Original scientific paper
https://doi.org/10.51558/2232-7568.2022.15.2.25
Possibility of bleaching sunflower oil with synthetic zeolite
Zoran Petrović
; University of East Sarajevo, Faculty of Technology Zvornik, Karakaj 34a, 75400 Zvornik, Bosnia and Herzegovina
Jelena Mihajlović
; University of East Sarajevo, Faculty of Technology Zvornik, Karakaj 34a, 75400 Zvornik, Bosnia and Herzegovina
Tatjana Botić
orcid.org/0000-0002-9158-3082
; University of Banja Luka, Faculty of Technology, Vojvode Stepe Stepanović 75a, 78000 Banja Luka, Bosnia and Herzegovina
Dragica Lazić
orcid.org/0000-0001-5251-6701
; University of East Sarajevo, Faculty of Technology Zvornik, Karakaj 34a, 75400 Zvornik, Bosnia and Herzegovina
Amir Fazlić
; University of Sarajevo, Faculty of Science, Zmaja od Bosne 33-35, 71000 Sarajevo, Bosnia and Herzegovina
Aleksandar Ćebić
; Zeochem d.o.o., Karakaj 229а, 75400 Zvornik, Bosnia and Herzegovina
Abstract
In this paper, the possibilities and effects of using domestic industrially produced zeolite for bleaching crude sunflower oil, compared to imported commercial bleaching earth, were examined. The parameters of the bleaching process in laboratory conditions were: temperature 95°C, contact time 30 min, and mass fractions of bleaching agent in oil: 0.2, 1, 2 and 3%. The following methods were used to characterize the bleaching agents: XRD, FTIR, BET and SEM/EDS. The bleaching efficiency parameters were determined by laboratory methods prescribed by the relevant ordinance on edible vegetable oils, and included: soap content, peroxide value and fatty acid composition. The results of the research showed that the effects of bleaching sunflower oil with synthetic zeolite are similar to the effects of bleaching with imported commercial bleaching earth, with the former showing a slightly higher effectiveness in reducing the peroxide value.
Keywords
sunflower oil,oil bleaching,synthetic zeolite,bleaching earth
Hrčak ID:
294955
URI
Publication date:
27.2.2023.
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