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dc.creatorLeskošek-Čukalović, Ida
dc.creatorNedović, Viktor
dc.date.accessioned2020-12-17T17:59:28Z
dc.date.available2020-12-17T17:59:28Z
dc.date.issued2002
dc.identifier.urihttp://aspace.agrif.bg.ac.rs/handle/123456789/480
dc.description.abstractImmobilization of yeast cells offers many potential advantages in beer brewing and during the recent years, it has gained increasing interest in brewing industry. Over free cell systems, such as higher cell densities and loads, it enables much higher fermentation rates and remarkable shortening of the brewing process. This paper outlines several favourable bioreactor designs for primary beer fermentation and results obtained in internal loop gas-lift bioreactor system, introduced in this field by our research group. Several extrusion techniques for cell immobilization were investigated for production of alginate beads. Application of extrusion under gravity force, extrusion under coaxial air-jet and electrostatic droplet generation resulted in beads with diameters which ranged from 0.3 to 2 mm. These beads were successfully used in repeated batch and continuous beer fermentation in an internal loop gas-lift bioreactor for up to 3 months. Alginate was shown to be a suitable carrier for yeast cells. During a period of 3 months immobilized yeast cells have shown unchangeable activity and viability. Fermentation time was reduced below 1 day and final beers had desired sensory and analytical profiles.en
dc.publisherUniv Zagreb, Zagreb
dc.rightsrestrictedAccess
dc.sourceProceedings of the 4th Croatian Congress of Food Technologist, Biotechnologists
dc.subjectbeeren
dc.subjectimmobilized yeasten
dc.subjectinternal loop gas-lift bioreactoren
dc.subjectalginate beadsen
dc.subjectextrusionen
dc.titleBeer brewing with immobilized yeast cells - Current experiance and recent resultsen
dc.typeconferenceObject
dc.rights.licenseARR
dc.citation.epage302
dc.citation.other: 296-302
dc.citation.spage296
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_agrospace_480
dc.identifier.wos000183700900046
dc.type.versionpublishedVersion


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