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Keywords:

  • ACE-inhibitory peptides;
  • Antimicrobial peptides;
  • Bioactive peptides;
  • Lactic acid bacteria;
  • Lactobacillus helveticus;
  • Milk proteins

Bioactivities of peptides encrypted in major milk proteins are latent until they are released and activated by enzymatic proteolysis. After a brief description of the properties of some bioactive peptides, an overview of the angiotensin I-converting-enzyme (ACE)-inhibitory and antimicrobial peptides is given. Emphasis is on the capacity of lactic acid bacteria to generate ACE-inhibitory peptides and on the exploitation of the potential role of antimicrobial peptides derived from milk proteins.