Investigations of Hg(II) and Pb(II) tolerance, removal and bioaccumulation and their effects on antioxidant enzymes on thermophilic Exiguobacterium profundum

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dc.contributor.authorKılınç, Ersin
dc.contributor.authorAkkoyun, Mahire Bayramoğlu
dc.contributor.authorÖzdemir, Sadin
dc.date.accessioned2021-10-30T14:52:13Z
dc.date.available2021-10-30T14:52:13Z
dc.date.issued2020en_US
dc.departmentMAÜ, Meslek Yüksekokulları, Sağlık Hizmetleri Meslek Yüksekokulu, Tıbbi Hizmetler ve Teknikler Bölümüen_US
dc.description.abstractHg(II) and Pb(II) tolerance, removal, bioaccumulation and effects on antioxidant enzymes of thermophilic Exiguobacterium profundum were investigated. The results indicated that Hg(II) was more toxic than Pb(II) to E. profundum. E. profundum was also more tolerant in solid medium than in liquid medium for Pb(II) and Hg(II). The bacterial growth was not significantly influenced at 1.0 and 2.5 mg/L Pb(II) and Hg(II) for 24 h. The highest Hg(II) and Pb(II) bioaccumulation amounts were determined as 37.56 and 54.35 mg metal/dried bacteria, respectively. Bioaccumulation capacities of the cell membrane of E. profundum for Hg(II) and Pb(II) were determined. The different concentrations of Pb(II) and Hg(II) enhanced the SOD and CAT enzymes. In addition, variations of the surface macrostructure and the functionality of E. profundum after the interaction with Hg(II) and Pb(II) were investigated by the scanning electron microscope (SEM) and the Fourier transform infrared spectroscopy (FT-IR), respectively. This investigation obviously showed that thermophilic E. profundum can also be applied for removal and recovery of toxic metals from industrial wastewater. Clearly, a further investigation should be utilized by thermophilic microorganisms. According to antioxidant enyzme activities, E. profundum can be also used as a bioindicator for the detection of toxic metal pollution in natural water samples.en_US
dc.description.sponsorshipThis academic work was linguistically supported by the Mersin Technology Transfer Office Academic Writing Center of Mersin University.en_US
dc.identifier.citationÖzdemir, S.; Food Processing Programme, Technical Science Vocational School, Mersin University, Mersin, Yenisehir, Turkey.en_US
dc.identifier.doi10.1080/10807039.2018.1562882en_US
dc.identifier.endpage1253en_US
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-85061067304en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1234en_US
dc.identifier.urihttps://doi.org/10.1080/10807039.2018.1562882
dc.identifier.urihttps://hdl.handle.net/20.500.12514/2918
dc.identifier.volume26en_US
dc.identifier.wosWOS:000538171300007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherHuman and Ecological Risk Assessmenten_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectToxic metalen_US
dc.subjectTolerance
dc.subjectBioaccumulation
dc.subjectAntioxidant activity
dc.subjectExiguobacterium profundum
dc.titleInvestigations of Hg(II) and Pb(II) tolerance, removal and bioaccumulation and their effects on antioxidant enzymes on thermophilic Exiguobacterium profundumen_US
dc.typeArticleen_US

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