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Bioreduction of Cr(VI) by alkaliphilic Bacillus subtilis and interaction of the membrane groups
Open accessAbstract
Detoxification of Cr(VI) under alkaline pH requires attention due to the alkaline nature of many effluents. An alkaliphilic gram-positive Bacillus subtilis isolated from tannery effluent contaminated soil was found to grow and reduce Cr(VI) up to 100% at an alkaline pH 9. Decrease in pH to acidic range with growth of the bacterium signified the role played by metabolites (organic acids) in chromium resistance and reduction mechanism. The XPS and FT-IR spectra confirmed the reduction of Cr(VI) by bacteria into +3 oxidation state. Chromate reductase assay indicated that the reduction was mediated by constitutive membrane bound enzymes. The kinetics of Cr(VI) reduction activity derived using the monod equation proved (K s = 0.00032) high affinity of the organism to the metal. This study thus helped to localize the reduction activity at subcellular level in a chromium resistant alkaliphilic Bacillus sp.
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Wang, P.-C., Mori, T., Komori, K., Sasatsu, M., Toda, K., & Ohtake, H. (1989) · Applied and Environmental Microbiology · doi:10.1128/aem.55.7.1665-1669.1989 · Cited by 323
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GracePavithra, K., Jaikumar, V., Kumar, P. S., & SundarRajan, P. (2019) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2019.04.117 · Cited by 361
Shaw, D. R., & Dussan, J. (2015) · Water, Air, & Soil Pollution · doi:10.1007/s11270-015-2385-7 · Cited by 21
Metadata
- Authors
- Mary Mangaiyarkarasi, M. S., Vincent, S., Janarthanan, S., Subba Rao, T., & Tata, B. V. R.
- Venue
- Saudi Journal of Biological Sciences
- Publisher
- Elsevier BV
- Published
- 2011-04
- Volume
- 18
- Issue
- 2
- Pages
- 157-167
- ISSN
- 1319-562X (ISSN-L)
- OpenAlex
- W2039395444
- Cited by
- 181
- References
- 1
- FWCI
- 3.84
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- CoChat. (2026). Citation check: Bioreduction of Cr(VI) by alkaliphilic Bacillus subtilis and interaction of the membrane groups. https://app.cochat.ai/papers/10.1016/j.sjbs.2010.12.003
- The paper
- Mary Mangaiyarkarasi, M. S., Vincent, S., Janarthanan, S., Subba Rao, T., & Tata, B. V. R. (2011). Bioreduction of Cr(VI) by alkaliphilic Bacillus subtilis and interaction of the membrane groups. Saudi Journal of Biological Sciences. https://doi.org/10.1016/j.sjbs.2010.12.003
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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