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master's thesis
Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. urn:nbn:hr:159:355692
Marić, Antea
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

Cite this document

Marić, A. (2022). Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:355692

Marić, Antea. "Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. https://urn.nsk.hr/urn:nbn:hr:159:355692

Marić, Antea. "Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2022. https://urn.nsk.hr/urn:nbn:hr:159:355692

Marić, A. (2022). 'Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 22 November 2024, https://urn.nsk.hr/urn:nbn:hr:159:355692

Marić A. Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2022 [cited 2024 November 22] Available at: https://urn.nsk.hr/urn:nbn:hr:159:355692

A. Marić, "Ultrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:159:355692

Metadata
TitleUltrazvukom potpomognuta ekstrakcija bioaktivnih molekula ploda pasjeg trna
Title (english)Ultrasound assisted extraction of bioactive molecules of sea-buckthorn fruit
AuthorAntea Marić
MentorSandra Pedisić (mentor)
Committee memberMaja Repajić (predsjednik povjerenstva)
Committee memberSandra Balbino (član povjerenstva)
Committee memberZoran Zorić (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 country2022-07-15, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Cilj ovog istraživanja bio je utvrditi utjecaj ultrazvukom potpomognute ekstrakcije (UAE) primjenom različitih otapala (30 i 70 %-tna vodena otopina etanola, n-heksan i aceton) i vremena ekstrakcije (20, 30 i 40 min) na sadržaj hidrofilnih i lipofilnih bioaktivnih molekula (BM) plodova pasjeg trna (Hippophae rhamnoides) te odrediti njihovu antioksidacijsku aktivnost (AA). Najviši udjeli ukupnih fenolih spojeva određeni su u sorti „Ascola“, a najzastupljeniji spoj bio je flavonol izoramnetin-3-heksozid (69,73 g 100 gˉ¹ s. tv.) te vitamin C (289 mg 100 gˉ¹ s.tv.). Najviši udjeli ukupnih karotenoida određeni su u sorti „Leikora“ (73,61 mg 100 gˉ¹ s. tv.), a najzastupljeniji je bio lutein palmitat (21,85 mg 100 gˉ¹ s. tv.). U sorti „Leikora“ određena je veća AA (2755,95 μmol TE 100 gˉ¹ s. tv.). Bolja učinkovitost UAE hidrofilnih BM postignuta je primjenom 70 %-tne vodene otopine etanola i vremena od 20 min, a lipofilnih primjenom acetona i vremena od 30 min.
Abstract (english)
The aim of this study was to evaluate the influence of ultrasound assisted extraction (UAE) using different solvents (30 and 70% ethanol, n-hexane and acetone) and extraction time (20, 30 and 40 min) on the content of hydrophilic and lipophilic bioactive molecules (BM) of sea-buckthorn fruit (Hippophae rhamnoides) and to determine the antioxidant activity (AA). The higher total phenolic content was found in the variety “Ascola”, and isorhamnetin-3- hexoside (69.73 mg 100 gˉ¹ dm) and vitamin C (289 mg 100 gˉ¹ dm) were the most abundant. The higher carotenoid content was determined in variety “Leicora” (73,61 mg 100 gˉ¹ dm) dominated by lutein palmitate (21.85 mg 100 gˉ¹ dm) as well as higher AA (2755.95 μmol TE 100 gˉ¹ dm). Better UAE efficiency for hydrophilic BM was obtained by using 70% ethanol as solvent and extraction time of 20 min and acetone and 30 min for lipophilic BM.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:355692
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 on2023-07-21 11:50:59