#$%^&*AU2017200707A120170928.pdf#####ABSTRACT OF THE DISCLOSURE Disclosed is a modified colostrum protein having an amino acid sequence shown in SEQ ID NO. : 1, which is generated by replacing Ile at position 33, Glu at position 101 and Arg at position 175 present in the amino acid sequence of a wild type colostrum protein shown in SEQ ID NO. : 2 respectively with Ala, Cys and Cys. 31