductases capable of performing a wide variety of oxidation reactions, ranging from reactions driven by radical mechanisms, to oxygen insertion into CH bonds, and two-electron substrate oxidation. This versatility in the mode of action presents peroxidases as an interesting alternative in cleaning the environment. Herein, an effort has been made to describe mechanisms governing biochemical process of peroxidase enzymes while referring to H2O2/substrate stoichiometry and metabolite products. Plant peroxidases including horseradish peroxidase (HRP), soybean peroxidase (SBP), turnip and bitter gourd peroxidases have revealed notable biocatalytic potentialities in the degradation of toxic products. On the other hand, an introduction on the role played by ligninolytic enzymes such as manganese peroxidase (MnP) and lignin peroxidase (LiP) in the valorization of lignocellulosic materials is addressed. Moreover, sensitivity and selectivity of peroxidase-based biosensors found use in the quantitation of constituents and the development of diagnostic kits. The general merits of peroxidases and some key prospective applications have been outlined as concluding remarks.
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Affiliation(s)
- Kheireddine Sellami
- Laboratoire de Génie de la Réaction, Faculté de Génie Mécanique et Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene, Bab Ezzouar, Alger 16111, Algeria; Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France.
| | - Annabelle Couvert
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Noureddine Nasrallah
- Laboratoire de Génie de la Réaction, Faculté de Génie Mécanique et Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene, Bab Ezzouar, Alger 16111, Algeria
| | - Rachida Maachi
- Laboratoire de Génie de la Réaction, Faculté de Génie Mécanique et Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene, Bab Ezzouar, Alger 16111, Algeria
| | - Mahmoud Abouseoud
- Laboratoire de Génie de la Réaction, Faculté de Génie Mécanique et Génie des Procédés, Université des Sciences et de la Technologie Houari Boumediene, Bab Ezzouar, Alger 16111, Algeria; Laboratoire de Biomatériaux et Phénomènes de Transport, Faculté des Sciences et de la Technologie, Université Yahia Fares de Médéa, Pôle Universitaire, RN1, Médéa 26000, Algeria
| | - Abdeltif Amrane
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
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6
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Priyanka U, Lens PN. Enhanced removal of hydrocarbons BTX by light-driven Aspergillus niger ZnS nanobiohybrids. Enzyme Microb Technol 2022; 157:110020. [DOI: 10.1016/j.enzmictec.2022.110020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 01/31/2022] [Accepted: 02/18/2022] [Indexed: 12/22/2022]
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7
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DNA-targeted formation and catalytic reactions of DNAzymes for label-free ratiometric electrochemiluminescence biosensing. Talanta 2021; 225:121964. [PMID: 33592718 DOI: 10.1016/j.talanta.2020.121964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/26/2020] [Accepted: 11/30/2020] [Indexed: 01/18/2023]
Abstract
A label-free ratiometric electrochemiluminescence (ECL) sensing strategy for the sensitive detection of target DNA (T-DNA) was proposed on the basis of G-quadruplex/hemin-regulated ECL emissions of CdS quantum dots (QDs) and luminol with their common coreactant of H2O2. The ECL biosensor was constructed through stepwise assemblies of CdS QDs and hairpin DNA (H-DNA) on a glassy carbon electrode, and subsequent introduction of T-DNA resulted in the development of G-quadruplex/hemin DNAzymes via the specific recognition of T-DNA and H-DNA in the presence of hemin and K+ ions. The formed DNAzymes not only prompted the catalytic oxidation of hydroquinone followed by deposition of insoluble oxidation oligomers on the electrode surface to attenuate the cathodic ECL emission of CdS QDs but also triggered the catalytic oxidation of luminol to enhance the anodic ECL emission. The label-free ratiometric ECL biosensor for the detection of T-DNA showed a wide response range from 1 to 10,000 fM (10-15 M) with a low detection limit of 0.2 fM and exhibited excellent selectivity against mismatched base sequences. This work provides a reliable and sensitive sensing platform for the detection of targets in analytical community by means of rational design of DNA sequences.
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8
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Facile fabrication of a high-efficient and biocompatibility biocatalyst for bisphenol A removal. Int J Biol Macromol 2020; 150:948-954. [DOI: 10.1016/j.ijbiomac.2019.11.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 10/31/2019] [Accepted: 11/02/2019] [Indexed: 01/12/2023]
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9
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Yan J, Li Z, Liu M, Sun X, Ma L, Wang Z, Zhao Z, Huang X, Yuan L. Activity adaptability of a DhHP-6 peroxidase-mimic in wide pH and temperature ranges and solvent media. Catal Sci Technol 2020. [DOI: 10.1039/c9cy01855g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deuterohemin-β-Ala-His-Thr-Val-Glu-Lys (DhHp-6): peroxidase with high activity.
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Affiliation(s)
- Jiaqing Yan
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
- China
| | - Zhengqiang Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
- China
| | - Min Liu
- Hospital of Stomatology
- Jilin University
- Changchun
- China
| | - Xiaoli Sun
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Li Ma
- Department of Physics
- Georgia Southern University
- Statesboro
- USA
| | - Zhi Wang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education
- College of Life Science
- Jilin University
- Changchun 130012
- China
| | - Zijian Zhao
- Institute of Agro-food Technology
- Jilin Academy of Agricultural Sciences
- Changchun
- China
| | - Xuri Huang
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Long Yuan
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
- College of Physics
- Jilin Normal University
- Changchun 130103
- China
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10
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Wang H, Wan K, Shi X. Recent Advances in Nanozyme Research. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1805368. [PMID: 30589120 DOI: 10.1002/adma.201805368] [Citation(s) in RCA: 411] [Impact Index Per Article: 82.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/15/2018] [Indexed: 05/21/2023]
Abstract
As a new generation of artificial enzymes, nanozymes have the advantages of high catalytic activity, good stability, low cost, and other unique properties of nanomaterials. Due to their wide range of potential applications, they have become an emerging field bridging nanotechnology and biology, attracting researchers in various fields to design and synthesize highly catalytically active nanozymes. However, the thorough understanding of experimental phenomena and the mechanisms beneath practical applications of nanozymes limits their rapid development. Herein, the progress of experimental and computational research of nanozymes on two issues over the past decade is briefly reviewed: (1) experimental development of new nanozymes mimicking different types of enzymes. This covers their structures and applications ranging from biosensing and bioimaging to therapeutics and environmental protection. (2) The catalytic mechanism proposed by experimental and theoretical study. The challenges and future directions of computational research in this field are also discussed.
