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Characterization of a molybdenum-reducing Bacillus sp strain khayat with the ability to grow on SDS and diesel

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dc.contributor.authorKhayat, MEen_US
dc.contributor.authorAbd Rahman, MFen_US
dc.contributor.authorShukor, MSen_US
dc.contributor.authorAhmad, SAen_US
dc.contributor.authorShamaan, NAen_US
dc.contributor.authorShukor, MYen_US
dc.date.accessioned2024-05-29T03:28:06Z
dc.date.available2024-05-29T03:28:06Z
dc.date.issued2016
dc.description.abstractMolybdenum and heavy metals are toxicants that are needed to be removed from the environment as they are non-biodegradable and pose a serious threat to the ecology. A previously isolated keratin-degrading Bacillus sp. strain khayat was shown to be able to reduce molybdenum (sodium molybdate) to molybdenum blue (Mo-blue). Reduction occurred optimally at the pHs of between 5.8 and 6.8 and temperatures of between 25 and 34 A degrees C. Glucose was the best electron donor for supporting molybdate reduction followed by sucrose, fructose, glycogen, lactose, meso-inositol and glycerol in descending order. Other requirements include a phosphate concentration between 5.0 and 7.5 mM and a molybdate concentration of between 10 and 20 mM. The absorption spectrum of the Mo-blue produced was similar to previous Mo-reducing bacterium, and closely resembles a reduced phosphomolybdate. Molybdenum reduction was inhibited by Hg (ii), Ag (i), Cu (ii), As (v) and Pb (ii) at 84.7, 78.9, 53.5, 36.8 and 27.7 %, respectively. Analysis using phylogenetic analysis resulted in a tentative identification of the bacterium as Bacillus sp. strain khayat. The bacterium was unable utilize any of the xenobiotics as sources of electron donor for reduction but the bacterium was able to grow on diesel and SDS. The ability of this bacterium to detoxify several toxicants makes this bacterium an important tool for bioremediation of multiple toxicants.
dc.identifier.doi10.1007/s12210-016-0519-5
dc.identifier.epage556
dc.identifier.isbn1720-0776
dc.identifier.issn2037-4631
dc.identifier.issue3
dc.identifier.scopusWOS:000381601300014
dc.identifier.spage547
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/12261
dc.identifier.volume27
dc.languageEnglish
dc.language.isoen_US
dc.publisherSpringer-Verlag Italia Srlen_US
dc.relation.ispartofRendiconti Lincei-Scienze Fisiche E Naturali
dc.sourceWeb Of Science (ISI)
dc.subjectMolybdenum-reducing bacteria; Molybdate; Bacillus spen_US
dc.titleCharacterization of a molybdenum-reducing Bacillus sp strain khayat with the ability to grow on SDS and diesel
dc.typeArticleen_US
dspace.entity.typePublication

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