Preparation and Properties of Immobilized Glucoamylase on a Magnetically Anisotropic Carrier Comprising a Ferromagnetic Powder Coated by Albumin

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Abstract
Glucoamylase was immobilized by glutaraldehyde combined with albumin coated on the surface of a powder of SrFe2O4 as the carrier. This carrier obtained a magnetically anisotropic property under exposure to a static magnetic field. The carrier was able to oscillate and rotate in an alternating magnetic field. The rate of hydrolysis of starch to glucose increased in the alternating magnetic field. This is because the transport of molecules may be facilitated through the interface of the carrier surface and solution by oscillation.