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Affiliation(s)
- Hui Wang
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Kaiwei Wan
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xinghua Shi
- CAS Key Laboratory for Nanosystem and Hierarchy Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Chinese Academy of Sciences, Beijing, 100190, P. R. China
- School of Nanoscience and Technology, University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
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11
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Zhang H, Zhang H, Luo J, Wan Y. Enzymatic Cascade Catalysis in a Nanofiltration Membrane: Engineering the Microenvironment by Synergism of Separation and Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22419-22428. [PMID: 31190541 DOI: 10.1021/acsami.9b05371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Microenvironment plays a significant role in enzymatic catalysis, which directly influences enzyme activity and stability. It is important to regulate the enzyme microenvironment, especially for the liquid with unfavored properties (e.g., pH and dissolved oxygen). In this work, we propose a methodology that can regulate pH and substrate concentration for enzymatic catalysis by a biocatalytic membrane, which is composed of glucose oxidase (GOx) and horseradish peroxidase (HRP) co-immobilized in a polyamide nanofiltration (NF) membrane (i.e., beneath the separation layer). By virtue of the selective separation function of NF membrane and in situ production of organic acid/electron donor with GOx, a synergism effect of separation and reaction in the liquid/solid interface was manipulated for engineering the microenvironment of HRP to enhance its activity and stability for micropollutant removal in water. The outcome of this work not only provides a new methodology to precisely control enzymatic reaction but also offers a smart membrane system to efficiently and steadily remove the micropollutants in portable water.
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Affiliation(s)
- Huiru Zhang
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Hao Zhang
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
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12
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Zheng G, Liu S, Zha J, Zhang P, Xu X, Chen Y, Jiang S. Protecting Enzymatic Activity via Zwitterionic Nanocapsulation for the Removal of Phenol Compound from Wastewater. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:1858-1863. [PMID: 30080053 DOI: 10.1021/acs.langmuir.8b02001] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Horseradish peroxidase (HRP) holds great potential in wastewater treatment. However, its instability in harsh environments remains a major issue. Various immobilization technologies were developed to retain enzyme stability at the cost of its effectiveness. We demonstrate that zwitterionic encapsulation of HRP retained both protein stability and activity to a large degree. In a water treatment study, encapsulating HRP into a zwitterionic nanogel resulted in a three-fold increase in the catalytic oxidation efficiency of phenol molecules. In addition, zwitterionic nanocapsules exhibited the best performance when compared with nanocapsules made from other hydrophilic polymers. These results indicated that zwitterionic HRP nanocapsules hold great potential in the decontamination of organic pollutants from wastewater.
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Affiliation(s)
- Guiqin Zheng
- Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen , Guangdong 518060 , China
| | - Shan Liu
- Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen , Guangdong 518060 , China
| | - Junqi Zha
- Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen , Guangdong 518060 , China
| | - Peng Zhang
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , United States
| | - Xuewei Xu
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , United States
| | - Yantao Chen
- Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, College of Chemistry and Environmental Engineering , Shenzhen University , Shenzhen , Guangdong 518060 , China
| | - Shaoyi Jiang
- Department of Chemical Engineering , University of Washington , Seattle , Washington 98195 , United States
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13
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Fu Y, Yu Q, Zhang Y, Gao Z, Wu Y, Zhong F. Hemin-catalyzed biomimetic oxidative phenol–indole [3 + 2] reactions in aqueous media. Org Biomol Chem 2019; 17:9994-9998. [DOI: 10.1039/c9ob02151e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A hemin/H2O2 catalytic system for oxidative phenol–indole [3 + 2] coupling in aqueous solution has been developed, enabling benign synthesis of valuable benzofuroindolines under sustainable conditions.
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Affiliation(s)
- Yu Fu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Qile Yu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Yulong Zhang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Zhonghong Gao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Yuzhou Wu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
| | - Fangrui Zhong
- Key Laboratory of Material Chemistry for Energy Conversion and Storage
- Ministry of Education
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica
- School of Chemistry and Chemical Engineering
- Huazhong University of Science and Technology (HUST)
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14
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Dong C, Wagner A, Dinca V, Dinu CZ. Reduced graphene–tungsten trioxide-based hybrid materials with peroxidase-like activity. Catal Sci Technol 2019. [DOI: 10.1039/c8cy01795f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Hybrid material with enzyme-like function.
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Affiliation(s)
- Chenbo Dong
- Department of Chemical and Biomedical Engineering
- West Virginia University
- Morgantown
- USA
| | - Alixandra Wagner
- Department of Chemical and Biomedical Engineering
- West Virginia University
- Morgantown
- USA
| | - Valentina Dinca
- National Institute for Lasers
- Plasma and Radiation Physics
- Magurele
- Romania
| | - Cerasela Zoica Dinu
- Department of Chemical and Biomedical Engineering
- West Virginia University
- Morgantown
- USA
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15
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Chang WT, Liu W, Chiu YH, Chen BH, Chuang SC, Chen YC, Hsu YT, Lu MJ, Chiou SJ, Chou CK, Chiu CC. A 4-Phenoxyphenol Derivative Exerts Inhibitory Effects on Human Hepatocellular Carcinoma Cells through Regulating Autophagy and Apoptosis Accompanied by Downregulating α-Tubulin Expression. Molecules 2017; 22:molecules22050854. [PMID: 28531143 PMCID: PMC6154338 DOI: 10.3390/molecules22050854] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/16/2017] [Accepted: 05/16/2017] [Indexed: 12/30/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a leading cancer worldwide. Advanced HCCs are usually resistant to anticancer drugs, causing unsatisfactory chemotherapy outcomes. In this study, we showed that a 4-phenoxyphenol derivative, 4-[4-(4-hydroxyphenoxy)phenoxy]phenol (4-HPPP), exerts an inhibitory activity against two HCC cell lines, Huh7 and Ha22T. We further investigated the anti-HCC activities of 4-HPPP, including anti-proliferation and induction of apoptosis. Our results showed that higher dosage of 4-HPPP downregulates the expression of α-tubulin and causes nuclear enlargement in both the Huh-7 and Ha22T cell lines. Interestingly, the colony formation results showed a discrepancy in the inhibitory effect of 4-HPPP on HCC and rat liver epithelial Clone 9 cells, suggesting the selective cytotoxicity of 4-HPPP toward HCC cells. Furthermore, the cell proliferation and apoptosis assay results illustrated the differences between the two HCC cell lines. The results of cellular proliferation assays, including trypan blue exclusion and colony formation, revealed that 4-HPPP inhibits the growth of Huh7 cells, but exerts less cytotoxicity in Ha22T cells. Furthermore, the annexin V assay performed for detecting the apoptosis showed similar results. Western blotting results showed 4-HPPP caused the increase of pro-apoptotic factors including cleaved caspase-3, Bid and Bax in HCC cells, especially in Huh-7. Furthermore, an increase of autophagy-associated protein microtubule-associated protein-1 light chain-3B (LC3B)-II and the decrease of Beclin-1 and p62/SQSTM1 were observed following 4-HPPP treatment. Additionally, the level of γH2A histone family, member X (γH2AX), an endogenous DNA damage biomarker, was dramatically increased in Huh7 cells after 4-HPPP treatment, suggesting the involvement of DNA damage pathway in 4-HPPP-induced apoptosis. On the contrary, the western blotting results showed that treatment up-regulates pro-survival proteins, including the phosphorylation of protein kinase B (Akt) and the level of survivin on Ha22T cells, which may confer a resistance toward 4-HPPP. Notably, the blockade of extracellular signal-regulated kinases (ERK), but not Akt, enhanced the cytotoxicity of 4-HPPP against Ha22T cells, indicating the pro-survival role of ERK in 4-HPPP-induced anti-HCC effect. Our present work suggests that selective anti-HCC activity of 4-HPPP acts through induction of DNA damage. Accordingly, the combination of ERK inhibitor may significantly enhance the anti-cancer effect of 4-HPPP for those HCC cells which overexpress ERK in the future.
