Mycoremediation
Potential of Aspergillus niger against Heavy Metals of Amanishah Nallah, Jaipur
Singh Pooja, Qidwai Tabish and Saluja Rohit
Res. J. Biotech.; Vol. 20(10); 250-254;
doi: https://doi.org/10.25303/2010rjbt2500254; (2025)
Abstract
Developing countries face pollution from industrial waters, which are not treated
before release. Mycoremediation, a practical and economical solution, can be effective
using filamentous fungal species like Aspergillus sp., secreting organic acids.
The main objective of the study is to study concentration of heavy metal and to
identify filamentous fungal species which have ability to detoxify the HMs. The
location of the sampling area is: Amanishah ka Nalah in Sanganer City which was
earlier known as Dravaywati river because vegetables were cultivated in the field
of industrial and sewerage waste water. Grab sampling methodology adopted to take
samples from the different locations of flow of nallah i.e. residential, non-residential
and industrial area to analysed heavy metals.
The atomic absorption spectroscopy (AAS) shows that waste water contains cadmium
1.0 to 1.20, copper 1.0 to 1.20 and nickel 0.94 to 1.21 milligrams/liter. Fungal
sp. Were isolated from freshly collected soil on microbial culture media (PDA).
Microbial identification was done by using PCR and sequencing to identified fungal
sp. i.e. Aspergillus niger. It shows a decrease in the toxicity of mainly two heavy
metals Ni and Cu whereas Cd is able to inhibit the growth of Aspergillus niger to
some extent. The analysis underscores the significance of A. niger of heavy metals
remediation, emphasizing requirement for further analysis and technical improvements
to fully utilize their metabolites.
