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Evaluation of the functional properties of kombucha-derived Brettanomyces yeasts

2026-05-29Documento de conferência Acesso aberto
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dc.contributor.authorAreal-Hermida, Lara
dc.contributor.authorCoelho, Pedro
dc.contributor.authorPichardo-Gallardo, Ángeles
dc.contributor.authorPrudêncio, Cristina
dc.contributor.authorSieiro, Carmen
dc.contributor.authorPrudêncio, Cristina
dc.contributor.authorCoelho, Pedro
dc.date.accessioned2026-07-28T09:15:07Z
dc.date.available2026-07-28T09:15:07Z
dc.date.issued2026-05-29
dc.description.abstractKombucha is a fermented beverage traditionally produced from tea and widely associated with benefi-cial health effects. These properties have been mainly attributed to the fermentable substrate and, to a less-er extent, to the microorganisms involved in the fer-mentation process. Therefore, the characterization of kombucha-associated microorganisms is essential to better understand and validate their potential health benefits. In this study, four probiotic yeast strains isolated from kombucha tea were identified, by the PCR-RFLP analysis of the ribosomal ITS region and the sequence of the D1/D2 domain of the 26S rDNA, as Brettanomyces bruxellensis (UVI55 and UVI56) and B. anomalus (UVI57 and UVI58). The evaluated strains exhibited remarkable antioxidant capacity, the abil-ity to hydrolyze bile salts, and antimicrobial activity against several key pathogens. Additionally, they displayed significant cytotoxic effects across various tumor cell lines. Notably, in the Caenorhabditis ele-gans in vivo model, strain UVI56 significantly extend-ed the nematode’s lifespan and conferred protection against S. enterica infection. Although additional in vivo studies are necessary to further elucidate the un-derlying biological mechanisms and validate the ther-apeutic potential of these yeasts, the present findings highlight the relevance of Brettanomyces species as key members of the kombucha microbial consortium. These strains exhibit multiple biological activities of potential biomedical interest and may contribute syn-ergistically to the health-promoting properties tradi-tionally associated with kombucha beverages.eng
dc.description.sponsorshipgrant number PID2022-138330OB-100 grant number GPC-ED431B2023/35 ED481A-2020/191
dc.identifier.citationAreal-Hermida, L., Coelho, P., Pichardo-Gallardo, Á., Prudêncio, C., & Sieiro, C. (2026). Evaluation of the functional properties of kombucha-derived Brettanomyces yeasts. Book of Abstracts of the 8th Meeting on Medicinal Biotechnology, 41. https://edicoes.ipp.pt/index.php/books/catalog/book/251
dc.identifier.doi10.26537/ed.p.porto.251
dc.identifier.isbn978-989-9226-20-3
dc.identifier.urihttp://hdl.handle.net/10400.22/32630
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPolitema
dc.relation.hasversionhttps://edicoes.ipp.pt/index.php/books/catalog/book/251
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectKombucha
dc.subjectYeasts
dc.subjectBrettanomyces
dc.subjectAntimicrobial activity
dc.subjectCytotoxicity
dc.subjectLongevity
dc.titleEvaluation of the functional properties of kombucha-derived Brettanomyces yeastseng
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferenceDate2026-05-29
oaire.citation.conferencePlacePorto
oaire.citation.endPage41
oaire.citation.startPage41
oaire.citation.titleBook of Abstracts of the 8th Meeting on Medicinal Biotechnology
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamePrudêncio
person.familyNameCoelho
person.givenNameCristina
person.givenNamePedro
person.identifier1200571
person.identifier.ciencia-idC81E-F4EE-FADE
person.identifier.ciencia-idBE18-3DB2-8D79
person.identifier.orcid0000-0002-9920-936X
person.identifier.orcid0000-0002-2343-1108
person.identifier.ridAAZ-9239-2020
person.identifier.scopus-author-id6508057930
person.identifier.scopus-author-id57214054449
relation.isAuthorOfPublication881a8ad5-ab13-4e49-89f4-08ca61cc81e3
relation.isAuthorOfPublicationeb030614-4140-437b-8ac3-f59c52566ecf
relation.isAuthorOfPublication.latestForDiscovery881a8ad5-ab13-4e49-89f4-08ca61cc81e3

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