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Affiliation(s)
- Wen-Tsan Chang
- Division of General and Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
- Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Wangta Liu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Yi-Han Chiu
- Department of Nursing, St. Mary's Junior College of Medicine, Nursing and Management, Yi-Lan 266, Taiwan.
| | - Bing-Hung Chen
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- The Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan.
| | - Shih-Chang Chuang
- Division of General and Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Transplantation Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan.
| | - Yen-Chun Chen
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Yun-Tzh Hsu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Mei-Jei Lu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Shean-Jaw Chiou
- Department of Biochemistry, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Chon-Kit Chou
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
| | - Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Translational Research Center, Cancer Center, Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Research Center for Environment Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan.
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
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16
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Feng Y, Lu K, Gao S, Mao L. The fate and transformation of tetrabromobisphenol A in natural waters, mediated by oxidoreductase enzymes. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2017; 19:596-604. [PMID: 28327772 DOI: 10.1039/c6em00703a] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this study, we examined the fate and transformation of tetrabromobisphenol A (TBBPA), mediated by the representative oxidoreductases (laccase and horseradish peroxidase (HRP)) in natural waters. Both enzymes could readily degrade TBBPA at environmentally relevant concentrations (e.g., 10 nmol L-1) in natural waters. After 2 hour treatment, 0.5-25% and 35-65% of TBBPA were degraded in municipal wastewater and natural surface waters by a laccase or HRP-catalyzed reaction, respectively. Enzyme kinetics evaluations indicated that the kCAT/KM ratio of HRP (1.01 μM-1 s-1) was much higher than that of laccase (0.032 μM-1 s-1) for TBBPA degradation, suggesting that the catalytic performance of HRP towards TBBPA was more efficient than that of laccase. The effects of pH and organic matter on the enzymatic degradation efficiency were explored. Organic matter in the water inhibited the enzymatic degradation efficiency and the degree of inhibition was proportional to the UV254 values of water. Product identification indicated that the product distribution of TBBPA at low concentration (10 nmol L-1) was similar to that of TBBPA at high concentration (10 μmol L-1). The degradation intermediates underwent further enzymatic reaction to yield higher molecular weight secondary products. Toxicity assessment showed that TBBPA toxicity was effectively eliminated by the oxidoreductase-catalyzed reaction.
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Affiliation(s)
- Yiping Feng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, Jiangsu 210023, P. R. China.
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17
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Na SY, Lee Y. Elimination of trace organic contaminants during enhanced wastewater treatment with horseradish peroxidase/hydrogen peroxide (HRP/H2O2) catalytic process. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.03.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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18
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Jain A, Jayaraman S, Singh G, Srinivasan M. Single step peroxidase extraction and oxidation of highly concentrated ethanol and phenol aqueous solutions using supercritical carbon dioxide. J Supercrit Fluids 2016. [DOI: 10.1016/j.supflu.2016.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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19
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Zavada SR, Battsengel T, Scott TF. Radical-Mediated Enzymatic Polymerizations. Int J Mol Sci 2016; 17:E195. [PMID: 26848652 PMCID: PMC4783929 DOI: 10.3390/ijms17020195] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Revised: 01/25/2016] [Accepted: 01/27/2016] [Indexed: 02/04/2023] Open
Abstract
Polymerization reactions are commonly effected by exposing monomer formulations to some initiation stimulus such as elevated temperature, light, or a chemical reactant. Increasingly, these polymerization reactions are mediated by enzymes--catalytic proteins--owing to their reaction efficiency under mild conditions as well as their environmental friendliness. The utilization of enzymes, particularly oxidases and peroxidases, for generating radicals via reduction-oxidation mechanisms is especially common for initiating radical-mediated polymerization reactions, including vinyl chain-growth polymerization, atom transfer radical polymerization, thiol-ene step-growth polymerization, and polymerization via oxidative coupling. While enzyme-mediated polymerization is useful for the production of materials intended for subsequent use, it is especially well-suited for in situ polymerizations, where the polymer is formed in the place where it will be utilized. Such polymerizations are especially useful for biomedical adhesives and for sensing applications.
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Affiliation(s)
- Scott R Zavada
- Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Tsatsral Battsengel
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.
| | - Timothy F Scott
- Department of Chemical Engineering and Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, MI 48109, USA.
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20
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Mazloum S, Al-Ansari MM, Taylor K, Bewtra JK, Biswas N. Additive Effect on Soybean Peroxidase-Catalyzed Removal of Anilines from Water. ENVIRONMENTAL ENGINEERING SCIENCE 2016; 33:133-139. [PMID: 26989345 PMCID: PMC4770916 DOI: 10.1089/ees.2015.0383] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2015] [Accepted: 11/29/2015] [Indexed: 06/05/2023]
Abstract
Soybean peroxidase has been shown to be effective in removal of aromatic compounds from wastewater, while the use of additives effectively reduces enzyme concentration requirement, hence overall treatment cost. Enzymatic treatment, an oxidative polymerization, was successful in removal of over 95% of both aniline and o-anisidine. The originality of this study lies in the findings that the additives, sodium dodecyl sulfate (SDS), sodium dodecylbenzenesulfonate (SDBS), Triton X-100, and sodium dodecanoate (SDOD), reduced enzyme concentration requirement, while polyethylene glycol (PEG, average molar mass of 3350 g/mol) had no effect on the required enzyme concentration. In addition, the presence of SDS also enhanced treatment by improving precipitation and color removal. These results are enabling advancement of soybean peroxidase-catalyzed treatment of anilines found in wastewaters as a new sustainable method.
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Affiliation(s)
- Samar Mazloum
- Department of Civil and Environmental Engineering, University of Windsor, Windsor, Canada
| | | | - Keith Taylor
- Department of Chemistry and Biochemistry, University of Windsor, Windsor, Canada
| | - Jatinder K. Bewtra
- Department of Civil and Environmental Engineering, University of Windsor, Windsor, Canada
| | - Niharendu Biswas
- Department of Civil and Environmental Engineering, University of Windsor, Windsor, Canada
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21
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Torres JA, Batista Chagas PM, Silva MC, dos Santos CD, Duarte Corrêa A. Enzymatic oxidation of phenolic compounds in coffee processing wastewater. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 73:39-50. [PMID: 26744933 DOI: 10.2166/wst.2015.332] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Peroxidases can be used in the treatment of wastewater containing phenolic compounds. The effluent from the wet processing of coffee fruits contains high content of these pollutants and although some studies propose treatments for this wastewater, none targets specifically the removal of these recalcitrant compounds. This study evaluates the potential use of different peroxidase sources in the oxidation of caffeic acid and of total phenolic compounds in coffee processing wastewater (CPW). The identification and quantification of phenolic compounds in CPW was performed and caffeic acid was found to be the major phenolic compound. Some factors, such as reaction time, pH, amount of H2O2 and enzyme were evaluated, in order to determine the optimum conditions for the enzyme performance for maximum oxidation of caffeic acid. The turnip peroxidase (TPE) proved efficient in the removal of caffeic acid, reaching an oxidation of 51.05% in just 15 minutes of reaction. However, in the bioremediation of the CPW, the horseradish peroxidase (HRP) was more efficient with 32.70%±0.16 of oxidation, followed by TPE with 18.25%±0.11. The treatment proposed in this work has potential as a complementary technology, since the efficiency of the existing process is intimately conditioned to the presence of these pollutants.
