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Assessment of Metal Accumulation by Arthrospira platensis and Its Adaptation to Iterative Action of Nickel Mono- and Polymetallic Synthetic Effluents

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dc.contributor.author CEPOI, Liliana
dc.contributor.author ZINICOVSCAIA, Inga
dc.contributor.author RUDI, Ludmila
dc.contributor.author CHIRIAC, Tatiana
dc.contributor.author DJUR, Svetlana
dc.contributor.author YUSHIN, Nikita
dc.contributor.author GROZDOV, Dmitrii
dc.date.accessioned 2024-01-24T11:30:02Z
dc.date.available 2024-01-24T11:30:02Z
dc.date.issued 2022
dc.identifier.citation CEPOI, Liliana et al. Assessment of Metal Accumulation by Arthrospira platensis and Its Adaptation to Iterative Action of Nickel Mono- and Polymetallic Synthetic Effluents. In: Microorganisms, 2022, vol. 10, 1041. ISSN 2076-2607. en_US
dc.identifier.issn 2076-2607
dc.identifier.uri http://repository.utm.md/handle/5014/26006
dc.description.abstract Cyanobacteria-mediated wastewater remediation is an economical, efficient, and ecofriendly technology. The present work deals with the bioaccumulation performance of Arthrospira platensis (Spirulina) grown for four cycles in a medium containing nickel mono- and polymetallic synthetic effluents. The metal uptake by spirulina biomass was evaluated using neutron activation analysis. The effects of effluents on biomass production, protein, and phycobiliprotein content were assessed. Metal accumulation in the biomass depended on the effluent composition and metal ion concentrations. Nickel accumulation in the biomass was directly proportional to its concentration in effluents, and maximum uptake (1310 mg/kg) was attained in the Ni/Cr/Fe system. In the same system, biomass accumulated 110 times more chromium and 4.7 times more iron than control. The highest accumulation of copper (2870 mg/kg) was achieved in the Ni/Cu/Zn/Mo system and zinc (1860 mg/kg)—in the Ni/Cu/Zn/Sr system. In biomass grown in the media loaded with nickel and also chromium, iron, copper, strontium, zinc, and molybdenum, a decrease in productivity (on average by 10%) during the first cycle of cultivation and moderate reduction of protein content (by 15–27%) was observed. The presence of metals in the cultivation media inhibited phycobiliprotein synthesis, especially of phycocyanin, and promoted the synthesis of allophycocyanin. The maximum reduction of phycocyanin content was 77%, and the increase of allophycocyanin content—by 45%. Arthrospira platensis may be deemed as bioremediation of nickelpolluted wastewaters of complex composition. en_US
dc.language.iso en en_US
dc.publisher MDPI (Basel, Switzerland) en_US
dc.relation.ispartofseries Microorganisms;2022, Vol. 10
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject Arthrospira platensis en_US
dc.subject biochemical analysis en_US
dc.subject proteins en_US
dc.subject nickel en_US
dc.subject neutron activation analysis en_US
dc.title Assessment of Metal Accumulation by Arthrospira platensis and Its Adaptation to Iterative Action of Nickel Mono- and Polymetallic Synthetic Effluents en_US
dc.type Article en_US


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