Arthrospira platensis as Bioremediator of Rhenium Mono- and Polymetallic Synthetic Effluents
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ZINICOVSCAIA, Inga, CEPOI, Liliana, RUDI, Ludmila, CHIRIAC, Tatiana, YUSHIN , Nikita, GROZDOV, Dmitrii. Arthrospira platensis as Bioremediator of Rhenium Mono- and Polymetallic Synthetic Effluents. In: Microorganisms, 2022, vol. 10, pp. 1-13. ISSN -. DOI: https://doi.org/10.3390/microorganisms10112109
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Microorganisms
Volumul 10 / 2022 / ISSN - /ISSNe 2076-2607

Arthrospira platensis as Bioremediator of Rhenium Mono- and Polymetallic Synthetic Effluents

DOI: https://doi.org/10.3390/microorganisms10112109

Pag. 1-13

Zinicovscaia Inga123, Cepoi Liliana4, Rudi Ludmila4, Chiriac Tatiana4, Yushin Nikita1, Grozdov Dmitrii1
 
1 Joint Institute of Nuclear Research,
2 Horia Hulubei National Institute for Physics and Nuclear Engineering,
3 Institute of Chemistry,
4 Institute of Microbiology and Biotechnology
 
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Disponibil în IBN: 23 noiembrie 2022


Rezumat

Rhenium is a scarce and highly important metal for industry and technology. In the present study, the cyanobacterium Arthrospira platensis (Spirulina) was used to remove rhenium and related elements (Mo and Cu) from mono- and polymetallic synthetic effluents. Metal ions in different concentrations were added to the culture medium on the first, third, and fifth days of biomass growth, and their uptake by the biomass was traced using ICP-AES technique. The accumulation of rhenium in the biomass was dependent on the chemical composition of the effluents, and the highest uptake of 161 mg/kg was achieved in the Re-Cu system. The presence of rhenium, copper, and molybdenum affected the productivity of Spirulina biomass and its biochemical composition (proteins, carbohydrates, lipids, phycobiliproteins, the content of chlorophyll α and β-carotene). With the growth of biomass in the presence of rhenium or rhenium and molybdenum, a pronounced increase in productivity and protein content was observed. The presence of copper in systems has a negative effect on biomass productivity and biochemical composition. Arthrospira platensis may be of interest as a bioremediator of rhenium-containing effluents of various chemical compositions.

Cuvinte-cheie
Arthrospira platensis, biochemical analysis, bioremediation, copper, molybdenum, proteins, rhenium