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Affiliation(s)
- Juliana Arriel Torres
- Departamento de Química, Universidade Federal de Lavras, CEP 37200 000 Lavras, MG, Brazil E-mail:
| | | | - Maria Cristina Silva
- Departamento de Química, Universidade Federal de Minas Gerais, CEP 31270 901 Belo Horizonte, MG, Brazil
| | | | - Angelita Duarte Corrêa
- Departamento de Química, Universidade Federal de Lavras, CEP 37200 000 Lavras, MG, Brazil E-mail:
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22
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Chagas PMB, Torres JA, Silva MC, Corrêa AD. Immobilized soybean hull peroxidase for the oxidation of phenolic compounds in coffee processing wastewater. Int J Biol Macromol 2015; 81:568-75. [PMID: 26321426 DOI: 10.1016/j.ijbiomac.2015.08.061] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 08/15/2015] [Accepted: 08/25/2015] [Indexed: 11/21/2022]
Abstract
Chitosan beads were prepared, using glutaraldehyde as a crosslinking agent for the immobilization of soybean hull peroxidase (SBP). The activity of free and immobilized SBP was studied. The optimum pH was 6.0 for both the free and immobilized enzyme; however, enzyme activity became more dependent on the temperature after immobilization. This study evaluated the potential use of immobilized and free enzyme in the oxidation of caffeic acid, of synthetic phenolic solution (SPS) and of total phenolic compounds in coffee processing wastewater (CPW). Some factors, such as reaction time, amount of H2O2 and caffeic acid were evaluated, in order to determine the optimum conditions for enzyme performance. Both enzymes showed a potential in the removal of caffeic acid, SPS and CPW, and immobilized SBP had the highest oxidation performance. The immobilized enzyme showed a potential of 50% in the oxidation of caffeic acid after 4 consecutive cycles.
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Affiliation(s)
- Pricila Maria Batista Chagas
- Laboratório de Bioquímica, Departamento de Química, Universidade Federal de Lavras, CEP 37200-000, Lavras, MG, Brazil.
| | - Juliana Arriel Torres
- Laboratório de Bioquímica, Departamento de Química, Universidade Federal de Lavras, CEP 37200-000, Lavras, MG, Brazil
| | - Maria Cristina Silva
- Centro Federal de Educação Tecnológica de Minas Gerais, CEP 30421-169, Belo Horizonte, MG, Brazil
| | - Angelita Duarte Corrêa
- Laboratório de Bioquímica, Departamento de Química, Universidade Federal de Lavras, CEP 37200-000, Lavras, MG, Brazil.
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23
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Zhou L, Luo Q, Lu J, Huang Q. Transformation of 17β-Estradiol by Phanerochaete chrysosporium in Different Culture Media. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 95:265-271. [PMID: 25952700 DOI: 10.1007/s00128-015-1557-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Accepted: 04/27/2015] [Indexed: 06/04/2023]
Abstract
The removal of 17β-estradiol (E2) by white-rot fungus Phanerochaete chrysosporium cultured in classic Kirk or potato medium was systematically investigated. Results demonstrated that E2 can be efficiently removed regardless of culture media type. However, the reaction intermediates and transformation pathways varied in different media. Estrone (E1) and estriol (E3) were sequentially generated as intermediates in the potato medium, but these intermediates were absent in Kirk medium. Such results were found to correlate to the peroxidases produced in Kirk medium. These enzymes catalyzed one-electron oxidation of E2 to form radicals that can undergo oxidative coupling. Similar enzymes were not detected in the potato medium, thus E2 underwent in vitro oxidation to form E1 and E3 sequentially. Adding glucose to the potato medium further accelerated such processes. The findings in this study provide insights into estrogen reactions mediated by P. chrysosporium and for potential development of biodegradation methods to reduce estrogen contamination levels.
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Affiliation(s)
- Lina Zhou
- College of Natural Resources and Environment, Northwest A&F University, Yangling, 712100, Shaanxi, China
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24
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Kumbul A, Gokturk E, Turac E, Sahmetlioglu E. Enzymatic oxidative polymerization of para
-imine functionalized phenol catalyzed by horseradish peroxidase. POLYM ADVAN TECHNOL 2015. [DOI: 10.1002/pat.3544] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Altug Kumbul
- Department of Chemistry; Niğde University; 51240 Niğde Turkey
| | - Ersen Gokturk
- Department of Chemistry; Mustafa Kemal University; 31001 Hatay Turkey
| | - Ersen Turac
- Department of Chemistry; Niğde University; 51240 Niğde Turkey
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25
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Dong S, Mao L, Luo S, Zhou L, Feng Y, Gao S. Comparison of lignin peroxidase and horseradish peroxidase for catalyzing the removal of nonylphenol from water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2014; 21:2358-2366. [PMID: 24062065 DOI: 10.1007/s11356-013-2161-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 09/10/2013] [Indexed: 06/02/2023]
Abstract
Concentrations of aqueous-phase nonylphenol (NP), a well-known endocrine-disrupting chemical, are shown to be reduced effectively via reaction with lignin peroxidase (LiP) or horseradish peroxidase (HRP) and hydrogen peroxide. We systematically assessed their reaction efficiencies at varying conditions, and the results have confirmed that the catalytic performance of LiP toward NP was more efficient than that of HRP under experimental conditions. Mass spectrum analysis demonstrated that polymerization through radical-radical coupling mechanism was the pathway leading to NP transformation. Our molecular modeling with the assistance of ab initio suggested the coupling of NP likely proceeded via covalent bonding between two NP radicals at their unsubstituted carbons in phenolic rings. Data from acute immobilization tests with Daphnia confirm that NP toxicity is effectively eliminated by LiP/HRP-catalyzed NP removal. The findings in this study provide useful information for understanding LiP/HRP-mediated NP reactions, and comparison of enzymatic performance can present their advantages for up-scale applications in water/wastewater treatment.
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Affiliation(s)
- Shipeng Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China.
| | - Siqiang Luo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Lei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Yiping Feng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, People's Republic of China.
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26
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Guida V, Niro E, Landi N, Chambery A, Parente A, Cantarella L, Cantarella M, Di Maro A. Immobilised peroxidases from Asparagus acutifolius L. seeds for olive mill waste water treatment. RSC Adv 2014. [DOI: 10.1039/c4ra11310a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AaP-1-4 peroxidase fromA. acutifoliusL. was immobilised on Eupergit® CM; Eup-AaP-1-4 was proved to be able to remove (poly)phenols in olive mill waste water; Eup-AaP-1-4 is an economic source for removal phenols from industrial processes.
