Patent ID: 7285291

Claim:
A method for obtaining an anti-tumor substance from the colostrum of an even-toed hoofed animal having leucosis, comprising the steps of: a) providing colostrum from an even-toed hoofed animal having leucosis; b) shaking the colostrum with an identical volume of a 1:1 mixture comprising i-propyl alcohol and chloroform at room temperature for 8 hours; c) centrifuging the resulting material at a speed of at least 5000 rev/mm for 20 minutes in a cooled state to result in an upper layer, medial layer, organic layer and the rest of the material; d) removing the upper layer and subjecting it to freeze-drying; and e) diluting the dried upper layer in physiological saline solution to a therapeutically effective concentration of the anti-tumor substance.