Detail publikačního výsledku

Utilization of hydrothermally pretreated wheat straw for production of bioethanol and carotene-enriched biomass

PETRIK, S.; MAROVA, I.

Original Title

Utilization of hydrothermally pretreated wheat straw for production of bioethanol and carotene-enriched biomass

English Title

Utilization of hydrothermally pretreated wheat straw for production of bioethanol and carotene-enriched biomass

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

In this work hydrothermally pretreated wheat straw was used for production of bioethanol by Saccharomyces cerevisiae and carotene-enriched biomass by red yeasts Rhodotorula glutinis, Cystofilobasidium capitatum and Sporobolomyces roseus. To evaluate the convertibility of pretreated wheat straw into ethanol, simultaneous saccharification and fermentation of S. cerevisiae was performed under semi-anaerobic conditions. The highest ethanol production efficiency of 65–66% was obtained following pretreatment at 200 C without the catalytic action of acetic acid, and at 195 and 200 C respectively in the presence of catalyst. Red yeast strain S. roseus produced 1.73–2.22 mg/g of ergosterol on the filter cake, 1.15– 4.17 mg/g of ergosterol and 1.23–1.56 mg/g of b-carotene on pretreated wheat straw hydrolysates and also the highest amount of carotenoids and ergosterol on untreated wheat straw (1.70 and 4.17 mg/g, respectively).

English abstract

In this work hydrothermally pretreated wheat straw was used for production of bioethanol by Saccharomyces cerevisiae and carotene-enriched biomass by red yeasts Rhodotorula glutinis, Cystofilobasidium capitatum and Sporobolomyces roseus. To evaluate the convertibility of pretreated wheat straw into ethanol, simultaneous saccharification and fermentation of S. cerevisiae was performed under semi-anaerobic conditions. The highest ethanol production efficiency of 65–66% was obtained following pretreatment at 200 C without the catalytic action of acetic acid, and at 195 and 200 C respectively in the presence of catalyst. Red yeast strain S. roseus produced 1.73–2.22 mg/g of ergosterol on the filter cake, 1.15– 4.17 mg/g of ergosterol and 1.23–1.56 mg/g of b-carotene on pretreated wheat straw hydrolysates and also the highest amount of carotenoids and ergosterol on untreated wheat straw (1.70 and 4.17 mg/g, respectively).

Keywords

Hydrothermally pretreated wheat straw, Red yeasts, Bioethanol, Carotene-enriched biomass

Key words in English

Hydrothermally pretreated wheat straw, Red yeasts, Bioethanol, Carotene-enriched biomass

Authors

PETRIK, S.; MAROVA, I.

RIV year

2014

Released

08.02.2013

Publisher

Elsevier Ltd.

ISBN

0960-8524

Periodical

BIORESOURCE TECHNOLOGY

Volume

133

Number

4

State

Kingdom of the Netherlands

Pages from

370

Pages to

377

Pages count

7

Full text in the Digital Library

http://hdl.handle.net/

BibTex

@article{BUT102770,
  author="Siniša {Petrik} and Ivana {Márová}",
  title="Utilization of hydrothermally pretreated wheat straw for production of bioethanol and carotene-enriched biomass",
  journal="BIORESOURCE TECHNOLOGY",
  year="2013",
  volume="133",
  number="4",
  pages="370--377",
  doi="10.1016/j.biortech.2013.01.151",
  issn="0960-8524"
}