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Affiliation(s)
- Vincenzo Guida
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Elisa Niro
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Nicola Landi
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Angela Chambery
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Augusto Parente
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
| | - Laura Cantarella
- Department of Civil and Mechanical Engineering
- University of Cassino and Southern Lazio
- 03043 Cassino, Italy
| | - Maria Cantarella
- Department of Industrial and Information Engineering and Economics
- University of L'Aquila
- 67100 L'Aquila, Italy
| | - Antimo Di Maro
- Department of Environmental
- Biological and Pharmaceutical Sciences and Technologies
- Second University of Naples
- 81100 Caserta, Italy
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27
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Oxidative Coupling and Hydroxylation of Phenol over Transition Metal and Acidic Zeolites: Insights into Catalyst Function. Catal Letters 2013. [DOI: 10.1007/s10562-013-1142-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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28
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Horseradish peroxidase inactivation: heme destruction and influence of polyethylene glycol. Sci Rep 2013; 3:3126. [PMID: 24185130 PMCID: PMC3816284 DOI: 10.1038/srep03126] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2013] [Accepted: 10/15/2013] [Indexed: 11/26/2022] Open
Abstract
Horseradish peroxidase (HRP) mediates efficient conversion of many phenolic contaminants and thus has potential applications for pollution control. Such potentially important applications suffer however from the fact that the enzyme becomes quickly inactivated during phenol oxidation and polymerization. The work here provides the first experimental data of heme consumption and iron releases to support the hypothesis that HRP is inactivated by heme destruction. Product of heme destruction is identified using liquid chromatography with mass spectrometry. The heme macrocycle destruction involving deprivation of the heme iron and oxidation of the 4-vinyl group in heme occurs as a result of the reaction. We also demonstrated that heme consumption and iron releases resulting from HRP destruction are largely reduced in the presence of polyethylene glycol (PEG), providing the first evidence to indicate that heme destruction is effectively suppressed by co-dissolved PEG. These findings advance a better understanding of the mechanisms of HRP inactivation.
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29
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Wang X, Ding Z, Ren Q, Qin W. Polymeric Membrane Neutral Phenol-Sensitive Electrodes for Potentiometric G-Quadruplex/Hemin DNAzyme-Based Biosensing. Anal Chem 2013; 85:1945-50. [DOI: 10.1021/ac3035629] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xuewei Wang
- Key Laboratory of Coastal Zone
Environmental Processes, Yantai Institute of Coastal Zone Research
(YIC), Chinese Academy of Sciences (CAS);
Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes,
YICCAS, Yantai 264003, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Zhaofeng Ding
- College of Chemistry and Chemical
Engineering, Yantai University, Yantai
264003, P. R. China
| | - Qingwei Ren
- College of Chemistry and Chemical
Engineering, Yantai University, Yantai
264003, P. R. China
| | - Wei Qin
- Key Laboratory of Coastal Zone
Environmental Processes, Yantai Institute of Coastal Zone Research
(YIC), Chinese Academy of Sciences (CAS);
Shandong Provincial Key Laboratory of Coastal Zone Environmental Processes,
YICCAS, Yantai 264003, P. R. China
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31
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Kaurinovic B, Popovic M, Vlaisavljevic S, Schwartsova H, Vojinovic-Miloradov M. Antioxidant profile of Trifolium pratense L. Molecules 2012; 17:11156-72. [PMID: 22990457 PMCID: PMC6268542 DOI: 10.3390/molecules170911156] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 09/05/2012] [Accepted: 09/07/2012] [Indexed: 01/12/2023] Open
Abstract
In order to examine the antioxidant properties of five different extracts of Trifolium pratense L. (Leguminosae) leaves, various assays which measure free radical scavenging ability were carried out: 1,1-diphenyl-2-picrylhydrazyl, hydroxyl, superoxide anion and nitric oxide radical scavenger capacity tests and lipid peroxidation assay. In all of the tests, only the H2O and (to some extent) the EtOAc extracts showed a potent antioxidant effect compared with BHT and BHA, well-known synthetic antioxidants. In addition, in vivo experiments were conducted with antioxidant systems (activities of GSHPx, GSHR, Px, CAT, XOD, GSH content and intensity of LPx) in liver homogenate and blood of mice after their treatment with extracts of T. pratense leaves, or in combination with CCl4. Besides, in the extracts examined the total phenolic and flavonoid amounts were also determined, together with presence of the selected flavonoids: quercetin, luteolin, apigenin, naringenin and kaempferol, which were studied using a HPLC-DAD technique. HPLC-DAD analysis showed a noticeable content of natural products according to which the examined Trifolium pratense species could well be regarded as a promising new source of bioactive natural compounds, which can be used both as a food supplement and a remedy.
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Affiliation(s)
- Biljana Kaurinovic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia; (M.P.); (S.V.)
| | - Mira Popovic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia; (M.P.); (S.V.)
| | - Sanja Vlaisavljevic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia; (M.P.); (S.V.)
| | - Heidy Schwartsova
- Middle European High School, Kráľovská 386/11, Skalica 90901, Slovakia;
| | - Mirjana Vojinovic-Miloradov
- Department of Environmental Protection, Faculty of Technical Sciences, Trg Dositeja Obradovica 3, Novi Sad 21000, Serbia;
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Talano MA, Busso DC, Paisio CE, González PS, Purro SA, Medina MI, Agostini E. Phytoremediation of 2,4-dichlorophenol using wild type and transgenic tobacco plants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2012; 19:2202-11. [PMID: 22234851 DOI: 10.1007/s11356-011-0724-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2011] [Accepted: 12/27/2011] [Indexed: 05/31/2023]
Abstract
INTRODUCTION Transgenic plant strategies based on peroxidase expression or overexpression would be useful for phenolic compound removal since these enzymes play an important role in phenolic polymerizing reactions. MATERIAL AND METHODS Thus, double transgenic (DT) plants for basic peroxidases were obtained and characterized in order to compare the tolerance and efficiency for 2,4-dichlorophenol (2,4-DCP) removal with WT and simple transgenic plants expressing TPX1 or TPX2 gene. Several DT plants showed the expression of both transgenes and proteins, as well as increased peroxidase activity. RESULTS DT lines showed higher tolerance to 2,4-DCP at early stage of development since their germination index was higher than that of WT seedlings exposed to 25 mg/L of the pollutant. High 2,4-DCP removal efficiencies were found for WT tobacco plants. TPX1 transgenic plants and DT (line d) reached slightly higher removal efficiencies for 10 mg/L of 2,4-DCP than WT plants, while DT plants (line A) showed the highest removal efficiencies (98%). These plants showed an increase of 21% and 14% in 2,4-DCP removal efficiency for solutions containing 10 and 25 mg/L 2,4-DCP, respectively, compared with WT plants. In addition, an almost complete toxicity reduction of postremoval solutions using WT and DT plants was obtained through AMPHITOX test, which indicates that the 2,4-DCP degradation products would be similar for both plants. CONCLUSION These results are relevant in the field of phytoremediation application and, moreover, they highlight the safety of using DT tobacco plants because nontoxic products were formed after an efficient 2,4-DCP removal.
