RT Journal Article
T1 Mixotrophic growth of a highly acidic habitat microalga for production of valuable fatty acids
A1 Robles Garrido, María
A1 Ostojic, Carol
A1 Ruiz Domínguez, María del Carmen
A1 Cuaresma Franco, María
A1 Gonzalo, Carlos
A1 Obregón, Virginia
A1 Fuentes Cordero, Juan Luis
A1 Bartolomé, Alejandra
A1 Vílchez Lobato, Carlos
AB Photoautotrophic algal cultivation is challenging due to the shadowing effect produced by an increase in the number of cells; under such circumstances, mixotrophic growth might be an efficient alternative. We grew cultures of the autochthonous acidotolerant microalga Elliptochloris sp. on crude technical glycerin or glucose bubbled with either only air or air containing 2.5 % (v/v) CO2. We found that CO2 strongly influenced the production of Elliptochloris sp., as higher growth occurred in mixotrophy with CO2-enriched air compared to that with only air. Mixotrophy with CO2-enriched air allowed to reach higher biomass productivities and facilitated an increase in the relative abundance of saturated fatty acids. Nevertheless, mixotrophy with only air resulted in an increase of both saturated and unsaturated fatty acids, but biomass  roductivities were lower. These results, along with the limited biological contamination facilitated by low pH, suggest that this microalga might be attractive for large-scale production within the circular economy model. 
PB Springer
SN 0921-8971
SN 1573-5176 (electrónico)
YR 2024
FD 2024
LK https://hdl.handle.net/10272/23717
UL https://hdl.handle.net/10272/23717
LA eng
NO Robles, M., Ostojic, C., Ruiz-Domínguez, M.C. et al. Mixotrophic growth of a highly acidic habitat microalga for production of valuable fatty acids. J Appl Phycol (2024). https://doi.org/10.1007/s10811-024-03255-5
NO Funding for open access publishing: Universidad de Huelva/CBUA. The research was supported by the Andalusian Research, Development and Innovation Plan (Junta de Andalucía, Spain) with FEDER funds (Project P20_00930). 
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026