Biodegradable surfactants based on spirulina oil were obtained by transesterification. The optimal parameters of the methanolysis reaction of spirulina oil were determined, the product yield in this case is ~ 82%. The concentration of the catalyst was varied within 6; 10 wt.% With respect to spirulina oil, the ratio of the starting components varied within spirulina oil: СН3ОН = 1: 0.3; 1.5 (50 g: 16.64-83.2 g, respectively ), the reaction time was varied from 8 to 20 hours. The reaction temperature was maintained at 73 °C during the whole time of the synthesis. The resulting product was identified by IR spectroscopy. References
 Minyuk G.S., Drobetskaya I.V., Chubchikova I.N. Unicellular algae as a renewable biological resource // Marine ecological journal. 2008. Vol. 7, N 2. P. 5-23.
 Minyuk G.S., Trenkenshu R.P. Spirulina Krymskaya-source of iodine // Applied Algology. 1999. N 1-3. P. 25-28.
 Chernova N.I., Korobkova T.P., Kiseleva S.V. Spirulina Microalgae as an object of biotechnology // Biology. Moscow State University, 2006. N 13. P. 1-7.
 Gordon A., Ford R. Satellite chemist. M.: World, 1976. 541 p.
 Organicum. Workshop on organic chemistry. M.: Mir, 1979. P. 74-78.
 Shikhaliev H.S., Krysin M.Yu., Potapov A.Yu., Zorin A.V., Stolpakovskaya N.V. Heterogeneous system of potassium hydroxide/activated carbon as a catalyst in the reaction of transesterification of sunflower oil triglycerides with methanol // Condensed matter and interfacial boundaries. RF. BROMINE. 2013. Vol. 15, N 4. P. 470-472.
 The concise chemical encyclopedia. M.: Soviet encyclopedia, 1964. Vol. 3. P. 1073.
 Almyasheva O.V., Gusarov V.V., Lebedev O.A. Surface phenomena. SPb.: Ed. "LETI", 2004. 26 p.
 Russian patent No. 2263660. Method of transesterification of fat / or fat of biological origin by alcoholism / P. Siegfried; publ. 11.07.2012.
 The concise chemical encyclopedia. M.: Soviet encyclopedia, 1964. Vol. 1. P. 129; 1965. Vol. 4. P. 958.