THE INFLUENCE OF TEMPERATURE REGIME AND SPECTRALCOMPOSITION OF LIGHT ON THE GROWTH OF BIOMASSOF THE CYANOBACTERIUM CYANOBACTERIUM SP. B-1200

Cyanobacteria are a promising source of biologically active compounds of various types and are of great interest for their use in biotechnological processes to obtain complexes or individual bioactive substances with different orientations. Selecting optimal cultivation conditions for cyanobacteria will contribute to the rapid accumulation of bacterial biomass and maximize the yield of biologically active substances. This study analyzes the influence of temperature and light spectral composition on the growth of the cyanobacterium Cyanobacterium sp. IPPAS B-1200 under stationary conditions. The strain was cultivated under different temperatures and light conditions, with regular optical density measurements to monitor biomass growth. A detailed analysis of the growth dynamics allowed the characterization of various phases of cyanobacteria development, including lag phase, exponential phase, slowing phase, and stationary phase. The results indicate that the duration of these phases varied depending on the cultivation conditions. The data presented in this study can be used to optimize the cultivation process and enhance the biomass productivity of Cyanobacterium sp. IPPAS B-1200 in further research and industrial production. The findings related to the influence of light spectral composition are particularly valuable, as this parameter is often insufficiently studied when cultivating microalgae.