METHOD FOR EXTRACTING EDIBLE OR COSMETIC COLLAGEN FROM BONE OR HORN OF ANIMALS TO CHEAPLY AND EASILY EXTRACT HIGH PURITY COLLAGEN USEFUL FOR FOOD OR COSMETICS

摘要

PURPOSE: A method for extracting edible or cosmetic collagen from the bone or horn of animals is provided, thereby cheaply and easily extracting the high purity collagen, so that the collagen can be useful for food or cosmetics. CONSTITUTION: The method for extracting edible or cosmetic collagen from the bone or horn of animals comprises the steps of: pulverizing the bone or horn of animals; adding water into the pulverized bone or horn of animals and heating the mixture at 120 deg. C to 135 deg. C and 10 to 40psi to extract collagen; separating a water-soluble layer from the extracted collagen with an organic solvent and removing lipid-soluble low molecules; dialysis of the water-soluble layer with semi-permeable membrane to remove low molecular weight materials; and distillation drying or freeze-drying the dialyzed solution, wherein the organic solvent is butanol or ether.