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Ma X. Heavy metals remediation through lactic acid bacteria: Current status and future prospects. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174455. [PMID: 38964392 DOI: 10.1016/j.scitotenv.2024.174455] [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: 05/07/2024] [Revised: 06/14/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
With the development of industrialization and urbanization, heavy metal (HM) pollution has become an urgent problem in many countries. The use of microorganisms to control HM pollution has attracted the attention of many scholars due to its advantages of mild conditions, low process cost, and no secondary pollution. In this context, this review aimed to compile recent advances on the potential of lactic acid bacteria (LAB) as HMs biosorbents. As a food-safe class of probiotic, LAB can not only be used for HM remediation in soil and wastewater, but most importantly, can be used for metal removal in food. The extracellular adsorption and intracellular accumulation are the main mechanisms of HM removal by LAB. Lactic acid (LA) fermentation is also one of the removal mechanisms, especially in the food industry. The pH, temperature, biomass, ion concentration and adsorption time are the essential parameters to be considered during the bioremediation. Although the LAB remediation is feasible in theory and lab-scale experiments, it is limited in practical applications due to its low efficiency. Therefore, the commonly used methods to improve the adsorption efficiency of LAB, including pretreatment and mixed-cultivation, are also summarized in this review. Finally, based on the review of literature, this paper presents the emerging strategies to overcome the low adsorption capacity of LAB. This review proposes the future investigations required for this field, and provides theoretical support for the practical application of LAB bioremediation of HMs.
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Affiliation(s)
- Xiaoyu Ma
- China Institute of Geo-Environment Monitoring, China Geological Survey, Beijing 100081, China.
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2
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Maglione G, Zinno P, Tropea A, Mussagy CU, Dufossé L, Giuffrida D, Mondello A. Microbes' role in environmental pollution and remediation: a bioeconomy focus approach. AIMS Microbiol 2024; 10:723-755. [PMID: 39219757 PMCID: PMC11362270 DOI: 10.3934/microbiol.2024033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 08/07/2024] [Accepted: 08/20/2024] [Indexed: 09/04/2024] Open
Abstract
Bioremediation stands as a promising solution amid the escalating challenges posed by environmental pollution. Over the past 25 years, the influx of synthetic chemicals and hazardous contaminants into ecosystems has required innovative approaches for mitigation and restoration. The resilience of these compounds stems from their non-natural existence, distressing both human and environmental health. Microbes take center stage in this scenario, demonstrating their ability of biodegradation to catalyze environmental remediation. Currently, the scientific community supports a straight connection between biorefinery and bioremediation concepts to encourage circular bio/economy practices. This review aimed to give a pre-overview of the state of the art regarding the main microorganisms employed in bioremediation processes and the different bioremediation approaches applied. Moreover, focus has been given to the implementation of bioremediation as a novel approach to agro-industrial waste management, highlighting how it is possible to reduce environmental pollution while still obtaining value-added products with commercial value, meeting the goals of a circular bioeconomy. The main drawbacks and challenges regarding the feasibility of bioremediation were also reported.
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Affiliation(s)
- Giuseppe Maglione
- Institute for the Animal Production System in the Mediterranean Environment (ISPAAM), National Research Council, Piazzale Enrico Fermi 1, 80055 Portici, Italy
| | - Paola Zinno
- Institute for the Animal Production System in the Mediterranean Environment (ISPAAM), National Research Council, Piazzale Enrico Fermi 1, 80055 Portici, Italy
| | - Alessia Tropea
- Messina Institute of Technology c/o Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, former Veterinary School, University of Messina, Viale G. Palatucci snc 98168–Messina, Italy
| | - Cassamo U. Mussagy
- Escuela de Agronomía, Facultad de Ciencias Agronómicas y de los Alimentos, Pontificia Universidad Católica de Valparaíso, Quillota 2260000, Chile
| | - Laurent Dufossé
- CHEMBIOPRO Laboratoire de Chimie et Biotechnologie des Produits Naturels, ESIROI Agroalimentaire, Université de La Réunion, 15 Avenue René Cassin, F-97400 Saint-Denis, Ile de La Réunion, France
| | - Daniele Giuffrida
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, Via Consolare Valeria, 98125 Messina, Italy
| | - Alice Mondello
- Department of Economics, University of Messina, Via dei Verdi, 75, 98122 Messina, Italy
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Diep P, Leo Shen H, Wiesner JA, Mykytczuk N, Papangelakis V, Yakunin AF, Mahadevan R. Engineered nickel bioaccumulation in Escherichia coli by NikABCDE transporter and metallothionein overexpression. Eng Life Sci 2023; 23:2200133. [PMID: 37408871 PMCID: PMC10317975 DOI: 10.1002/elsc.202200133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 01/24/2023] [Indexed: 07/07/2023] Open
Abstract
Mine wastewater often contains dissolved metals at concentrations too low to be economically extracted by existing technologies, yet too high for environmental discharge. The most common treatment is chemical precipitation of the dissolved metals using limestone and subsequent disposal of the sludge in tailing impoundments. While it is a cost-effective solution to meet regulatory standards, it represents a lost opportunity. In this study, we engineered Escherichia coli to overexpress its native NikABCDE transporter and a heterologous metallothionein to capture nickel at concentrations in local effluent streams. We found the engineered strain had a 7-fold improvement in the bioaccumulation performance for nickel compared to controls, but also observed a drastic decrease in cell viability due to metabolic burden or inducer (IPTG) toxicity. Growth kinetic analysis revealed the IPTG concentrations used based on past studies lead to growth inhibition, thus delineating future avenues for optimization of the engineered strain and its growth conditions to perform in more complex environments.
