Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer

In sugar industry, there is a problem of the presence of undesirable macromolecules such as pectins in sugar beet juice. Separation of these compounds is done mostly by CaO. Calcium may cause undesirable process of alkalization of soil in the near environment of the sugar factory. The th...

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Main Authors: Kuljanin Tatjana A., Jevrić Lidija R., Ćurčić Biljana Lj., Nićetin Milica R., Filipović Vladimir S., Grbić Jasna P.
Format: Article
Language:English
Published: Association of Chemical Engineers of Serbia 2014-01-01
Series:Hemijska Industrija
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/0367-598X/2014/0367-598X1300032K.pdf
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author Kuljanin Tatjana A.
Jevrić Lidija R.
Ćurčić Biljana Lj.
Nićetin Milica R.
Filipović Vladimir S.
Grbić Jasna P.
author_facet Kuljanin Tatjana A.
Jevrić Lidija R.
Ćurčić Biljana Lj.
Nićetin Milica R.
Filipović Vladimir S.
Grbić Jasna P.
author_sort Kuljanin Tatjana A.
collection DOAJ
description In sugar industry, there is a problem of the presence of undesirable macromolecules such as pectins in sugar beet juice. Separation of these compounds is done mostly by CaO. Calcium may cause undesirable process of alkalization of soil in the near environment of the sugar factory. The theoretical basis of new juice purificatin method based on the application of Al2(SO4)3, CaSO4 and their mixtures are presented. Two model solutions of pectin (0.1 % w/w) are investigated using a method of measuring zeta potential. Pure salts Al2(SO4)3 and CaSO4, showed better binding properties with the pectin than mixtures. Amount of all studied pure salts and mixtures of Al3+ and Ca2+ ions were significantly less (142 - 710 mg/gpectin) than the average amount of CaO used in classical process (about 9 g/gpectin). Mechanism of discharge of pectin macromolecules in the presence of mixtures of these ions using a model of double electric layer are suggested.
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spelling doaj.art-c997f1340857499baa2c7a810fa526922022-12-21T23:46:42ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2217-74262014-01-01681899710.2298/HEMIND121214032K0367-598X1300032KAluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layerKuljanin Tatjana A.0Jevrić Lidija R.1Ćurčić Biljana Lj.2Nićetin Milica R.3Filipović Vladimir S.4Grbić Jasna P.5Faculty of Technology, Novi SadFaculty of Technology, Novi SadFaculty of Technology, Novi SadFaculty of Technology, Novi SadFaculty of Technology, Novi SadInstitute for Food Technology, Novi SadIn sugar industry, there is a problem of the presence of undesirable macromolecules such as pectins in sugar beet juice. Separation of these compounds is done mostly by CaO. Calcium may cause undesirable process of alkalization of soil in the near environment of the sugar factory. The theoretical basis of new juice purificatin method based on the application of Al2(SO4)3, CaSO4 and their mixtures are presented. Two model solutions of pectin (0.1 % w/w) are investigated using a method of measuring zeta potential. Pure salts Al2(SO4)3 and CaSO4, showed better binding properties with the pectin than mixtures. Amount of all studied pure salts and mixtures of Al3+ and Ca2+ ions were significantly less (142 - 710 mg/gpectin) than the average amount of CaO used in classical process (about 9 g/gpectin). Mechanism of discharge of pectin macromolecules in the presence of mixtures of these ions using a model of double electric layer are suggested.http://www.doiserbia.nb.rs/img/doi/0367-598X/2014/0367-598X1300032K.pdfpectinsugar beetAl2(SO4)3CaSO4Zeta potentialdouble electric layer
spellingShingle Kuljanin Tatjana A.
Jevrić Lidija R.
Ćurčić Biljana Lj.
Nićetin Milica R.
Filipović Vladimir S.
Grbić Jasna P.
Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer
Hemijska Industrija
pectin
sugar beet
Al2(SO4)3
CaSO4
Zeta potential
double electric layer
title Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer
title_full Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer
title_fullStr Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer
title_full_unstemmed Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer
title_short Aluminium and calcium ions binding to pectin in sugar beet juice: Model of electrical double layer
title_sort aluminium and calcium ions binding to pectin in sugar beet juice model of electrical double layer
topic pectin
sugar beet
Al2(SO4)3
CaSO4
Zeta potential
double electric layer
url http://www.doiserbia.nb.rs/img/doi/0367-598X/2014/0367-598X1300032K.pdf
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