دورية أكاديمية
أعرض في EDS

Iron bioleaching and polymers accumulation by an extreme acidophilic bacterium.

التفاصيل البيبلوغرافية
العنوان: Iron bioleaching and polymers accumulation by an extreme acidophilic bacterium.
المؤلفون: Marchetti A; Department of Biotechnology and Biosciences, State University of Milano-Bicocca, Milano, Italy., Kupka D; Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, Kosice, 040 01, Slovakia., Senatore VG; Department of Biotechnology and Biosciences, State University of Milano-Bicocca, Milano, Italy., Bártová Z; Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, Kosice, 040 01, Slovakia., Branduardi P; Department of Biotechnology and Biosciences, State University of Milano-Bicocca, Milano, Italy., Hagarová L; Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, Kosice, 040 01, Slovakia., Hredzák S; Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, Kosice, 040 01, Slovakia., Lotti M; Department of Biotechnology and Biosciences, State University of Milano-Bicocca, Milano, Italy. marina.lotti@unimib.it.
المصدر: Archives of microbiology [Arch Microbiol] 2024 May 22; Vol. 206 (6), pp. 275. Date of Electronic Publication: 2024 May 22.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Springer-Verlag Country of Publication: Germany NLM ID: 0410427 Publication Model: Electronic Cited Medium: Internet ISSN: 1432-072X (Electronic) Linking ISSN: 03028933 NLM ISO Abbreviation: Arch Microbiol Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Berlin, New York, Springer-Verlag.
مواضيع طبية MeSH: Iron*/metabolism , Acidiphilium*/metabolism , Acidiphilium*/growth & development , Oxidation-Reduction*, Hydroxybutyrates/metabolism ; Polyesters/metabolism ; Polymers/metabolism ; Culture Media/chemistry ; Biomass ; Polyhydroxybutyrates
مستخلص: In many European regions, both local metallic and non-metallic raw materials are poorly exploited due to their low quality and the lack of technologies to increase their economic value. In this context, the development of low cost and eco-friendly approaches, such as bioleaching of metal impurities, is crucial. The acidophilic strain Acidiphilium sp. SJH reduces Fe(III) to Fe(II) by coupling the oxidation of an organic substrate to the reduction of Fe(III) and can therefore be applied in the bioleaching of iron impurities from non-metallic raw materials. In this work, the physiology of Acidiphilium sp. SJH and the reduction of iron impurities from quartz sand and its derivatives have been studied during growth on media supplemented with various carbon sources and under different oxygenation conditions, highlighting that cell physiology and iron reduction are tightly coupled. Although the organism is known to be aerobic, maximum bioleaching performance was obtained by cultures cultivated until the exponential phase of growth under oxygen limitation. Among carbon sources, glucose has been shown to support faster biomass growth, while galactose allowed highest bioleaching. Moreover, Acidiphilium sp. SJH cells can synthesise and accumulate Poly-β-hydroxybutyrate (PHB) during the process, a polymer with relevant application in biotechnology. In summary, this work gives an insight into the physiology of Acidiphilium sp. SJH, able to use different carbon sources and to synthesise a technologically relevant polymer (PHB), while removing metals from sand without the need to introduce modifications in the process set up.
(© 2024. The Author(s).)
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فهرسة مساهمة: Keywords: Acidiphilium; Acidophiles; Bioleaching; Extremophiles; Poly-β-hydroxybutyrate (PHB)
المشرفين على المادة: 0 (poly-beta-hydroxybutyrate)
تواريخ الأحداث: Date Created: 20240522 Date Completed: 20240522 Latest Revision: 20240619
رمز التحديث: 20240619
مُعرف محوري في PubMed: PMC11111502
DOI: 10.1007/s00203-024-04005-4
PMID: 38775940
قاعدة البيانات: MEDLINE
الوصف
تدمد:1432-072X
DOI:10.1007/s00203-024-04005-4