| 摘要 |
The spherical biocatalyst consists of immobilised biologically active material and an ionotropic gel-like material, the matrix containing TiO2 which has a particle diameter of 0.1 to 1 mu m. The matrix consists of biopolymers and enzymes, microorganisms or cells are used as biologically active material. The biocatalyst is prepared by mixing an aqueous solution of the substance forming the matrix with 7 to 35% by weight of TiO2, dispersing 0.1 to 20% by weight of biologically active material in this mixture, degassing the dispersion at a pressure of 800 to 10 mbar and adding the degassed dispersion dropwise from a nozzle to a precipitation bath. |
