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EnglishIn the present work a deactivation model for an inulinase from Aspergillus niger is presented; a first order kinetic is found and the deactivation constant kd is related to temperature through the Arrhenius model. The deactivation model was satisfactorily validated and implemented into a kinetic model for inulin hydrolysis predictions; the result is a complete model that is able to predict reaction performances for substrate concentrations ranging between 10 and 40 g/l and reaction temperature up to 60 ◦ C, even on a long time scale. The model is also shown to be a powerful tool to understand reaction paths and to choose the optimal reaction conditions for long time scale processes. A relevant problem for enzymatic process temperature optimization is formulated and solved by means of the predictive model determined.
Optimization of inulin hydrolysis by inulinase accounting for enzyme time- and temperature-dependent deactivation / Ricca, E; Calabro', Vincenza; Curcio, Stefano; Iorio, G.. - In: BIOCHEMICAL ENGINEERING JOURNAL. - ISSN 1369-703X. - 48:1(2009), pp. 81-86.
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| Titolo: | Optimization of inulin hydrolysis by inulinase accounting for enzyme time- and temperature-dependent deactivation |
| Autori: | |
| Data di pubblicazione: | 2009 |
| Rivista: | |
| Citazione: | Optimization of inulin hydrolysis by inulinase accounting for enzyme time- and temperature-dependent deactivation / Ricca, E; Calabro', Vincenza; Curcio, Stefano; Iorio, G.. - In: BIOCHEMICAL ENGINEERING JOURNAL. - ISSN 1369-703X. - 48:1(2009), pp. 81-86. |
| Handle: | http://hdl.handle.net/20.500.11770/144750 |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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