Bioremediation of Synthetic and Industrial Effluents by Aspergillus niger Isolated from Contaminated Soil Following a Sequential Strategy

Gulzar, Tahsin; Huma, Tayyaba; Jalal, Fatima; Iqbal, Shazia; Abrar, Shazia; Kiran, Shumaila; Nosheen, Sofia; Hussain, Waqar; Rafique, Muhammad Asim

doi:10.3390/molecules22122244

Cited by 42 publications

(22 citation statements)

References 33 publications

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“…The role of laccases in the degradation of lignin in nature has been extensively reported (Fonseca et al 2010). These lignin-degrading enzymes are directly involved not only in the degradation of lignin in their natural lignocellulosic substrates but also in the degradation of various xenobiotic compounds, including dye (Gulzar et al 2017) and recalcitrant compounds found in effluents, helping thus the tolerance and survival of fungus in hostile environments. In this sense, P. sajor-caju could be ranked as promising polychlorinated biphenyls degraders of chlorinated organic pollutants (Sadañoski et al 2018).…”

Section: Discussionmentioning

confidence: 99%

COPPER IMPROVES THE PRODUCTION OF LACCASE BY Pleurotus sajor-caju WITH ABILITY TO GROW ON EFFLUENTS OF THE CITRUS INDUSTRY

Fonseca

Molina

Benítez

et al. 2020

Rev. Int. Contam. Ambie.

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This research is aimed to evaluate the effect of copper on biomass growth, laccase activity and isoenzymes composition of Pleurotus sajor-caju, and its ability to grow on effluents of the citrus industry. The inhibitory effect of copper on growth was evidenced especially after 14 days of culture in the presence of the highest concentration of copper (1 mM) reducing almost three times its growth. The highest enzyme activity was reached at the 10th day of treatment, with ~ 53 U/L for the medium without copper and ~ 121 and ~ 68 U/L for medium supplemented with 0.5 and 1mM, respectively. Laccases in cell-free extracts obtained from culture added with copper showed to be more stable for more time at temperature changes. The optimum temperature for laccase activity increased from 50 to 60 ºC by effect of copper while the optimal pH was 5 in all experiments. In gels, it was possible to observe two isoenzymes of 65 and 35 kDa whose expression varied according to incubation time. Moreover, the isoenzyme of low molecular weight was induced by the presence of effluent in solid medium. P. sajor-caju had the ability to grow on effluents from the citrus industry, showing tolerance and potential for waste treatment, constituting a possible alternative to biodegrade and reduce the contaminating impact of effluents. Palabras clave: biotecnología, catalizadores verdes, hongo de pudrición blanca RESUMEN Esta investigación tuvo como objetivo evaluar el efecto del cobre en el crecimiento de la biomasa, la actividad de lacasas y la composición de isoenzimas de Pleurotus sajorcaju, así como su capacidad para crecer en los efluentes de la industria citrícola. El efecto inhibidor del cobre sobre el crecimiento se evidenció especialmente después de 14 días de cultivo en presencia de la mayor concentración de cobre (1 mM), reduciendo casi tres veces el crecimiento. La actividad enzimática más alta se alcanzó a los 10 días para todos los tratamientos, con ~ 53 U/L para el medio sin cobre y ~

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Section: Discussionmentioning

confidence: 99%

COPPER IMPROVES THE PRODUCTION OF LACCASE BY Pleurotus sajor-caju WITH ABILITY TO GROW ON EFFLUENTS OF THE CITRUS INDUSTRY

Fonseca

Molina

Benítez

et al. 2020

Rev. Int. Contam. Ambie.

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“…Several researchers have suggested different processes and technologies for the remediation of textile wastewater [40][41][42][43]; most of them have employed microbial agents, including bacterial and fungal species, from a variety of sources [44]. Agricultural residual materials have complex structures with high strength, environmentally friendly nature, low cost, and global availability.…”

Section: Conclusion and Future Perspectivementioning

confidence: 99%

Waste Management by Biological Approach Employing Natural Substrates and Microbial Agents for the Remediation of Dyes’ Wastewater

Dahiya

Nigam

2020

Applied Sciences

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This article aims to provide information on two aspects: firstly, waste management of residual biological agro-industrial materials generated from agriculture, and secondly, for the sustainable remediation of textile wastewater. Annually, huge amounts of solid renewable biomass materials are generated worldwide from agricultural and farming sectors. The generation of these vast amounts of solid wastes could be utilised as a valuable and renewable natural resource for various applications. The goal of promoting sustainable development has increased the interest in recycling wastes economically and in an eco-friendly way. This article reviews the published research on this topic and discusses the usage of these solid substrates in the remediation of a major environmental component, textile dye-contaminated water. The purpose of this article is to discuss an integrated and cross-disciplinary approach to sustainable solid and liquid waste management and remediation of environmental components and to report the biological approaches and their efficiency in a chemical-free and economically viable bioremediation process for large volumes of dye-contaminated water resources.

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“…Initial dye concentrations usually range from 50-1000 mg/L. Decolorizations mainly depend on the nature of the microbe and type of dye in use [20].…”

Section: Effect Of Synthetic Dye Wastewater Concentrationmentioning

confidence: 99%

Lignin Degrading System of Phanerochaete chrysosporium and its Exploitation for Degradation of Synthetic Dyes Wastewater

Kiran¹,

Huma²,

Jalal³

et al. 2019

Pol. J. Environ. Stud.

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Azo dyes are the main group of dyes used in different industrial applications. These dyes are highly toxic for aquatic life, so their removal is of utmost importance before they can be disposed of in a main water body. The present study focused on degrading/mineralizing the synthetic reactive dye wastewater. Initial experiments were done with four indigenous white rot fungi. P. chrysosporium (PC) showed more potential toward degradation of synthetic dye wastewater than other three fungal strains, so it was selected for further optimization of different fermentation parameters. Maximum decolorization (84.8%) of reactive dye wastewater was obtained at pH 5, inoculum size 4 mL, and 30ºC. After optimizing experimental parameters, the effects of different nutritional factors like carbon and nitrogen sources were also studied. Decolorization of synthetic dye wastewater was increased from 84.8 to 89.2%, when rice bran was used as an additional carbon source. However, no increase in decolorization of synthetic dye wastewater was observed in the presence of nitrogen supplements. The screened fungal strain decolorized the wastewater up to 90%. The effect of different nutritional factors enhanced the degradation capability of the fungal strain under study. UV-visible and FTIR analyses confirmed the degradation of synthetic dye wastewater into simpler, non-toxic products.

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Bioremediation of Synthetic and Industrial Effluents by Aspergillus niger Isolated from Contaminated Soil Following a Sequential Strategy

Cited by 42 publications

References 33 publications

COPPER IMPROVES THE PRODUCTION OF LACCASE BY Pleurotus sajor-caju WITH ABILITY TO GROW ON EFFLUENTS OF THE CITRUS INDUSTRY

COPPER IMPROVES THE PRODUCTION OF LACCASE BY Pleurotus sajor-caju WITH ABILITY TO GROW ON EFFLUENTS OF THE CITRUS INDUSTRY

Waste Management by Biological Approach Employing Natural Substrates and Microbial Agents for the Remediation of Dyes’ Wastewater

Lignin Degrading System of Phanerochaete chrysosporium and its Exploitation for Degradation of Synthetic Dyes Wastewater

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