Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation

A study was conducted to evaluate the biomass production of baker yeast, Saccharomyces cerevisiae in batch culture. Aerobic fermentation was carried out in clear shake-flasks using stillage as the sole culture medium for 48 hours. Removal of ethanol from stillage was carried out by boiling the broth...

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Main Authors: Balasupramaniam, Komathi, Kopli, Bujang
Format: E-Article
Language:English
Published: Universiti Malaysia Sarawak, UNIMAS 2011
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Online Access:http://ir.unimas.my/id/eprint/1784/1/Assessing%20Growth%20Performance%20Of%20Saccharomyces%20Cerevisiae%20In%20Stillage%20From%20Ethanol%20Fermentation.pdf
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spelling my.unimas.ir.17842016-04-12T04:02:48Z http://ir.unimas.my/id/eprint/1784/ Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation Balasupramaniam, Komathi Kopli, Bujang AC Collections. Series. Collected works A study was conducted to evaluate the biomass production of baker yeast, Saccharomyces cerevisiae in batch culture. Aerobic fermentation was carried out in clear shake-flasks using stillage as the sole culture medium for 48 hours. Removal of ethanol from stillage was carried out by boiling the broth for 2 hours until ethanol concentration was nearly 1-5 gL-1. Biomass production was optimized by varying glucose concentration as nutrient amendment. So, the growth of S.cerevisiae was higher (7 gL-1) in highest level of glucose concentration (150 gL-1). Effect of yeast growth and different glucose concentration on evolution of organic matter (measured as chemical oxygen demand, COD) was analyzed. The maximum reduction of COD was achieved practically after 48 hours from 92 gL-1 to 30.5 gL-1. COD removal was not affected by different glucose concentration as the reduction level was almost similar in all replicates. Aerobic biological degradation by baker’s yeast reduces the COD and overall reductions in the range of 60 to 70% were obtained. Universiti Malaysia Sarawak, UNIMAS 2011 E-Article NonPeerReviewed text en http://ir.unimas.my/id/eprint/1784/1/Assessing%20Growth%20Performance%20Of%20Saccharomyces%20Cerevisiae%20In%20Stillage%20From%20Ethanol%20Fermentation.pdf Balasupramaniam, Komathi and Kopli, Bujang (2011) Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation. Postgraduate Symposium on Resource Science and Technology. FRST. UNIMAS. 20-21 Dec 2011. http://malrep.uum.edu.my/
institution Universiti Malaysia Sarawak
building Centre for Academic Information Services (CAIS)
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sarawak
content_source UNIMAS Institutional Repository
url_provider http://ir.unimas.my/
language English
topic AC Collections. Series. Collected works
spellingShingle AC Collections. Series. Collected works
Balasupramaniam, Komathi
Kopli, Bujang
Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation
description A study was conducted to evaluate the biomass production of baker yeast, Saccharomyces cerevisiae in batch culture. Aerobic fermentation was carried out in clear shake-flasks using stillage as the sole culture medium for 48 hours. Removal of ethanol from stillage was carried out by boiling the broth for 2 hours until ethanol concentration was nearly 1-5 gL-1. Biomass production was optimized by varying glucose concentration as nutrient amendment. So, the growth of S.cerevisiae was higher (7 gL-1) in highest level of glucose concentration (150 gL-1). Effect of yeast growth and different glucose concentration on evolution of organic matter (measured as chemical oxygen demand, COD) was analyzed. The maximum reduction of COD was achieved practically after 48 hours from 92 gL-1 to 30.5 gL-1. COD removal was not affected by different glucose concentration as the reduction level was almost similar in all replicates. Aerobic biological degradation by baker’s yeast reduces the COD and overall reductions in the range of 60 to 70% were obtained.
format E-Article
author Balasupramaniam, Komathi
Kopli, Bujang
author_facet Balasupramaniam, Komathi
Kopli, Bujang
author_sort Balasupramaniam, Komathi
title Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation
title_short Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation
title_full Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation
title_fullStr Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation
title_full_unstemmed Assessing Growth Performance Of Saccharomyces Cerevisiae In Stillage From Ethanol Fermentation
title_sort assessing growth performance of saccharomyces cerevisiae in stillage from ethanol fermentation
publisher Universiti Malaysia Sarawak, UNIMAS
publishDate 2011
url http://ir.unimas.my/id/eprint/1784/1/Assessing%20Growth%20Performance%20Of%20Saccharomyces%20Cerevisiae%20In%20Stillage%20From%20Ethanol%20Fermentation.pdf
http://ir.unimas.my/id/eprint/1784/
http://malrep.uum.edu.my/
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