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master's thesis
Adsorpcija derivata kvercetina na ß-glukan
2017. urn:nbn:hr:109:117873
Kraljević, Šima
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Sub-department of Applied Chemistry and instrumental Methods
Engineering Chemistry

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Kraljević, Š. (2017). Adsorpcija derivata kvercetina na ß-glukan (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:117873

Kraljević, Šima. "Adsorpcija derivata kvercetina na ß-glukan." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2017. https://urn.nsk.hr/urn:nbn:hr:109:117873

Kraljević, Šima. "Adsorpcija derivata kvercetina na ß-glukan." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2017. https://urn.nsk.hr/urn:nbn:hr:109:117873

Kraljević, Š. (2017). 'Adsorpcija derivata kvercetina na ß-glukan', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 06 September 2024, https://urn.nsk.hr/urn:nbn:hr:109:117873

Kraljević Š. Adsorpcija derivata kvercetina na ß-glukan [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2017 [cited 2024 September 06] Available at: https://urn.nsk.hr/urn:nbn:hr:109:117873

Š. Kraljević, "Adsorpcija derivata kvercetina na ß-glukan", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:109:117873

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Metadata
TitleAdsorpcija derivata kvercetina na ß-glukan
Title (english)Quercetin derivatives adsorption onto β-glucan
AuthorŠima Kraljević
MentorLidija Jakobek Barron (mentor)
MentorPetra Matić (pomoć pri izradi, neposredni voditelj)
MBZ: 343773
Committee memberAna Bucić-Kojić (predsjednik povjerenstva)
Committee memberLidija Jakobek Barron (član povjerenstva)
Committee memberMirna Habuda-Stanić (član povjerenstva)
Committee memberIvica Strelec (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Sub-department of Applied Chemistry and instrumental Methods)
(Engineering Chemistry)
Osijek
Defense date and country2017-12-19, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Zadatak ovog rada bio je provesti eksperimente adsorpcije između β-glukana i odabranih derivata kvercetina: kvercetin-3-glukozida, kvercetin-3-galaktozida te kvercetin-3-ramnozida. Koncentracija neadsorbiranih derivata kvercetina nakon uspostavljanja ravnoteže (ce) određena je pomoću Folin-Ciocalteu metode. Izračunat je adsorpcijski kapacitet (qe). Eksperimentalni rezultati (ce i qe) su obrađeni nelinearnim i linearnim adsorpcijskim modelima (Freundlich, Langmuir i Dubinin-Radushkevich) kako bi se dobile konstante ovih modela (KF i 1/n kod Freundlicha, KL i gm kod Langmuira te qs i β kod Dubinin-Radushkevicha). Na osnovu dobivenih rezultata zaključeno je da su nelinearni modeli pokazali bolje slaganje s eksperimentalnim rezultatima u odnosu na linearne modele, te da je adsorpcija između β-glukana i derivata kvercetina favorizirana, a adsorpcijski kapacitet je bio nešto veći za kvercetin-3-glukozid. Moguće je da raspored -OH skupina na glikozidima ima utjecaja na proces adsorpcije.
Abstract (english)
The aim of this study was to conduct the adsorption experiments between β-glucan and selected quercetin derivatives: quercetin-3-glucoside, quercetin-3-galactoside and quercetin-3-rhamnoside. After reaching the adsorption equilibrium, the concentration of unadsorbed quercetin derivative (ce) was determined by the use of Folin-Ciocalteu method. The adsorption capacity was calculated (qe). Experimental results (ce and qe) were analysed with nonlinear and linear adsorption models (Freundlich, Langmuir and Dubinin-Radushkevich) in order to obtain the constants of these models (KF and 1/n for Freundlich, KL and qm for Langmuir, and qs and β for Dubinin-Radushkevich model). On the basis of the results it can be concluded that nonlinear models showed a better agreement with experimental results compared to the linear models, that adsorption between β-glucan and quercetin derivatives was favoured, and that adsorption capacity was a little bit higher for quercetin-3-glucoside. It is possible that the arrangement of -OH groups on glycoside part of molecules affects the adsorption process.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:117873
Study programmeTitle: Process Engineering
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka procesnog inženjerstva (magistar/magistra inženjer/inženjerka procesnog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2018-01-17 13:23:40