| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for preparing high purity gelatin in a short period of time, in high yield and at low cost. SOLUTION: A method for preparing gelatin comprises providing a collagen- containing material; desalting the collagen-containing material to form ossein; and then adding an enzyme solution containing a protease at a concentration of at least 10 ppb to said ossein over a sufficient period of time to solubilize the ossein to form a solution containing 0.5-6 wt.% gelatin at a predetermined viscosity.
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