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Bioactive Components in Milk and Dairy Products - Prof. Dr. Aulanni ...

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Table 1.1. Major biologically active milk components <strong>and</strong> their functions 1<br />

<strong>Milk</strong> Precursors or<br />

<strong>Components</strong><br />

α - , β - case<strong>in</strong>s<br />

α - , β - case<strong>in</strong>s<br />

α - , β - case<strong>in</strong>s<br />

α - , β - case<strong>in</strong>s<br />

α s1<br />

α s2<br />

- case<strong>in</strong><br />

- case<strong>in</strong><br />

κ - case<strong>in</strong><br />

κ - case<strong>in</strong><br />

κ - case<strong>in</strong><br />

α - lactalbum<strong>in</strong> ( α - La)<br />

β - lactoglobul<strong>in</strong>( β - La)<br />

Serum album<strong>in</strong><br />

α - La, β - La <strong>and</strong> Serum<br />

album<strong>in</strong><br />

Immunoglobul<strong>in</strong>s<br />

Lactoferr<strong>in</strong><br />

Lactoferr<strong>in</strong><br />

Oligosaccharides<br />

Glycolipids<br />

Oligosaccharides<br />

Prolact<strong>in</strong><br />

Cytok<strong>in</strong>es<br />

Growth factors<br />

Parathromone - P<br />

<strong>Bioactive</strong> Compounds<br />

Casomorph<strong>in</strong>s<br />

Casok<strong>in</strong><strong>in</strong>s<br />

Phosphopeptides<br />

Immunopeptides<br />

Casomorph<strong>in</strong>s<br />

Casok<strong>in</strong><strong>in</strong>s<br />

Isracid<strong>in</strong><br />

Casocid<strong>in</strong><br />

Casox<strong>in</strong>s<br />

Casoplatel<strong>in</strong>s<br />

κ - case<strong>in</strong><br />

glyco - macropeptide<br />

Lactorph<strong>in</strong>s<br />

Serorph<strong>in</strong><br />

Lactok<strong>in</strong><strong>in</strong>s<br />

IgG, IgA<br />

Lactoferr<strong>in</strong><br />

Lactoferrox<strong>in</strong>s<br />

Oligosaccharides<br />

Glycolipids<br />

Oligosaccharides<br />

Prolact<strong>in</strong><br />

Interleuk<strong>in</strong>s - 1,2,6, & 10<br />

Tumor necrosis factor - α<br />

Interferon - γ<br />

Transform<strong>in</strong>g growth<br />

Factors - α , β ; leukotriene B 4<br />

Prostagl<strong>and</strong><strong>in</strong> E 2 , Fn<br />

IGF - 1, TGF - α , EGF, TGF - β<br />

PTHrP<br />

Bioactivities Observed<br />

Opioid agonist (Decrease gut mobility, gastric<br />

empty<strong>in</strong>g rate; <strong>in</strong>crease am<strong>in</strong>o acids <strong>and</strong><br />

electrolytes uptake)<br />

ACE <strong>in</strong>hibitory (Increase blood fl ow to <strong>in</strong>test<strong>in</strong>al<br />

epithelium)<br />

M<strong>in</strong>eral b<strong>in</strong>d<strong>in</strong>g (Ca b<strong>in</strong>d<strong>in</strong>g; <strong>in</strong>crease m<strong>in</strong>eral<br />

absorption, i.e., Ca, P, Zn)<br />

Immunomodulatory (Increase immune response<br />

<strong>and</strong> phagocytic activity)<br />

Antimicrobial<br />

Antimicrobial<br />

Opioid antagonist<br />

Antithrombotic<br />

Probiotic (Growth of bifi dobacteria <strong>in</strong> GI tract)<br />

Opioid agonist<br />

Opioid agonist<br />

ACE <strong>in</strong>hibitory<br />

Immunomodulatory (Passive immunity)<br />

Immunomodulatory (Increase natural killer cell<br />

activity, humoral immune response, thymocyte<br />

traffi ck<strong>in</strong>g immunological development, <strong>and</strong><br />

<strong>in</strong>terleuk<strong>in</strong>s - 6; decrease tumor necrosis<br />

factor - α )<br />

Antimicrobial (Increase bacteriostatic <strong>in</strong>hibition of<br />

Fe - dependent bacteria; decrease viral<br />

attachment to <strong>and</strong> <strong>in</strong>fections of cells)<br />

Probiotic activity (Increase growth of<br />

Bifi dobacteria <strong>in</strong> GI tract)<br />

Opioid antagonist<br />

Probiotic (Increase growth of bifi dobacteria <strong>in</strong> GI<br />

tract)<br />

Antimicrobial (Decrease bacterial <strong>and</strong> viral<br />

attachment to <strong>in</strong>test<strong>in</strong>al epithelial cells)<br />

Immunomodulatory (Increase lymphocyte <strong>and</strong><br />

thymocyte traffi ck<strong>in</strong>g, <strong>and</strong> immune<br />

development)<br />

Immunomodulatory (Lympocyte traffi ck<strong>in</strong>g,<br />

immune development)<br />

Organ development <strong>and</strong> functions<br />

Increase Ca +2 metabolism <strong>and</strong> uptake<br />

1<br />

Adapted from Schanbacher et al. (1998) , Meisel (1998) , <strong>and</strong> Clare <strong>and</strong> Swaisgood (2000) .<br />

5

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