Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor
| ISSN: |
1432-0614
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| Source: |
Springer Online Journal Archives 1860-2000
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| Topics: |
Biology
Process Engineering, Biotechnology, Nutrition Technology
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| Notes: |
Summary In ethanol production with immobilized yeast a major problem is the provision of nutrients to these highly concentrated cells. O2 being one of the nutrients of utmost importance to yeast cells, was fed into a column packed with beads with a cell loading of more than 40 g/l. Since addition of large volume of air or O2 to a cylindrical column reactor would aggravate the problems of pressure build up and channelling caused by the evolving CO2 gas, a tapered-column reactor and pulsed flow of oxygen gas was used. The supplement of O2 gas to the tapered column increased the productivity from 21.1 g ethanol x (l gel x h)-1 to 26.7 g x (l gel x h)-1, when the ethanol concentration at the outlet was about 80 g/l. The yield coefficient of ethanol was also increased from 0.41 g ethanol/g glucose to 0.43 after O2 supplement was started. The effects of frequency and duration of O2 supplement were also determined.
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| Type of Medium: |
Electronic Resource
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| URL: |
| _version_ | 1798295422576361473 |
|---|---|
| autor | Hamamci, Haluk Ryu, D. Y. |
| autorsonst | Hamamci, Haluk Ryu, D. Y. |
| book_url | http://dx.doi.org/10.1007/BF00250404 |
| datenlieferant | nat_lic_papers |
| hauptsatz | hsatz_simple |
| identnr | NLM202707466 |
| issn | 1432-0614 |
| journal_name | Applied microbiology and biotechnology |
| materialart | 1 |
| notes | Summary In ethanol production with immobilized yeast a major problem is the provision of nutrients to these highly concentrated cells. O2 being one of the nutrients of utmost importance to yeast cells, was fed into a column packed with beads with a cell loading of more than 40 g/l. Since addition of large volume of air or O2 to a cylindrical column reactor would aggravate the problems of pressure build up and channelling caused by the evolving CO2 gas, a tapered-column reactor and pulsed flow of oxygen gas was used. The supplement of O2 gas to the tapered column increased the productivity from 21.1 g ethanol x (l gel x h)-1 to 26.7 g x (l gel x h)-1, when the ethanol concentration at the outlet was about 80 g/l. The yield coefficient of ethanol was also increased from 0.41 g ethanol/g glucose to 0.43 after O2 supplement was started. The effects of frequency and duration of O2 supplement were also determined. |
| package_name | Springer |
| publikationsjahr_anzeige | 1988 |
| publikationsjahr_facette | 1988 |
| publikationsjahr_intervall | 8014:1985-1989 |
| publikationsjahr_sort | 1988 |
| publisher | Springer |
| reference | 28 (1988), S. 515-519 |
| search_space | articles |
| shingle_author_1 | Hamamci, Haluk Ryu, D. Y. |
| shingle_author_2 | Hamamci, Haluk Ryu, D. Y. |
| shingle_author_3 | Hamamci, Haluk Ryu, D. Y. |
| shingle_author_4 | Hamamci, Haluk Ryu, D. Y. |
| shingle_catch_all_1 | Hamamci, Haluk Ryu, D. Y. Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor Summary In ethanol production with immobilized yeast a major problem is the provision of nutrients to these highly concentrated cells. O2 being one of the nutrients of utmost importance to yeast cells, was fed into a column packed with beads with a cell loading of more than 40 g/l. Since addition of large volume of air or O2 to a cylindrical column reactor would aggravate the problems of pressure build up and channelling caused by the evolving CO2 gas, a tapered-column reactor and pulsed flow of oxygen gas was used. The supplement of O2 gas to the tapered column increased the productivity from 21.1 g ethanol x (l gel x h)-1 to 26.7 g x (l gel x h)-1, when the ethanol concentration at the outlet was about 80 g/l. The yield coefficient of ethanol was also increased from 0.41 g ethanol/g glucose to 0.43 after O2 supplement was started. The effects of frequency and duration of O2 supplement were also determined. 1432-0614 14320614 Springer |
| shingle_catch_all_2 | Hamamci, Haluk Ryu, D. Y. Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor Summary In ethanol production with immobilized yeast a major problem is the provision of nutrients to these highly concentrated cells. O2 being one of the nutrients of utmost importance to yeast cells, was fed into a column packed with beads with a cell loading of more than 40 g/l. Since addition of large volume of air or O2 to a cylindrical column reactor would aggravate the problems of pressure build up and channelling caused by the evolving CO2 gas, a tapered-column reactor and pulsed flow of oxygen gas was used. The supplement of O2 gas to the tapered column increased the productivity from 21.1 g ethanol x (l gel x h)-1 to 26.7 g x (l gel x h)-1, when the ethanol concentration at the outlet was about 80 g/l. The yield coefficient of ethanol was also increased from 0.41 g ethanol/g glucose to 0.43 after O2 supplement was started. The effects of frequency and duration of O2 supplement were also determined. 1432-0614 14320614 Springer |
| shingle_catch_all_3 | Hamamci, Haluk Ryu, D. Y. Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor Summary In ethanol production with immobilized yeast a major problem is the provision of nutrients to these highly concentrated cells. O2 being one of the nutrients of utmost importance to yeast cells, was fed into a column packed with beads with a cell loading of more than 40 g/l. Since addition of large volume of air or O2 to a cylindrical column reactor would aggravate the problems of pressure build up and channelling caused by the evolving CO2 gas, a tapered-column reactor and pulsed flow of oxygen gas was used. The supplement of O2 gas to the tapered column increased the productivity from 21.1 g ethanol x (l gel x h)-1 to 26.7 g x (l gel x h)-1, when the ethanol concentration at the outlet was about 80 g/l. The yield coefficient of ethanol was also increased from 0.41 g ethanol/g glucose to 0.43 after O2 supplement was started. The effects of frequency and duration of O2 supplement were also determined. 1432-0614 14320614 Springer |
| shingle_catch_all_4 | Hamamci, Haluk Ryu, D. Y. Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor Summary In ethanol production with immobilized yeast a major problem is the provision of nutrients to these highly concentrated cells. O2 being one of the nutrients of utmost importance to yeast cells, was fed into a column packed with beads with a cell loading of more than 40 g/l. Since addition of large volume of air or O2 to a cylindrical column reactor would aggravate the problems of pressure build up and channelling caused by the evolving CO2 gas, a tapered-column reactor and pulsed flow of oxygen gas was used. The supplement of O2 gas to the tapered column increased the productivity from 21.1 g ethanol x (l gel x h)-1 to 26.7 g x (l gel x h)-1, when the ethanol concentration at the outlet was about 80 g/l. The yield coefficient of ethanol was also increased from 0.41 g ethanol/g glucose to 0.43 after O2 supplement was started. The effects of frequency and duration of O2 supplement were also determined. 1432-0614 14320614 Springer |
| shingle_title_1 | Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor |
| shingle_title_2 | Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor |
| shingle_title_3 | Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor |
| shingle_title_4 | Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor |
| sigel_instance_filter | dkfz geomar wilbert ipn albert fhp |
| source_archive | Springer Online Journal Archives 1860-2000 |
| timestamp | 2024-05-06T09:35:57.601Z |
| titel | Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor |
| titel_suche | Effect of oxygen on ethanol fermentation in packed-bed tapered-column reactor |
| topic | W ZM |
| uid | nat_lic_papers_NLM202707466 |