Naslov
Two parameter adsorption isotherm models of polyphenol adsorption onto β-glucan

Autori
Krivak, Petra ; Jakobek, Lidija

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Book of Abstract "2nd International congress of chemists and chemical engineers of Bosnia and Herzegovina" / Korać, Fehim ; Maksimović, Milka ; Sofić, Emin ; Galijašević, Semira ; Avdić, Nurudin - Sarajevo : Society of Chemists and Technologists of Canton Sarajevo, Faculty of Science, University of Sarajevo, 2016, 127-127

Skup
"2nd International congress of chemists and chemical engineers of Bosnia and Herzegovina"

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 21.10.2016. - 23.10.2016

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Adsorption ; polyphenols ; β-glucan ; adsorption isotherm models

Sažetak
Many studies have shown that polyphenols can interact with various food ingredients such as lipids, proteins and dietary fibers and these interactions can affect polyphenol bioactivities. The aim of this study was to obtain information about interactions between polyphenols (phloretin, phloridzin and cyanidin-3-galactoside) and β-glucan (dietary fiber) by studying adsorption experiments. Model solutions consisted of different concentrations of polyphenols and β-glucan and adsorption was carried out 16 hours at 25°C. Unadsorbed polyphenols were separated from adsorbed by ultrafiltration and their concentrations were determined by spectrophotometric Folin-Ciocalteu method. Experimental results were modelled with two parameters adsorption isotherm models (Freundlich's, Langmuir's, Dubinin-Radushkevich's, Tempkin's and Hill's models). The results showed that adsorption was favorized between all polyphenols and β-glucan, especially between phloridzin and β-glucan. All polyphenols were physically bonded onto β-glucan. Phloretin showed the highest adsorption capacity.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA