Primjena unaprijeđene metode ubrizgavanja u protok za određivanje polifenola u namirnicama

master's thesis

• Title (english): Use of enhanced flow-injection method for the determination of the total polyphenol contetnt in foods
• Author: Suzana Berend
• Mentor: Zorana Grabarić (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Chemistry and Biochemistry); (Laboratory for General and Inorganic Chemistry and Electroanalysis); Zagreb
• Defense date and country: 2006-03-03, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Food Technology

Abstract

Cilj ovog rada bio je razvijanje kontinuirane metode ubrizgavanja u protok za određivanje sadržaja ukupnih polifenola u namirnicama. Metoda omogućuje automatsku analizu različitih uzoraka brzinom protoka 55 uzoraka h-1 uz upotrebu galne kiseline kao standarda. U odnosu na "batch" metodu, ova metoda je visoko tolerantna prema najčešćim interferentima (SO2, reducirajući šećeri i askorbinska kiselina). Rezultati dobiveni predloženom metodom pokazali su relativno slaganje sa onima dobivenim referentnom Folin-Ciocalteau metodom.

Abstract (english)

The aim of this research was the development of a continuos, flow-injection method for the determination of total polyphenol content in foods. The method allows different types of samples to be analysed automatically at a rate of 55 samples per hour by using gallic acid as standard. The method is highly tolerant towards the most common interferences (SO2, reducing sugars and ascorbic acid) that occur with its batch counterpart. The results provided by the proposed method relatively agree with those obtained using the referent Folin-Ciocalteau method.

• Keywords: metoda ubrizgavanja u protok; sadržaj ukupnih polifenola; Folin-Ciocalteau metoda
• Keywords (english): flow-injection method; total polyphenol content; Folin-Ciocalteau method
• Language: croatian
• URN:NBN: urn:nbn:hr:159:246642
• Study programme: Title: Biotechnology; specializations in: Biochemical-Microbiology; Course: Biochemical-Microbiology; Study programme type: university; Study level: graduate; Academic / professional title: diplomirani inženjer biotehnologije; smjer biokemijsko-mikrobiološki (diplomirani inženjer biotehnologije; smjer biokemijsko-mikrobiološki)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-09-11 08:02:14