Variation in macronutrients in human bank milk : influencing factors and implications for human milk banking

摘要: Protein (P), fat (F), and carbohydrate (C) concentration in expressed human bank milk was determined by infrared analysis of 2,554 samples from 224 mothers. The mean contents P, F, C, energy (E, calculated C) were 9.0 g/L, 39.0 71.9 696 kcal/L, respectively. There a large variation the energy-yielding macronutrients. E with highest values (97.5 percentile) 2.3-, 4.8-, 1.2-, 2.3-fold, respectively, above lowest (2.5 percentile). P content decreased exponentially during 1st 8 months, followed an increase following months. F 4 almost linear increase. possible influence different maternal characteristics on macronutrient examined. main results as follows: increased slightly increasing body mass index mother, amounts delivered to bank, higher mothers delivering milk. By selecting incoming high content, we have developed "high-protein" about 12 g/L (true protein) 725 kcal/L. Thus, continuous monitoring it is develop sufficient cover needs preterm infants very low birth weights (less than 1,500 g).