| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for extracting fish-originated collagen peptide, by which the collagen peptide can efficiently be recovered in a high recovery rate, while shortening the treating time. SOLUTION: The method for extracting the fish-originated collagen peptide is characterized by including a crushing process for finely crushing a fish-originated raw material so that a decrease rate in the diffraction intensity of the Miller index (002) of hydroxyapatite crystal obtained by X-ray diffraction method on the basis of the un-crushed fish-originated raw material is fit to a prescribed range; and a process for performing a treatment for extracting collagen protein from the finely crushed fish-originated raw material in 30 to 70°C water and a treatment for hydrolyzing the extracted collagen protein into collagen peptide with a protease, as one process; wherein the lower limit value of the prescribed range is determined from a viewpoint that the recovery of the collagen peptide is≥75%; and the upper limit value of the prescribed range is determined from a viewpoint that the increase in the ratio of the recover rate of the collagen peptide to the decrease rate of the diffraction intensity is maintained at≥0.34. COPYRIGHT: (C)2011,JPO&INPIT |
