Enzymatic treatment and subsequent toxicity of organic micropollutants using oxidoreductases - A review

Varga, Béla; Somogyi, Viola; Meiczinger, Mónika; Kováts, Nóra; Domokos, Endre

doi:10.1016/j.jclepro.2019.02.135

Cited by 89 publications

(49 citation statements)

References 161 publications

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“…Laccases are able to catalyze the oxidation of various aromatic compounds (particularly phenols) with the concomitant reduction of oxygen to water Their active site consists of 4 copper atoms, one responsible for the oxidation of phenolic groups and a cluster of 3 copper atoms responsible for the activation of oxygen. However, the mechanism of action of laccases, and in particular the role of the metal center, remains poorly known but many authors agree with the fact that it is a radical mechanism [6][7][8][9] (Figure 1). Laccase (EC 1.10.3.2) from Trametes versicolor, is an oxidoreductase enzyme which had been extensively studied for the biodegradation of antibiotics and found very promising due to its ability to oxidize large variety of these pharmaceuticals.…”

Section: Introductionmentioning

confidence: 99%

Enzymatic monolithic reactors for micropollutants degradation

et al. 2021

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Silica monoliths with uniform macro-/mesoporous structures (20 µm and 20 nm macro-and mesopores diameters, respectively), high porosity (83%) and high surface area (370 m 2 g -1 ) were prepared. The monoliths were grafted with amino groups (0.9 mmol NH 2 g -1 ) and used to immobilize laccase from Trametes versicolor by covalent grafting with glutaraldehyde (GLU)(1.0 mmol GLU g -1 ) leading to an ABTS activity of 20 U g -1 . Immobilization yield was 80%, based on the difference of initial and final activity of enzymatic solution used for immobilization. Enzymatic monoliths were used for the degradation of tetracycline (TC) in aqueous solution (20 mg L -1 ) in continuous flow with recycling configuration. TC degradation efficiency was found to be 40-50 % after 5 h of reaction at pH 7. Enzymatic monoliths were used during 75 hours of sequential operation without losing activity. A Steady-state computational fluid dynamics (CFD) model based on Michaelis Menten reaction kinetics, allowed computing TC degradation efficiency.

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Section: Introductionmentioning

confidence: 99%

Enzymatic monolithic reactors for micropollutants degradation

et al. 2021

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“…Since Solomon's influential review of multicopper oxidases and oxygenases in 1996, 1 there have been numerous review articles that cover MCOs. 9,[52][53][54][55][56][57][58] The dozens of reviews that were published from 2017 to the present include both general summaries 13,59,60 and more focused reviews that cover wastewater and soil remediation (including dye and pharmaceutical degradation); 38,39,41,[61][62][63][64][65][66][67][68][69][70][71][72][73][74][75] pulp, paper, lignin and wood processing (including lignin valorization); 67,68,[76][77][78][79][80] chemical synthesis; [80][81][82][83][84] polymer synthesis (including lignin formation); 79,[85][86][87][88]…”

Section: Morgane Vallesmentioning

confidence: 99%

Inhibition in multicopper oxidases: a critical review

Valles

Kamaruddin

Wong

et al. 2020

Catal. Sci. Technol.

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“…These compounds are hard to be tracked or controlled in most situations (Mishra et al, 2020) due to their nanograms-micrograms per liter concentrations in the environment (Virkutyte et al, 2010). They are typically toxic, easy to bioaccumulate, and resistant to natural biodegradation, posing a great threat to the environment and all living organisms (Sauvé & Desrosiers, 2014;Varga et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Roles and applications of enzymes for resistant pollutants removal in wastewater treatment

Feng

Ngo

Guo

et al. 2021

Bioresource Technology

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Resistant pollutants like oil, grease, pharmaceuticals, pesticides, and plastics in wastewater are difficult to be degraded by traditional activated sludge methods. These pollutants are prevalent, posing a great threat to aquatic environments and organisms since they are toxic, resistant to natural biodegradation, and create other serious problems. As a high-efficiency biocatalyst, enzymes are proposed for the treatment of these resistant pollutants. This review focused on the roles and applications of enzymes in wastewater treatment. It discusses the influence of enzyme types and their sources, enzymatic processes in resistant pollutants remediation, identification and ecotoxicity assay of enzymatic transformation products, and typically employed enzymatic wastewater treatment systems.Perspectives on the major challenges and feasible future research directions of enzyme-based wastewater treatment are also proposed.

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Enzymatic treatment and subsequent toxicity of organic micropollutants using oxidoreductases - A review

Cited by 89 publications

References 161 publications

Enzymatic monolithic reactors for micropollutants degradation

Enzymatic monolithic reactors for micropollutants degradation

Inhibition in multicopper oxidases: a critical review

Roles and applications of enzymes for resistant pollutants removal in wastewater treatment

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