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Bioremediation of h...
Bioremediation of hexavalent chromium (VI) by a soil-borne bacterium, Enterobacter cloacae B2-DHA
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- Rahman, Aminur, 1984- (author)
- Högskolan i Skövde,Institutionen för biovetenskap,Forskningscentrum för Systembiologi,Örebro Universtitet,Physiology, Pharmacology and Toxicology
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- Nahar, Noor, 1977- (author)
- Högskolan i Skövde,Institutionen för biovetenskap,Forskningscentrum för Systembiologi,Physiology, Pharmacology and Toxicology,Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Tathawade, Pune, India
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- Nawani, Neelu N. (author)
- Dr. D. Y. Patil Biotechnology and Bioinformatics Institute, Tathawade, Pune, India
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- Jass, Jana, 1963- (author)
- Örebro universitet,Institutionen för naturvetenskap och teknik,The Life Science Center, School of Science and Technology, Örebro University, Örebro, Sweden
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- Hossain, Khaled (author)
- Department of Biochemistry & Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
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- Saud, Zahangir Alam (author)
- Department of Biochemistry & Molecular Biology, University of Rajshahi, Rajshahi, Bangladesh
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- Saha, Ananda K. (author)
- Department of Zoology, University of Rajshahi, Rajshahi, Bangladesh
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- Ghosh, Sibdas (author)
- School of Arts and Science, Iona College, New Rochelle, New York, USA
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- Olsson, Björn (author)
- Högskolan i Skövde,Institutionen för biovetenskap,Forskningscentrum för Systembiologi,Bioinformatik
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- Mandal, Abul (author)
- Högskolan i Skövde,Institutionen för biovetenskap,Forskningscentrum för Systembiologi,Physiology, Pharmacology and Toxicology
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(creator_code:org_t)
- 2015-07-20
- 2015
- English.
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In: Journal of Environmental Science and Health. Part A. - : Informa UK Limited. - 1093-4529 .- 1532-4117. ; 50:11, s. 1136-1147
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Abstract
Subject headings
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- Chromium and chromium containing compounds are discharged into the nature as waste from anthropogenic activities, such as industries, agriculture, forest farming, mining and metallurgy. Continued disposal of these compounds to the environment leads to development of various lethal diseases in both humans and animals. In this paper, we report a soil borne bacterium, B2-DHA that can be used as a vehicle to effectively remove chromium from the contaminated sources. B2-DHA is resistant to chromium with a MIC value of 1000 mu g mL(-1) potassium chromate. The bacterium has been identified as a Gram negative, Enterobacter cloacae based on biochemical characteristics and 16S rRNA gene analysis. TOF-SIMS and ICP-MS analyses confirmed intracellular accumulation of chromium and thus its removal from the contaminated liquid medium. Chromium accumulation in cells was 320 mu g/g of cells dry biomass after 120-h exposure, and thus it reduced the chromium concentration in the liquid medium by as much as 81%. Environmental scanning electron micrograph revealed the effect of metals on cellular morphology of the isolates. Altogether, our results indicate that B2-DHA has the potential to reduce chromium significantly to safe levels from the contaminated environments and suggest the potential use of this bacterium in reducing human exposure to chromium, hence avoiding poisoning.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Keyword
- Bioremediation
- chromium
- Enterobacter cloacae
- human health
- soil borne bacterium
- tannery effluents
- Enviromental Science
- Miljövetenskap
- Bioinformatik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Rahman, Aminur, ...
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Nahar, Noor, 197 ...
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Nawani, Neelu N.
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Jass, Jana, 1963 ...
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Hossain, Khaled
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Saud, Zahangir A ...
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show more...
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Saha, Ananda K.
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Ghosh, Sibdas
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Olsson, Björn
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Mandal, Abul
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Earth and Relate ...
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and Environmental Sc ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Biological Scien ...
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and Microbiology
- Articles in the publication
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Journal of Envir ...
- By the university
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Örebro University
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University of Skövde