Evaluation of Productivity of Zymotis Solid-State Bioreactor Based on Total Reactor Volume
| العنوان: | Evaluation of Productivity of Zymotis Solid-State Bioreactor Based on Total Reactor Volume |
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| المؤلفون: | David A. Mitchell, Oscar F. von Meien, Luiz Fernando L. Luz Jr, Nadia Krieger |
| المصدر: | Food Technology and Biotechnology Volume 40 Issue 2 |
| بيانات النشر: | Faculty of Food Technology and Biotechnology, University of Zagreb, 2002. |
| سنة النشر: | 2002 |
| مصطلحات موضوعية: | Zymotis bioreactor, volumetric productivity, solid-state fermentation, modeling, large scale cultivation, heat transfer |
| الوصف: | In this work a method of analyzing the performance of solid-state fermentation bioreactors is described. The method is used to investigate the optimal value for the spacing between the cooling plates of the Zymotis bioreactor, using simulated fermentation data supplied by a mathematical model. The Zymotis bioreactor has good potential for those solid-state fermentation processes in which the substrate bed must remain static. The current work addresses two design parameters introduced by the presence of the internal heat transfer plates: the width of the heat transfer plate, which is governed by the amount of heat to be removed and the pressure drop of the cooling water, and the spacing between these heat transfer plates. In order to analyze the performance of the bioreactor a productivity term is introduced that takes into account the volume occupied within the bioreactor by the heat transfer plates. As part of this analysis, it is shown that, for logistic growth kinetics, the time at which the biomass reaches 90 % of its maximum possible value is a good estimate of the optimum harvesting time for maximizing productivity. Application of the productivity analysis to the simulated fermentation results suggests that, with typical fast growing fungi ( = 0.324 h–1), the optimal spacing between heat transfer plates is of the order of 6 cm. The general applicability of this approach to evaluate the productivity of solid-state bioreactors is demonstrated. Opisana je metoda analize rada fermentacijskog bioreaktora sa čvrstim slojem. Postupak je primijenjen da bi se ispitala optimalna vrijednost za razmak između ploča za hlađenje u bioreaktoru Zymotis, koristeći simulirane fermentacijske podatke dobivene prema matematičkom modelu. Bioreaktor Zymotis je vrlo prikladan za one fermentacijske procese u čvrstom sloju u kojima supstratni sloj mora ostati statičan. Opisani postupak koristi dva određena parametra uvjetovana prisutnošću internih ploča za prijenos topline. Širina ploča za prijenos topline uvjetovana je količinom topline koju treba uklonitii padom tlaka rashladne vode te razmakom između tih ploča. Da bi se analizirao učinak bioreaktora, uveden je pojam produktivnosti koji uzima u obzir volumen unutar bioreaktora što ga zauzimaju ploče za prijenos topline. Kao dio ove analize pokazalo se da je, prema logistici kinetike rasta, optimalno vrijeme za povećavanje produktivnosti upravo ono kada biomasa postiže 90 % svoje maksimalne moguće vrijednosti. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 1334-2606 1330-9862 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=od_______951::912350293dbb57f72273b6911a076197 https://hrcak.srce.hr/file/263012 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.od.......951..912350293dbb57f72273b6911a076197 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13342606 13309862 |
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