Abstract
AbstractIn this study, a polyethylene glycol (PEG)‐maleimide film was prepared by a thiol‐ene click reaction. The covalent immobilization of amylase was carried out onto the PEG‐maleimide based photo‐curable network via epoxy and C=O groups without any linker. The epoxy and carbonyl groups on the PEG backbone improved the affinity of the enzyme. The immobilization yield of amylase onto the film was 72.46%. The immobilization capacity was also determined as 313 mg/g. The thermal stability of amylase improved via covalent attachment. Immobilized amylase showed maximum activity at 40 °C and pH 6.5. The immobilized amylase continued to retain 66% of its initial activity after 30 days.
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