Abstract：
:Human milk feeding is an important recommendation for preterm newborns considering their vulnerability and digestive immaturity. Holder pasteurization (62.5°C, 30min) applied in milk banks modifies its biological quality and its microstructure. We investigated the impact of pasteurization of preterm human milk on its gastrointestinal kinetics of lipolysis, proteolysis and structural disintegration. An in vitro dynamic system was set up to simulate the gastrointestinal digestion of preterm newborns. A pool of preterm human milk was digested as raw or after Holder pasteurization. Pasteurization impacted the microstructure of undigested human milk, its gastrointestinal disintegration and tended to limit the intestinal lipolysis. Furthermore, the gastrointestinal bioaccessibility of some fatty acids was decreased by pasteurization, while the intestinal bioaccessibility of some amino acids was selectively modulated. The impact of pasteurization on the digestion of human milk may have nutritional relevance in vivo and potentially modulates preterm development and growth.
journal_name
Food Chemjournal_title
Food chemistryauthors
de Oliveira SC,Bourlieu C,Ménard O,Bellanger A,Henry G,Rousseau F,Dirson E,Carrière F,Dupont D,Deglaire Adoi
10.1016/j.foodchem.2016.05.028subject
Has Abstractpub_date
2016-11-15 00:00:00pages
171-9eissn
0308-8146issn
1873-7072pii
S0308-8146(16)30707-5journal_volume
211pub_type
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