Effect of Pooling Practices and Time Postpartum of Milk Donations on the Energy, Macronutrient, and Zinc Concentrations of Resultant Donor Human Milk Pools.
Effect of Pooling Practices and Time Postpartum of Milk Donations on the Energy, Macronutrient, and Zinc Concentrations of Resultant Donor Human Milk Pools.
复制标题
母乳捐赠的汇集实践和产后时间对最终捐赠母乳池的能量、常量营养素和锌浓度的影响。
DOI：
10.1016/j.jpeds.2019.07.042
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发表时间：
2019
期刊：
影响因子：
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通讯作者：
Krebs,NancyF
中科院分区：
文献类型：
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作者：
Young,BridgetE;Borman,LaraineL;Heinrich,Rebecca;Long,Julie;Pinney,Sarah;Westcott,Jamie;Krebs,NancyF
ObjectiveTo characterize the macronutrient, energy, and zinc composition of pasteurized donor human milk pools and evaluate how composition varies based on pooling practices and “time postpartum” (ie, elapsed time from parturition to expression date) of individual milk donations.Study designThe Mothers' Milk Bank (Arvada, Colorado) donated 128 donor human milk pools. Caloric density was assessed via mid-infrared spectroscopy, and zinc concentration was measured by atomic absorption spectroscopy. Pool time postpartum was calculated as the unweighted average of the time postpartum of all milk donations included in any given pool.ResultsTime postpartum of donor human milk pools ranged from 3 days to 9.8 months. The majority (91%) of donor human milk pools included milk from either 1 donor or 2 donors. Pool energy density ranged from 14.7 to 23.1 kcal/oz, and protein ranged from 0.52 to 1.43 g/dL. Milk zinc concentrations were higher in preterm pools and were negatively correlated with pool time postpartum. We present an equation that estimates donor human milk pool zinc content based on time postpartum and explains 49% of the variability in zinc concentrations (P< .0001). Including more donors in donor human milk pools decreased the variability in protein, but not zinc, concentrations.ConclusionsDonor human milk pools were lower in calories than is normally assumed in standard human milk fortification practices. Zinc concentrations were related to donor human milk time postpartum and were on average insufficient to meet preterm and term infants' needs without fortification or supplementation.