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Affiliation(s)
- Patrick Diep
- BioZone – Centre for Applied Bioscience and Bioengineering, Department of Chemical Engineering and Applied ChemistryUniversity of TorontoTorontoCanada
| | - Heping Leo Shen
- BioZone – Centre for Applied Bioscience and Bioengineering, Department of Chemical Engineering and Applied ChemistryUniversity of TorontoTorontoCanada
| | | | | | - Vladimiros Papangelakis
- BioZone – Centre for Applied Bioscience and Bioengineering, Department of Chemical Engineering and Applied ChemistryUniversity of TorontoTorontoCanada
| | - Alexander F. Yakunin
- BioZone – Centre for Applied Bioscience and Bioengineering, Department of Chemical Engineering and Applied ChemistryUniversity of TorontoTorontoCanada
- Centre for Environmental BiotechnologySchool of Natural SciencesUniversity of BangorWalesUK
| | - Radhakrishnan Mahadevan
- BioZone – Centre for Applied Bioscience and Bioengineering, Department of Chemical Engineering and Applied ChemistryUniversity of TorontoTorontoCanada
- Institute of Biomedical EngineeringUniversity of TorontoTorontoCanada
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Rafeeq H, Afsheen N, Rafique S, Arshad A, Intisar M, Hussain A, Bilal M, Iqbal HMN. Genetically engineered microorganisms for environmental remediation. CHEMOSPHERE 2023; 310:136751. [PMID: 36209847 DOI: 10.1016/j.chemosphere.2022.136751] [Citation(s) in RCA: 29] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 09/12/2022] [Accepted: 10/02/2022] [Indexed: 06/16/2023]
Abstract
In the recent era, the increasing persistence of hazardous contaminants is badly affecting the globe in many ways. Due to high environmental contamination, almost every second species on earth facing the worst issue in their survival. Advances in newer remediation approaches may help enhance bioremediation's quality, while conventional procedures have failed to remove hazardous compounds from the environment. Chemical and physical waste cleanup approaches have been used in current circumstances; however, these methods are costly and harmful to the environment. Thus, there has been a rise in the use of bioremediation due to an increase in environmental contamination, which led to the development of genetically engineered microbes (GEMs). It is safer and more cost-effective to use engineered microorganisms rather than alternative methods. GEMs are created by introducing a stronger protein into bacteria through biotechnology or genetic engineering to enhance the desired trait. Biodegradation of oil spills, halobenzoates naphthalenes, toluenes, trichloroethylene, octanes, xylenes etc. has been accomplished using GEMs such bacteria, fungus, and algae. Biotechnologically induced microorganisms are more powerful than naturally occurring ones and may degrade contaminants faster because they can quickly adapt to new pollutants they encounter or co-metabolize. Genetic engineering is a worthy process that will benefit the environment and ultimately the health of our people.
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Affiliation(s)
- Hamza Rafeeq
- Department of Biochemistry, Riphah International University, Faisalabad Campus, Faisalabad, 38000, Pakistan
| | - Nadia Afsheen
- Department of Biochemistry, Riphah International University, Faisalabad Campus, Faisalabad, 38000, Pakistan
| | - Sadia Rafique
- Departement of Pharmacy, Riphah International University, Faisalabad Campus, Faisalabad, 38000, Pakistan
| | - Arooj Arshad
- Department of Biochemistry, University of Agriculture Faisalabad, 38000, Pakistan
| | - Maham Intisar
- Department of Biochemistry, University of Agriculture Faisalabad, 38000, Pakistan
| | - Asim Hussain
- Department of Biochemistry, University of Agriculture Faisalabad, 38000, Pakistan
| | - Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60695 Poznan, Poland.
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico.
