Pregled bibliografske jedinice broj: 987815
Thermodynamics of anthocyanins adsorption onto β- glucan
Thermodynamics of anthocyanins adsorption onto β- glucan // Book of abstract 18. Ružička days "Today science- tomorrow industry" / Jukić, Ante (ur.).
Zagreb : Osijek: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2020. str. 109-109 (poster, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 987815 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Thermodynamics of anthocyanins adsorption onto β-
glucan
Autori
Matić, Petra ; Jakobek, Lidija
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Book of abstract 18. Ružička days "Today science- tomorrow industry"
/ Jukić, Ante - Zagreb : Osijek : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI) ; Prehrambeno tehnološki fakultet Sveučilišta Josipa Jurja Strossmayera u Osijeku, 2020, 109-109
ISBN
978-953-7005-72-6
Skup
18. Ružičkini dani "Danas znanost - sutra industrija"
Mjesto i datum
Vukovar, Hrvatska, 16.09.2020. - 18.09.2020
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
adsorption ; anthocyanins ; β-glucan ; Langmuir ; thermodynamic
Sažetak
The aim of this work is to obtain information about interactions between polyphenols and β- glucan through thermodynamic parameters. It was shown that polyphenolic compounds can interact with various food ingredients such as dietary fibers. Interactions can be studied through adsorption process. After the adsorption process conducted on different temperatures the thermodynamic parameters can be calculated. In the present study, the adsorption of anthocyanins (cyanidin-3-glucoside and cyanidin-3-galactoside) onto dietary fiber (β-glucan) is conducted. Adsorption is carried out at different temperatutes (25 °C, 37 °C, 45 °C and pH 5.5 for 16 h) in order to obtain thermodynamic parameters (standard reaction Gibbs energy (ΔG°), standard reaction enthalpy (ΔH°) and standard reaction entropy (ΔS°)). The non-linear Langmuir model is applied in order to analyze the data and to obtain the Langmuir constant KL which was used for the calculation of thermodynamic parameters. The results showed that cyanidin-3-glucoside adsorbed on β-glucan in higher amount then cyanidin-3- galactoside at all three temperatures. Furthermore, ΔS° was positive for both anthocyanins which supports a spontaneous processes. ΔH° was also positive which would be indicative of an endothermic reaction.
Izvorni jezik
Engleski
Znanstvena područja
Prehrambena tehnologija
POVEZANOST RADA
Projekti:
HRZZ-IP-2016-06-6777 - Utjecaj prehrambenih vlakana na bioraspoloživost polifenola istraživanjem adsorpcije i simuliranih probavnih procesa, in vitro (BIO-POLIFENOL) (Jakobek Barron, Lidija, HRZZ ) ( CroRIS)
Ustanove:
Prehrambeno-tehnološki fakultet, Osijek
