Modelling the kinetics of hexavalent molybdenum (Mo6+) reduction by the Serratia sp. strain MIE2 in batch culture
In the present work, the kinetics of hexavalent molybdenum reduction by the Serratia sp. strain MIE2 were investigated using several kinetic models, such as Monod, Haldane, Teissier, Aiba, Yano, Han and Levenspiel and Luong. The statistical analysis showed that the best model was Teissier, which had...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer-Verlag Italia Srl
2016
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| Online Access: | http://psasir.upm.edu.my/id/eprint/53312/1/Modelling%20the%20kinetics%20of%20hexavalent%20molybdenum%20%28Mo6%2B%29%20reduction%20by%20the%20Serratia%20sp.%20strain%20MIE2%20in%20batch%20culture.pdf |
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| author | Halmi, Mohd Izuan Effendi Sheikh Abdullah, Siti Rozaimah Wan Johari, Wan Lutfi Mohamad Ali, Mohd Shukuri Shaharuddin, Noor Azmi Khalid, Ariff Abd Shukor, Mohd Yunus |
| author_facet | Halmi, Mohd Izuan Effendi Sheikh Abdullah, Siti Rozaimah Wan Johari, Wan Lutfi Mohamad Ali, Mohd Shukuri Shaharuddin, Noor Azmi Khalid, Ariff Abd Shukor, Mohd Yunus |
| author_sort | Halmi, Mohd Izuan Effendi |
| collection | UPM |
| description | In the present work, the kinetics of hexavalent molybdenum reduction by the Serratia sp. strain MIE2 were investigated using several kinetic models, such as Monod, Haldane, Teissier, Aiba, Yano, Han and Levenspiel and Luong. The statistical analysis showed that the best model was Teissier, which had the lowest RMSE and AICc values, the highest adjusted R2 values, and an F test and with a bias factor and an accuracy factor nearest to unity (1.0). The calculated value for the Teissier constants, such as pmax, Ks and Ki, was 0.506 µmol Mo-blue h−1, 6.53 mM and 29.41 mM, respectively. The effect of heavy metals showed that hexavalent molybdenum reduction by the strain MIE2 was inhibited by silver, mercury and copper with a total inhibition of 96, 97, and 45 %, respectively, at a concentration of 1 ppm. Otherwise, the Mo-reducing enzyme was inhibited by mercury and zinc with an inhibition of 88 and 65 %, respectively. Most of the respiratory inhibitors did not inhibit the Mo-reducing enzyme activity, indicating that the respiratory system in this bacterium is not the site of the hexavalent molybdenum reduction. The results obtained from this study could be useful for estimating the relationship between molybdenum-blue production and the molybdate concentration, which may be important during the up scaling of the molybdenum bioremediation process. |
| first_indexed | 2024-03-06T09:17:31Z |
| format | Article |
| id | upm.eprints-53312 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T09:17:31Z |
| publishDate | 2016 |
| publisher | Springer-Verlag Italia Srl |
| record_format | dspace |
| spelling | upm.eprints-533122017-11-09T11:14:05Z http://psasir.upm.edu.my/id/eprint/53312/ Modelling the kinetics of hexavalent molybdenum (Mo6+) reduction by the Serratia sp. strain MIE2 in batch culture Halmi, Mohd Izuan Effendi Sheikh Abdullah, Siti Rozaimah Wan Johari, Wan Lutfi Mohamad Ali, Mohd Shukuri Shaharuddin, Noor Azmi Khalid, Ariff Abd Shukor, Mohd Yunus In the present work, the kinetics of hexavalent molybdenum reduction by the Serratia sp. strain MIE2 were investigated using several kinetic models, such as Monod, Haldane, Teissier, Aiba, Yano, Han and Levenspiel and Luong. The statistical analysis showed that the best model was Teissier, which had the lowest RMSE and AICc values, the highest adjusted R2 values, and an F test and with a bias factor and an accuracy factor nearest to unity (1.0). The calculated value for the Teissier constants, such as pmax, Ks and Ki, was 0.506 µmol Mo-blue h−1, 6.53 mM and 29.41 mM, respectively. The effect of heavy metals showed that hexavalent molybdenum reduction by the strain MIE2 was inhibited by silver, mercury and copper with a total inhibition of 96, 97, and 45 %, respectively, at a concentration of 1 ppm. Otherwise, the Mo-reducing enzyme was inhibited by mercury and zinc with an inhibition of 88 and 65 %, respectively. Most of the respiratory inhibitors did not inhibit the Mo-reducing enzyme activity, indicating that the respiratory system in this bacterium is not the site of the hexavalent molybdenum reduction. The results obtained from this study could be useful for estimating the relationship between molybdenum-blue production and the molybdate concentration, which may be important during the up scaling of the molybdenum bioremediation process. Springer-Verlag Italia Srl 2016-12 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53312/1/Modelling%20the%20kinetics%20of%20hexavalent%20molybdenum%20%28Mo6%2B%29%20reduction%20by%20the%20Serratia%20sp.%20strain%20MIE2%20in%20batch%20culture.pdf Halmi, Mohd Izuan Effendi and Sheikh Abdullah, Siti Rozaimah and Wan Johari, Wan Lutfi and Mohamad Ali, Mohd Shukuri and Shaharuddin, Noor Azmi and Khalid, Ariff and Abd Shukor, Mohd Yunus (2016) Modelling the kinetics of hexavalent molybdenum (Mo6+) reduction by the Serratia sp. strain MIE2 in batch culture. Rendiconti Lincei-Scienze Fisiche e Naturali, 27 (4). pp. 653-663. ISSN 2037-4631; ESSN: 1120-6349 https://link.springer.com/article/10.1007%2Fs12210-016-0545-3 10.1007/s12210-016-0545-3 |
| spellingShingle | Halmi, Mohd Izuan Effendi Sheikh Abdullah, Siti Rozaimah Wan Johari, Wan Lutfi Mohamad Ali, Mohd Shukuri Shaharuddin, Noor Azmi Khalid, Ariff Abd Shukor, Mohd Yunus Modelling the kinetics of hexavalent molybdenum (Mo6+) reduction by the Serratia sp. strain MIE2 in batch culture |
| title | Modelling the kinetics of hexavalent molybdenum (Mo6+)
reduction by the Serratia sp. strain MIE2 in batch culture |
| title_full | Modelling the kinetics of hexavalent molybdenum (Mo6+)
reduction by the Serratia sp. strain MIE2 in batch culture |
| title_fullStr | Modelling the kinetics of hexavalent molybdenum (Mo6+)
reduction by the Serratia sp. strain MIE2 in batch culture |
| title_full_unstemmed | Modelling the kinetics of hexavalent molybdenum (Mo6+)
reduction by the Serratia sp. strain MIE2 in batch culture |
| title_short | Modelling the kinetics of hexavalent molybdenum (Mo6+)
reduction by the Serratia sp. strain MIE2 in batch culture |
| title_sort | modelling the kinetics of hexavalent molybdenum mo6 reduction by the serratia sp strain mie2 in batch culture |
| url | http://psasir.upm.edu.my/id/eprint/53312/1/Modelling%20the%20kinetics%20of%20hexavalent%20molybdenum%20%28Mo6%2B%29%20reduction%20by%20the%20Serratia%20sp.%20strain%20MIE2%20in%20batch%20culture.pdf |
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