A minireview on the bioremediative potential of microbial enzymes as solution to emerging microplastic pollution

Jesus, Rener De; Alkendi, Ruwaya

doi:10.3389/fmicb.2022.1066133

Cited by 13 publications

(3 citation statements)

References 119 publications

(102 reference statements)

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“…In addition, several studies have noted the microalgae's potential for bioremediation. Numerous functional expression investigations on a diatom and a green alga were conducted [80][81][82][83][84][85][86][87][88][89][90][91]. A study by Mohanan et al unveiled that intracellular lipases can be cloned and expressed [92].…”

Section: Innovative Biotechnological Methods To Augment Enzyme Activi...mentioning

confidence: 99%

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Microplastics in Aquatic and Food Ecosystems: Remediation Coupled with Circular Economy Solutions to Create Resource from Waste

Dhiman,

Sharma,

Kumar

et al. 2023

Sustainability

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Microplastics (MPs) less than 5 mm in dimension are progressively becoming persistent in aquatic and food ecosystems and are a global concern. Microbeads (less than 1 mm) used in household cleaners, cosmetics, and apparel washing are the primary source, followed by secondary sources including broken-down plastic litter and waste. They are ingested by a range of aquatic animals, including zooplankton, crustaceans, and fish, and can enter human food chains in a variety of manners. Thus, microplastic pollution poses a detrimental effect on the overall ecological balance, including the aquatic ecosystem, food safety, and human health. Strategies such as microbial enzymes/biofilms and nanotechnology-based solutions to MPs biodegradation, the usage of substitute materials such as biodegradable plastics, and source reduction could be employed to mitigate microplastic pollution. In addition, the implementation of plastic waste into the circular economy, for example by applying the reduce, recycle, and reuse approach, could potentially serve as a sustainable solution to abate the adverse effects of plastics. Thus, plastic waste could contribute to a sustainable circular and climate-neutral economy as a result of its durability and recyclability. This review presents a comprehensive report on microplastic management and transformation strategies, reflecting bioremediation coupled with circular economy-based solutions to microplastic pollution. It also highlights future recommendations to stakeholders and for governmental policies for the reduction of plastic pollution by potentially utilizing plastic waste in a circular economy to generate wealth from waste. Overall, this article provides an exhaustive and essential overview of microplastic treatment procedures and their role in the circular economy, where plastic waste generated by aquatic and food-based ecosystems might possibly be managed and re-utilized.

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Section: Innovative Biotechnological Methods To Augment Enzyme Activi...mentioning

confidence: 99%

“…Metagenomicbased research revealed the presence of nearly 800 or more PET hydrolases in the strains of archaea and bacteria from terrestrial and marine environments. Pseudomonas pelagia cutinase is involved in the degradation of polyester [80]. P. pertucinogena can also be used to clean polyesters [81].…”

Section: Chemical Technologiesmentioning

confidence: 99%

Microplastics in Aquatic and Food Ecosystems: Remediation Coupled with Circular Economy Solutions to Create Resource from Waste

Dhiman,

Sharma,

Kumar

et al. 2023

Sustainability

View full text Add to dashboard Cite

show abstract

“…Degradative Enzymes: Bacteria are essential to bioremediation because they produce a range of enzymes that help break down contaminants. As an illustration, certain bacteria produce oxygenases, which initiate the oxidation reactions that degrade hydrocarbons, including PAHs [13]. Formation of Biofilms: Bacterial biofilms improve the efficiency of pollutant decomposition.…”

Section: Bacterial Bioremediationmentioning

confidence: 99%

Advances in Bioremediation Agents and Processes for Removal of Persistent Contaminants From Environment

PATIL,

DESAI

2024

Int J Pharm Pharm Sci

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The development of bioremediation agents and processes-a sustainable solution to environmental pollution has advanced significantly. This is particularly valid when handling persistent pollutants such as Polycyclic Aromatic Hydrocarbons (PAHs). This study reviews the state-of-the-art in bioremediation technology, emphasizing the vital role that bacteria and their metabolic pathways play in the breakdown of pollutants. Microorganisms, which can be any type of fungus or bacteria, have been employed because of their unique capacity to break down a broad spectrum of contaminants. A thorough grasp of the metabolic subtleties of these bacteria is essential for optimizing bioremediation methods, especially with regard to PAH breakdown. The exploration of eco-friendly technologies, such bioaugmentation and biostimulation, emphasizes the commitment to eco-friendly approaches to environmental remediation. This review presents strong case studies and acknowledges ongoing issues to demonstrate the practical effectiveness of bioremediation. Future advancements in bioremediation-a crucial aspect of environmental management-may be possible through the combination of genetic engineering and artificial intelligence, which could assist overcome current obstacles.

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On the Role of Temperature in the Depolymerization of PET by FAST‐PETase: An Atomistic Point of View on Possible Active Site Pre‐Organization and Substrate‐Destabilization Effects

et al. 2023

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Enzyme FAST‐PETase, recently obtained by machine learning approach, can depolymerize polyethylene terephthalate (PET), a synthetic resin employed in plastics and in clothing fibers. Therefore it represents a promising solution for the recycling of PET‐based materials. In the present study, a model of PET was adopted to describe the substrate, and all‐atoms classical molecular dynamics (MD) simulations on apo‐ and substrate bound‐ FAST‐PETase were carried out at 30°C and 50°C, to provide atomistic details on the binding step of the catalytic cycle. Comparative analysis sheds light on the interactions occurring between the FAST‐PETase and 4PET at 50 °C, the optimal working condition of the enzyme. Pre‐organization of the enzyme active and binding sites has been highlighted while MD of FAST‐PETase:4PET pointed out on the occurrence of solvent‐inaccessible conformations of the substrate promoted by the enzyme. Indeed, neither of these conformations were observed during MD of substrate alone in solution performed at 30 °C, 50 °C and 150 °C. The analysis led us to propose that, at 50 °C, the FAST‐PETase is pre‐organized to bind the PET and that the interactions occurring in the binding site can promote more reactive conformation of PET substrate, thus enhancing the catalytic activity of the enzyme.

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A minireview on the bioremediative potential of microbial enzymes as solution to emerging microplastic pollution

Cited by 13 publications

References 119 publications

Microplastics in Aquatic and Food Ecosystems: Remediation Coupled with Circular Economy Solutions to Create Resource from Waste

Microplastics in Aquatic and Food Ecosystems: Remediation Coupled with Circular Economy Solutions to Create Resource from Waste

Advances in Bioremediation Agents and Processes for Removal of Persistent Contaminants From Environment

On the Role of Temperature in the Depolymerization of PET by FAST‐PETase: An Atomistic Point of View on Possible Active Site Pre‐Organization and Substrate‐Destabilization Effects

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