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Biomass production and pigment content in Arthrospira platensis by adding AuNP(PEG) AND AgNP(PEG) at different growth phases of cultivation cycle

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dc.contributor.author RUDI, Ludmila
dc.contributor.author CHIRIAC, Tatiana
dc.contributor.author CEPOI, Liliana
dc.contributor.author MISCU, Vera
dc.contributor.author ZINICOVSCAIA, Inga
dc.contributor.author VALUTA, Ana
dc.contributor.author RUDIC, Valeriu
dc.date.accessioned 2024-01-25T07:14:10Z
dc.date.available 2024-01-25T07:14:10Z
dc.date.issued 2021
dc.identifier.citation RUDI. Ludmila, CHIRIAC. Tatiana, CEPOI, Liliana et al. Biomass production and pigment content in Arthrospira platensis by adding AuNP(PEG) AND AgNP(PEG) at different growth phases of cultivation cycle. In: Analele Universităţii din Oradea, Fascicula Biologie, 2021, tom. 28, iss. 2, pp. 143-151. e-ISSN 1844-7589. en_US
dc.identifier.issn 1844-7589
dc.identifier.uri http://repository.utm.md/handle/5014/26014
dc.description.abstract The current study aimed to investigate the influence of growth phase on the response of cyanobacterium Arthrospira platensis to the presence of Au and Ag nanoparticles stabilized with polyethylene glycol in the culture medium. Nanoparticles of gold and silver in the applied concentrations altered the accumulation of spirulina biomass, regardless of the physiological growth phase of the culture to which they were added. Changes in the content of pigments in spirulina biomass indicated the presence of harmful effects on cyanobacterial strain. Gold nanoparticles, for instance, significantly reduced the amount of phycobiliproteins in spirulina biomass, and the inhibitory effect was more pronounced when adding nanoparticles in the lag phase of the cultivation cycle. Changes in the content of chlorophyll a and β-carotene occurred by approximately the same principle, while more pronounced effects were observed under the action of gold nanoparticles. Adding nanoparticles in the exponential growth phase showed a dose-dependent inhibitory effect in the case of chlorophyll. The amount of biomass accumulated during the cultivation cycle cannot be considered a sufficient parameter when assessing the possible toxic effects of nanoparticles, and biochemical tests are necessary to detect various deviations from the normal physiological state of spirulina culture. en_US
dc.language.iso en en_US
dc.publisher Universitatea din Oradea en_US
dc.relation.ispartofseries Analele Universităţii din Oradea, Fascicula Biologie;2021, tom. 28, iss. 2
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 gold nanoparticles en_US
dc.subject silver nanoparticles en_US
dc.subject growth phases en_US
dc.subject biomass production en_US
dc.subject pigment content en_US
dc.title Biomass production and pigment content in Arthrospira platensis by adding AuNP(PEG) AND AgNP(PEG) at different growth phases of cultivation cycle en_US
dc.type Article en_US


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