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master's thesis
Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala
2018. urn:nbn:hr:109:150131
Martinović, Matea
Josip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
Department of Process Engineering
Sub-department of Bioprocess Engineering

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Martinović, M. (2018). Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY. Retrieved from https://urn.nsk.hr/urn:nbn:hr:109:150131

Martinović, Matea. "Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2018. https://urn.nsk.hr/urn:nbn:hr:109:150131

Martinović, Matea. "Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala." Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, 2018. https://urn.nsk.hr/urn:nbn:hr:109:150131

Martinović, M. (2018). 'Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala', Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, accessed 10 April 2024, https://urn.nsk.hr/urn:nbn:hr:109:150131

Martinović M. Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY; 2018 [cited 2024 April 10] Available at: https://urn.nsk.hr/urn:nbn:hr:109:150131

M. Martinović, "Ekstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala", Master's thesis, Josip Juraj Strossmayer University of Osijek, FACULTY OF FOOD TECHNOLOGY, Osijek, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:109:150131

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TitleEkstrakcija sintetskog bojila kongo crvenila s obojenog pivskog tropa upotrebom organskih i eutektičkih otapala
Title (english)The extraction of synthetic dye Congo red from dye-loaded brewers' spent grains using organic solvents and deep eutectic solvents
AuthorMatea Martinović
MentorNatalija Velić (mentor)
MentorValentina Bušić (komentor)
Committee memberDajana Gašo-Sokač (predsjednik povjerenstva)
Committee memberNatalija Velić (član povjerenstva)
Committee memberValentina Bušić (član povjerenstva)
Committee memberMarija Nujić (član povjerenstva)
GranterJosip Juraj Strossmayer University of Osijek
FACULTY OF FOOD TECHNOLOGY
(Department of Process Engineering)
(Sub-department of Bioprocess Engineering)
Osijek
Defense date and country2018-10-11, Croatia
Scientific / art field,
discipline and subdiscipline		BIOTECHNICAL SCIENCES
Food Technology
Abstract
Mnogi otpadni lignocelulozni materijali, poput pivskog tropa, pokazali su se kao dobri adsorbensi za uklanjanje sintetskih bojila iz vodenih otopina. Ipak, nakon procesa uklanjanja bojila zaostaje obojeni materijal kojeg je potrebno zbrinuti na odgovarajuć način prije odlaganja u okoliš. Prije zbrinjavanja može se provesti ekstrakcija (desorpcija) bojila s obojenog materijala, pomoću odgovarajućeg otapala. Cilj ovog rada bio je provesti ekstrakciju kongo crvenila s uzoraka obojenog pivskog tropa pomoću različitih monokomponentnih (polarnih protičnih, polarnih aprotičnih i nepolarnih) otapala, sustava višekomponentnih otapala te pomoću eutektičkih otapala na bazi kolin klorida. Od svih ispitanih skupina organskih otapala, polarna protična otapala pokazala su najveći učinak ekstrakcije. Iz skupine polarnih protičnih otapala najveći učinak ekstrakcije je pokazao metanol (97 %). Također je utvrđeno kako polarna aprotična i nepolarna otapala nisu djelotvorna u uklanjanju kongo crvenila s obojenog pivskog tropa. Prilikom ekstrakcije višekomponentnim otapalima najveći učinak ekstrakcije pokazala je smjesa otapala metanol : ACN : voda = 1 : 1 : 1. Najbolju učinkovitost ekstrakcije (53 %) od eutektičkih otapla pokazalo je otapalo kolin klorid : glicerol = 1 : 2. Eutektička otapala pokazalasu značajno manju učinkovitostekstrakcije od polarnih protičnih otapala.
Abstract (english)
Many waste lignocellulosic materials, like brewers' spent grains, proved to be efficient adsorbents for the removal of synthetic dyes from aqueous solutions. However, the dye-loaded materials remaining after the dye removal process, should not be directly discarded to the environment, but instead should be properly disposed of. Before the disposal, desorption (extraction) of dyes from a dye-loaded material can be performed, using the appropriate solvents. The aim of this work was to investigate the extraction of Congo red from dye-loaded brewers' spent grains using various monocomponent (polar protic, polar aprotic and nonpolar) solvents, multi-component solvent systems and choline chloride-based eutectic solvents. Of all the tested organic solvents, polar protic solvents exhibited the highest extraction efficiency. Methanol was the most efficient solvent from the polar protic solvents group, having the extraction efficiency of 97%. The extraction efficiency of polar aprotic and nonpolar solvents was very low. When extraction using multi-component solvent systems was performed, the most efficient proved to be the system of three solvents - methanol:ACN:water = 1:1:1. When eutectic solvents were used, the highest extraction efficiency of 53% was achieved using choline chloride:glycerol = 1:2. However, the extraction efficiency of eutectic solvents was far less than that of polar protic solvents.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:109:150131
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
Terms of useLicence In copyright icon
Created on2018-10-26 09:04:41