Identification and Characterization of Peruvian Native Bacterial Strains as Bioremediation of Hg-Polluted Water and Soils Due to Artisanal and Small-Scale Gold Mining in the Secocha Annex, Arequipa

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dc.contributor.authorFernandez-F, F.
dc.contributor.authorLopez-C, P.
dc.contributor.authorFebres-Molina, C.
dc.contributor.authorGamero-Begazo, P.
dc.contributor.authorGómez, B.
dc.contributor.authorBernabe-Ortiz, J.
dc.contributor.authorCáceres-Huambo, A.
dc.contributor.authorAguilar-Pineda, J.
dc.date.accessioned2022-06-22T14:53:26Z
dc.date.available2022-06-22T14:53:26Z
dc.date.issued2022-02
dc.descriptionIndexación: Scopus.es
dc.description.abstractThe water and soils pollution due to mercury emissions from mining industries represents a serious environmental problem and continuous risk to human health. Although many strategies have been designed for the recovery or elimination of this metal from environmental sources, microbial bioremediation has proven to be the most effective and environmentally friendly strategy and thus control heavy metal contamination. The main objective of this work, using native bacterial strains obtained from contaminated soils of the Peruvian region of Secocha, was to identify which of these strains would have growth capacity on mercury substrates to evaluate their adsorption behavior and mercury removal capacity. Through a DNA analysis (99.78% similarity) and atomic absorption spectrometry, the Gram-positive bacterium Zhihengliuella alba sp. T2.2 was identified as the strain with the highest mercury removal capacity from culture solutions with an initial mercury concentration of 162 mg·L−1 . The removal capacity reached values close to 39.5% in a period of incubation time of 45 days, with maximum elimination efficiency in the first 48 h. These results are encouraging and show that this native strain may be the key to the bioremediation of water and soils contaminated with mercury.es
dc.description.urihttps://www.mdpi.com/2071-1050/14/5/2669
dc.identifier.citationSustainability (Switzerland), Volume 14, Issue 5, March-1 2022, Article number 2669es
dc.identifier.doi10.3390/su14052669
dc.identifier.issn2071-1050
dc.identifier.urihttps://repositorio.unab.cl/xmlui/handle/ria/22933
dc.language.isoenes
dc.publisherMDPIes
dc.rights.licenseAttribution 4.0 International (CC BY 4.0)
dc.rights.urihttps://www.mdpi.com/openaccess
dc.subjectBioremediationes
dc.subjectMercury removales
dc.subjectNative bacterial strainses
dc.subjectZhihengliuella albaes
dc.subjectBioremediationes
dc.subjectOrganomercury Compoundses
dc.subjectAlkylmercury Lyasees
dc.titleIdentification and Characterization of Peruvian Native Bacterial Strains as Bioremediation of Hg-Polluted Water and Soils Due to Artisanal and Small-Scale Gold Mining in the Secocha Annex, Arequipaes
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