Izolacija i karakterizacija fenolnih spojeva iz cvijeta i lista gloga

undergraduate thesis

• Title (english): Isolation of phenolic compounds from elderberry
• Author: Kristina Radoš
• Mentor: Senka Djaković (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Chemistry and Biochemistry); (Laboratory for Organic Chemistry); Zagreb
• Defense date and country: 2015-07-08, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Ekstrakcija je prvi i važan korak u izolaciji fenolnih spojeva i ne postoji jedinstveni standardni postupak ekstrakcije. U ovom radu provedena je ekstrakcija po Soxhlet-u, a dobiveni ekstrakt je pročišćen i razdvojen pomoću TLC na tri komponente koje su karakterizirane primjenom IR-spektroskopije čime je potvrđena prisutnost fenolnih spojeva u glogu. U ovom radu određena je i masena koncentracija ukupnih fenola u ekstraktu dobivenom ekstrakcijom po Soxhletu koja je iznosila 2166 mg GAE/100 g gloga što pokazuje uspješnost primjenjene metode ekstrakcije.

Abstract (english)

Extraction is the first and important step in the isolation of phenolic compounds and there is no uniform standard extraction procedure. Extraction in this work was carried out by Soxhlet extraction. The resulting extract was purified and separated by TLC on three components that are characterized by IR spectroscopy confirming the presence of phenolic compounds in hawthorn. In this work was also determined the mass concentration of total phenols in the extract obtained by Soxhlet extraction. Mass concentration of total phenols in hawthorn totaled 2166 mg GAE/100 g hawthorn what indicates how successful the implemented method of extraction was.

• Keywords: osušeni cvijet i list gloga; fenolni spojevi; Soxhlet ekstrakcija
• Keywords (english): dried flower and leaf of hawthorn; phenolic compounds; Soxhlet extraction
• Language: croatian
• URN:NBN: urn:nbn:hr:159:252969
• Study programme: Title: Food Technology; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka prehrambene tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-04-25 13:37:19