Enhancing yeast ethanol tolerance for biofuel production

Poster

Ishmayana, Safri, Kennedy, Ursula J. and Learmonth, Robert P.. 2009. "Enhancing yeast ethanol tolerance for biofuel production." Jiranek, Vladimir (ed.) 4th Australian Conference on Yeast Products and Discovery. Adelaide, South Australia 02 - 04 Dec 2009 Adelaide, Australia.
Paper/Presentation Title

Enhancing yeast ethanol tolerance for biofuel production

Presentation TypePoster
AuthorsIshmayana, Safri (Author), Kennedy, Ursula J. (Author) and Learmonth, Robert P. (Author)
EditorsJiranek, Vladimir
Journal or Proceedings TitleProceedings of the 4th Australian Conference on Yeast Products and Discovery
Number of Pages1
Year2009
Place of PublicationAdelaide, Australia
Web Address (URL) of Paperhttp://www.ayeastgroup.org/YPD/YPD_2009/default.asp
Conference/Event4th Australian Conference on Yeast Products and Discovery
Event Details
4th Australian Conference on Yeast Products and Discovery
Event Date
02 to end of 04 Dec 2009
Event Location
Adelaide, South Australia
Abstract

The decrease of fossil fuel availability has created a high demand for alternative fuels, including bioethanol produced by yeast fermentation of carbohydrate. Relatively low yields of ethanol can be a major problem in this bioconversion. Approaches to increase efficiency in the fuel ethanol industry include improving yeast metabolic flux and fermentation rate and selection of yeast with higher ethanol tolerance. This study has an alternative approach, aiming to enhance ethanol tolerance of several strains of Saccharomyces cerevisiae through modification of growth medium composition. It focuses specifically on two important components which have been shown to positively affect yeast stress tolerance; inositol and
L-proline. Various concentrations of these compounds are being added to laboratory scale fuel ethanol fermentations to determine levels that potentiate the highest ethanol tolerance and productivity of the yeast.

The authors would like to acknowledge the support of the Ministry of National Education of the Republic of Indonesia, for provision of a postgraduate scholarship to SI.

Keywordsyeast; ethanol; tolerance; biofuel
ANZSRC Field of Research 2020310199. Biochemistry and cell biology not elsewhere classified
310603. Fermentation
310605. Industrial microbiology (incl. biofeedstocks)
Public Notes

Poster presentation. Authors retain copyright.

Byline AffiliationsDepartment of Biological and Physical Sciences
Centre for Crop Health
Centre for Systems Biology
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