Mixotrophic growth of a highly acidic habitat microalga for production of valuable fatty acids

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dc.contributor.authorRobles, María
dc.contributor.authorOstojic, Carol
dc.contributor.authorRuiz-Domínguez, Mari Carmen
dc.contributor.authorCuaresma, María
dc.contributor.authorGonzalo, Carlos
dc.contributor.authorObregón, Virginia
dc.contributor.authorFuentes, Juan Luis
dc.contributor.authorBartolomé, Alejandra
dc.contributor.authorVílchez, Carlos
dc.date.accessioned2026-01-30T15:19:37Z
dc.date.available2026-01-30T15:19:37Z
dc.date.issued2024
dc.description.abstractPhotoautotrophic 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 productivities 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.
dc.description.sponsorshipUniversidad de Huelva/CBUA. Andalusian Research, Development and Innovation Plan (Junta de Andalucía, Spain) with FEDER funds (Project P20_00930).
dc.identifier.doi10.1007/s10811-024-03255-5
dc.identifier.issn0921-8971
dc.identifier.urihttps://repositorioabierto.uantof.cl/handle/uantof/640
dc.language.isoen
dc.publisherSpringer Science and Business Media B.V.
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceJournal of Applied Phycology
dc.subjectAcidotolerant microalga
dc.subjectChlorophyta
dc.subjectMixotrophy
dc.subjectLipids
dc.subjectFatty acids
dc.subjectLinolenic acid
dc.titleMixotrophic growth of a highly acidic habitat microalga for production of valuable fatty acids
dc.typeArticle
oaire.citation.endPage2502
oaire.citation.issue5
oaire.citation.startPage2489
oaire.citation.volume36
organization.identifier.rorhttps://ror.org/04eyc6d95
organization.legalNameUniversidad de Antofagasta
uantof.identificator.departmentDepartamento de Ciencias de los Alimentos y Nutrición
uantof.identificator.facultyFacultad de Ciencias de la Salud
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