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master's thesis
Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR
Zagreb: University of Zagreb, Faculty of Science, 2024. urn:nbn:hr:217:031180
Vuran, Alma
University of Zagreb
Faculty of Science
Department of Chemistry

Institutional repository: Repository of the Faculty of Science

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Vuran, A. (2024). Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR (Master's thesis). Zagreb: University of Zagreb, Faculty of Science. Retrieved from https://urn.nsk.hr/urn:nbn:hr:217:031180

Vuran, Alma. "Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR." Master's thesis, University of Zagreb, Faculty of Science, 2024. https://urn.nsk.hr/urn:nbn:hr:217:031180

Vuran, Alma. "Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR." Master's thesis, University of Zagreb, Faculty of Science, 2024. https://urn.nsk.hr/urn:nbn:hr:217:031180

Vuran, A. (2024). 'Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR', Master's thesis, University of Zagreb, Faculty of Science, accessed 11 January 2025, https://urn.nsk.hr/urn:nbn:hr:217:031180

Vuran A. Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR [Master's thesis]. Zagreb: University of Zagreb, Faculty of Science; 2024 [cited 2025 January 11] Available at: https://urn.nsk.hr/urn:nbn:hr:217:031180

A. Vuran, "Detaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR", Master's thesis, University of Zagreb, Faculty of Science, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:217:031180

Metadata
TitleDetaljna karakterizacija jestivih ulja i njihovih binarnih smjesa pomoću spektroskopije NMR
Title (english)Detailed characterization of edible oils and their binary mixtures using NMR spectroscopy
AuthorAlma Vuran
MentorJelena Parlov Vuković (mentor)
Committee memberPredrag Novak (predsjednik povjerenstva)
Committee memberInes Primožič (član povjerenstva)
Committee memberMirta Rubčić (član povjerenstva)
Committee memberTomislav Jednačak (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Science
(Department of Chemistry)
Zagreb
Defense date and country2024-10-17, Croatia
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Chemistry
Abstract
Ulja su jedan od tri glavna izvora energije koja su potrebna za pravilno funkcioniranje ljudskog organizma. Biljna ulja složene su smjese koje se po sastavu dijele na sapunjivu frakciju u koju ubrajamo mono-, di- i tri- gliceride te neosapunjivu frakciju u koju podrazumijevamo alifatske alkohole, ugljikovodike, sterole, pigmente, tokoferole i fenolne skupine. S obzirom na veliku primjenu u različitim aspektima života, nužno je pooštravanje kontrole kvalitete. U ovom radu provedena je kvalitativna i kvantitativna analiza pet uzoraka biljnih ulja tehnikama 1H, 13C i DOSY NMR. Dobiveni podatci poslužili su za karakterizaciju uzorka te određivanje strukturnih parametara. Analizom spektara 1H NMR dobivene su informacije o udjelima protona te masnih kiselina u uzorcima dok je analiza spektara 13C NMR pokazala patvorenje maslinovih sa suncokretovim uljem. Tehnika DOSY NMR pokazala je postojanje više komponenata prisutnih u ulju na temelju različitih translacijskih difuzijskih koeficijenata.
Abstract (english)
Oils are one of the three main energy sources needed for proper functioning of the human body. Vegetable oils are complex mixtures which can be separated into a saponifiable fraction, including mono-, di- and triglycerides, and an unsaponifiable fraction, including aliphatic alcohols, hydrocarbons, sterols, pigments, tocopherols and phenolic compounds. Considering wide applications of oils in different aspects of life, stronger quality control is necessary. In this work, qualitative and quantitative analyses of five edible oil samples were performed by 1H, 13C and DOSY NMR techniques. Obtained data enabled characterization of the samples and determination of structural parameters. Information about proton and fatty acids percentages in samples was obtained by analysing 1H NMR spectra while adulteration with sunflower oil was studied by 13C NMR spectra. DOSY NMR spectroscopy showed presence of different species in each oil sample based on different translational diffusion coefficients. reflecting.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:217:031180
ProjectNumber: IPS-2023-02-6614
Title: Valorizacija proizvodnih ostataka iz tvornica ulja bazirana na konceptu biorafinerije
Title: Valorisation of residues from the vegetable oil industry based on a biorefinery approach
Acronym: VALREO
Jurisdiction: Croatia
Funder: Hrvatska zaklada za znanost
Funding stream: Slovenian-Croatian Bilateral Projects
Study programmeTitle: Graduate university studies in chemistry; specializations in: Graduate university studies in chemistry
Course: Graduate university studies in chemistry
Study programme type: university
Study level: graduate
Academic / professional title: sveučilišni/a magistar/magistra kemije (sveučilišni/a magistar/magistra kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2024-10-30 13:58:52