Immobilized enzyme is a technology that has developed rapidly since 1960s. The researchers of Northeast Agricultural University adopted the double fixation method, that is, glutaraldehyde was used as

Immobilized enzyme is a technology that has developed rapidly since 1960s. The researchers of Northeast Agricultural University adopted the double fixation method, that is, glutaraldehyde was used as the material. (1) Immobilized enzyme has stronger adaptability to temperature change and wider application range than free enzyme.

(2)3%? When the concentration of sodium alginate is low, the embedding is not tight, the enzyme molecules are easy to leak out and the quantity is insufficient.

(3)3

(4) The enzyme molecule is very small, and it is easy to leak from the embedding material.