Discoloration of indigo dyes by eco-friendly biocatalysts

Choi, Kwon‐Young

doi:10.1016/j.dyepig.2020.108749

Cited by 34 publications

(22 citation statements)

References 116 publications

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“…The type of microorganism for dye removal is crucial, as some bacteria, fungi or algae use some of the different enzymes they produce [160,161]. In general, enzyme-mediated biodegradation of dyes is efficient [15], as the catalytic activity increases the reaction speed, and little concentration of the enzyme is required. Therefore, microorganisms producing the proper enzymes can act on the dyestuffs and efficiently reduce or remove water pollution [123].…”

Section: Treatment Of Coloured Wastewatermentioning

confidence: 99%

“…Activity of laccases increased with mediators such as ABTS (most widely used), 1hydroxybenzotriazole (HBT), hydroxyphthalimide (HPI), 2,2,6,6-tetramethyl-1-piperidnyloxy (TEMPO), acetosyringone (ACS), violuric acid (VA), syringaldehyde (SA), and vanillin (VA) [15,267,276,277] (Table 7). Each mediator requires different optimal conditions for reaction with a target compound and can oxidize the substrate by some of the three reported mechanisms (hydrogen atom transfer, electron transfer and ionic mechanisms) [267].…”

Section: Biotechnological Applications Of Laccasesmentioning

confidence: 99%

“…White rot fungi are the most efficient at breaking down synthetic dyes because they produce enzymes that catalyze the dye removal and degradation reactions [14]. The colour removal efficiency is under the control of pH, nutrient load, treatment time, aeration, C/N ratio, biomass morphology, inoculum concentration, co-substrate addition, and the production of toxic by-products [2,15]. Due to some phenolic compounds inhibit fungal growth during bioremediation processes [16], the enzymes are an alternative to reduce the pollution and the environmental impact of industrial effluents they generate [17].…”

Section: Introductionmentioning

confidence: 99%

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A Brief History of Colour, the Environmental Impact of Synthetic Dyes and Removal by Using Laccases

et al. 2021

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The history of colour is fascinating from a social and artistic viewpoint because it shows the way; use; and importance acquired. The use of colours date back to the Stone Age (the first news of cave paintings); colour has contributed to the social and symbolic development of civilizations. Colour has been associated with hierarchy; power and leadership in some of them. The advent of synthetic dyes has revolutionized the colour industry; and due to their low cost; their use has spread to different industrial sectors. Although the percentage of coloured wastewater discharged by the textile; food; pharmaceutical; cosmetic; and paper industries; among other productive areas; are unknown; the toxic effect and ecological implications of this discharged into water bodies are harmful. This review briefly shows the social and artistic history surrounding the discovery and use of natural and synthetic dyes. We summarise the environmental impact caused by the discharge of untreated or poorly treated coloured wastewater to water bodies; which has led to physical; chemical and biological treatments to reduce the colour units so as important physicochemical parameters. We also focus on laccase utility (EC 1.10.3.2), for discolouration enzymatic treatment of coloured wastewater, before its discharge into water bodies. Laccases (p-diphenol: oxidoreductase dioxide) are multicopper oxidoreductase enzymes widely distributed in plants, insects, bacteria, and fungi. Fungal laccases have employed for wastewater colour removal due to their high redox potential. This review includes an analysis of the stability of laccases, the factors that influence production at high scales to achieve discolouration of high volumes of contaminated wastewater, the biotechnological impact of laccases, and the degradation routes that some dyes may follow when using the laccase for colour removal

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Section: Treatment Of Coloured Wastewatermentioning

confidence: 99%

Section: Biotechnological Applications Of Laccasesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Brief History of Colour, the Environmental Impact of Synthetic Dyes and Removal by Using Laccases

et al. 2021

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“…The well‐known indoxyl (3‐hydroxyindole) can be synthesized by introducing a hydroxyl moiety through a monooxygenase enzyme reaction at the indole C3 position 52. Subsequent oxidation of indoxyl leads to the generation of indoxyl radicals, and two molecules of indoxyl radicals are converted to a well‐known blue‐colored indigo dye‐a symmetric dimer‐through a self‐dimerization reaction 53–57. According to recent studies, several monooxygenases such as flavin monooxygenase (FMO), cytochrome P450 monooxygenase (CYP), toluene dioxygenase (TDO), and naphthalene dioxygenase (NDO) were involved in indole C3‐hydroxylation and bio‐indigo formation from L‐tryptophan 58–64.…”

Section: Deamination Of Aromatic Amino Acids and Cosmetic And Pharmacmentioning

confidence: 99%

Nitrogen‐Neutral Amino Acids Refinery: Deamination of Amino Acids for Bio‐Alcohol and Ammonia Production

Choi

2021

ChemBioEng Reviews

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Amino acids are a valuable bioresource that contains both the acid form of carbon and the amine group of nitrogen. Amino acids not only constitute proteins and the building blocks for living organisms but also provide a key intermediate for controlling the nitrogen balance in cells. The production of amino acids using microorganisms has, along with the development of biotechnology, created a large market for biochemicals. In parallel, there have been various biochemical production methods using pulmonary proteins or direct amino acids as biomass through enzymatic bioconversion or whole‐cell biotransformation. The deamination of amino acids facilitated the applications of 2‐keto and acrylic acids, in particular, for biofuels of bio alcohol, pharmaceuticals, cosmetics, as building blocks for polymers, and other versatile industrial chemicals. In this review, we report on the application of amino acids derived from biochemicals initiated by deamination reactions using deaminase, ammonia‐lyase, and oxidase enzymes for biotechnology applications.

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“…Population growth allied to industrial development has caused serious environmental problems, such as pollution of soil and water by chemicals (Zhang et al 2011;Rodríguez-Couto 2017;Choi 2021). Among the pollutants, the e uents from paper, cellulose, textile and petrochemical industries and from alcohol distilleries contain aromatic, recalcitrant and xenobiotic compounds, responsible for the intense color and toxicity of wastewater (Sharma et al 2011;Almeida et al 2017;Chowdhury et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Discoloration of dyes by Trametes spp

VFdSC

et al. 2021

Preprint

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The dyes used in the textile industry contribute significantly to pollution of water sources as they are disposed, most of the time, without proper treatment. The objective of this work was to test three strains of two species of the genus Trametes collected in Brazil against the ability to discolor the indigo carmine dye and to detect the activity of the enzymes laccase, lignin peroxidase and manganese peroxidase. The experiment was carried out in Kirk medium under static, non-sterile condition, at ±28 °C for 120 h. Trametes lactinea (URM8350) discolored 81.40% of the indigo carmine dye, T. lactinea (URM8354) 85.09% and T. villosa (URM8022) 96.11%. Laccase was detected in all specimens. Manganese peroxidase was detected in T. villosa (URM8022) and T. lactinea (URM8354), while lignin peroxidase was not detected in any of the isolates under the conditions of the experiment. The discoloration rates observed demonstrate the ability of the strains to discolor carmine indigo and the promising use in the discoloration processes in wastewater from the textile segment.

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Discoloration of indigo dyes by eco-friendly biocatalysts

Cited by 34 publications

References 116 publications

A Brief History of Colour, the Environmental Impact of Synthetic Dyes and Removal by Using Laccases

A Brief History of Colour, the Environmental Impact of Synthetic Dyes and Removal by Using Laccases

Nitrogen‐Neutral Amino Acids Refinery: Deamination of Amino Acids for Bio‐Alcohol and Ammonia Production

Discoloration of dyes by Trametes spp

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