Determination of Bio-Sorption Potential of Microorganisms against Heavy Metal Lead

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  • Assistant Professor, Department of Microbiology, M.S. Ramaiah College of Arts, Science and Commerce, Bangalore ,IN
  • Assistant Professor, Department of Food Science and Technology, GITAM School of Sciences, Bangalore ,IN
  • M.Sc. Student, Department of Microbiology, M.S. Ramaiah College of Arts, Science and Commerce, Bangalore ,IN
  • M.Sc. Student, Department of Microbiology, M.S. Ramaiah College of Arts, Science and Commerce, Bangalore ,IN
  • M.Sc. Student, Department of Microbiology, M.S. Ramaiah College of Arts, Science and Commerce, Bangalore ,IN
  • M.Sc. Student, Department of Microbiology, M.S. Ramaiah College of Arts, Science and Commerce, Bangalore ,IN
  • Project Scientist, Centre for Cellular and Molecular Biology (CCMB), Hyderabad ,IN
  • Associate Professor, Department of Biotechnology, M.S. Ramaiah Institute of Technology, Bangalore ,IN



Maximum Tolerable Concentration, Bio sorption, Bioremediation, Heavy Metal Tolerance


Environmental pollution is currently a global problem. The presence of heavy metals in lake water released by industries causes serious danger to the environment and to many other life forms which are in frequent contact with it. The objective of the study was to isolate organisms and check for their bio-sorption potential towards heavy metal lead. Among the isolates, bacteria – Bacillus sp, Pseudomonas sp and fungal strains – Aspergillus niger, Aspergillus flavus, Penicillium sp, and Cladosporium sp were found to be resistant to lead. For bacteria, Maximum Tolerable Concentration (MTC) was performed up to 500ppm of lead concentration and checked colorimetrically. All the fungal isolates showed growth in all concentrations of lead but there was decrease in growth as the concentration increased. The bio-sorption potential was investigated by atomic absorption spectrophotometer (AAS), FTIR and Scanning Electron Microscope (SEM). The results of AAS showed that Penicillium sp had higher bio sorption ability of 26.6% whereas Cladosporium sp showed minimal adsorption of 7.2%. SEM micrographs revealed localization of lead on the mycelial mat of the organisms. These results suggested that Penicillium sp. has potential application in the bioremediation of lead contamination in water.


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How to Cite

Shanbhag, S. S., Nirmala Devi D., Anuradha N., Chandana D., Gaikwad, S. M., Nithya Shree S., Vaidya, S., & Naidu, A. (2023). Determination of Bio-Sorption Potential of Microorganisms against Heavy Metal Lead. Journal of Mines, Metals and Fuels, 71(3), 378–386.






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