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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Gazem, Mufedah A. H. Nazareth, Sarita |
| Description | Country affiliation: India Author Affiliation: Gazem MA ( Department of Microbiology, Goa University, Taleigao Plateau, 403206, Goa, India.) |
| Abstract | The isolate Aspergillus versicolor was obtained from an estuary, which is exposed to metal contamination. It was found to have a good metal tolerance and sorption capacity. Further studies revealed that the rate of metal removal from solution is very rapid in the first 5–10 min, and is favoured by a pH of 6.0. The biosorption data obtained was explained by the Freundlich adsorption isotherm model and followed a pseudo-second order kinetics reaction. The fungus showed a higher accumulation of fatty acids when grown in presence of metals as compared to the mycelium grown in absence of the metal; there was also an increase in the saturation index of fatty acids in presence of $Cu^{2+}$ which serves as a protective mechanism for the fungus. Fourier Transform Infrared, scanning electron microscopy and EDAX analysis indicated that metal removal from solution by A. versicolor occurred by a passive adsorption to the fungal cell surface, involving an ion exchange mechanism. |
| File Format | HTM / HTML |
| ISSN | 09593993 |
| Issue Number | 7 |
| Volume Number | 28 |
| e-ISSN | 15730972 |
| Journal | World Journal of Microbiology and Biotechnology |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2012-07-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Microbiology Microscopy, Electron, Scanning Fatty Acids Metals Metabolism Spectroscopy, Fourier Transform Infrared Journal Article Discipline Biotechnology Aspergillus Ultrastructure Lead Kinetics Copper |
| Content Type | Text |
| Resource Type | Article |
| Subject | Physiology Medicine Applied Microbiology and Biotechnology Biotechnology |
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