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Issue title: The Proceedings of the 3rd International Conference on Food Factors (ICoFF 03)
Article type: Research Article
Authors: Meisel, Hans
Affiliations: Federal Research Centre for Nutrition and Food – Location Kiel, Institute for Dairy Chemistry and Technology, P.O. Box 6069, D-24121 Kiel, Germany. Tel.: +49 431 609 2250; Fax: +49 431 609 2300; E-mail: meisel@bafm.de
Abstract: Many bioactivities of milk are latent in that they are inactive within the protein sequence, requiring enzymatic proteolysis for release of bioactive peptides from milk proteins precursors. Bioactivities of peptides encrypted in major milk proteins are latent until released and activated, e.g. during gastrointestinal digestion or food processing. Bioactive peptides can be produced in vivo following intake of milk proteins, and the proteolytic system of bacterial species used in the production of fermented milk products and cheese can contribute to the liberation of bioactive peptides or precursors thereof. Activated peptides are potential modulators of various regulatory processes in the living system: immunomodulatory peptides stimulate the activities of cells of the immune system and several cytomodulatory peptides inhibit cancer cell growth, antimicrobial peptides kill sensitive microorganisms, angiotensin-I-converting enzyme (ACE)-inhibitory peptides exert an hypotensive effect, opioid peptides are opioid receptor ligands which can modulate absorption processes in the intestinal tract, mineral binding peptides may function as carriers for different minerals, especially calcium. Many milk-derived peptides reveal multifunctional properties, i.e. specific peptide sequences having two or more different biological activities have been reported. Milk protein-derived bioactive peptides are claimed to be health enhancing components that can be used to reduce the risk of disease or to enhance a certain physiological function.
Keywords: milk protein, bioactive peptides, immunomodulatory, antimicrobial, hypotensive, opioid, mineral binding, cytomodulatory, functional food
Journal: BioFactors, vol. 21, no. 1-4, pp. 55-61, 2004
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