10.25750/1995-4301-2017-3-025-033N. A. KudryashovL. I. DomrachevaE.O. VelikoredchaninaPossible ways to intensify mass cultivation of cyanobacteriaTheoretical and Applied Ecology2017cyanobacteriailluminationmacroelementsmicroelementsagar-agarcarbon dioxideruDataset1The example of cultivation of two species of cyanobacteria (CB) Nostoc paludosum and Fischerella muscicola
showed that manipulating the level of illumination and the composition of the nutrient medium can cause a significant
increase in the yield of cyanobacterial biomass. Transition to cultivation from a luminostate with illumination of 1000
lux to cultivation in a bioreactor with illumination of 4000 lux raises reproduction rate of the CB by 1.8 times for N.
paludosum and by 3.5 times for F. muscicola. At the same time, in the bioreactor of the author’s design, lighting is performed
by different spectra with the help of red, blue, green and white LED strips. The regime of cultivation of these CB
species in the modified Gromov No. 6 nutrient medium without nitrogen also allows a significant increase in the yield
of cyanobacterial biomass. Among the methods based on the increase in the content of macro- and microelements, the
concentration of agar-agar and the saturation of the medium of carbon dioxide in the form of dry ice, the most effective
was reception of additional supply of photosynthetic CB with carbon. Adding 25 g of carbon dioxide in the form of dry
ice to 1 L of nutrient medium leads to an increase in their reproduction rates by almost 4 times. Of the two CB tested
cultures, F. muscicola was the most responsive to the level of illumination, and the CB reacted differently to changes in
the composition of the nutrient medium.