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undergraduate thesis
Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus)
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2012. urn:nbn:hr:159:357482
Ilić, Ana
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Food Engineering
Laboratory for Technology of Fruits and Vegetables Preservation and Processing

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

Cite this document

Ilić, A. (2012). Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus) (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:357482

Ilić, Ana. "Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus)." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2012. https://urn.nsk.hr/urn:nbn:hr:159:357482

Ilić, Ana. "Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus)." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2012. https://urn.nsk.hr/urn:nbn:hr:159:357482

Ilić, A. (2012). 'Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus)', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 30 November 2024, https://urn.nsk.hr/urn:nbn:hr:159:357482

Ilić A. Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus) [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2012 [cited 2024 November 30] Available at: https://urn.nsk.hr/urn:nbn:hr:159:357482

A. Ilić, "Biološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus)", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2012. Available at: https://urn.nsk.hr/urn:nbn:hr:159:357482

Metadata
TitleBiološki aktivni spojevi liofilizirane pulpe i sjemenki kiwana (cucumis metuliferus)
Title (english)Biologically active compounds of freeze-dried pulp and seed of kiwano (cucumis metuliferus)
AuthorAna Ilić
MentorVerica Dragović Uzelac (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Food Engineering)
(Laboratory for Technology of Fruits and Vegetables Preservation and Processing)
Zagreb
Defense date and country2012-09-13, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Nutrition
Abstract
Kiwano (Cucumis metuliferus) je biljka koja pripada porodici Cucurbitaceae te je njen plod bogat različitim biološkim aktivnim spojevima. Cilj ovog rada je bio odrediti koncentraciju ukupnih fenola, flavan-3-ola i antioksidacijski kapacitete u ekstraktima liofilizirane pulpe i sjemenki kiwana primjenom različitih otapala kako bi se ustvrdilo s kojim se postiže najbolji ekstrakcijski kapacitete te utvrditi postoji li korelacija između antioksidacijskog kapaciteta i koncentracije fenolnih spojeva. Određivanje ukupnih fenola i flavan-3-ola provedeno je spektrofotometrijskim metodama, a za određivanje antioksidacijskog kapaciteta se koristila FRAP metoda. Najbolji ekstrakcijski kapacitet izolacije ukupnih fenola iz liofilizirane pulpe i sjemenki ostvaren je primjeno 80%-tne vodene otopine etanola, dok za izolaciju flavan-3-ola iz liofilizirane pulpe i sjemenki kiwana je 80% vodena otopina acetona. Najveći antioksidacijski kapacitet u liofiliziranoj pulpi te sjemenkama kiwana određen je u ekstraktima dobivenim s 80% vodenom otopinom acetonitrila. Antioksidacijski kapacitet nije u korelaciji s koncentracijom fenolnih spojeva.
Abstract (english)
Kiwano (Cucumis metuliferus) is a plant that belongs to the family Cucurbitaceae and its fruit abundant variety of biologically active compounds. The aim of this study was to determine the concentration of total phenolics, flavan-3-ols and antioxidant capacity in extracts of freeze-dried pulp and seeds of kiwano using different solvents to determine with whom to obtain maximum extraction capacity and to determine if there is a correlation between the antioxidant capacity and concentration of phenolic compounds. Determination of total phenols and flavan-3-ol was carried out using spectrophotometric methods for the determination of antioxidant capacity by FRAP method was used. The best extraction capacity isolation of total phenols from freeze-dried pulp and seeds realized by applying 80% aqueous ethanol, and the isolation of flavan-3-ols from freeze-dried pulp and seeds of kiwano a 80% aqueous acetone. Highest antioxidant capacity of freeze-dried pulp and seeds of kiwano determined in extracts obtained with 80% aqueous acetonitrile. Antioxidant capacity was not correlated with the concentration of phenolic compounds.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:357482
Study programmeTitle: Nutrition
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) nutricionizma)
Type of resourceText
File originBorn digital
Access conditionsAccess restricted to students and staff of home institution
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Created on2017-05-15 09:32:45