Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis
Xylitol is an extracellular sugar alcohol produced by the biological conversion of xylose through the fermentation process. The present study investigates the reaction kinetics of xylitol fermentation by considering the effect of substrate and product concentration on the microbial growth rate. A 3....
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/43174/ http://psasir.upm.edu.my/id/eprint/43174/1/Dynamic%20mathematical%20modelling%20of%20reaction%20kinetics%20for%20xylitol%20fermentation%20using%20Candida%20tropicalis.pdf |
| _version_ | 1848850157684129792 |
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| author | Mohamad, Nurul Lina Mustapa Kamal, Siti Mazlina Mokhtar, Mohd Noriznan Hussain, Siti Aslina Abdullah, Norhafizah |
| author_facet | Mohamad, Nurul Lina Mustapa Kamal, Siti Mazlina Mokhtar, Mohd Noriznan Hussain, Siti Aslina Abdullah, Norhafizah |
| author_sort | Mohamad, Nurul Lina |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Xylitol is an extracellular sugar alcohol produced by the biological conversion of xylose through the fermentation process. The present study investigates the reaction kinetics of xylitol fermentation by considering the effect of substrate and product concentration on the microbial growth rate. A 3.5-L batch fermentation produced xylitol at different xylose concentrations and agitation speeds. The experimental data showed that the xylose concentration limit was less than 100 g/L and that increasing the xylose concentration reduced the xylitol and cell yields. The optimum agitation speed was 400 rpm with a kLa value of 32.6 h−1. The experimental data were used to estimate the unknown parameters with gPROMS software. The Monod model was modified to include the inhibitory effect of the substrate and the limitation effect of dissolved oxygen on cell growth. |
| first_indexed | 2025-11-15T10:01:50Z |
| format | Article |
| id | upm-43174 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:01:50Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-431742016-05-18T03:28:23Z http://psasir.upm.edu.my/id/eprint/43174/ Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis Mohamad, Nurul Lina Mustapa Kamal, Siti Mazlina Mokhtar, Mohd Noriznan Hussain, Siti Aslina Abdullah, Norhafizah Xylitol is an extracellular sugar alcohol produced by the biological conversion of xylose through the fermentation process. The present study investigates the reaction kinetics of xylitol fermentation by considering the effect of substrate and product concentration on the microbial growth rate. A 3.5-L batch fermentation produced xylitol at different xylose concentrations and agitation speeds. The experimental data showed that the xylose concentration limit was less than 100 g/L and that increasing the xylose concentration reduced the xylitol and cell yields. The optimum agitation speed was 400 rpm with a kLa value of 32.6 h−1. The experimental data were used to estimate the unknown parameters with gPROMS software. The Monod model was modified to include the inhibitory effect of the substrate and the limitation effect of dissolved oxygen on cell growth. Elsevier 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/43174/1/Dynamic%20mathematical%20modelling%20of%20reaction%20kinetics%20for%20xylitol%20fermentation%20using%20Candida%20tropicalis.pdf Mohamad, Nurul Lina and Mustapa Kamal, Siti Mazlina and Mokhtar, Mohd Noriznan and Hussain, Siti Aslina and Abdullah, Norhafizah (2016) Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis. Biochemical Engineering Journal, 111. pp. 10-17. ISSN 1369-703X; ESSN: 1873-295X http://www.sciencedirect.com/science/article/pii/S1369703X16300638 10.1016/j.bej.2016.02.017 |
| spellingShingle | Mohamad, Nurul Lina Mustapa Kamal, Siti Mazlina Mokhtar, Mohd Noriznan Hussain, Siti Aslina Abdullah, Norhafizah Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis |
| title | Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis |
| title_full | Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis |
| title_fullStr | Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis |
| title_full_unstemmed | Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis |
| title_short | Dynamic mathematical modelling of reaction kinetics for xylitol fermentation using Candida tropicalis |
| title_sort | dynamic mathematical modelling of reaction kinetics for xylitol fermentation using candida tropicalis |
| url | http://psasir.upm.edu.my/id/eprint/43174/ http://psasir.upm.edu.my/id/eprint/43174/ http://psasir.upm.edu.my/id/eprint/43174/ http://psasir.upm.edu.my/id/eprint/43174/1/Dynamic%20mathematical%20modelling%20of%20reaction%20kinetics%20for%20xylitol%20fermentation%20using%20Candida%20tropicalis.pdf |