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Comparing cell viability and ethanol fermentation of the thermotolerant yeast Kluyveromyces marxianus and Saccharomyces cerevisiae on steam-exploded biomass treated with laccase.
Bioresour Technol. 2013 May; 135:239-45.BT

Abstract

In this study, the thermotolerant yeast Kluyveromyces marxianus CECT 10875 was compared to the industrial strain Saccharomyces cerevisiae Ethanol Red for lignocellulosic ethanol production. For it, whole slurry from steam-exploded wheat straw was used as raw material, and two process configurations, simultaneous saccharification and fermentation (SSF) and presaccharification and simultaneous saccharification and fermentation (PSSF), were evaluated. Compared to S. cerevisiae, which was able to produce ethanol in both process configurations, K. marxianus was inhibited, and neither growth nor ethanol production occurred during the processes. However, laccase treatment of the whole slurry removed specifically lignin phenols from the overall inhibitory compounds present in the slurry and triggered the fermentation by K. marxianus, attaining final ethanol concentrations and yields comparable to those obtained by S. cerevisiae.

Authors+Show Affiliations

IMDEA Energía, Biotechnological Processes for Energy Production Unit, Móstoles, Madrid 28935, Spain.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23265821

Citation

Moreno, Antonio D., et al. "Comparing Cell Viability and Ethanol Fermentation of the Thermotolerant Yeast Kluyveromyces Marxianus and Saccharomyces Cerevisiae On Steam-exploded Biomass Treated With Laccase." Bioresource Technology, vol. 135, 2013, pp. 239-45.
Moreno AD, Ibarra D, Ballesteros I, et al. Comparing cell viability and ethanol fermentation of the thermotolerant yeast Kluyveromyces marxianus and Saccharomyces cerevisiae on steam-exploded biomass treated with laccase. Bioresour Technol. 2013;135:239-45.
Moreno, A. D., Ibarra, D., Ballesteros, I., González, A., & Ballesteros, M. (2013). Comparing cell viability and ethanol fermentation of the thermotolerant yeast Kluyveromyces marxianus and Saccharomyces cerevisiae on steam-exploded biomass treated with laccase. Bioresource Technology, 135, 239-45. https://doi.org/10.1016/j.biortech.2012.11.095
Moreno AD, et al. Comparing Cell Viability and Ethanol Fermentation of the Thermotolerant Yeast Kluyveromyces Marxianus and Saccharomyces Cerevisiae On Steam-exploded Biomass Treated With Laccase. Bioresour Technol. 2013;135:239-45. PubMed PMID: 23265821.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparing cell viability and ethanol fermentation of the thermotolerant yeast Kluyveromyces marxianus and Saccharomyces cerevisiae on steam-exploded biomass treated with laccase. AU - Moreno,Antonio D, AU - Ibarra,David, AU - Ballesteros,Ignacio, AU - González,Alberto, AU - Ballesteros,Mercedes, Y1 - 2012/12/02/ PY - 2012/06/29/received PY - 2012/11/08/revised PY - 2012/11/10/accepted PY - 2012/12/26/entrez PY - 2012/12/26/pubmed PY - 2013/10/22/medline SP - 239 EP - 45 JF - Bioresource technology JO - Bioresour Technol VL - 135 N2 - In this study, the thermotolerant yeast Kluyveromyces marxianus CECT 10875 was compared to the industrial strain Saccharomyces cerevisiae Ethanol Red for lignocellulosic ethanol production. For it, whole slurry from steam-exploded wheat straw was used as raw material, and two process configurations, simultaneous saccharification and fermentation (SSF) and presaccharification and simultaneous saccharification and fermentation (PSSF), were evaluated. Compared to S. cerevisiae, which was able to produce ethanol in both process configurations, K. marxianus was inhibited, and neither growth nor ethanol production occurred during the processes. However, laccase treatment of the whole slurry removed specifically lignin phenols from the overall inhibitory compounds present in the slurry and triggered the fermentation by K. marxianus, attaining final ethanol concentrations and yields comparable to those obtained by S. cerevisiae. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/23265821/Comparing_cell_viability_and_ethanol_fermentation_of_the_thermotolerant_yeast_Kluyveromyces_marxianus_and_Saccharomyces_cerevisiae_on_steam_exploded_biomass_treated_with_laccase_ DB - PRIME DP - Unbound Medicine ER -