Study of the separation of lactose, lactulose and galactose by liquid chromatography using cationic ion-exchange resin columns

Autor: Laurence Guihard, Kamel Dendene, Bernard Bariou, B. Balannec
Přispěvatelé: ProdInra, Migration, Unité sous contrat procédés de séparation, Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR), Institut National de la Recherche Agronomique (INRA)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)
Rok vydání: 1995
Předmět:
Zdroj: Chromatographia
Chromatographia, 1995, 41 (9-10), pp.561-567
Chromatographia, Springer Verlag, 1995, 41 (9-10), pp.561-567
ISSN: 1612-1112
0009-5893
DOI: 10.1007/bf02269720
Popis: A strong acid cation-exchange resin, Dowex AG50W-X8 in potassium, calcium or sodium form, with water as eluent, has been used to separate three sugars (lactose, lactulose and galactose). The linearity of lactulose equilibrium isotherms was verified. Thermodynamic and kinetic parameters were thus determined by the moment method. Evaluation of the parameters revealed in this work can be considered as the first step in scaling up the process towards industrial use. On the other hand, the equilibrium stage model, which takes mass transfer resistance into account, is shown to provide a fair representation of the system's behaviour.
Databáze: OpenAIRE