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  • Title: Differences in the Triacylglycerol and Fatty Acid Compositions of Human Colostrum and Mature Milk.
    Author: Zhao P, Zhang S, Liu L, Pang X, Yang Y, Lu J, Lv J.
    Journal: J Agric Food Chem; 2018 May 02; 66(17):4571-4579. PubMed ID: 29658706.
    Abstract:
    Human colostrum is important for immune system development and plays a protective role for infants. However, the comprehensive exploration of lipids, which account for 3-5% of milk, and their biological functions in human colostrum was limited. In present study, the triacylglycerol (TAG) and fatty acid (FA) compositions of human colostrum and mature milk were analyzed and compared. Variations were observed in both the TAG and FA compositions. The concentrations of 18:1/18:1/16:0 TAG, high-molecular-weight and unsaturated TAGs were significantly higher in colostrum, whereas mature milk contained more low/medium-molecular-weight TAGs and medium-chain FAs. Furthermore, there were also specific TAGs in both colostrum and mature milk. Our data highlighted targets for further investigation to elucidate the biological function of lipids in colostrum milk. In addition, the comprehensive analysis of TAGs in Chinese colostrum might help in designing infant formula for Chinese babies, especially the preterm ones.
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