EXTRACTION METHOD OF EEL-ORIGINATED COLLAGEN, PRODUCTION METHOD OF COLLAGEN POWDER, PRODUCTION METHOD OF COLLAGEN-COATED RICE, COLLAGEN POWDER, AND COLLAGEN-COATED RICE

摘要

PROBLEM TO BE SOLVED: To provide methods for extracting collagen from non-edible parts (mainly bone parts and head parts) of eel in high efficiency and inexpensively, producing high purity collagen powder, and utilizing the extracted collagen.SOLUTION: A extraction method of eel-originated collagen comprises the following steps: (1) a step of heating the non-edible parts of eel with water, agitating and pulverizing them; (2) a step of cooling from the temperature in step (1), thereafter adding an enzyme to cause enzymatic reaction; (3) a step of heating from the temperature in step (2) to cease the enzymatic reaction; (4) a step of filtering the liquid of the step (3) to separate solid matter from the filtrate; and (5) a step of separating the filtrate into a collagen ingredient and lipid.