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Affiliation(s)
- Melina A Talano
- Departamento de Biología Molecular, FCEFQyN, Universidad Nacional de Río Cuarto, Ruta Nacional 36 Km 601, CP 5800, Río Cuarto, Córdoba, Argentina.
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Máximo MF, Gómez M, Murcia MD, Ortega S, Barbosa DS, Vayá G. Screening of three commercial plant peroxidases for the removal of phenolic compounds in membrane bioreactors. ENVIRONMENTAL TECHNOLOGY 2012; 33:1071-9. [PMID: 22720436 DOI: 10.1080/09593330.2011.607850] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
A comparative study of three plant peroxidases, horseradish (HRP), soybean (SBP) and artichoke (AKPC), was carried out to select the most appropriate one for 4-chlorophenol treatment in an ultrafiltration membrane reactor. Soybean peroxidase showed the highest enzymatic activity, followed by HRP and AKPC. The same tendency was observed in a discontinuous tank reactor, where SBP attained more than 90% of4-chlorophenol removal within the pH range tested. The optimum temperature was 30 degrees C, with SBP showing highest thermostability. With the ultrafiltration membrane reactor, SBP attained the highest operational stability, with 4-chlorophenol conversions of around 90% in the permeate stream for up to 200 minutes. Finally, permeate samples were analysed and no significant amount of enzyme was detected, so the observed loss of activity, less pronounced with SBP, was attributed to enzyme adsorption on the polymeric products deposited on the membrane surface. Soybean peroxidase was selected as the most appropriate peroxidase for future research.
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Affiliation(s)
- M F Máximo
- Department of Chemical Engineering, Murcia University, 30071 Murcia, Spain
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Gómez M, Murcia MD, Dams R, Christofi N, Gómez E, Gómez JL. Removal efficiency and toxicity reduction of 4-chlorophenol with physical, chemical and biochemical methods. ENVIRONMENTAL TECHNOLOGY 2012; 33:1055-1064. [PMID: 22720434 DOI: 10.1080/09593330.2011.606847] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Chlorophenols are well-known priority pollutants and many different treatments have been assessed to facilitate their removal from industrial wastewater. However, an absolute and optimum solution still has to be practically implemented in an industrial setting. In this work, a series ofphysical, chemical and biochemical treatments have been systematically tested for the removal of 4-chlorophenol, and their results have been compared in order to determine the most effective treatment based on removal efficiency and residual by-product formation. Chemical treatments based on advanced oxidation processes (AOP) produced the best results on rate and extent of pollutant removal. The non-chemical technologies showed advantages in terms of complete (in the case of adsorption) or easy (enzymatic treatments) removal of toxic treatment by-products. The AOP methods led to the production of different photoproducts depending on the chosen treatment. Toxic products remained in most cases following treatment, though the toxicity level is significantly reduced with combination treatments. Among the treatments, a photochemical method combining UV, produced with a KrCl excilamp, and hydrogen peroxide achieved total removal of chlorophenol and all by-products and is considered the best treatment for chlorophenol removal.
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Affiliation(s)
- M Gómez
- Pollution Research Unit, School of Life, Sport and Social Sciences, Edinburgh Napier University, Merchiston Campus, Edinburgh EH10 5DT UK.
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Cheng W, Harper WF. Chemical kinetics and interactions involved in horseradish peroxidase-mediated oxidative polymerization of phenolic compounds. Enzyme Microb Technol 2012; 50:204-8. [DOI: 10.1016/j.enzmictec.2011.12.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Revised: 12/01/2011] [Accepted: 12/22/2011] [Indexed: 11/30/2022]
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Deyhimi F, Nami F. Peroxidase-catalyzed electrochemical assay of hydrogen peroxide: A ping-pong mechanism. INT J CHEM KINET 2012. [DOI: 10.1002/kin.20719] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Gómez E, Máximo MF, Montiel MC, Gómez M, Murcia MD, Ortega S. Continuous tank reactors in series: an improved alternative in the removal of phenolic compounds with immobilized peroxidase. ENVIRONMENTAL TECHNOLOGY 2012; 33:103-111. [PMID: 22519093 DOI: 10.1080/09593330.2011.551841] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Immobilized derivatives of soybean peroxidase, covalently bound to a glass support, were used in a continuous stirred tank reactor in series, in order to study the removal of two phenolic compounds: phenol and 4-chlorophenol. The use of two reactors in series, rather than one continuous tank, improved the removal efficiencies of phenol and 4-chlorophenol. The distribution of different amounts of enzyme between the two tanks showed that the relative distributions influenced the removal efficiency reached and the degree of the enzyme deactivation. The highest removal percentages were reached at the outlet of the second tank for a distribution of 50% of the enzyme in each tank. However, with a distribution of 75% in the first tank and 25% in the second, the elimination percentage in the second tank was slightly lower than in the previous case, and the effects of deactivation of the enzyme in the first tank were less pronounced. In all the distributions assayed it was observed that the first tank acts as a filter for the second one, which receives a feed with a smaller load of phenolic compounds, thus diminishing enzyme deactivation in the second tank.
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Affiliation(s)
- E Gómez
- Chemical Engineering Department, University of Murcia, Campus de Espinardo, 30071 Murcia, Spain
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Butun S, Sahiner N. A versatile hydrogel template for metal nano particle preparation and their use in catalysis. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.08.021] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Mao L, Colosi LM, Gao S, Huang Q. Understanding ligninase-mediated reactions of endocrine disrupting chemicals in water: reaction rates and quantitative structure-activity relationships. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2011; 45:5966-5972. [PMID: 21702433 DOI: 10.1021/es201460s] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have verified in our previous work that lignin peroxidase (LiP) mediates effective removal of selected natural and synthetic estrogens. The efficiency of these reactions was greatly enhanced in the presence of veratryl alcohol (VA), a chemical that is produced along with LiP by certain white rot fungi, for example, Phanerochaete chrysosporium. In this study, we systematically evaluated the kinetic behaviors of LiP-mediated reactions for six endocrine disrupting compounds (EDCs), that is, steroid estrogens and their structural analogs, in both the presence and absence of VA. Resulting kinetic parameters were then correlated with structural features of LiP/substrate binding complexes, as quantified using molecular simulation, to create quantitative structure-activity relationship (QSAR) equations. These equations suggest that binding distance between a substrate's phenolic proton and δN of HIS47's imidazole ring plays an important role in modulating substrate reactivity toward LiP in both the presence and absence of VA. This information provides insight into an important enzymatic reaction process that occurs in the natural environment affecting EDC transformation, a process that may be used in engineered systems to achieve EDC removal from water.
