Conversion of Mixed Waste Food Substrates by Carotenogenic Yeasts of Rhodotorula sp. Genus

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dc.contributor.authorSzotkowski, Martincs
dc.contributor.authorPlhalová, Žanetacs
dc.contributor.authorSniegoňová, Pavlínacs
dc.contributor.authorHolub, Jiřícs
dc.contributor.authorChujanov, Olegcs
dc.contributor.authorŠpačková, Dominikacs
dc.contributor.authorBlažková, Janacs
dc.contributor.authorMárová, Ivanacs
dc.coverage.issue4cs
dc.coverage.volume11cs
dc.date.issued2023-04-13cs
dc.description.abstractThe consequence of the massive increase in population in recent years is the enormous production of mainly industrial waste. The effort to minimize these waste products is, therefore, no longer sufficient. Biotechnologists, therefore, started looking for ways to not only reuse these waste products, but also to valorise them. This work focuses on the biotechnological use and processing of waste oils/fats and waste glycerol by carotenogenic yeasts of the genus Rhodotorula and Sporidiobolus. The results of this work show that the selected yeast strains are able to process waste glycerol as well as some oils and fats in a circular economy model and, moreover, are resistant to potential antimicrobial compounds present in the medium. The best-growing strains, Rhodotorula toruloides CCY 062-002-004 and Rhodotorula kratochvilovae CCY 020-002-026, were selected for fed-batch cultivation in a laboratory bioreactor in a medium containing a mixture of coffee oil and waste glycerol. The results show that both strains were able to produce more than 18 g of biomass per litre of media with a high content of carotenoids (10.757 +/- 1.007 mg/g of CDW in R. kratochvilovae and 10.514 +/- 1.520 mg/g of CDW in R. toruloides, respectively). The overall results prove that combining different waste substrates is a promising option for producing yeast biomass enriched with carotenoids, lipids, and beta-glucans.en
dc.formattextcs
dc.format.extent1-25cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMicroorganisms. 2023, vol. 11, issue 4, p. 1-25.en
dc.identifier.doi10.3390/microorganisms11041013cs
dc.identifier.issn2076-2607cs
dc.identifier.orcid0000-0002-0982-5696cs
dc.identifier.orcid0000-0002-2095-1837cs
dc.identifier.other183798cs
dc.identifier.researcheridA-6897-2016cs
dc.identifier.scopus6603465110cs
dc.identifier.urihttp://hdl.handle.net/11012/213542
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMicroorganismscs
dc.relation.urihttps://www.mdpi.com/2076-2607/11/4/1013cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2076-2607/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectcarotenogenic yeastsen
dc.subjectbeta-glucansen
dc.subjectlipidsen
dc.subjectcarotenoidsen
dc.subjectwaste glycerolen
dc.subjectwaste animal faten
dc.subjectwaste frying oilen
dc.subjectwaste coffee oilen
dc.titleConversion of Mixed Waste Food Substrates by Carotenogenic Yeasts of Rhodotorula sp. Genusen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183798en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:42en
sync.item.modts2025.01.17 16:43:19en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie potravin a biotechnologiícs
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