Abstract: The present invention relates to a method for tagging an object (101). The method comprising: measuring a physical characteristic pertaining to the object (101); determining an object reference unique identification (105) from the physical characteristic pertaining to the object (101); generating a cipher (108) using an encryption algorithm (107) having the object reference unique identification (105) as input data; tagging the object (101) with the cipher (108); and registering the cipher (108) and a key (110) for decrypting the cipher (108) in a ledger (111).

Abstract: An optimized method for obtaining ACE activity inhibitory peptides includes the steps of whey ultrafiltration for obtaining a whey concentrate, enzymatic hydrolysis, hydrolysate ultrafiltration and inhibitory peptide separation. The method includes selecting and adding a mixture having suitable proportion and amount of two microbial proteases and having complementary action to the whey concentrate for the hydrolysis thereof in order to obtain peptides with an ACE inhibition percentage greater than 70% and an IC50 index of 30 to 100 ?g/ml.