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Affiliation(s)
- Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
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Ebiloma U, Arobgba S, Aminu O. Some Activities of Peroxidase from Mango (Mangifera indica L. Var. Mapulehu) Kernel. ACTA ACUST UNITED AC 2011. [DOI: 10.3923/ijbc.2011.200.206] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Kaurinovic B, Popovic M, Vlaisavljevic S, Raseta M. Antioxidant activities of Melittis melissophyllum L. (Lamiaceae). Molecules 2011; 16:3152-67. [PMID: 21494204 PMCID: PMC6260604 DOI: 10.3390/molecules16043152] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2011] [Revised: 04/12/2011] [Accepted: 04/14/2011] [Indexed: 11/17/2022] Open
Abstract
Extracts of Melittis melissophyllum leaves in ether, chloroform, ethyl acetate, n-butanol and water were evaporated to dryness and dissolved in 50% ethanol to make 10% (w/v) solutions. The potential protective action of the extracts was assessed by the corresponding in vitro and in vivo tests. In the in vitro experiments extracts were tested as potential scavengers of free radicals (DPPH, O₂·⁻, NO, and OH radicals), as well as inhibitors of liposomal peroxidation (LPx). The results obtained show that all extracts (exept n-BuOH extract) are good scavengers of radicals and reduce LPx intensity in liposomes, which points to their protective (antioxidant) activity. In vivo experiments were concerned with antioxidant systems (activities of GSHPx, GSHR, Px, CAT, XOD, GSH content and intensity of LPx) in liver homogenate and blood-hemolysate of experimental animals after their treatment with extracts of M. melissophyllum leaves, or in combination with CCl₄. On the basis of the results obtained it can be concluded that the examined extracts have protective (antioxidative) effect and this antioxidative behaviour is more pronounced in liver than in blood-hemolysate. The reason is probably the fact that liver contains other enzymatic systems, which can also participate in the antioxidative mechanism. Of all the extracts the H₂O one showed the highest protective activity.
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Affiliation(s)
- Biljana Kaurinovic
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Science, University of Novi Sad, Trg Dositeja Obradovica 3, 21000 Novi Sad, Serbia.
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Guida V, Criscuolo G, Tamburino R, Malorni L, Parente A, Maro AD. Purification and enzymatic properties of a peroxidase from leaves of Phytolacca dioica L. (Ombú tree). BMB Rep 2011; 44:64-9. [DOI: 10.5483/bmbrep.2011.44.1.64] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Al-Ansari MM, Steevensz A, Taylor KE, Bewtra JK, Biswas N. Soybean peroxidase-catalyzed removal of an aromatic thiol, 2-mercaptobenzothiazole, from water. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2010; 82:2285-9. [PMID: 21141391 DOI: 10.2175/106143010x12681059116617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This paper demonstrates, for the first time, the capability of soybean peroxidase (SBP), an enzyme, for catalyzing the removal of an aromatic thiol, 2-mercaptobenzothiazole (MBT), from aqueous solution. The optimum pH for enzymatic conversion of MBT in aqueous buffer was found to be in the range 6.0 to 9.0. The optimum hydrogen peroxide (H2O2): MBT stoichiometry was 0.6. In terms of standard units (U) of catalytic activity, the minimum SBP concentration required for 95% conversion of 1.0 mM MBT in 3 hours was found to be 0.9 U/mL. The presence of polyethylene glycol at 50 mg/L can reduce the enzyme concentration required for the same conversion by 3-fold. It is proposed that these findings should be the basis for viable and cost-effective treatment of MBT in industrial wastewater and/or process water.
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Mao L, Lu J, Gao S, Huang Q. Transformation of 17beta-estradiol mediated by lignin peroxidase: the role of veratryl alcohol. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2010; 59:13-19. [PMID: 20035325 DOI: 10.1007/s00244-009-9448-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2009] [Accepted: 12/07/2009] [Indexed: 05/28/2023]
Abstract
Lignin peroxidases (LiPs) are a group of extracellular enzymes excreted by certain fungi, e.g., Phanerochaete chrysosporium. These fungi also produce veratryl alcohol (VA) as a secondary metabolite to regulate the performance of LiP. 17ss-Estradiol (E2) is a natural female hormone that is strongly endocrine disruptive when released to the natural environment. The widespread occurrence of E2 and related hormonal chemicals in soil and water environments has been identified, representing an emerging contamination of concern. We report in this study that E2 can be effectively transformed and removed through reactions mediated by LiP and such reactions are significantly enhanced in the presence of VA. We systematically investigated LiP activity and enzymatic reaction kinetics in systems having VA absent or present. The results suggest that VA enhanced the transformation and removal of E2 by the combination of two effects: (i) mitigating LiP inactivation and (ii) modifying the enzyme catalytic kinetics. These findings provide insights into an important pathway that may govern the environmental transformation of E2 and other emerging endocrine-disrupting contaminants of similar nature in the environment, and provide a basis for potential development and optimization of enzyme-based processes for remediation and removal of these contaminants.
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Affiliation(s)
- Liang Mao
- Nanjing University, People's Republic of China
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45
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Mao L, Huang Q, Luo Q, Lu J, Yang X, Gao S. Ligninase-mediated removal of 17beta-estradiol from water in the presence of natural organic matter: efficiency and pathways. CHEMOSPHERE 2010; 80:469-473. [PMID: 20416920 DOI: 10.1016/j.chemosphere.2010.03.054] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2009] [Revised: 03/29/2010] [Accepted: 03/30/2010] [Indexed: 05/29/2023]
Abstract
Lignin peroxidase (LiP) is excreted by certain lignin-degrading fungi, such as white rot fungus Phanerochaete chrysosporium, in natural environments and is thus widely present in the natural environment. We have found in our earlier studies that LiP mediates effective reactions of a few natural and synthetic estrogens to form oligomeric products via radical coupling. We in particular examined the identity and property of the products resulting from 17beta-estradiol (E2) in LiP-mediated oxidative coupling reactions, and the results suggest that such reactions hold great potential in water/wastewater treatment to remove E2 and estrogenicity. Herein, we report a further investigation to postulate possible reaction pathways of E2 with the assistance of ab initio molecular modeling and to more systematically examine the reaction behavior of E2 under sequenced reaction conditions and in systems containing natural organic matter (NOM) at different levels. Our molecular modeling suggested the coupling of E2 likely proceeded via covalent bonding between two E2 radicals at their unsubstituted carbons in phenolic rings. Results obtained from sequenced reagent feed experiments revealed that the coupling products tended to be consumed with increment enzyme treatments, suggesting that most E2 coupling products may still be LiP substrates that can undergo further coupling reactions under catalysis. Higher concentration of NOM present in the reaction system tended to reduce E2 transformation. NOM moieties seemed to couple to each other upon reaction with LiP, which was evidenced by the development of a characteristic absorbance band.
