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https://open.uns.ac.rs/handle/123456789/7251
Nаziv: | Aluminium and calcium ions binding to pectin in sugar beet juice - Model of electrical double layer | Аutоri: | Kuljanin, Tatjana Jevrić, Lidija Lončar (Ćurčić), Biljana Nićetin, Milica Filipović, Vladimir Grbić, Jasna |
Dаtum izdаvаnjа: | 14-апр-2014 | Izdаvаč: | Belgrade: Association of the Chemical Engineers of Serbia | Čаsоpis: | Hemijska Industrija | Sažetak: | In sugar industry, there is a problem with the presence of undesirable macromolecules such as pectins in sugar beet juice. Removal of these compounds is done mostly by CaO. Calcium may cause undesirable process of alkalization of soil in the proximity of 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 method of measuring zeta potential. Pure salts Al2(SO4)3 and CaSO4, showed better binding with pectin than mixtures. Amount of all studied pure salts and mixtures of Al3+ and Ca2+ 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 is suggested. | URI: | https://open.uns.ac.rs/handle/123456789/7251 | ISSN: | 0367598X | DOI: | 10.2298/HEMIND121214032K |
Nаlаzi sе u kоlеkciјаmа: | TF Publikacije/Publications |
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