Ethanol production from wheat straw by Saccharomyces cerevisiae and Scheffersomyces stipitis co-culture in batch and continuous system. Karagoz, P. & Ozkan, M. BIORESOURCE TECHNOLOGY, 158:286-293, 2014. abstract bibtex In this research, Scheffersomyces stipitis and Saccharomyces cerevisiae
in immobilized and suspended state were used to convert pentose and
hexose sugars to ethanol. In batch and continuous systems, S. stipitis
and S. cerevisiae co-culture performance was better than S. cerevisiae.
Continuous ethanol production was performed in packed bed immobilized
cell reactor (ICR). In ICR, S. stipitis cells were found to be more
sensitive to oxygen concentration and other possible mass transfer
limitations as compared to S. cerevisiae. Use of co-immobilized S.
stipitis and S. cerevisiae resulted in maximum xylose consumption
(73.92%) and 41.68 g/L day ethanol was produced at HRT (hydraulic
retention time) of 6 h with wheat straw hydrolysate. At HRT of 0.75 h,
the highest amount of ethanol with the values of 356.21 and 235.43 g/L
day was produced when synthetic medium and wheat straw hydrolysate were
used as feeding medium in ICR, respectively. (C) 2014 Elsevier Ltd. All
rights reserved.
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title = {Ethanol production from wheat straw by Saccharomyces cerevisiae and Scheffersomyces stipitis co-culture in batch and continuous system},
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abstract = {In this research, Scheffersomyces stipitis and Saccharomyces cerevisiae
in immobilized and suspended state were used to convert pentose and
hexose sugars to ethanol. In batch and continuous systems, S. stipitis
and S. cerevisiae co-culture performance was better than S. cerevisiae.
Continuous ethanol production was performed in packed bed immobilized
cell reactor (ICR). In ICR, S. stipitis cells were found to be more
sensitive to oxygen concentration and other possible mass transfer
limitations as compared to S. cerevisiae. Use of co-immobilized S.
stipitis and S. cerevisiae resulted in maximum xylose consumption
(73.92%) and 41.68 g/L day ethanol was produced at HRT (hydraulic
retention time) of 6 h with wheat straw hydrolysate. At HRT of 0.75 h,
the highest amount of ethanol with the values of 356.21 and 235.43 g/L
day was produced when synthetic medium and wheat straw hydrolysate were
used as feeding medium in ICR, respectively. (C) 2014 Elsevier Ltd. All
rights reserved.},
bibtype = {article},
author = {Karagoz, Pinar and Ozkan, Melek},
journal = {BIORESOURCE TECHNOLOGY}
}
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