Effect of Mixing on a Lab-Scale Bioreactor Productivity
In this paper, we study the impact of variable mixing conditions arising from the different sets of aeration rate and stirrer speed on the ethanolic fermentation process, which utilizes the hydrolyzed cassava starch as carbon source. Interestingly, over the ranges of aeration rate and stirrer speed...
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| Other Authors: | |
| Format: | Conference Paper |
| Published: |
Engineers Australia
2009
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| Online Access: | http://hdl.handle.net/20.500.11937/13383 |
| _version_ | 1848748333322993664 |
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| author | Liew, Emily Nandong, Jobrun Samyudia, Yudi |
| author2 | ICMS Pty Ltd |
| author_facet | ICMS Pty Ltd Liew, Emily Nandong, Jobrun Samyudia, Yudi |
| author_sort | Liew, Emily |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this paper, we study the impact of variable mixing conditions arising from the different sets of aeration rate and stirrer speed on the ethanolic fermentation process, which utilizes the hydrolyzed cassava starch as carbon source. Interestingly, over the ranges of aeration rate and stirrer speed used in the study, the ethanol yield varied from 10% to 85% of theoretical maximum yield. Additionally over these experimental conditions, the selectivity of ethanol over glycerol varied from 3.6 to 12.3. One conclusion that can be drawn from this experimental study is that, the large variations in yield, selectivity and ethanol formation rate were more likely due to the different mixing conditions resulting from different values of aeration rate and stirrer speed, and less likely due to glucose and growth rates as previously reported. |
| first_indexed | 2025-11-14T07:03:22Z |
| format | Conference Paper |
| id | curtin-20.500.11937-13383 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:03:22Z |
| publishDate | 2009 |
| publisher | Engineers Australia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-133832017-10-02T02:27:29Z Effect of Mixing on a Lab-Scale Bioreactor Productivity Liew, Emily Nandong, Jobrun Samyudia, Yudi ICMS Pty Ltd In this paper, we study the impact of variable mixing conditions arising from the different sets of aeration rate and stirrer speed on the ethanolic fermentation process, which utilizes the hydrolyzed cassava starch as carbon source. Interestingly, over the ranges of aeration rate and stirrer speed used in the study, the ethanol yield varied from 10% to 85% of theoretical maximum yield. Additionally over these experimental conditions, the selectivity of ethanol over glycerol varied from 3.6 to 12.3. One conclusion that can be drawn from this experimental study is that, the large variations in yield, selectivity and ethanol formation rate were more likely due to the different mixing conditions resulting from different values of aeration rate and stirrer speed, and less likely due to glucose and growth rates as previously reported. 2009 Conference Paper http://hdl.handle.net/20.500.11937/13383 Engineers Australia fulltext |
| spellingShingle | Liew, Emily Nandong, Jobrun Samyudia, Yudi Effect of Mixing on a Lab-Scale Bioreactor Productivity |
| title | Effect of Mixing on a Lab-Scale Bioreactor Productivity |
| title_full | Effect of Mixing on a Lab-Scale Bioreactor Productivity |
| title_fullStr | Effect of Mixing on a Lab-Scale Bioreactor Productivity |
| title_full_unstemmed | Effect of Mixing on a Lab-Scale Bioreactor Productivity |
| title_short | Effect of Mixing on a Lab-Scale Bioreactor Productivity |
| title_sort | effect of mixing on a lab-scale bioreactor productivity |
| url | http://hdl.handle.net/20.500.11937/13383 |