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Repurposing anaerobic digestate for economical biomanufacturing and water recovery. Appl Microbiol Biotechnol 2022; 106:1419-1434. [PMID: 35122155 DOI: 10.1007/s00253-022-11804-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 01/18/2022] [Accepted: 01/23/2022] [Indexed: 11/02/2022]
Abstract
Due to mounting impacts of climate change, particularly increased incidence of drought, hence water scarcity, it has become imperative to develop new technologies for recovering water from nutrient-rich, water-replete effluents other than sewage. Notably, anaerobic digestate could be harnessed for the purpose of water recovery by repurposing digestate-borne minerals as nutrients in fermentative processes. The high concentrations of ammonium, phosphate, sulfate, and metals in anaerobic digestate are veritable microbial nutrients that could be harnessed for bio-production of bulk and specialty chemicals. Tethering nutrient sequestration from anaerobic digestate to bio-product accumulation offers promise for concomitant water recovery, bio-chemical production, and possible phosphate recovery. In this review, we explore the potential of anaerobic digestate as a nutrient source and as a buffering agent in fermentative production of glutamine, glutamate, fumarate, lactate, and succinate. Additionally, we discuss the potential of synthetic biology as a tool for enhancing nutrient removal from anaerobic digestate and for expanding the range of products derivable from digestate-based fermentations. Strategies that harness the nutrients in anaerobic digestate with bio-product accumulation and water recovery could have far-reaching implications on sustainable management of nutrient-rich manure, tannery, and fish processing effluents that also contain high amounts of water. KEY POINTS: • Anaerobic digestate may serve as a source of nutrients in fermentation. • Use of digestate in fermentation would lead to the recovery of valuable water.
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V K, I A, HW D, K K. Recombinant expression and purification of a functional bacterial metallo-chaperone PbrD-fusion construct as a potential biosorbent for Pb(II). Protein Expr Purif 2019; 158:27-35. [DOI: 10.1016/j.pep.2019.02.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Revised: 01/25/2019] [Accepted: 02/11/2019] [Indexed: 01/30/2023]
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7
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Diep P, Mahadevan R, Yakunin AF. Heavy Metal Removal by Bioaccumulation Using Genetically Engineered Microorganisms. Front Bioeng Biotechnol 2018; 6:157. [PMID: 30420950 PMCID: PMC6215804 DOI: 10.3389/fbioe.2018.00157] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Accepted: 10/09/2018] [Indexed: 11/25/2022] Open
Abstract
Wastewater effluents from mines and metal refineries are often contaminated with heavy metal ions, so they pose hazards to human and environmental health. Conventional technologies to remove heavy metal ions are well-established, but the most popular methods have drawbacks: chemical precipitation generates sludge waste, and activated carbon and ion exchange resins are made from unsustainable non-renewable resources. Using microbial biomass as the platform for heavy metal ion removal is an alternative method. Specifically, bioaccumulation is a natural biological phenomenon where microorganisms use proteins to uptake and sequester metal ions in the intracellular space to utilize in cellular processes (e.g., enzyme catalysis, signaling, stabilizing charges on biomolecules). Recombinant expression of these import-storage systems in genetically engineered microorganisms allows for enhanced uptake and sequestration of heavy metal ions. This has been studied for over two decades for bioremediative applications, but successful translation to industrial-scale processes is virtually non-existent. Meanwhile, demands for metal resources are increasing while discovery rates to supply primary grade ores are not. This review re-thinks how bioaccumulation can be used and proposes that it can be developed for bioextractive applications-the removal and recovery of heavy metal ions for downstream purification and refining, rather than disposal. This review consolidates previously tested import-storage systems into a biochemical framework and highlights efforts to overcome obstacles that limit industrial feasibility, thereby identifying gaps in knowledge and potential avenues of research in bioaccumulation.
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Affiliation(s)
| | | | - Alexander F. Yakunin
- BioZone - Centre for Applied Biosciences and Bioengineering, Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON, Canada
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8
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Adverse effect of heavy metals (As, Pb, Hg, and Cr) on health and their bioremediation strategies: a review. Int Microbiol 2018; 21:97-106. [DOI: 10.1007/s10123-018-0012-3] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/23/2018] [Accepted: 05/28/2018] [Indexed: 01/23/2023]
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Marusak KE, Feng Y, Eben CF, Payne ST, Cao Y, You L, Zauscher S. Cadmium sulphide quantum dots with tunable electronic properties by bacterial precipitation. RSC Adv 2016; 6:76158-76166. [PMID: 28435671 DOI: 10.1039/c6ra13835g] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We present a new method to fabricate semiconducting, transition metal nanoparticles (NPs) with tunable bandgap energies using engineered Escherichia coli. These bacteria overexpress the Treponema denticola cysteine desulfhydrase gene to facilitate precipitation of cadmium sulphide (CdS) NPs. Analysis with transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy reveal that the bacterially precipitated NPs are agglomerates of mostly quantum dots, with diameters that can range from 3 to 15 nm, embedded in a carbon-rich matrix. Additionally, conditions for bacterial CdS precipitation can be tuned to produce NPs with bandgap energies that range from quantum-confined to bulk CdS. Furthermore, inducing precipitation at different stages of bacterial growth allows for control over whether the precipitation occurs intra- or extracellularly. This control can be critically important in utilizing bacterial precipitation for the environmentally-friendly fabrication of functional, electronic and catalytic materials. Notably, the measured photoelectrochemical current generated by these NPs is comparable to values reported in the literature and higher than that of synthesized chemical bath deposited CdS NPs. This suggests that bacterially precipitated CdS NPs have potential for applications ranging from photovoltaics to photocatalysis in hydrogen evolution.
