Publication result detail

Study of metabolic adaptation of red yeasts to waste animal fat substrate

SZOTKOWSKI, M.; MÁROVÁ, I.

Original Title

Study of metabolic adaptation of red yeasts to waste animal fat substrate

English Title

Study of metabolic adaptation of red yeasts to waste animal fat substrate

Type

Abstract

Original Abstract

Carotenogenic yeasts are non-conventional oleaginous microorganisms capable to utilize various waste substrates. In this work 4 red yeast strains (Rhodotorula, Cystofilobasidium and Sporobolomyces sp.) were cultivated in media containing crude, emulsified and enzymatically hydrolysed animal waste fat, compared with glucose and glycerol as single C-sources. Cell morphology (cryo-SEM, TEM), production of biomass, lipase, biosurfactants, lipids (GC/FID) carotenoids, ubiquinone, ergosterol (HPLC/PDA) in yeast cells was studied depending on medium composition, C-source and C/N ratio. All studied strains are able to utilize solid and processed fat. Compounds accumulated in stressed red yeasts are having great application potential and can result from valorization of animal waste fat in the biorefinery concept.

English abstract

Carotenogenic yeasts are non-conventional oleaginous microorganisms capable to utilize various waste substrates. In this work 4 red yeast strains (Rhodotorula, Cystofilobasidium and Sporobolomyces sp.) were cultivated in media containing crude, emulsified and enzymatically hydrolysed animal waste fat, compared with glucose and glycerol as single C-sources. Cell morphology (cryo-SEM, TEM), production of biomass, lipase, biosurfactants, lipids (GC/FID) carotenoids, ubiquinone, ergosterol (HPLC/PDA) in yeast cells was studied depending on medium composition, C-source and C/N ratio. All studied strains are able to utilize solid and processed fat. Compounds accumulated in stressed red yeasts are having great application potential and can result from valorization of animal waste fat in the biorefinery concept.

Keywords

animal fat, carotenoids, lipids, red yeasts

Key words in English

animal fat, carotenoids, lipids, red yeasts

Authors

SZOTKOWSKI, M.; MÁROVÁ, I.

RIV year

2021

Released

26.09.2020

ISBN

1314-3530

Periodical

BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT

Volume

35

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

10

Pages to

10

Pages count

1

Full text in the Digital Library

BibTex

@misc{BUT169945,
  author="Martin {Szotkowski} and Ivana {Márová}",
  title="Study of metabolic adaptation of red yeasts to waste animal fat substrate",
  year="2020",
  journal="BIOTECHNOLOGY & BIOTECHNOLOGICAL EQUIPMENT",
  volume="35",
  number="1",
  pages="10--10",
  issn="1310-2818",
  note="Abstract"
}