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master's thesis
Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora
Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2022. urn:nbn:hr:109:370131
Katić, Maja
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Food and Nutrition Research
Sub-department of Food Quality

Institutional repository: Repository of the Faculty of Food Technology Osijek

Cite this document

Katić, M. (2022). Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:370131

Katić, Maja. "Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2022. https://urn.nsk.hr/urn:nbn:hr:109:370131

Katić, Maja. "Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2022. https://urn.nsk.hr/urn:nbn:hr:109:370131

Katić, M. (2022). 'Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 12 September 2024, https://urn.nsk.hr/urn:nbn:hr:109:370131

Katić M. Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2022 [cited 2024 September 12] Available at: https://urn.nsk.hr/urn:nbn:hr:109:370131

M. Katić, "Određivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:109:370131

Metadata
TitleOdređivanje sastava masnih kiselina iz odabranih vrsta makroalgi iz Jadranskog mora
Title (english)Determination of Fatty Acid Content of Selected Macroalgal Species from the Adriatic Sea
AuthorMaja Katić
MentorIvana Flanjak (mentor)
MentorStela Jokić (komentor)
MentorAna-Marija Cikoš (pomoć pri izradi, neposredni voditelj)
Committee memberBlanka Bilić Rajs (predsjednik povjerenstva)
Committee memberIvana Flanjak (član povjerenstva)
Committee memberStela Jokić (član povjerenstva)
Committee memberKrunoslav Aladić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Department of Food and Nutrition Research)
(Sub-department of Food Quality)
Osijek
Defense date and country2022-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Nutrition
Nutritional Science
Abstract
Cilj ovog istraživanja bio je odrediti masnokiselinski profil iz određenih vrsta makroalgi Jadranskog mora (Cystoseira corniculata, Ericaria amentacea, Dictyota fasciola, Sargassum hornschuchii, Codium vermilara) u svrhu otkrivanja potencijalne iskoristivosti u nutricionizmu i prehrambenoj industriji. Ekstrakcija ukupnih lipida provedena je metodom po Folch-u, nakon čega su transesterificirani u metilne estere masnih kiselina (FAME) koji su kao takvi analizirani pomoću plinske kromatografije sa plameno-ionizacijskim detektorom (GC-FID). Najveću zastupljenost u svim vrstama zauzela je palmitinska kiselina (C16:0), a iza nje u većini vrsta se ističu i izomeri oleinske kiseline (C18:1n9c+t). Od dvije najvažnije n-3 masne kiseline, identificirana je eikosapentaenska kiselina (C20:5n3), dok u ispitivanim uzorcima dokosaheksaenska kiselina (C22:6n6) nije detektirana. Najveći udio C20:5n3 utvrđen je kod vrste D. fasciola, a najmanji kod vrste C. vermilara. Rezultati ovog rada ukazuju na najbolji sadržaj polinezasićenih masnih kiselina (PUFA), omjer polinezasićenih i zasićenih masnih kiselina (PUFA/SFA) i indeks nezasićenosti (IU) kod vrste S. hornschuchii, dok je najpovoljniji indeks aterogenosti (IA) utvrđen kod C. vermilara, indeks trombogenosti (IT) kod D. fasciola i najpovoljniji hipokolesterolemijski/hiperkolesterolemijski omjer (HH) kod vrste C. corniculata. Rezultati provedenog eksperimentalnog rada ukazuju na vrlo male razlike u masnokiselinskom profilu ispitivanih vrsta te stoga one imaju sličan potencijal u nutricionizmu i prehrambenoj industriji.
Abstract (english)
The aim of this research was to determine the fatty acids profile of certain types of macroalgae from the Adriatic Sea (Cystoseira corniculata, Ericaria amentacea, Dictyota fasciola, Sargassum hornschuchii, Codium vermilara) in order to discover their potential in nutrition and the food industry. Total lipids were extracted using the Folch method, after which they were converted into fatty acid methyl esters (FAME), and as such were analysed using gas chromatography with flame ionization detector (GC-FID). Palmitic acid (C16:0) was the most represented in all species, followed by isomers of oleic acid (C18:1n9c+t) in most species. Only one of the two most important n-3 was identified, eicosapentaenoic acid (20:5n3), while docosahexaenoic acid (C22:6n6) was not detected in analysed samples. The highest percentage of C20:5n3 was found in the D. fasciola species, and the lowest in the C. vermilara species. The results of this work indicate the best content of polyunsaturated fatty acids (PUFA), polyunsaturated and saturated fatty acids ratio (PUFA/SFA), and unsaturation index (IU) in the species S. hornschuchii, while the most favourable atherogenic index (IA) was found in C. vermilara, thrombogenic index (IT) in D. fasciola and the most favourable hypocholesterolemic/hypercholesterolemic ratio (HH) in the species C. corniculata. The results of the conducted experimental work indicate very small differences in the fatty acid profile of the tested species and therefore they are found to have similar potential in nutrition and the food industry.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:370131
ProjectNumber: KK.01.1.1.01.0002
Title: Bioprospecting Jadranskog mora
Acronym: ByProExtract
Leader: Rozelindra Čož Rakovac
Jurisdiction: eu
Funder: Europska komisija
Funding stream: Kohezijski fond
Study programmeTitle: Food Science and Nutrition
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra nutricionizma i znanosti o hrani (magistar/magistra nutricionizma i znanosti o hrani)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) icon
Created on2022-09-28 08:52:53