Cultivation of Microalgae and Cyanobacteria: Effect of Operating Conditions on Growth and Biomass Composition.

ABSTRACT: The purpose of this work is to define optimal growth conditions to maximise biomass for batch culture of the cyanobacterium Arthrospira maxima and the microalgae Chlorella vulgaris, Isochrysis galbana and Nannochloropsis gaditana. Thus, we study the effect of three variables on cell growth: i.e., inoculum:culture medium volume ratio (5:45, 10:40, 15:35 and 20:30 mL:mL), light:dark photoperiod (8:16, 12:12 and 16:8 h) and type of culture medium, including both synthetic media (Guillard's F/2 and Walne's) and wastewaters. The results showed that the initial inoculum:culture medium volume ratio, within the range 5:45 to 20:30, did not affect the amount of biomass at the end of the growth (14 days), whereas high (18 h) or low (6 h) number of hours of daily light was important for cell growth.

SUBMITTER: Sanchez-Bayo A 

PROVIDER: S-EPMC7356364 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature