Detail publikace

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

HOLUB, J. SZOTKOWSKI, M. CHUJANOV, O. ŠPAČKOVÁ, D. SNIEGOŇOVÁ, P. MÁROVÁ, I.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Carotenogenic 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.

Klíčová slova

carotenogenic yeasts; poultry waste fat; poultry feather; enriched biomass; carotenoids; lipids; biorefinery

Autoři

HOLUB, J.; SZOTKOWSKI, M.; CHUJANOV, O.; ŠPAČKOVÁ, D.; SNIEGOŇOVÁ, P.; MÁROVÁ, I.

Vydáno

27. 1. 2023

Nakladatel

MDPI

Místo

BASEL

ISSN

2076-2607

Periodikum

Microorganisms

Ročník

11

Číslo

2

Stát

Švýcarská konfederace

Strany od

1

Strany do

18

Strany počet

18

URL

https://www.mdpi.com/2076-2607/11/2/321

Plný text v Digitální knihovně

http://hdl.handle.net/11012/212504

BibTex

@article{BUT183795,
  author="Jiří {Holub} and Martin {Szotkowski} and Oleg {Chujanov} and Dominika {Špačková} and Pavlína {Sniegoňová} and Ivana {Márová}",
  title="Production of Enriched Biomass by Carotenogenic Yeasts Cultivated on by-Products of Poultry Processing-A Screening Study",
  journal="Microorganisms",
  year="2023",
  volume="11",
  number="2",
  pages="1--18",
  doi="10.3390/microorganisms11020321",
  issn="2076-2607",
  url="https://www.mdpi.com/2076-2607/11/2/321"
}