title: Distribution of saccharides and salts on amphoteric ion-exchange resin.
abstract: An amphoteric ion-exchange resin hardly shrank in 550 and 300 g/L glucose and sodium chloride solutions, respectively; however, the bed packed with a cation-exchange resin shrank considerably. From the distribution coefficients of some saccharides, the swelling pressure of the amphoteric ion-exchange resin was estimated to be 2.0 MPa at 25 °C. The distribution coefficients of glucose, galactose, fructose, and mannose were independent of their concentration and were about 0.621. On the other hand, the apparent distribution coefficients of NaF, NaCl, NaBr, NaI, LiCl, KCl, and CsCl largely depended on concentration. A model for the distribution of salts on the amphoteric resin was proposed, assuming an interaction between the anion of the salt and the positively charged fixed ions with binding constant B. The B values of the chloride salts were nearly the same (1.69-2.94 L/mol), while the values of the sodium salts were largely different depending on the anion.
authors.affiliation: a Division of Food Science and Biotechnology, Graduate School of Agriculture , Kyoto University , Kyoto , Japan.
authors.forename: Yuki
authors.initials: Y
authors.lastname: Sha
authors.affiliation: a Division of Food Science and Biotechnology, Graduate School of Agriculture , Kyoto University , Kyoto , Japan.
authors.forename: Ayako
authors.initials: A
authors.lastname: Hasegawa
authors.affiliation: a Division of Food Science and Biotechnology, Graduate School of Agriculture , Kyoto University , Kyoto , Japan.
authors.forename: Utano
authors.initials: U
authors.lastname: Aimoto
authors.affiliation: a Division of Food Science and Biotechnology, Graduate School of Agriculture , Kyoto University , Kyoto , Japan.
authors.forename: Shuji
authors.initials: S
authors.lastname: Adachi
mesh_terms: D000838:Anions / Q000737:chemistry; D002852:Chromatography, Ion Exchange; D005632:Fructose / Q000737:chemistry; D005690:Galactose / Q000737:chemistry; D005947:Glucose / Q000737:chemistry; D008358:Mannose / Q000737:chemistry; D012492:Salts / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: D000838:Anions; D012492:Salts; D012996:Solutions; D005632:Fructose; D012964:Sodium; D005947:Glucose; D008358:Mannose; D005690:Galactose
keywords: amphoteric ion-exchange resin; binding constant; distribution coefficient; saccharide; salt