Fuente: WIPO "dairy products" The present invention provides antimicrobial peptides. The peptides are non-glycosylated, less than about 100 amino acids and include an amino aid sequence selected from the group consisting of: AVESTVATLEA$g(S)PEVIESPPE (SEQ. ID. NO. 1), AVESTVATLED$g(S)PEVIESPPE (SEQ. ID. NO. 2), AVESTVATLEASPEVIESPPE (SEQ. ID. NO. 3), AVESTVATLEDSPEVIESPPE (SEQ. ID. NO. 4), DMPIQAFLLYQQPVLGPVR (SEQ. ID. NO. 5), and conservative substitutions therein. These peptides can be produced synthetically, however, they can most conveniently be derived from casein.