Abstract
The content of astaxanthin, including its mono- and diesters, and photosynthetic pigments, has been analyzed in cells of H. pluvialis strain IBCE-H17 under the combined prolonged action of several inducers of astaxanthin accumulation. The effective induction of the astaxanthin accumulation, mainly in the form of monoesters of fatty acids, was shown after a 20-day cultivation under high-intensity light and with the addition of 1-2 g/l of sodium acetate to the culture medium. A simultaneous decrease in the content of chlorophylls and lutein in the H. pluvialis cells was observed under these conditions. The use of sodium acetate in combination with sodium chloride did not lead to noticeable changes in the content of astaxanthin compared with the use of sodium acetate alone. The obtained data can be helpful in the biotechnological production of Haematococcus biomass enriched with economically valuable compounds. astaxanthin, Haematococcus pluvialis, pigments, sodium acetate, sodium chloride, high-intensity light. This work was supported by Grant no. Б19РМ-010 of the Belarusian Republican Foundation for Fundamental Research and Grant no. 19-54-04003 of the Russian Foundation for Basic Research.
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