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Title:OPTIMIRANJE PROCESNIH PARAMETROV IN SESTAVE FERMENTACIJSKEGA MEDIJA ZA PROIZVODNJO KEFIRANA IZ NARAVNIH KEFIRNIH ZRN
Authors:ID Pivec, Tanja (Author)
ID Goršek, Andreja (Mentor) More about this mentor... New window
ID Kolar, Mitja (Comentor)
Files:.pdf UNI_Pivec_Tanja_2010.pdf (1,51 MB)
MD5: 62C901B3B84F36407032E2772A82C456
PID: 20.500.12556/dkum/2fba416c-86fb-4b09-b7e3-ecc675211230
 
Language:Slovenian
Work type:Undergraduate thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V diplomskem delu opisujemo potek določanja optimalnih procesnih parametrov in sestave fermentacijskega medija za proizvodnjo kefirana iz naravnih kefirnih zrn. Vse eksperimente smo opravljali v laboratorijskem šaržnem reaktorju (reakcijski kalorimeter RC1). Eksperimentalni del diplomske naloge je bil sestavljen iz dveh delov. V prvem delu smo preučevali vpliv temperature fermentacije in vrtilne frekvence mešala oz. režima mešanja na prirast kefirnih zrn in proizvodnjo kefirana. Izvajali smo 24-urne fermentacije. Vrednosti procesnih parametrov, pri katerih smo dobili najvišji donos kefirana, smo uporabili v drugem delu eksperimentalnega dela, v katerem smo optimirali sestavo fermentacijskega medija. Pri tem smo preučili vpliv različnih vrst rastnih dodatkov (sladkorjev, dušikovih spojin in vitaminov) na prirast kefirnih zrn in proizvodnjo kefirana. Uspešno smo povišali proizvodnjo kefirana z optimiranjem procesnih parametrov in dodatkom sladkorjev, medtem ko smo bili pri preučevanju vpliva dušikovih spojin in vitaminov na proizvodnjo kefirana manj uspešni.
Keywords:kefiran, kefirna zrna, optimiranje, procesni parametri, fermentacijski medij
Place of publishing:Maribor
Publisher:[T. Pivec]
Year of publishing:2010
PID:20.500.12556/DKUM-15288 New window
UDC:541.127:66.098(043.2)
COBISS.SI-ID:14460182 New window
NUK URN:URN:SI:UM:DK:ULFXGWJK
Publication date in DKUM:13.09.2010
Views:3028
Downloads:252
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
:
PIVEC, Tanja, 2010, OPTIMIRANJE PROCESNIH PARAMETROV IN SESTAVE FERMENTACIJSKEGA MEDIJA ZA PROIZVODNJO KEFIRANA IZ NARAVNIH KEFIRNIH ZRN [online]. Bachelor’s thesis. Maribor : T. Pivec. [Accessed 25 March 2025]. Retrieved from: https://dk.um.si/IzpisGradiva.php?lang=eng&id=15288
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Secondary language

Language:English
Title:OPTIMIZATION OF PROCESS PARAMETERS AND COMPOSITION OF FERMENTATION MEDIUM FOR KEFIRAN PRODUCTION FROM NATURAL KEFIR GRAINS
Abstract:This diploma work describes the determination of the optimum process parameters and composition of fermentation medium for kefir grains and kefiran production. All experiments have been carried out in a laboratory batch reactor (reaction calorimeter RC1). The experimental part of this work consists of two parts. In the first part we studied the effect of fermentation temperature and stirrer speed or different mixing regime on kefir grains growth and kefiran production. The fermentation of each experiment lasted 24 hours. The values of process parameters, where we get the highest concentration of kefiran, we used in the second part of experimental work in which we optimized the fermentation medium composition. Here we examine the growing influence of various additives (sugars, nitrogen compounds and vitamins) to increase the production of kefir grains and kefiran. We have successfully increased production kefiran by optimizing process parameters and addition of sugars, while we were examining the impact of nitrogen compounds and vitamins to produce kefiran less successful.
Keywords:kefiran, kefir grains, optimization, process parameters, fermentation medium


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