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dc.creatorManojlović, Verica
dc.creatorAgouridis, Nikos
dc.creatorKopsahelis, Nikos
dc.creatorKanellaki, Maria
dc.creatorBugarski, Branko
dc.creatorNedović, Viktor
dc.date.accessioned2021-03-10T10:51:35Z
dc.date.available2021-03-10T10:51:35Z
dc.date.issued2008
dc.identifier.isbn978-953620788-6
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/1219
dc.description.abstractThe aim of this study was to examine the novel gas-lift three phase bioreactor with external loop in beer fermentation by immobilized yeast cells on gluten pellets. Cells of Saccharomyces cerevisiae were immobilized on 40 g of gluten pellets, freeze-dried and introduced into a 1.4 L external loop gas-lift bioreactor with 1.1 L of wort. During the fermentation process, nitrogen was inserted in the bioreactor. Several batch repetitive fermentation processes were performed at different temperatures (5, 10 and 20 degrees C). The kinetics of fermentation and beer productivity were determined. Relatively high cell concentrations and presumably, good mass transfer rates in the flowing medium enabled rapid fermentation (48 h fermentation time at 20 degrees C) and high beer productivity of this system, even with such low load of immobilised biocatalyst (3.6% w/w). Further, the final beer product was analyzed on ethanol and volatile compounds important for the organolaptic profile. Contents of ethanol and flavour compounds were in the ranges characteristic for beers of acceptable to fine quality. In addition, preliminary tests on hydrodynamic characteristics of the external loop gas-lift bioreactor were done, providing important information for potential establishing and standardization of this type of fermentors for beer production in prospect.en
dc.publisher2008 Joint Central European Congress of the 4th Central European Congress on Food, CEFood 2008 and 6th Croatian Congress of Food Technologists, Biotechnologists and Nutritionists
dc.rightsrestrictedAccess
dc.sourceProceedings - 2008 Joint Central European Congress: 4th Central European Congress on Food, CEFood 20
dc.titleBrewing by Immobilized Freeze Dried Cells in a Novel Gas Flow Bioreactoren
dc.typeconferenceObject
dc.rights.licenseARR
dc.citation.epage334
dc.citation.other2: 327-334
dc.citation.spage327
dc.citation.volume2
dc.identifier.pmid
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_technorep_1219
dc.identifier.scopus2-s2.0-84891400446
dc.identifier.wos000269184700043
dc.type.versionpublishedVersion


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