Abstract
A new carrier resin (FE-4611) was synthesized, on which α-amylase was immobilized. FE-4611 is a strongly hydrophilic resin of macroreticular type. α-Amylase was immobilized on FE-4611 and 3 species of Chitopearl. Continuous conversion of CDs into maltooligosaccharides with these kinds of immobilized a-amylase was investigated . The α-amylase immobilized on FE-4611 could keep up its effective performance over one month. This carrier resin bearing α-amylase was effectively rejuvenated for reuse by use of warm alkali solution . By contrast, α-amylase immobilized on Chitopearl lasted only for about two weeks . It was impossible to rejuvenate the enzyme immobilized on this carrier.
