Production of Enriched Biomass by Carotenogenic Yeasts Cultivated on by-Products of Poultry Processing-A Screening Study

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dc.contributor.authorHolub, Jiřícs
dc.contributor.authorSzotkowski, Martincs
dc.contributor.authorChujanov, Olegcs
dc.contributor.authorŠpačková, Dominikacs
dc.contributor.authorSniegoňová, Pavlínacs
dc.contributor.authorMárová, Ivanacs
dc.coverage.issue2cs
dc.coverage.volume11cs
dc.date.issued2023-01-27cs
dc.description.abstractCarotenogenic yeasts are a group of microorganisms producing valuable metabolites such as carotenoids, ergosterol, ubiquinone or fatty acids. Their exceptional adaptability allows them to grow in diverse conditions. Owing to their extracellular lipase activity, they are capable of processing many lipid-type waste substrates. This study discusses the processing of poultry waste, specifically fat and feathers by using carotenogenic yeasts. Poultry fat does not require any pre-treatment to be utilized by yeast, but hydrolytic pre-treatment is required for the utilization of the nitrogen contained in feathers. Glycerol was used as a supplementary substrate to support the culture in the early stages of growth. Seven yeast strains were used for the experiments, of which the strain Rhodotorula mucilaginosa CCY19-4-25 achieved exceptional results of biomass production: 29.5 g/L on poultry fat + 10% glycerol at C/N ratio 25 and 28.3 g/L on media containing poultry fat + 25% glycerol at C/N 50. The bioreactor cultivation of the Rhodosporidium toruloides strain in media containing glycerol and feather hydrolysate as a nitrogen substrate achieved a biomass yield of 34.92 g/L after 144 h of cultivation. The produced enriched yeast biomass can be used as a component for poultry feeding; thus, the study is performed under the biorefinery concept.en
dc.formattextcs
dc.format.extent1-18cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMicroorganisms. 2023, vol. 11, issue 2, p. 1-18.en
dc.identifier.doi10.3390/microorganisms11020321cs
dc.identifier.issn2076-2607cs
dc.identifier.orcid0000-0002-0982-5696cs
dc.identifier.orcid0000-0002-2095-1837cs
dc.identifier.other183795cs
dc.identifier.researcheridA-6897-2016cs
dc.identifier.scopus6603465110cs
dc.identifier.urihttp://hdl.handle.net/11012/212504
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMicroorganismscs
dc.relation.urihttps://www.mdpi.com/2076-2607/11/2/321cs
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.subjectpoultry waste faten
dc.subjectpoultry featheren
dc.subjectenriched biomassen
dc.subjectcarotenoidsen
dc.subjectlipidsen
dc.subjectbiorefineryen
dc.titleProduction of Enriched Biomass by Carotenogenic Yeasts Cultivated on by-Products of Poultry Processing-A Screening Studyen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-183795en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:38:42en
sync.item.modts2025.01.17 18:38:42en
thesis.grantorVysoké učení technické v Brně. Fakulta chemická. Ústav chemie potravin a biotechnologiícs
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