Advanced

Monitoring of growth and production characteristics of red yeasts cultivated on hydrothermally pretreated lignocellulosic pine material

Haronikova, A.; Liden, G. LU and Marova, I. (2018) In Chemical and Biochemical Engineering Quarterly 31(4). p.527-535
Abstract

The aim of this work was to compare the production of carotenes and ergosterol by red yeasts grown on pine lignocellulose substrates. The yeast strains Rhodotorula aurantiaca and Sporobolomyces shibatanus were grown on the liquid fraction of steam pretreated pine (210 °C, catalyst SO2). Biomass production on a pine hydrolysate was lower than on glucose. The highest content of carotenoids and ergosterol in the cells of R. aurantiaca grown on pine hydrolysate was about 1.7 mg g-1 and 0.8 mg g-1 (dwt), respectively, and in S. shibatanus about 0.9 mg g-1 and 0.1 mg g-1, respectively. Hemicellulose hydrolysates may contain many compounds that have inhibitory effects on microorganisms. In... (More)

The aim of this work was to compare the production of carotenes and ergosterol by red yeasts grown on pine lignocellulose substrates. The yeast strains Rhodotorula aurantiaca and Sporobolomyces shibatanus were grown on the liquid fraction of steam pretreated pine (210 °C, catalyst SO2). Biomass production on a pine hydrolysate was lower than on glucose. The highest content of carotenoids and ergosterol in the cells of R. aurantiaca grown on pine hydrolysate was about 1.7 mg g-1 and 0.8 mg g-1 (dwt), respectively, and in S. shibatanus about 0.9 mg g-1 and 0.1 mg g-1, respectively. Hemicellulose hydrolysates may contain many compounds that have inhibitory effects on microorganisms. In this work, the influences of some inhibitors were assessed by cultivating yeasts on media with a representative addition of the selected compounds. From these tests, furfural appears to be the most critical inhibitor, whereas acetic acid and 5-hydroxymethyl furfural (HMF) do not affect the growth so much.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Carotenoids, Ergosterol, Lignocellulose, Red yeasts, Steam pretreatment
in
Chemical and Biochemical Engineering Quarterly
volume
31
issue
4
pages
9 pages
external identifiers
  • scopus:85040940499
ISSN
0352-9568
DOI
language
English
LU publication?
yes
id
1950e462-57b1-41b0-8a33-4fbe04cc0573
date added to LUP
2018-02-06 10:23:43
date last changed
2018-05-29 12:11:15
@article{1950e462-57b1-41b0-8a33-4fbe04cc0573,
  abstract     = {<p>The aim of this work was to compare the production of carotenes and ergosterol by red yeasts grown on pine lignocellulose substrates. The yeast strains Rhodotorula aurantiaca and Sporobolomyces shibatanus were grown on the liquid fraction of steam pretreated pine (210 °C, catalyst SO<sup>2</sup>). Biomass production on a pine hydrolysate was lower than on glucose. The highest content of carotenoids and ergosterol in the cells of R. aurantiaca grown on pine hydrolysate was about 1.7 mg g<sup>-1</sup> and 0.8 mg g<sup>-1</sup> (dwt), respectively, and in S. shibatanus about 0.9 mg g<sup>-1</sup> and 0.1 mg g<sup>-1</sup>, respectively. Hemicellulose hydrolysates may contain many compounds that have inhibitory effects on microorganisms. In this work, the influences of some inhibitors were assessed by cultivating yeasts on media with a representative addition of the selected compounds. From these tests, furfural appears to be the most critical inhibitor, whereas acetic acid and 5-hydroxymethyl furfural (HMF) do not affect the growth so much.</p>},
  author       = {Haronikova, A. and Liden, G. and Marova, I.},
  issn         = {0352-9568},
  keyword      = {Carotenoids,Ergosterol,Lignocellulose,Red yeasts,Steam pretreatment},
  language     = {eng},
  month        = {01},
  number       = {4},
  pages        = {527--535},
  series       = {Chemical and Biochemical Engineering Quarterly},
  title        = {Monitoring of growth and production characteristics of red yeasts cultivated on hydrothermally pretreated lignocellulosic pine material},
  url          = {http://dx.doi.org/},
  volume       = {31},
  year         = {2018},
}