Utjecaj različitih metoda ekstrakcije na sastav bioaktivnih spojeva propolisa

undergraduate thesis

• Title (english): The influence of the different exstraction methods on the composition of bioactive compounds in propolis
• Author: Ivana Zorić
• Mentor: Marijana Hranjec (mentor)
• Committee member: Marijana Hranjec (predsjednik povjerenstva)
• Committee member: Maja Cindrić (član povjerenstva)
• Committee member: Kristina Starčević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2015-07-16, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry; Applied Chemistry

Abstract

U okviru ovog rada uspoređivani su ekstrakti dobiveni različitim metodama ekstrakcije
propolisa te njihov sastav i antioksidativna svojstva. Prema ranijim istraživanjima dokazana
su razna biološka djelovanja propolisa te se on od davnina koristi u ljekovite svrhe. Propolis
je ekstrahiran u različitim otapalima pri različitim reakcijskim uvjetima. Sastav ekstrakata
određen je spregnutom metodom plinska kromatografija – masena spektrometrija (GC-MS),
dok su ukupni polifenoli određeni metodom koja se bazira na Folin-Ciocalteu reagensu.
Antioksidativna svojstva određena su DPPH metodom.

Abstract (english)

In this study propolis extractsobtained from different extraction methodswere compared, as
well as theircontexture and antioxidative properties. Previously conducted research had
demonstrated various bioactive effects of propolis, and is therefore used in medicinal
purposes. Propolis was extracted in different solvents at different reaction conditions. The
composition of the extracts was determined by coupled method gas chromatography- mass
spectrometry (GC - MS), while total polyphenols particular method which is based on the
Folin-Ciocalteu reagent. The antioxidant properties are determined by DPPH method.

• Keywords: propolis; cvjetni prah; polifenoli; ekstrakcija; plinska kromatografija; masena spektrometrija; antioksidativna svojstva
• Keywords (english): propolis; pollen; polyphenols; extraction; gas chromatography; mass spectrometry; antioxidant properties
• Language: croatian
• URN:NBN: urn:nbn:hr:149:421815
• Study programme: Title: Chemical Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2016-09-16 14:01:04