A study of the C-phycocyanin content in S. platensis cells in two-stage luminostat was conducted. Two-stage luminostat was a cultivation system consisting of two sections arranged one behind the other. Due to the stabilization of the culture density in the first section the amount of light energy falling in the second section was same. It is shown that the C-phycocyanin content in the second section was 16 times more than in the first. In the organization semicontinious cultivation mode in the second section it is possible to stabilize the culture density at the level of about 1 g DW/l. Under such conditions, we can obtain 100 mg of biomass or 8 mg of C-phycocyanin per liter of culture per day.
the spectrum of the lamp, the transmission spectrum of culture, semicontinious cultivation mode
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