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

Igiehon, Nicholas O.; Babalola, Olubukola Oluranti

doi:10.1002/jobm.201800011

Cited by 10 publications

(5 citation statements)

References 37 publications

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“…and Saccharomyces sp. at 16.1, 8.1, 4.0 and 2.0 mg/L Cr (VI) concentrations has been observed previously (Igiehon and Babalola, 2019); but these species were isolated from different environmental sources. They were also observed to reduce and bio-absorb Cr (VI) and could therefore serve as biological systems for the removal of contaminants from soil and liquid matrices if fully explored.…”

Section: Discussionsupporting

confidence: 50%

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REMOVAL OF Cr (VI) from NORKRAN’S LIQUID MEDIUM USING Aspergillus fumigatus and Rhizopus sp.

Igiehon,

Igbinomwanhia

2023

AJHSE

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Soil and water pollution caused by heavy metals can result in health challenges such as cancer. Therefore, this study was aimed at testing the ability of Aspergillus fumigatus and Rhizopus sp. isolated from cassava grinding mill environment to reduce, bio-accumulate and tolerate Cr (VI) in Norkran’s medium. Fungal isolates were obtained from soil samples using 2 % malt extract agar. Cr (VI) reduction potential of the fungal cells was done using shake flask method. The tolerance of fungal isolates to the different concentrations of Cr (VI) used for the bio-sorption experiment was determined by collecting 1 ml of Norkran’s sample from each experimental flask on days 0, 5, 10 and 20 followed by inoculation in 2 % malt extract agar plates. The ability of fungal isolates to adapt to increasing Cr (VI) concentrations was ascertained by inoculating mycelial ball on 2 % malt extract agar amended with 16.1 mg/L of Cr (VI). There were reductions of Cr (VI) for all the treatments amended with A. fumigatus and Rhizopus sp. at 16.1, 8.1, 4.0 and 2.0 mg/L concentrations of Cr (VI) while 50 % decrease in Cr (VI) concentrations was observed for treatments inoculated with Rhizopus sp. on days 20, 10 and 5 at concentrations of 8.1, 4.0 and 2.0 mg/L respectively. The amounts of Cr (VI) observed at a concentration of 16.1 mg/L on day 20 for treatments inoculated with Rhizopus sp. were observed to be significantly less than (P<0.05) those of A. fumigatus. The fungal tolerance assay demonstrated increase in fungal abundance throughout the experimental period for all the treatments indicating that the different concentrations of Cr (VI) used were not toxic to the fungal species. Induce-tolerance assay suggested that Cr (VI) was able to induce metal tolerance potential in these fungal species. Findings from this investigation revealed that these fungi can be further explored biotechnologically to clean-up chromium contaminated environment

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Section: Discussionsupporting

confidence: 50%

“…Two % (2%) malt extract agar was prepared as described by Igiehon and Babalola (2019) Isolation of fungi from cassava grinding mill environment:…”

Section: Samplingmentioning

confidence: 99%

REMOVAL OF Cr (VI) from NORKRAN’S LIQUID MEDIUM USING Aspergillus fumigatus and Rhizopus sp.

Igiehon,

Igbinomwanhia

2023

AJHSE

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“…In literature, Xu et al [63] isolated Paecilomyces lilacinus XLA, which was able to achieve 96.86% reduction of 100 mg/l Cr (VI) in minimum mineral (MM) medium after an incubation of 14 days. Long et al [64] isolated Penicillium oxalicum SL2, which was able to achieve 89.6% reduction of 217 mg/l Cr (VI) from electroplating wastewater after an incubation of 96 h. Igeihon and Babalola, [65] isolated Penicillium sp., which was able to achieve 50% reduction of 16.1 mg/l Cr (VI) in Norkrans medium after an incubation of 20 days. Kumar and Dwivedi [66] isolated Trichoderma lexii, which was able to achieve 99.4% reduction of 50 mg/l Cr (VI) in potato dextrose broth medium after an incubation of 120 h. Hence, the expulsion of Cr (VI) was reported to be prominent in fungi.…”

