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master's thesis
Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2021. urn:nbn:hr:159:012000
Moslavac, Marija
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Oil and Fat Technology

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

Cite this document

Moslavac, M. (2021). Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:012000

Moslavac, Marija. "Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2021. https://urn.nsk.hr/urn:nbn:hr:159:012000

Moslavac, Marija. "Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2021. https://urn.nsk.hr/urn:nbn:hr:159:012000

Moslavac, M. (2021). 'Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 06 July 2024, https://urn.nsk.hr/urn:nbn:hr:159:012000

Moslavac M. Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2021 [cited 2024 July 06] Available at: https://urn.nsk.hr/urn:nbn:hr:159:012000

M. Moslavac, "Utjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:159:012000

Metadata
TitleUtjecaj kultivara i geografskog porijekla na udjel i sastav sterola u bučinom ulju
Title (english)Influence of cultivar and geographical origin on the content and composition of sterols in pumpkin seed oil
AuthorMarija Moslavac
MentorSandra Balbino (mentor)
Committee memberMarko Obranović (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for Oil and Fat Technology)
Zagreb
Defense date and country2021-07-21, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Cilj ovog rada bio je ispitati razlike u sastavu sterola bučinih ulja različitog geografskog porijekla. Sastav sterola utvrđen je metodom HRN EN ISO 12228:2004. Analizirana su 53 uzorka iz 10 županija kontinentalne Hrvatske pri čemu je bilo zastupljeno 5 kultivara, samostalno ili u kombinaciji. Kod svih uzoraka utvrđeni su udjeli 13 različitih sterola te je određena ukupna količina sterola u mg kg-1. Dobiveni podaci statistički su analizirani te je utvrđena statistički značajna razlika kod udjela kampestanola, stigmastadienola i Δ7-avenasterola s obzirom na županiju iz koje dolaze, dok je s obzirom na kultivare razlika utvrđena u udjelu 24-metilenkolesterola, kampestanola, Δ7-kampesterola, stigmastadienola i Δ7-avenasterola. Isto tako, određena je korelacija između sastava sterola te razlike temperature i količine padalina tijekom ljeta 2020. godine u odnosu na normalu, međutim utvrđena je samo pozitivna korelacija između količine padalina i udjela kampesterola. Provedena je usporedba sastava sterola u odnosu na važeći Pravilnik o jestivim uljima i mastima (2019) te su kod određenih sterola utvrđena odstupanja u odnosu na propisane vrijednosti.
Abstract (english)
The aim of this thesis was to investigate the differences in sterol content between pumpkin seed oils with different geographical origin. Sterol content was determined with HRN EN ISO 12228:2004 method. 53 samples from 10 counties in continental Croatia were analysed with 5 cultivars represented, alone or in combination. The proportions of 13 different sterols and the total amount of sterols in mg kg-1 were determined in all 53 samples. The obtained data were statistically analysed, and a statistically significant difference was found in the content of campestanol, stigmastadienol and Δ7-avenasterol given the county they come from, while difference in the content of 24-methylene cholesterol, campestanol, Δ7-campesterol, stigmastadienol and Δ7-avenasterol was found in the composition of sterols regarding cultivars. Also, the correlation between the composition of sterols and the difference in temperature and in the amount of precipitation during the summer of 2020 in relation to the normal was determined. However, positive correlation was found only between precipitation and campesterol content. A comparison of the composition of sterols in relation to the current Ordinance on edible oils and fats (2019) was performed, and deviations in relation to the prescribed values were determined for certain sterols.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:012000
Study programmeTitle: Food Safety Management
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka upravljanja sigurnošću hrane (magistar/magistra inženjer/inženjerka upravljanja sigurnošću hrane)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2021-07-29 12:14:33