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undergraduate thesis
Ekstrakcija eteričnih ulja iz citrusa
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:678221
Špiljak, Ivana
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Špiljak, I. (2020). Ekstrakcija eteričnih ulja iz citrusa (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:678221

Špiljak, Ivana. "Ekstrakcija eteričnih ulja iz citrusa." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:678221

Špiljak, Ivana. "Ekstrakcija eteričnih ulja iz citrusa." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:678221

Špiljak, I. (2020). 'Ekstrakcija eteričnih ulja iz citrusa', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:678221

Špiljak I. Ekstrakcija eteričnih ulja iz citrusa [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 December 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:678221

I. Špiljak, "Ekstrakcija eteričnih ulja iz citrusa", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:678221

Metadata
TitleEkstrakcija eteričnih ulja iz citrusa
Title (english)Extraction of essential oils from citruses
AuthorIvana Špiljak
MentorAleksandra Sander (mentor)
Committee memberAleksandra Sander (predsjednik povjerenstva)
Committee memberDajana Kučić Grgić (član povjerenstva)
Committee memberMaja Bival Štefan (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-09-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Eterična ulja citrusa su mješavina ponajviše hlapljivih komponenata poput terpena, mono- i seskviterpena, etera, estera, aldehida i ketona, koji su zaslužni za mirisna i bioaktivna svojstva takvih ulja. U ovom radu korištene su 3 vrste citrusa, limun (Citrus × limon), slatka naranča (Citrus × sinensis) i pomelo (Citrus grandis) iz kojih se pomoću metode hidrodestilacije i ekstrakcije n-heksanom izoliralo eterično ulje iz kore navedenih citrusa. Sastav ovih eteričnih ulja bio je analiziran tankoslojnom kromatografijom (TLC), plinskom kromatografijom s masenom spektrometrijom (GC-MS) i infracrvenom spektroskopijom (FT-IR). Utvrđeno je da su glavne komponente ovih ulja d-limonen, β-pinen, γ-terpinen, mircen i linalol. Na temelju rezultata d-limonen bio je glavna sastavnica ulja u postotcima od 60 do 90 posto. Sva ulja podvrgnuta su i mikrobiološkom ispitivanju na aktivnost mikroorganizama Escherichia coli, Bacillus subtilis i Candida lipolytica. Eterično ulje izolirano iz kore limuna pokazalo je najveće antimikrobno djelovanje na bakteriju i kvasac, međutim ni jedno eterično ulje nije pokazalo djelovanje na bakterijsku kulturu Escherichia coli.
Abstract (english)
Citrus essential oils are a mixture of mostly volatile components such as terpene, mono- and sesquiterpenes, ethers, esters, aldehydes and ketones, which are responsible for the fragrant and bioactive properties of such oils. Three types of citruses, lemon (Citrus × lemon), sweet orange (Citrus × sinensis) and pomelo (Citrus grandis) were used in the present study. The essential oils were extracted from the peel of these citrus fruits using the method of hydrodistillation and extraction with n-hexane. The composition of these essential oils was analyzed by thin layer chromatography (TLC), gas chromatography with mass spectrometry (GC-MS) and infrared spectroscopy (FT-IR). The main components of extracted oils were found to be d-limonene, β-pinene, γ-terpinene, myrcene and linalool. Based on the results, d-limonene was the major component of the oils ranging from 60 to 90 percent. All oils were also put to microbiological testing for the activity against microorganisms such as Escherichia coli, Bacillus subtilis and Candida lipolytica. The essential oil isolated from lemon peel showed the greatest antimicrobial activity against mentioned bacteria and yeast, however no essential oil showed activity against the bacterial culture of Escherichia coli.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:678221
Study programmeTitle: Environmental Engineering - Undergraduate study
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-05-09 08:26:31