Section: Fungimentioning

confidence: 99%

Novel Approaches for Sustainable Management of Chromium Contaminated Wastewater

Kumar,

Singh Saini

2024

Wastewater Treatment - Past and Future Perspectives [Working Title]

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The release of high volumes of untreated effluents containing different forms of chromium into waterbodies and further use of this wastewater for ferti-irrigation purposes pose a direct threat to health of human populations consuming produces from such agricultural fields. The higher concentration of chromium above permissible limits at these sites may pose harm to flora and fauna. The conventional processes used for treatment of chromium-containing effluents have low treatment efficiency, high operational costs, and produce toxic sludge requiring safe disposal. In contrast, the approaches exploiting use of living systems, such as microbes/microbial products and microbes, may provide sustainable treatment options. The emerging advanced/novel treatment technologies based on harnessing metabolic potential of microbiome of the polluted sites have potential to achieve the efficient removal of heavy metals from polluted sites. The success of protocols developed and tested at lab scale needs to be replicated at pilot/industrial to handle high volumes with varying levels of organic co-contaminants and harsh physiological conditions. The presented chapter provides an overview of impact of high chromium levels on ecosystem and various treatment processes with advanced aspect of management of heavy metals to prevent harmful effects on the environment.

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“…These methods are not wholly effective at concentrations less than 100 mg L −1 and are costly and eco-unfriendly . Alternatively, bioremediation, as an environmentally friendly and inexpensive method, has gained much attention (Igiehon & Babalola, 2019).…”

Section: Introductionmentioning

confidence: 99%

Iron stress response and bioaccumulation potential of three fungal strains isolated from sewage-irrigated soil

El-Sayed

Ezzat

Taha

et al. 2022

Journal of Applied Microbiology

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Aims: Contamination with heavy metal (HM) is a severe environmental issue.Therefore, there is a pressing need to create environmentally safe and cost-effective HM bioremediation approaches. Methods and Results: Three iron-tolerant fungal strains were isolated from sewageirrigated soils, molecularly identified and deposited in the GenBank as Aspergillus flavus MT639638, A. terreus MT605370 and Fusarium oxysporum MT605399. The fungal growth, minimum inhibitory concentration (MIC), tolerance index (TI), removal efficiency, bioaccumulation, and enzymatic and non-enzymatic antioxidants were determined. Based on MIC values, A. flavus MT639638 was the most resistant strain. F. oxysporum displayed the highest percent removal efficiency (93.65% at 4000 mg L −1 ) followed by A. flavus (92.92%, at 11,000 mg L −1 ), and A. terreus (91.18% at 3000 mg L −1 ). F. oxysporum was selected based on its highly sensitivity for further characterization of its response to Fe(II) stress using TEM, SEM and EDX, in addition to HPLC analysis of organic acids. These analyses demonstrated the localization of bioaccumulated Fe(II) and ultrastructural changes induced by iron and indicated induction release of organic acids. Conclusions:Our fungal strains showed an effective capacity for removal of Fe(II) via bioaccumulation and biosorption mechanisms which were supported by instrumental analyses. The iron tolerance potentiality was mediated by induction of selected antioxidative enzymes and biomolecules. Significance and Impact of the Study:This study depicts a potential utilization of the three fungal strains for the bioremediation of iron-contaminated soils.

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

Cited by 10 publications

References 37 publications

REMOVAL OF Cr (VI) from NORKRAN’S LIQUID MEDIUM USING Aspergillus fumigatus and Rhizopus sp.

REMOVAL OF Cr (VI) from NORKRAN’S LIQUID MEDIUM USING Aspergillus fumigatus and Rhizopus sp.

Novel Approaches for Sustainable Management of Chromium Contaminated Wastewater

Iron stress response and bioaccumulation potential of three fungal strains isolated from sewage-irrigated soil

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