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master's thesis
Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja
Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology, 2024. urn:nbn:hr:159:188510
Barić, Doris
University of Zagreb
Faculty of Food Technology and Biotechnology
Department of Chemistry and Biochemistry
Laboratory for Analytical Chemistry

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

Cite this document

Barić, D. (2024). Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja (Master's thesis). Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:159:188510

Barić, Doris. "Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2024. https://urn.nsk.hr/urn:nbn:hr:159:188510

Barić, Doris. "Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja." Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, 2024. https://urn.nsk.hr/urn:nbn:hr:159:188510

Barić, D. (2024). 'Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja', Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, accessed 26 December 2024, https://urn.nsk.hr/urn:nbn:hr:159:188510

Barić D. Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja [Master's thesis]. Zagreb: University of Zagreb, Faculty of Food Technology and Biotechnology; 2024 [cited 2024 December 26] Available at: https://urn.nsk.hr/urn:nbn:hr:159:188510

D. Barić, "Praćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja", Master's thesis, University of Zagreb, Faculty of Food Technology and Biotechnology, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:159:188510

Metadata
TitlePraćenje udjela fenolnih spojeva i antioksidacijske aktivnosti u hidrolatima i eteričnim uljima odabranog samoniklog bilja
Title (english)Monitoring the proportion of phenolic compounds and antioxidant activity in the hydrolates and essential oils of selected wild plants
AuthorDoris Barić
MentorMaja Dent (mentor)
Committee memberAntonija Trontel (predsjednik povjerenstva)
Committee memberKristina Radošević (član povjerenstva)
Committee memberMarina Cvjetko Bubalo (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Food Technology and Biotechnology
(Department of Chemistry and Biochemistry)
(Laboratory for Analytical Chemistry)
Zagreb
Defense date and country2024-09-23, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Biotechnology
Abstract
U ovom radu istražen je fenolni sastav hidrolata i antioksidacijska aktivnost hidrolata i eteričnih ulja ružmarina, lovora, bosiljka, kadulje i komorača kroz vremenski period od 90 dana. Nakon provedene vodene destilacije po Clevengeru i odvajanja eteričnih ulja i hidrolata ružmarina, lovora, bosiljka, kadulje i komorača, uzorci se čuvani u staklenoj ambalaži pri sobnoj temperaturi kroz 90 dana. Nakon određenog broja dana čuvanja (0., 7., 14., 21., 30., 60. i 90. dan) spektrofotometrijski su određeni maseni udjeli ukupnih fenolnih spojeva u hidrolatima i antioksidacijska aktivnost (FRAP i DPPH metodom) u hidrolatima i eteričnim uljima. Dobiveni rezultati su pokazali pad masenog udjela ukupnih fenolnih spojeva u hidrolatima ružmarina, lovora, bosiljka, kadulje i komorača nakon 21. dana, a kadulje nakon 7. dana te smanjenja antioksidacijske aktivnosti u hidrolatima i eteričnim uljima nakon 7. dana, a bosiljka i kadulje nakon 21. i 30. dana.
Abstract (english)
In this paper, the phenolic composition of hydrolates and antioxidant activity of hydrolates and essential oils of rosemary, bay laurel, basil, sage and fennel were investigated over a period of 90 days. After hydrodistillation according to Clevenger and separation of essential oils and hydrolates of rosemary, bay laurel, basil, sage and fennel, the samples are stored in glass containers at room temperature for 90 days. After a certain number of days of storage (0, 7, 14, 21, 30, 60 and 90 days), the mass fractions of total phenolic compounds in the hydrolates and the antioxidant activity (FRAP and DPPH method) in the hydrolates and essential oils were determined spectrophotometrically. The obtained results showed a decrease in the mass fraction of total phenolic compounds in hydrolates of rosemary, bay laurel, basil, sage and fennel after 21 days, and sage after 7 days, and a decrease in antioxidant activity in hydrolates and essential oils after 7 days, and basil and sage after 21 and 30 days.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:159:188510
Study programmeTitle: Bioprocess Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka bioprocesnog inženjerstva (magistar/magistra inženjer/inženjerka bioprocesnog 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 on2024-10-21 12:32:58