Egg chalaza hydrolysate, method for preparing the same and usage of the same

A method for preparing an egg chalaza hydrolysate comprising the steps of:

• step 1:
• defrosting an egg chalaza and washing with distilled deionized water for removal of impurities;
• taking a first product at a lower layer after centrifugation;
• step 2:
• heating the first product at 95° C. for 10-30 minutes and cooling down;
• then adding distilled deionized water to get a homogeneous solution of the egg chalaza;
• step 3:
• mixing 100-200 g homogeneous solution of the egg chalaza with a hydrolase at a ratio of 100:1-500:1 (w/w) and getting a first hydrolysate solution after reacting a period of time;
• step 4:
• heating the first hydrolysate solution at 95° C. for 10-30 minutes and cooling down;
• then taking a second hydrolysate solution at an upper layer after centrifugation;
• and
• step 5:
• filtering and lyophilizing the second hydrolysate solution to get the egg chalaza hydrolysate.