Skip to main content

Advertisement

Log in

Biosorption of copper by immobilized biomass of Aspergillus australensis. Effect of metal on the viability, cellular components, polyhydroxyalkanoates production, and oxidative stress

  • Advances in Environmental Biotechnology and Engineering 2018
  • Published:
Environmental Science and Pollution Research Aims and scope Submit manuscript

Abstract

Heavy metals are toxic especially when they are introduced into the environment due to anthropogenic activities such as metallurgy, mining, and tanning. Removing these pollutants has become a worldwide concern since they cannot be degraded into nontoxic forms causing extended effects in the ecosystems. The use of an Aspergillus australensis was evaluated in order to remove Cu2+ from simulated wastewater. The fungus was isolated from river sludges contaminated with heavy metals and was first evaluated for the determination of Cu2+ tolerance levels. Microscopic fluorescence analysis was carried out to determine the effect of Cu2+ presence on the viability, cellular components, polyhydroxyalkanoates production, and oxidative stress of the fungus, as a response to the stress caused by exposure to metal. In order to achieve copper removal, the A. australensis biomass was produced using batch cultures, and the mycelium was immobilized on a textile media in order to compare the copper-removal efficiency of live or dead biomass. The optimal values of pH and temperature for biomass production were established by using a surface response analysis. Live immobilized biomass was capable of removing Cu2+ from 1.54 ± 0.19 to 2.66 ± 0.26 mg of copper/ g of dry biomass, while values of 1.93 ± 0.03 to 2.36 ± 0.29 mg of copper/g of dry biomass were observed when dead biomass was used. As was expected, copper removal using biomass varied depending on the pH and temperature used.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9

Similar content being viewed by others

References

Download references

Funding

The study was funded by the Mexican Council for Science and Technology (CONACyT) through the project No. CONACyT No. 2015-01-1594, and for the scholarship to Ana Gabriela Contreras Cortés for postgraduate studies.

Author information

Authors and Affiliations

Authors

Contributions

M. Plascencia-Jatomea and F.J. Almendariz-Tapia conceived and designed the experiments. A.G. Contreras-Cortés performed the experiments. A. Gómez-Álvarez, A. Burgos-Hernández, M.O. Cortez-Rocha, E.C. Rosas Burgos, F. Rodríguez-Félix, and M.Á. Quevedo-López analyzed the data and contributed with materials and analysis tools.

Corresponding authors

Correspondence to Francisco Javier Almendariz-Tapia or Maribel Plascencia-Jatomea.

Ethics declarations

Conflict of interest

The authors declare that they have no conflict of interest.

Additional information

Responsible editor: Tito Roberto Cadaval Jr

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Contreras-Cortés, A.G., Almendariz-Tapia, F.J., Cortez-Rocha, M.O. et al. Biosorption of copper by immobilized biomass of Aspergillus australensis. Effect of metal on the viability, cellular components, polyhydroxyalkanoates production, and oxidative stress. Environ Sci Pollut Res 27, 28545–28560 (2020). https://doi.org/10.1007/s11356-020-07747-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11356-020-07747-y

Keywords

Navigation