Productivity and content of biologically active compounds during Spirulina platensis cultivat ion in the presence of gold nanoparticles (AuNPs)

Abstract

It was studied biological effect of AuNPs on cyanobacterium Spirulina platensis growth and established the level of biomass accumulation. According to the obtained results, the effect of gold nanoparticles on spirulina growth was positive and this effect was provided by all doses added to culture medium. Thus, spirulina productivity in the presence of applied AuNPs doses increased by 18.75-34.3% compared to non-exposed biomass. Maximum biomass productivity increase by 32.29-34.3% compared to spirulina grown in the absence of nanoparticles, was recorded for AuNPs applied in dilutions of 1:1 (Au 1:1), 1:5 (Au 1:5) and 1:20 (Au 1:20).