| 摘要 |
The present invention addresses the problem of providing a fractional extraction method whereby mucin and collagen are separately and fractionally extracted from a single starting material that comprises jellyfish. The method for fractionally extracting mucin and collagen is characterized by comprising: a protein separation process (A) for crushing jellyfish, solid-liquid separating the thus obtained water-containing crushed product, mixing the thus obtained liquid component with a water-soluble alcohol having 1 to 4 carbon atoms, said mixing being conducted in such a manner as to control the concentration of the water-soluble alcohol having 1 to 4 carbon atoms to at least 50 vol% relative to the whole mixture, and then solid-liquid separating the thus obtained mixture to give solid matters; and a fractionation process (B) for mixing the solid matters that are obtained in the above protein separation process (A) with an aqueous solution of a water-soluble alcohol having 1 to 4 carbon atoms, said aqueous solution having an alcohol concentration of 10-40 mass%, and then subjecting the thus obtained mixture to solid-liquid separation to thereby solid-liquid fractionate the mixture into a mucin-containing liquid component and a collagen-containing solid component. |
