EPR and LC-MS studies on the mechanism of industrial dye decolorization by versatile peroxidase from Bjerkandera adusta

Baratto, Maria Camilla; Juárez-Moreno, Karla; Pogni, Rebecca; Basosi, Riccardo; Vázquez-Duhalt, Rafael

doi:10.1007/s11356-014-4051-9

Cited by 34 publications

(3 citation statements)

References 68 publications

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“…One such peroxidase produced by B. adusta was shown to disrupt the phthalocyaninic ring in phthalocyanine dyes by cleavage of azo bond thus leading to decolorization of azo and phthalocyanine dye. The mineralization capacity of the fungal enzyme for dye was validated by identification of the transformation products by EPR spectroscopy and mass spectrometry [120]. Recently, a MnP enzyme from C. subvermispora was engineered for enhancing the acidic stability even at pH 2.…”

Section: Peroxidasementioning

confidence: 99%

Diverse Metabolic Capacities of Fungi for Bioremediation

2016

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Bioremediation refers to cost-effective and environment-friendly method for converting the toxic, recalcitrant pollutants into environmentally benign products through the action of various biological treatments. Fungi play a major role in bioremediation owing to their robust morphology and diverse metabolic capacity. The review focuses on different fungal groups from a variety of habitats with their role in bioremediation of different toxic and recalcitrant compounds; persistent organic pollutants, textile dyes, effluents from textile, bleached kraft pulp, leather tanning industries, petroleum, polyaromatic hydrocarbons, pharmaceuticals and personal care products, and pesticides. Bioremediation of toxic organics by fungi is the most sustainable and green route for cleanup of contaminated sites and we discuss the multiple modes employed by fungi for detoxification of different toxic and recalcitrant compounds including prominent fungal enzymes viz., catalases, laccases, peroxidases and cyrochrome P450 monooxygeneses. We have also discussed the recent advances in enzyme engineering and genomics and research being carried out to trace the less understood bioremediation pathways.

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Section: Peroxidasementioning

confidence: 99%

Diverse Metabolic Capacities of Fungi for Bioremediation

2016

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“…Peroxidases are predominantly synthesized by fungal species during the process of dyes degradation. Fungal peroxidase isolated from Bjerkandera adusta efficiently decolorized azo dye present in industrial effluent (Baratto et al, 2015). Santos et al (2014) identified two new bacterial dye-decolorizing peroxidases from B. subtilis and P. putida MET94.…”

Section: Peroxidasesmentioning

confidence: 99%

Optimization of Media Components and Process Parameters for Microbial Mediated Remediation of Azo Dyes: A Review

Uppala¹,

Muthukumaran

2021

J microb biotech food sci

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Azo dyes are one of the most commonly used synthetic dyes with enormous applications in the textile industry. The recalcitrant properties of azo dyes could be attributed to the highly complex chemical organization. The limitations such as high cost and emergence of secondary toxic pollutants as by-products associated with physicochemical mode of degradation urged researchers to explore potential alternatives. Microorganisms having versatile metabolic pathways and adaptations to different environmental conditions gained the attention of researchers to exploit them for azo dyes degradation in a cost-effective manner. The azo dye degradation using microbial sources proved to be a promising approach as compared to conventional physicochemical approaches. Microorganisms can induce different metabolic pathways in response to the external environment. The biodegradation efficacy of the microorganisms-based approach can be maximized by optimizing the culture media and process parameters. Optimization techniques predict the conditions required to increase the efficacy of azo dyes degradation by microbial sources and also decrease the number of experimental runs to achieve the maximum percentage of degradation. Interaction of variables such as medium components and process parameters can be determined using optimization tools. Response Surface Methodology (RSM) and Artificial Neural Network (ANN) based optimization approaches were discussed in this review with special emphasis on microbial degradation of azo dyes.

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“…[ 126 ]. In addition, purified VP from Bjerkandera adusta was able to decolorize dyes, including azo, phthalocyanines, and anthraquinones [ 127 ].…”

Section: Linking Oxidative Ability Of Lignin-degrading Enzymes To mentioning

confidence: 99%

Linking Enzymatic Oxidative Degradation of Lignin to Organics Detoxification

Wang

Yao

2018

IJMS

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The major enzymes involved in lignin degradation are laccase, class II peroxidases (lignin peroxidase, manganese peroxidase, and versatile peroxidase) and dye peroxidase, which use an oxidative or peroxidative mechanism to deconstruct the complex and recalcitrant lignin. Laccase and manganese peroxidase directly oxidize phenolic lignin components, while lignin peroxidase and versatile peroxidase can act on the more recalcitrant non-phenolic lignin compounds. Mediators or co-oxidants not only increase the catalytic ability of these enzymes, but also largely expand their substrate scope to those with higher redox potential or more complicated structures. Neither laccase nor the peroxidases are stringently selective of substrates. The promiscuous nature in substrate preference can be employed in detoxification of a range of organics.

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EPR and LC-MS studies on the mechanism of industrial dye decolorization by versatile peroxidase from Bjerkandera adusta

Cited by 34 publications

References 68 publications

Diverse Metabolic Capacities of Fungi for Bioremediation

Diverse Metabolic Capacities of Fungi for Bioremediation

Optimization of Media Components and Process Parameters for Microbial Mediated Remediation of Azo Dyes: A Review

Linking Enzymatic Oxidative Degradation of Lignin to Organics Detoxification

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