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Culturable yeast diversity associated with industrial cultures of the microalga microchloropsis gaditana and their ability to produce lipids and biosurfactants

2025-03-17Journal article Open access
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dc.contributor.authorMatos, Madalena
dc.contributor.authorFernandes, Mónica A.
dc.contributor.authorCosta, Inês
dc.contributor.authorCoelho, Natacha
dc.contributor.authorSantos, Tamara
dc.contributor.authorRossetto, Veronica
dc.contributor.authorVarela, João
dc.contributor.authorSá-Correia, Isabel
dc.date.accessioned2025-04-14T09:34:18Z
dc.date.available2025-04-14T09:34:18Z
dc.date.issued2025-03-17
dc.description.abstractThe marine oleaginous microalga Microchloropsis gaditana (formerly Nannochloropsis gaditana) exhibits a high capacity to thrive in a broad range of environmental conditions, being predominantly utilized as feed in aquaculture. This article reports the characterization of the culturable yeast population present during the scale-up process of M. gaditana cultivation at Necton S.A. facilities, from 5 L flasks until tubular photobioreactors. The 146 yeast isolates obtained, molecularly identified based on D1/D2 and ITS nucleotide sequences, belong to the species Rhodotorula diobovata, R. mucilaginosa, R. taiwanensis, R. sphaerocarpa, Vishniacozyma carnescens, Moesziomyces aphidis, and Meyerozyma guilliermondii. The yeast abundance was found to increase throughout upscaling stages. The yeast populations isolated from microalgal cultures and water samples share phylogenetically close isolates, indicating a possible common source. The impressive high percentage of red yeasts isolated (90%) is consistent with the recognized role of carotenoid pigments in yeast photoprotection. Sixty yeast isolates were tested for lipid (Nile Red staining) and biosurfactant (oil drop dispersion and emulsification index) production. Results revealed that these capacities are common features. Microbial lipids and biosurfactants have promising biotechnological applications. Moreover, biosurfactants can fulfill various physiological roles and provide advantages in natural environments contributing to the promising use of yeasts as probiotics in microalgae production.eng
dc.description.sponsorship2024.02788.BDANA,
dc.identifier.doi10.3390/jof11030228
dc.identifier.issn2309-608X
dc.identifier.urihttp://hdl.handle.net/10400.1/27015
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationInstitute for Bioengineering and Biosciences
dc.relationInstitute for Bioengineering and Biosciences
dc.relationInstitute for Health and Bioeconomy
dc.relationMicrobiome-mediated improvement of industrial Chlorella biomass production
dc.relation.ispartofJournal of Fungi
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectYeasts
dc.subjectYeast isolation
dc.subjectMicroalgae cultivation
dc.subjectRhodotorula
dc.subjectBasidiomycota
dc.subjectBiotechnological applications
dc.titleCulturable yeast diversity associated with industrial cultures of the microalga microchloropsis gaditana and their ability to produce lipids and biosurfactantseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute for Bioengineering and Biosciences
oaire.awardTitleInstitute for Bioengineering and Biosciences
oaire.awardTitleInstitute for Health and Bioeconomy
oaire.awardTitleMicrobiome-mediated improvement of industrial Chlorella biomass production
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04565%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04565%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0140%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F140143%2F2018/PT
oaire.citation.issue3
oaire.citation.titleJournal of Fungi
oaire.citation.volume11
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameCoelho
person.familyNameSantos
person.familyNameRossetto
person.familyNameVarela
person.givenNameNatacha
person.givenNameTamara
person.givenNameVeronica
person.givenNameJoão
person.identifier.ciencia-idC518-BDB3-E127
person.identifier.orcid0000-0003-4265-5622
person.identifier.orcid0000-0001-9008-4436
person.identifier.orcid0000-0002-4267-0315
person.identifier.orcid0000-0003-3101-693X
person.identifier.ridM-4223-2013
person.identifier.scopus-author-id55741416000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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