抄録
Efficient hydrolysis of starch is one of the important reactions in various applications such as bio-ethanol production. Biopolymer membrane immobilizing glucoamylase which hydrolyze polysaccharide such as starch was successfully prepared. Hydrolyzing characteristics of commercial glucoamylase were first evaluated in batch process. Next, the two types of membrane immobilizing glucoamylase were investigated. One is the membrane prepared from calcium alginate and gelatin immobilizing glucoamylase with chemical cross-link using glutaraldehyde. Another is the membrane composed of calcium alginate and chitosan immobilizing glucoamylase with ionic interaction and with physical fixing in the polyelectrolyte-cross-linked hybrid polymer network.
