Characterization of Omega-3 and Omega-6 Fatty Acid Accumulation in Chlorococcum novae-angliae Microalgae Grown under Various Culture Conditions

Authors : Elifcan ÇALIŞKAN, Berat Zeki HAZNEDAROĞLU

Pages : 346-369

Doi:10.38001/ijlsb.1082112

View : 54 | Download : 9

Publication Date : 2022-12-15

Article Type : Research Paper

Abstract :Chlorococcum novae-angliae is a terrestrial green microalgae species with remarkable potential to synthesize omega-3 insert ignore into journalissuearticles values(ω-3); and omega-6 insert ignore into journalissuearticles values(ω-6); fatty acids. In this study, Chlorococcum novae-angliae has been subjected to varying growth conditions insert ignore into journalissuearticles values(light, nitrogen, salinity, and temperature); to investigate the accumulation of ω-3 and ω-6 fatty acids. Among tested growth conditions, eicosapentaenoic acid, α-linoleic acid, γ-linoleic acid, and arachidonic acid were enhanced by nitrogen limitation. Significant increases were observed in concentration of linoleic acid, an essential precursor molecule for the production ω-6 fatty acids under decreased nitrogen concentrations. Despite the lowest biomass growth, monounsaturated fatty acids and docosahexaenoic acid were increased by 14.4% and 8.7% under low light intensities, respectively. Meanwhile, the highest concentrations of palmitic acid insert ignore into journalissuearticles values(C16:0);, stearic acid insert ignore into journalissuearticles values(C18:0);, and oleic acid insert ignore into journalissuearticles values(18:1cis-9); were also detected under nitrogen limitation. Total lowest fatty acid concentrations were obtained under increased salinity while low temperature conditions heavily inhibited cellular growth.
Keywords : Chlorococcum novae angliae, essential fatty acids, microalgal lipids, omega fatty acids

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