The invention discloses bioprotein
sponge and a preparation method thereof. According to the characteristics that internal cells of a
human body and an
animal body adapt to
cell growth environments, the bioprotein is freezed into a dry
sponge shape through
freeze drying technology by utilizing intercellular substances as controlled-release carrieres of growth factors and acts on the trauma of the
human body or the
animal body in controlled-release medicament
feeding mode. The preparation method of the bioprotein
sponge changes the traditional preparation process, adopts S / D
virus inactivation, and adds protective agent to reduce probability of
virus cross infection of people and
livestock simultaneously. The CM cation chromatographic purification process improves purity of bioprotein, promotes stanching and tissue union effect of the bioprotein sponge and reduces clinical
side effect. An
ultrafiltration process is adopted to replace a
dialysis process, so that preparation period is shortened, activity of the bioprotein is protected, and production cost is reduced. A method of heating inactivation
virus replaces the method of
cobalt60
radiation sterilization, so that the fact that
radiation rays bring damage to products is avoided, the activity of the bioprotein is protected, and safe and reliable use of products in clinical application is achieved.