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undergraduate thesis
Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2020. urn:nbn:hr:159:518912
Čermak, Dražena
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Chemistry and Biochemistry
Laboratory for Physical Chemistry and Corrosion

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

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Čermak, D. (2020). Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:518912

Čermak, Dražena. "Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2020. https://urn.nsk.hr/urn:nbn:hr:159:518912

Čermak, Dražena. "Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje." Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2020. https://urn.nsk.hr/urn:nbn:hr:159:518912

Čermak, D. (2020). 'Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje', Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 15 July 2024, https://urn.nsk.hr/urn:nbn:hr:159:518912

Čermak D. Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2020 [cited 2024 July 15] Available at: https://urn.nsk.hr/urn:nbn:hr:159:518912

D. Čermak, "Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje", Undergraduate thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:159:518912

Metadata
TitleUtjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu kadulje
Title (english)The effect of high voltage discharge extraction on the concentration of carotenoids in the sage precipitate
AuthorDražena Čermak
MentorFilip Šupljika (mentor)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Chemistry and Biochemistry)
(Laboratory for Physical Chemistry and Corrosion)
Zagreb
Defense date and country2020-06-15, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Nutrition
Abstract
Utjecaj ekstrakcije visokonaponskim pražnjenjem na koncentraciju karotenoida u talogu usitnjenih listova kadulje ispitan je pomoću ultraljubičaste i vidljive spektrofotometrije (UV-Vis spektrofotometrije). Ekstrakcija visokonaponskim pražnjenjem nova je nekonvencionalna zelena metoda koja poboljšava ekstrakciju bioaktivnih komponenata iz biljnih materijala. Prednost ove metode u tome je što se biljni materijal prilikom ekstrakcije znatno ne zagrijava pa ne dolazi to termičke degradacije osjetljivih bioaktivnih komponenti. Masena koncentracija ukupnih karotenoida, ksantofila i karotena u 90-postotnim metanolnim ekstraktima taloga kadulje, preostalim nakon tretiranja listova kadulje hladnom plazmom, te netretiranim uzorcima određena je primjenom Lichtenthalerovih jednadžbi nakon mjerenja apsorbancije na UV-Vis spektrofotometru. Pokazano je kako se djelovanjem visokonaponskog pražnjenja na kadulju u većini slučajeva smanjuje masena koncentracija karotenoida.
Abstract (english)
The effect of high voltage discharge extraction on the concentration of carotenoids in the sage leaves precipitate was examined using a UV/Vis spectrophotometry. High voltage discharge extraction is a new, unconventional, green method which increases the extraction of bioactive components from plant materials. The advantage of this exraction method is the fact that it does not heat up the plant materials and, therefore, it does not cause the degradation of bioactive components susceptible to high temperatures. Mass concentrations of total carotenoids, carotens and xantophylls in 90% methanol extracts of precipitates were determined by Lichtenthaler's equations after an apsorbance measurements using UV/Vis spectrophotometry. The results indicate that generally high voltage discharge extraction causes a reduction in mass concentration of carotenoids in plant materials.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:518912
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 conditionsOpen access
Terms of useLicence Attribution-NoDerivatives 4.0 International (CC BY-ND 4.0) icon
Created on2020-07-02 10:16:56