This is the first time that a study has shown a vast amount of new peptides in human milk . Founder Nora Khaldi and co-authors (Dallas, D. et al.) not only show that some breast milk proteins are digested into peptides prior infant digestion, but that many of these carry extroardinary anti-microbial functions as a protective shield to the breast fed infant.
1. David C Dallas, Andres Guerrero, Nora Khaldi, Patricia A Castillo, William F Martin, Jennifer T Smilowitz, Charles L Bevins, Daniela Barile, J Bruce German, Carlito B Lebrilla. Extensive in vivo human milk peptidomics reveals specific proteolysis yielding protective antimicrobial peptides. J Proteome Res, 2013. 12(5): p. 2295-304.
You can find this article in the Journal of Proteome Research at the following link http://pubs.acs.org/doi/abs/10.1021/pr400212z