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Affiliation(s)
- K E Marusak
- Department of Mechanical Engineering & Materials Science, 144 Hudson Hall, Box 90300 Durham, NC 27708, United States
| | - Y Feng
- Department of Mechanical Engineering & Materials Science, 144 Hudson Hall, Box 90300 Durham, NC 27708, United States
| | - C F Eben
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham NC 27708, United States
| | - S T Payne
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham NC 27708, United States
| | - Y Cao
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham NC 27708, United States
| | - L You
- Department of Biomedical Engineering, Duke University, 101 Science Drive, Durham NC 27708, United States
| | - S Zauscher
- Department of Mechanical Engineering & Materials Science, 144 Hudson Hall, Box 90300 Durham, NC 27708, United States
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Azad MAK, Amin L, Sidik NM. Genetically engineered organisms for bioremediation of pollutants in contaminated sites. ACTA ACUST UNITED AC 2014. [DOI: 10.1007/s11434-013-0058-8] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bioresources for control of environmental pollution. ADVANCES IN BIOCHEMICAL ENGINEERING/BIOTECHNOLOGY 2014; 147:137-83. [PMID: 25312333 DOI: 10.1007/10_2014_276] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Environmental pollution is one of the biggest threats to human beings. For practical reasons it is not possible to stop most of the activities responsible for environmental pollution; rather we need to eliminate the pollutants. In addition to other existing means, biological processes can be utilized to get rid of toxic pollutants. Degradation, removal, or deactivation of pollutants by biological means is known as bioremediation. Nature itself has several weapons to deal with natural wastage and some of them are equally active for eliminating nonnatural pollutants. Several plants, microorganisms, and some lower eukaryotes utilize environmental pollutants as nutrients and some of them are very efficient for decontaminating specific types of pollutants. If exploited properly, these natural resources have enough potential to deal with most elements of environmental pollution. In addition, several artificial microbial consortia and genetically modified organisms with high bioremediation potential were developed by application of advanced scientific tools. On the other hand, natural equilibria of ecosystems are being affected by human intervention. Rapid population growth, urbanization, and industrialization are destroying ecological balances and the natural remediation ability of the Earth is being compromised. Several potential bioremediation tools are also being destroyed by biodiversity destruction of unexplored ecosystems. Pollution management by bioremediation is highly dependent on abundance, exploration, and exploitation of bioresources, and biodiversity is the key to success. Better pollution management needs the combined actions of biodiversity conservation, systematic exploration of natural resources, and their exploitation with sophisticated modern technologies.
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Singh JS, Abhilash P, Singh H, Singh RP, Singh D. Genetically engineered bacteria: An emerging tool for environmental remediation and future research perspectives. Gene 2011; 480:1-9. [DOI: 10.1016/j.gene.2011.03.001] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2010] [Revised: 02/25/2011] [Accepted: 03/03/2011] [Indexed: 10/18/2022]
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Deng X, Yi XE, Liu G. Cadmium removal from aqueous solution by gene-modified Escherichia coli JM109. JOURNAL OF HAZARDOUS MATERIALS 2007; 139:340-4. [PMID: 16890348 DOI: 10.1016/j.jhazmat.2006.06.043] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2005] [Revised: 03/06/2006] [Accepted: 06/13/2006] [Indexed: 05/11/2023]
Abstract
The article extended the study on the bioaccumulation of cadmium by genetically engineered bacterium Escherichia coli (namely M4) simultaneously expressing a cadmium transport system and metallothionein (MT). The growth of M4 showed resistance to the presence of cadmium. Compared with Cd2+ uptake capacity by original host bacterial cells, The Cd2+ accumulation of M4 was enhanced more than one-fold. M4 could effectively bind Cd2+ over a range of pH from 4 to 8. The presence of Ni2+ and Mn2+ did not influence Cd2+ uptake remarkably, but Cu2+, Pb2+ and Zn2+ posed serious adverse effects. EDTA could drastically decrease Cd2+ bioaccumulation by M4, whereas the effect of citrate was relatively slight.
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Affiliation(s)
- X Deng
- College of Life Science, Shenzhen University, Shenzhen 518060, China.
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