Enzyme-mediated dye degradation
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Abstract
Abstract
The textile industry generates dye-containing wastewater characterized by intense coloration, high salinity, elevated oxygen demand, and recalcitrant pollutants. Although conventional treatment technologies can remove color and reduce organic load, decolorization alone does not guarantee detoxification because toxic transformation products may persist or be generated during incomplete degradation. This review emphasizes the synergistic interaction between oxidative and reductive enzymes and microorganisms as a promising strategy for promoting extensive pollutant transformation and potentially enhancing mineralization. Particular attention is given to the complementary roles of laccases (LAC), azoreductases (AZOR), ligninolytic peroxidases, bacteria, fungi, and microbial consortia in sequential degradation pathways that can improve detoxification efficiency. Mechanisms including azo bond cleavage, aromatic amine transformation, and subsequent microbial degradation are discussed to demonstrate how integrated systems can overcome the limitations of enzyme- or microorganism-based treatments alone and may facilitate complete pollutant removal under appropriate conditions. The review also explores biomass-derived biocatalysts produced through solid-state fermentation of agro-industrial residues, demonstrating opportunities to integrate wastewater remediation with biomass valorization and circular bioeconomy principles. Finally, operational challenges, toxicity assessment, reactor design, enzyme immobilization, scale-up, and techno-economic considerations are discussed, and future research priorities are identified to support the development of sustainable and industrially applicable enzymatic–microbial detoxification technologies.
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@article{Quinto2026Integrated,
title = {Integrated Enzymatic–Microbial Systems for Textile Wastewater Detoxification: Mechanisms, Synergies and Industrial Perspectives},
author = {Alisson Santos da Silva Quinto and Igor Carvalho Fontes Sampaio and Isabela Viana Lopes de Moura and Adriana Bispo Pimentel and Rafael Rocha Teixeira and Sônia Marise Salles Carvalho and Gabriel Lucas Silva de Jesus and Marcelo Franco},
journal = {Biomass},
year = {2026},
doi = {10.3390/biomass6040057},
url = {https://doi.org/10.3390/biomass6040057}
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