| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Characterization and Metal Detoxification Potential of Moderately Thermophilic Bacillus cereus from Geothermal Springs of Himalaya
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| Autores: |
Ghalib,Aslam Khan
Yasin,Muhammad
Faisal,Muhammad
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| Data: |
2014-08-01
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| Ano: |
2014
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| Palavras-chave: |
Chromium
Bioremediation
Selenium
Heavy metals
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| Resumo: |
Two thermophilic Bacillus cereus strains (B. cereus-TA2 and B. cereus-TA4) used in the present study were isolated from the geothermal spring of Hunza valley, Gilgit, Pakistan. They showed the ability to withstand and grow at high temperature (85°C). Both these strains could resist multiple metals (copper, cadmium, mercury, manganese, zinc, arsenic, chromium and selenium). Strain B. cereus-TA4 reduced Cr (VI) at pH 5.0 to 9.0 but maximum reduction (83%) was observed at pH 7.0 after 48 h when initially supplied with 200 µg mL-1of K2CrO4. Lower initial concentrations such as 100 µg mL-1 supported higher reduction (90 to 95%) than that of high concentration such as 500 µg mL-1 (20 to 30%). Both the strains reduced nearly 70% of Se (IV) after 48 h of growth at pH 7.0 when initially supplied with 200 µg mL-1 of Na2SeO3. The optimum temperature for maximum Se (IV) reduction was 45°C for both the strains.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000400554
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-8913201402001
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.57 n.4 2014
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| Direitos: |
info:eu-repo/semantics/openAccess
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