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Growth Model and Metabolic Activity of Brewing Yeast Biofilm on the Surface of Spent Grains: A Biocatalyst for Continuous Beer Fermentation
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SYSNO ASEP 0105036 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Growth Model and Metabolic Activity of Brewing Yeast Biofilm on the Surface of Spent Grains: A Biocatalyst for Continuous Beer Fermentation Title Růstový model a a metabolická aktivita biofilmu z pivovarských kvasinek na povrchu mláta: Biokatalyzátor pro kontinuální fermentaci piva Author(s) Brányik, T. (PT)
Vicente, A. A. (PT)
Kuncová, Gabriela (UCHP-M) RID, SAI
Podrazký, Ondřej (UCHP-M)
Dostálek, P. (CZ)
Teixeira, J. A. (PT)Source Title Biotechnology Progress. - : Wiley - ISSN 8756-7938
Roč. 6, č. 20 (2004), s. 1733-1740Number of pages 8 s. Action International Congress of Chemical and Process Engineering CHISA 2004 /16./ Event date 22.08.2004-26.08.2004 VEvent location Praha Country CZ - Czech Republic Event type EUR Language eng - English Country US - United States Keywords growth model ; beer fermentation ; immobilized cells Subject RIV CE - Biochemistry CEZ AV0Z4072921 - UCHP-M Annotation In the continuous systems, such as continuous beer fermentation, immobilized cells are kept inside the bioreactor for long periods of time. Thus an important factor in the design and performance of the immobilized yeast reactor is immobilized cell viability and physiology. A mathematical model of the immobilized yeast biofilm growth on the surface of spent grain particles based on cell deposition, immobilized cell growth, and immobilized biomass detachment was formulated. The concept of the active fraction of immobilized biomass and the maximum attainable biomass load was included into the model. The model successfully predicted the dynamics of the immobilized cell growth, maximum biomass load, free cell growth, and glucose consumption under constant hydrodynamic conditions in a bubble-column reactor. Good agreement between model simulations and experimental data was achieved. Workplace Institute of Chemical Process Fundamentals Contact Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Year of Publishing 2005
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