Reduction of hexavalent chromium using fungi and bacteria isolated from contaminated soil and water samples

Bennett, Reuel M.; Cordero, Paul R. F.; Bautista, Gershon S.; Dedeles, Gina R.

doi:10.1080/02757540.2013.770478

Cited by 80 publications

(27 citation statements)

References 30 publications

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“…This showed that increase in fungal biomass led to a decrease in Cr(VI). This finding is in line with the result of Bennett et al who reported absorption of Cr(VI) by Aspergillus flavus and A. niger .…”

Section: Discussionsupporting

confidence: 93%

Fungal bio‐sorption potential of chromium in Norkrans liquid medium by shake flask technique

Igiehon

Babalola

2018

J Basic Microbiol

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In this study, the myco‐reduction potential of fungi isolated from soil was ascertained by Norkrans shake flask experiment contaminated with chromium(VI). Fungal tolerance assay and induced tolerance training of the fungi were also carried out. Aspergillus niger, Penicillium, and Saccharomyces strains were isolated from the soil samples using culture based technique. Norkrans samples were collected and analyzed for Cr(VI) concentration using diphenylcarbazide spectrophotometric method. Penicillium strain was observed to be most effect at Cr(VI) concentrations of 16.1 and 8.1 mg L−1 since it was able to reduce Cr(VI) more than Saccharomyces strain and A. niger on day 20. Bio‐sorption kinetics for this study was better described by pseudo second order model while Langmuir isotherm model fitted better to the equilibrium data. There was virtually steady increase in fungal growth for all the treatments through‐out the experimental period. Significant negative correlation (p < 0.05) was observed between fungal growth and Cr(VI) reduction rate. The results from the induced tolerance training showed that Penicillium had the highest tolerance index (TI) values at 18, 20, and 25 mg L−1 concentrations of Cr(VI) compared to A. niger and Saccharomyces strain. These results demonstrated that these fungi have the potential to bio‐absorb Cr(VI) and if properly harnessed, could be used in place of conventional remediation technology to clean‐up the Cr(VI) contaminant in the field.

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Section: Discussionsupporting

confidence: 93%

Fungal bio‐sorption potential of chromium in Norkrans liquid medium by shake flask technique

Igiehon

Babalola

2018

J Basic Microbiol

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“…A. flavus and A. niger have been reported for their capacity to reduce heavy metals such as Cr 6? to Cr 3? [62]. Another species, A. foetidus isolated from a wastewater treatment plant was found to be tolerant to high concentrations of lead (Pb) up to 200 mg/L which was removed through biosorption [81] as was also observed in bioremediation of aqueous substrates containing mercury (II) by A. flavus strain which was able to remove about 98 % mercury in presence of 10 mg/L mercury in the medium [82].…”

Section: Bioremediation Of Heavy Metalsmentioning

confidence: 87%

“…Members of the basidiomycota, such as T. versicolor and white-rot fungi Pleurotus ostreatus have been reported to degrade model PAHs in solid-state fermentation (SSF) during growth on agroindustrial wastes, such as orange peels [29]. Bioremediation/decolourization of coloured effluents from sugar industry, textile dye, bleached kraft pulp mill, leather tanning effluents has been reported in case of fungi belonging to various groups including Aspergillus, Penicillium and alkalophilic white-rot fungi indicating diverse substrate preference of these fungi [14,[60][61][62][63][64]. Coffee pulp could be decaffeinated in presence of fungi under controlled conditions with extra nutrients for applications in animal feed preparation or for bioethanol production as was studied in case of fungi such as Aspergillus restrictus, Chrysosporium keratinophilum, Fusarium solani, Gliocladium roseum, Penicillium and Stemphylium [65].…”

Section: Bioremediation Potential Of Fungimentioning

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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“…In acidic medium, the fungal cell wall becomes highly protonated due to excess + H ions that binds to functional groups (-OH, -NH , -NH, and -C=O) (Bennett et al, 2013;De 2 Sotto et al, 2015).…”

Section: Effect Of Ph On Lead Biosorptionmentioning

confidence: 99%

Biosorption of lead (II) ion using <i>Penicillium citrinum</i> KR706304 isolated from the mangrove soil environment of southeast Borneo.

Wahab¹,

Awang²,

Zulkharnain³

et al. 2017

Ife Journal of Science

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Reduction of hexavalent chromium using fungi and bacteria isolated from contaminated soil and water samples

Cited by 80 publications

References 30 publications

Fungal bio‐sorption potential of chromium in Norkrans liquid medium by shake flask technique

Fungal bio‐sorption potential of chromium in Norkrans liquid medium by shake flask technique

Diverse Metabolic Capacities of Fungi for Bioremediation

Biosorption of lead (II) ion using <i>Penicillium citrinum</i> KR706304 isolated from the mangrove soil environment of southeast Borneo.

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