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master's thesis
Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. urn:nbn:hr:159:007152
Kovačec, Lucija
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for drying Technologies and monitoring of biologically active compounds

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

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Kovačec, L. (2023). Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:007152

Kovačec, Lucija. "Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:007152

Kovačec, Lucija. "Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2023. https://urn.nsk.hr/urn:nbn:hr:159:007152

Kovačec, L. (2023). 'Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 17 January 2025, https://urn.nsk.hr/urn:nbn:hr:159:007152

Kovačec L. Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2023 [cited 2025 January 17] Available at: https://urn.nsk.hr/urn:nbn:hr:159:007152

L. Kovačec, "Utjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:159:007152

Metadata
TitleUtjecaj tehnike i parametara ekstrakcije na prinos pigmenata iz algi Jadranskog mora
Title (english)Influence of extraction technique and parameters on the yield of pigments from algae of the Adriatic Sea
AuthorLucija Kovačec
MentorZoran Zorić (mentor)
MentorZrinka Čošić (pomoć pri izradi, neposredni voditelj)
Committee memberSandra Balbino (predsjednik povjerenstva)
Committee memberIvona Elez Garofulić (član povjerenstva)
Committee memberMaja Repajić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for drying Technologies and monitoring of biologically active compounds)
Zagreb
Defense date and country2023-05-25, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Alge predstavljaju izvor mnogih bioaktivnih spojeva kojima se pripisuju brojni pozitivni učinci na zdravlje, a jednu od značajnijih skupina bioaktivnih molekula čine pigmenti klorofili i karotenoidi. Cilj ovog istraživanja bio je odrediti utjecaj tehnike ekstrakcije, snage, trajanja i temperature ekstrakcije na prinos klorofila i karotenoida iz pet različitih vrsta algi (Dictyota fasciola, Dictyota dichotoma, Cutleria multifida, Fucus virsoides i Dasycladus vermicularis) te utvrditi optimalne parametre ekstrakcije pri kojima se dobivaju najveći prinosi pigmenata. Ekstrakcija se provela primjenom ultrazvuka i mikrovalova, a obje tehnike provele su se korištenjem 96 %-tnog etanola kao ekstrakcijskog otapala pri 30 ºC, 25 minuta i 530 W te pri 50 C, 30 minuta i 400 W. Udjeli pigmenata određeni su visokoučinkovitom tekućinskom kromatografijom. Rezultati su pokazali da su alge Dictyota dichotoma i Dictyota fasciola vrlo dobar izvor pigmenata te da su mikrovalovi pokazali bolji učinak na prinos pigmenata, dok su učinci ostalih parametara ovisili o vrsti alge.
Abstract (english)
Algae are the source of many bioactive molecules and one of the most significant groups of bioactive molecules are compounds from chlorophyll and carotenoid groups. The aim of this research was to determine the influence of extraction technique, power, duration and temperature on the yield of chlorophyll and carotenoids from five types of algae (Dictyota fasciola, Dictyota dichotoma, Cutleria multifida, Fucus virsoides and Dasycladus vermicularis) and to determine the optimal extraction parameters. Extraction was carried out using ultrasound and microwaves, using 96 % ethanol, at 30 ºC, 25 minutes and 530 W and at 50 ºC, 30 minutes and 400 W. The concentrations of pigments were determined with high-performance liquid chromatography. The results have shown that Dictyota dichotoma and Dictyota fasciola are very good sources of pigments and that microwaves had a better effect on the yield of pigments, while the effects of other parameters depended on the type of algae.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:007152
Study programmeTitle: Food Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka prehrambenog inženjerstva (magistar/magistra inženjer/inženjerka prehrambenog 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 on2024-05-15 09:21:54