title: Synthesis of a mesoporous functional copolymer bead carrier and its properties for glucoamylase immobilization.
abstract: A series of mesoporous and hydrophilic novel bead carriers containing epoxy groups were synthesized by modified inverse suspension polymerization. Glycidyl methacrylate and acryloyloxyethyl trimethyl ammonium chloride were used as the monomers, and divinyl benzene, allyl methacrylate, and ethylene glycol dimethacrylate as crosslinking agents, respectively. The resulting carriers were employed in the immobilization of glucoamylase (Glu) with covalent bond between epoxy groups and enzymes. The activity recovery of the three series of immobilized Glus could reach 76%, 79%, and 86%, respectively. The immobilized Glus exhibit excellent stability and reusability than that of the free ones.
authors.affiliation: Institute of Material Science and Engineering, Lanzhou University, Lanzhou 730000, China. baiyx@lzu.edu.cn
authors.forename: Yongxiao
authors.initials: Y
authors.lastname: Bai
authors.forename: Yanfeng
authors.initials: Y
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Lei
mesh_terms: D001704:Biopolymers / Q000737:chemistry*; D003432:Cross-Linking Reagents / Q000737:chemistry; D004795:Enzyme Stability; D004800:Enzymes, Immobilized / Q000737:chemistry*; D005087:Glucan 1,4-alpha-Glucosidase / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D016062:Porosity
chemical_list: D001704:Biopolymers; D003432:Cross-Linking Reagents; D004800:Enzymes, Immobilized; D005087:Glucan 1,4-alpha-Glucosidase