Bioleaching of Sulfide Minerals by Leptospirillum ferriphilum CC from Polymetallic Mine (Armenia)

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dc.contributor.authorVardanyan, Arevik
dc.contributor.authorKhachatryan, Anna
dc.contributor.authorCastro Ruiz, Laura
dc.contributor.authorWillscher, Sabine
dc.contributor.authorGaydardzhiev, Stoyan
dc.contributor.authorZhang, Ruiyong
dc.contributor.authorVardanyan, Narine
dc.date.accessioned2023-06-22T12:59:30Z
dc.date.available2023-06-22T12:59:30Z
dc.date.issued2023
dc.description.abstractA strain of Leptospirillum sp. CC previously isolated from Akhtala polymetallic ore (Armenia) was studied. The main morphological and physiological characteristics of CC were revealed. The optimal growth temperature was 40 ◦C and optimal pH 1.5. A phylogenetic analysis based on 16S rRNA gene sequences (GenBank ID OM272948) showed that isolate CC was clustered with L. ferriphilum and possessed 99.8% sequence similarity with the strain L. ferriphilum OL12-2 (KF356024). The molar fraction of DNA (G + C) of the isolate was 58.5%. Bioleaching experiment indicates that L. ferriphilum CC can oxidize Fe(II) efficiently, and after 17 days, 44.1% of copper and 91.4% of iron are extracted from chalcopyrite and pyrite, respectively. The efficiency of L. ferriphilum CC in pyrite oxidation increases 1.7 times when co-cultivated with At. ferrooxidans ZnC. However, the highest activity in pyrite oxidation shows the association of L.ferriphilum CC with heterotrophic Acidocella sp. RBA bacteria. It was shown that bioleaching of copper and iron from chalcopyrite by association of L. ferriphilum CC, At. ferrooxidans ZnC, and At. albertensis SO-2 in comparison with pure culture L. ferriphilum CC for 21 days increased about 1.2 and 1.4–1.6 times, respectively.en
dc.description.departmentDepto. de Ingeniería Química y de Materiales
dc.description.facultyFac. de Ciencias Químicas
dc.description.refereedTRUE
dc.description.sponsorshipScience Committee of Republic of Armenia
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/77938
dc.identifier.citationVardanyan, A.; Khachatryan, A.; Castro, L.; Willscher, S.; Gaydardzhiev, S.; Zhang, R.; Vardanyan, N. Bioleaching of Sulfide Minerals by Leptospirillum ferriphilum CC from Polymetallic Mine (Armenia). Minerals 2023, 13, 243
dc.identifier.doi10.3390/min13020243
dc.identifier.issn2075-163X
dc.identifier.issn2075-163X
dc.identifier.officialurlhttps://doi.org/10.3390/min13020243
dc.identifier.urihttps://hdl.handle.net/20.500.14352/73395
dc.journal.titleMinerals
dc.language.isoeng
dc.publisherMDPI
dc.relation.projectIDResearch project № 22rl-031
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International
dc.rights.accessRightsopen access
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.cdu66.0
dc.subject.keywordLeptospirillum ferriphilum
dc.subject.keywordIsolation
dc.subject.keywordCharacterization
dc.subject.keywordPhylogenetic analysis
dc.subject.keywordBioleaching
dc.subject.ucmIngeniería química
dc.subject.ucmMateriales
dc.subject.unesco3303 Ingeniería y Tecnología Químicas
dc.subject.unesco3312 Tecnología de Materiales
dc.titleBioleaching of Sulfide Minerals by Leptospirillum ferriphilum CC from Polymetallic Mine (Armenia)
dc.typejournal article
dc.volume.number13
dspace.entity.typePublication
relation.isAuthorOfPublication93b5b649-29f0-4442-b669-6ee59981ae2b
relation.isAuthorOfPublication.latestForDiscovery93b5b649-29f0-4442-b669-6ee59981ae2b
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