diplomsko delo
Tim Fortuna (Author), Gregor Marolt (Mentor)

Abstract

Fitinska kislina je naravna spojina, ki je prisotna predvsem v stročnicah, žitih, semenih in oreščkih, kjer je glavna zaloga fosforja. Potrebna je za več fizioloških funkcij, na človeka pa ima lahko tudi negativen vpliv. V diplomski nalogi sem določeval koncentracijo fitinske kisline in fosfatov v ekstraktih fermentirane moke z ionsko kromatografijo visoke ločljivosti (HPIC). Pred analizo sem iz vzorcev odstranil klorid z Ag/H kolonico. Preveril sem tudi kakšna je njena učinkovitost in kapaciteta ter kolikšen je izkoristek. S potenciometrično titracijo sem najprej standardiziral raztopino NaOH, nato pa še raztopino fitata. Preveril sem stabilnost pripravljenih standardnih raztopin.

Keywords

fitinska kislina;fitati;fosfati;HPIC;potenciometrična titracija;diplomske naloge;

Data

Language: Slovenian
Year of publishing:
Typology: 2.11 - Undergraduate Thesis
Organization: UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher: [T. Fortuna]
UDC: 543.544.14:543.554.4.08 (043.2)
COBISS: 171476995 Link will open in a new window
Views: 75
Downloads: 11
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Other data

Secondary language: English
Secondary title: Determination of phytic acid and phosphates in fermented flour extracts
Secondary abstract: Phytic acid is a natural compound found predominantly in legumes, cereals, seeds, and nuts, where it presents the majority of phosphate supplies. Phytic acid is required for several physiological functions, although it can have adverse health effects. In my diploma research work, I determined the concentration of phytic acid in fermented flour extracts according to the high-pressure ion chromatography (HPIC) method. Before conducting the analysis, I removed chloride from the samples using an Ag/H OnGuard cartridge. Furthermore, I studied the efficiency, capacity, and recovery of phytic acid. Using potentiometric titration, I standardised the sodium hydroxide (NaOH) solution before repeating the process with the phytate solution. Finally, I evaluated the stability of the prepared standardised solutions.
Secondary keywords: phytic acid;phytate;phosphate;high-pressure ion chromatography;potentiometric titration;Potenciometrija;Ionska kromatografija;Univerzitetna in visokošolska dela;
Type (COBISS): Bachelor thesis/paper
Study programme: 1000374
Embargo end date (OpenAIRE): 1970-01-01
Thesis comment: Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo, VSŠ Kemijska tehnologija
Pages: 48 str.
ID: 19912964