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Comparative Study on Two Commercial Strains of Saccharomyces cerevisiae for Optimum Ethanol Production on Industrial Scale
Joint Authors
Asgher, M.
Mukhtar, K.
Husayn, K.
Afghan, S.
Zia-ul-Hussnain, S.
Source
Journal of Biomedicine and Biotechnology
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-04-27
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Two commercial strains of Saccharomyces cerevisiae, Saf-Instant (Baker's yeast) and Ethanol red (Mutant) were compared for ethanol production during hot summer season, using molasses diluted up to 6-7∘ Brix containing 4%-5% sugars.
The yeasts were propagated in fermentation vessels to study the effects of yeast cell count and varying concentrations of Urea, DAP, inoculum size and Lactrol (Antibiotic).
Continuous circulation of mash was maintained for 24 hours and after this fermenter was allowed to stay for a period of 16 hours to give time for maximum conversion of sugars into ethanol.
Saccharomyces cerevisiae strain (Saf-instant) with cell concentration of 400 millions/mL at molasses sugar level of 13%–15% (pH 4.6±0.2, Temp.
32∘C±1), inoculum size of 25% (v/v), urea concentration, 150 ppm, DAP, 53.4 ppm and Lactrol,150 ppm supported maximum ethanol production (8.8%) with YP/S=250 L ethanol per tone molasses (96.5% yield), and had significantly lower concentrations of byproducts.
By selecting higher ethanol yielding yeast strain and optimizing the fermentation parameters both yield and economics of the fermentation process can be improved.
American Psychological Association (APA)
Mukhtar, K.& Asgher, M.& Afghan, S.& Husayn, K.& Zia-ul-Hussnain, S.. 2010. Comparative Study on Two Commercial Strains of Saccharomyces cerevisiae for Optimum Ethanol Production on Industrial Scale. Journal of Biomedicine and Biotechnology،Vol. 2010, no. 2010, pp.1-5.
https://search.emarefa.net/detail/BIM-470756
Modern Language Association (MLA)
Mukhtar, K.…[et al.]. Comparative Study on Two Commercial Strains of Saccharomyces cerevisiae for Optimum Ethanol Production on Industrial Scale. Journal of Biomedicine and Biotechnology No. 2010 (2010), pp.1-5.
https://search.emarefa.net/detail/BIM-470756
American Medical Association (AMA)
Mukhtar, K.& Asgher, M.& Afghan, S.& Husayn, K.& Zia-ul-Hussnain, S.. Comparative Study on Two Commercial Strains of Saccharomyces cerevisiae for Optimum Ethanol Production on Industrial Scale. Journal of Biomedicine and Biotechnology. 2010. Vol. 2010, no. 2010, pp.1-5.
https://search.emarefa.net/detail/BIM-470756
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-470756