关键词: 淀粉, 载体, 酶固定化

Abstract: Starch was treated by a mixture of glucoamylase and amylase,and then was oxidized by sodium metaperiodate,to prepare high-powered strach-based carrier for immobilization of enzyme. The effects of different parameters including degree of hydrolysis,reaction time,temperture,pH,concentration of sodium metaperiodate and molar ratio of sodium metaperiodate to starch on the capability of the carrier were studied. The carrier has powerful capability of immobilizing of enzyme because of its powerful adsorption ability and a great amount of aldehyde groups.

Key words: starch, immobilization of enzyme, carrier