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Affiliation(s)
- Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, PR China
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Mao L, Lu J, Habteselassie M, Luo Q, Gao S, Cabrera M, Huang Q. Ligninase-mediated removal of natural and synthetic estrogens from water: II. Reactions of 17beta-estradiol. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2010; 44:2599-2604. [PMID: 20230031 DOI: 10.1021/es903058k] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We have demonstrated in our earlier work that a few natural and synthetic estrogens can be effectively transformed through reactions mediated by lignin peroxidase (LiP). The behaviors of such reactions are variously influenced by the presence of natural organic matter (NOM) and/or veratryl alcohol (VA). Certain white rot fungi, e.g. Phanerochaete chrysosporium, produce VA as a secondary metabolite along with LiP in nature where NOM is ubiquitously present. Herein, we report a study on the products resulting from LiP-mediated oxidative coupling reactions of a representative estrogen, 17beta-estradiol (E2), and how the presence of NOM and/or VA impacts the formation and distribution of the products. A total of six products were found, and the major products appeared to be oligomers resulting from E2 coupling. Our experiments revealed that these products likely formed colloidal solids in water that can be removed via ultrafiltration or settled during ultracentrifugation. Such a colloidal nature of the products could have important implications in their treatability and environmental transport. In the presence of VA, the products tended to shift toward higher-degree of oligomers. When NOM was included in the reaction system, cross-coupling between E2 and NOM appeared to occur. Data obtained from E-SCREEN test confirmed that the estrogenicity of E2 can be effectively eliminated following sequential reactions mediated by LiP.
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Affiliation(s)
- Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, P. R. China
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Cravotto G, Binello A, Di Carlo S, Orio L, Wu ZL, Ondruschka B. Oxidative degradation of chlorophenol derivatives promoted by microwaves or power ultrasound: a mechanism investigation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2010; 17:674-687. [PMID: 19816729 DOI: 10.1007/s11356-009-0253-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2009] [Accepted: 09/24/2009] [Indexed: 05/28/2023]
Abstract
BACKGROUND, AIM, AND SCOPE Phenols are the most common pollutants in industrial wastewaters (particularly from oil refineries, resin manufacture, and coal processing). In the last two decades, it has become common knowledge that they can be effectively destroyed by nonconventional techniques such as power ultrasound (US) and/or microwave (MW) irradiation. Both techniques may strongly promote advanced oxidation processes (AOPs). The present study aimed to shed light on the effect and mechanism of US- and MW-promoted oxidative degradation of chlorophenols; 2,4-dichlorophenoxyacetic acid (2,4-D), a pesticide widespread in the environment, was chosen as the model compound. MATERIALS AND METHODS 2,4-D degradation by AOPs was carried out either under US (20 and 300 kHz) in aqueous solutions (with and without the addition of Fenton reagent) or solvent-free under MW with sodium percarbonate (SPC). All these reactions were monitored by gas chromatography-mass spectrometry (GC-MS) analysis and compared with the classical Fenton reaction in water under magnetic stirring. The same set of treatments was also applied to 2,4-dichlorophenol (2,4-DCP) and phenol, the first two products that occur a step down in the degradation sequence. Fenton and Fenton-like reagents were employed at the lowest active concentration. RESULTS The effects of US and MW irradiation were investigated and compared with those of conventional treatments. Detailed mechanisms of Fenton-type reactions were suggested for 2,4-D, 2,4-DCP, and phenol, underlining the principal degradation products identified. MW-promoted degradation under solvent-free conditions with solid Fenton-like reagents (viz. SPC) is extremely efficient and mainly follows pyrolytic pathways. Power US strongly accelerates the degradation of 2,4-D in water through a rapid generation of highly reactive radicals; it does not lead to the formation of more toxic dimers. DISCUSSION We show that US and MW enhance the oxidative degradation of 2,4-D and that a considerable saving of oxidants and cutting down of reaction times is thereby achieved. The results support the interpretation of previously published data and improve the understanding of the factors of direct degradation along different pathways. CONCLUSIONS Oxidative pathways for 2,4-D, 2,4-DCP, and phenol were proposed by a careful monitoring of the reactions and detection of intermediates by GC-MS. RECOMMENDATIONS AND PERSPECTIVES The understanding of the factors that affect chlorophenols degradation along different pathways may facilitate the optimization of the treatment. Type of energy source (US or MW), power, and frequency to be applied could be designed in function of the operative scenario (amount of pollutant in soil, water, or oils).
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Affiliation(s)
- Giancarlo Cravotto
- Dipartimento di Scienza e Tecnologia del Farmaco, University of Turin, 10125, Turin, Italy.
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Murcia M, Gomez M, Gomez E, Bodalo A, Gomez J, Hidalgo A. Assessing combination treatment, enzymatic oxidation and ultrafiltration in a membrane bioreactor, for 4-chlorophenol removal: Experimental and modeling. J Memb Sci 2009. [DOI: 10.1016/j.memsci.2009.06.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Gomez M, Matafonova G, Gomez JL, Batoev V, Christofi N. Comparison of alternative treatments for 4-chlorophenol removal from aqueous solutions: use of free and immobilized soybean peroxidase and KrCl excilamp. JOURNAL OF HAZARDOUS MATERIALS 2009; 169:46-51. [PMID: 19361921 DOI: 10.1016/j.jhazmat.2009.03.059] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2009] [Revised: 03/11/2009] [Accepted: 03/12/2009] [Indexed: 05/27/2023]
Abstract
The removal of 4-chlorophenol (4-CP) from industrial wastewater continues to be an important environmental issue and some interesting results have been obtained using oxidoreductive enzymes such as peroxidases and UV, generated by novel excilamps. In this study enzyme (free and immobilized soybean peroxidase) and UV (produced by a KrCl excilamp) were used to treat 4-CP solutions at concentrations ranging from 50 to 500 mg L(-1). It was shown that the excilamp can facilitate higher removal efficiencies in all cases with complete 4-CP elimination taking place between 5 and 90 min. The enzyme removed approximately 80% of the 4-CP concentrations in both the free and immobilized state up to concentrations of 250 mg L(-1). At 500 mg L(-1) the immobilized system shows much higher removal efficiency due to increased enzyme stability in the presence of higher formation of by-products.
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Affiliation(s)
- M Gomez
- Department of Chemical Engineering, Murcia University, 30071 Murcia, Spain
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Lu J, Huang Q. Removal of acetaminophen using enzyme-mediated oxidative coupling processes: II. Cross-coupling with natural organic matter. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2009; 43:7068-7073. [PMID: 19806743 DOI: 10.1021/es9001295] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The influence of natural organic matter (NOM) on the transformation of acetaminophen in laccase-mediated oxidative coupling systems was investigated in this study. It was found that the removal of acetaminophen was enhanced while the self-coupling of acetaminophen was suppressed in the presence of dissolved NOM, likely resulting from cross-coupling between dissolved NOM and acetaminophen. In additionto cross-coupling with acetaminophen, NOM moieties could couple to each other upon reaction with laccase. This was evidenced by the development of a characteristic absorbance band centered at 472 nm. According to the rate of the absorbance change at 472 nm, the NOM coupling reactions in four different NOM solutions were evaluated. Apparently, the tendency of NOM coupling reactions correlates with the tendency of acetaminophen cross coupling with NOM in these solutions. Possible reaction pathways of cross-coupling were explored using guaiacol as a model NOM proxy, and the products were extracted and analyzed with mass spectrometry (MS). The results suggested that acetaminophen and guaiacol molecules were cross-coupled via the formation of C-O-C bonds.
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Affiliation(s)
- Junhe Lu
- Department of Crop and Soil Sciences, University of Georgia, Griffin, Georgia 30223, USA
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