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master's thesis
Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2024. urn:nbn:hr:159:302590
Vlahović, Toni
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Biochemical Engineering
Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology

Institutional repository: Repository of the Faculty of Food Technology and Biotechnology

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Vlahović, T. (2024). Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990 (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:302590

Vlahović, Toni. "Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2024. https://urn.nsk.hr/urn:nbn:hr:159:302590

Vlahović, Toni. "Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2024. https://urn.nsk.hr/urn:nbn:hr:159:302590

Vlahović, T. (2024). 'Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 17 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:302590

Vlahović T. Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990 [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2024 [cited 2025 January 17] Available at: https://urn.nsk.hr/urn:nbn:hr:159:302590

T. Vlahović, "Proizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:159:302590

Metadata
TitleProizvodnja arabitola iz glicerola pomoću kvasca Debaryomyces hansenii JCM 1990
Title (english)Production of arabitol from glycerol by yeast Debaryomyces hansenii JCM 1990
AuthorToni Vlahović
MentorMario Novak (mentor)
MentorNenad Marđetko (pomoć pri izradi, neposredni voditelj)
Committee memberAntonija Trontel (predsjednik povjerenstva)
Committee memberAndreja Leboš-Pavunc (član povjerenstva)
Committee memberBlaženka Kos (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Biochemical Engineering)
(Laboratory for Biochemical Engineering, Industrial Microbiology and Malting and Brewing Technology)
Zagreb
Defense date and country2024-11-28, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
Zbog modernizacije, ljudi su uvijek u potrazi za novim obnovljivim izvorima energije. Glicerol, nusproizvod industrije biodizela, predstavlja zanimljivu priliku za pretvaranje proizvoda niske vrijednosti u proizvode kao što su arabitol i ksilitol, visokovrijedni šećerni alkoholi koji se koriste u raznim industrijama, uglavnom u prehrambenoj industriji kao umjetni zaslađivači. Kemijska sinteza navedenih tvari često je skupa, pa se razmatra biotehnološki pristup. Debaryomyces hansenii, ne-Saccharomyces kvasac, ima sposobnost sintetizirati arabitol koristeći glicerol kao supstrat. Svrha ovog rada bila je odrediti optimalnu pH vrijednost, početnu koncentraciju glicerola i koncentraciju natrijevog klorida za proizvodnju arabitola pomoću kvasca Debaryomyces hansenii JCM 1990. Najveća produktivnost (Prarabitol = 0,035 g/Lh) kao i najveći prinos (Yarabitol = 4,235 g/L) uočeni su u mediju s 50 g/L glicerola, 0 g/L NaCl i pH vrijednosti 6.
Abstract (english)
Abstract: Due to modernization, humans are always searching for new renewable energy sources. Glycerol, a byproduct of the biodiesel industry, presents an interesting opportunity to turn low value product into products such as arabitol and xylitol, which are high value sugar alcohols that are used in various industries, mainly in food industry as artificial sweeteners. Chemical synthesis of said substances is often expensive, so a biotechnological approach is considered. Debaryomyces hansenii, a non-Saccharomyces yeast, has a capability to synthesize arabitol using glycerol as substrate. The purpose of this paper was to determine the optimal pH level, initial glycerol concentration and sodium chloride concentration for arabitol production using the yeast Debaryomyces hansenii JCM 1990. Highest productivity (Prarabitol = 0,0353 g/Lh) as well as highest yield (Yarabitol = 4,235 g/L) were observed in medium with 50 g/L glycerol, 0 g/L NaCl and a pH level of 6.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:302590
Study programmeTitle: Bioprocess Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva (magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2024-12-03 14:29:25