GLUCOSE AND GLUCURONIC-ACID INTERACTIONS WITH HYDROLYZED ALUMINUM(III)

Interaction of D-glucose and b-glucuronic acid and of hydrolysed alumi nium (III) has been studied in 0.6 M NaCl solution, Isolated solids we re analysed and studied by means of IR and C-13 NMR spectroscopy. Solu ble samples close to the precipitation boundary were examined with UV spectroscopy. Glucuronic acid showed higher affinity toward binding to the aluminium hydroxide matrix than glucose, It is concluded that glu cose is bound via hydroxyl groups on C(4) and C(6) atoms in alpha- and beta-pyranose forms. Glucuronic acid is bound in alpha- and beta-pyra nose forms via the carboxyl group and the hydroxyl group on the C(4) a tom.