Patent ID: 7858748

Claim:
A marine collagen purified in accordance with a method comprising the steps: adjusting a moisture content of a collagen precipitate, which has been precipitated in an acid medium, to 70 to 95% by weight; suspending the precipitated collagen in a first aqueous H 2 O 2 solution; solubilizing the suspended collagen by adjusting a pH of the collagen suspension to a value of from 11 to 13; reprecipitating the suspended collagen with an organic, water-miscible solvent; filtering off of the reprecipitated collagen; adjusting a moisture content of the reprecipitated collagen to 70 to 95% by weight; resuspending the reprecipitated collagen in a second aqueous H 2 O 2 solution; and adjusting the pH of the resuspended collagen to a value of from 5 to 7.