FACILITATED TRANSPORT OF CARBOHYDRATES VIA COMPLEXATION WITH BORATE ION FIXED ON AN ANION-EXCHANGE MEMBRANE

The transport of sugar was facilitated via complexation with berate io n fixed on an anion-exchange membrane. The sugar was highly distribute d on the membrane and was transported by the carrier-relay mechanism. The flux across the berate ion type membrane increased with increasing concentration but became constant at a lower flux than across a chlor ide ion type membrane. Sugars were selectively transported and the per meability of the sugar depends on its distribution in the membrane.