期刊
JOURNAL OF TRACE ELEMENTS IN MEDICINE AND BIOLOGY
卷 19, 期 2-3, 页码 171-181出版社
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.jtemb.2005.05.001
关键词
human milk; macronutrients; trace elements; mineral composition; ICP-AES
The aim of the study was to determine the concentrations of macronutrients and the mineral and trace element composition in maternal milk of Japanese women. We collected human milk samples from mothers living throughout Japan from December 1998 to September 1999, and defined as group A the 1197 samples among them that met the following conditions: breast milk of mothers who were under 40 years old, not in the habit of smoking and/or using vitamin supplements.. and whose babies showed no symptoms of atopy and whose birth weights were 2.5 kg or more. We then analyzed their contents individually. We also analyzed the amino acid and free amino acid composition of the breast milk of pooled samples from various lactation stages. Large differences were found to exist among the contents of individual human milk samples. The mean contents of each component were as follows: energy, 66.3 +/- 13.3 kcal/100 mL; solid matter, 12.46 +/- 1.56 g/100 mL; ash, 0.19 +/- 0.06 g/100 mL; total nitrogen, 0.19 +/- 0.04 g/100 mL; lipids, 3.46 +/- 1.49 g/100 mL; carbohydrates, 7.58 +/- 0.77 g/100 mL; lactose, 6.44 +/- 0.49 g/100 mL; pH, 6.5 +/- 0.3; osmotic pressure, 299 +/- 14 mOsm/kg (.) H2O; chloride, 35.9 +/- 16.2 mg/100 mL; sodium, 13.5 +/- 8.7 mg/100 mL; magnesium, 2.7 +/- 0.9 mg/100 mL; phosphorus, 15.0 +/- 3.8 mg/100 mL; potassium, 47.0 +/- 12.1 mg/100 mL; calcium, 25.0 +/- 7.1 mg/100 mL; chromium, 5.9 +/- 4.7 mu g/100 mL; manganese, 1.1 +/- 2.3 mu g/100 mL; iron, 119 +/- 251 mu g/100 mL; copper, 35 +/- 21 mu g/100 mL; zinc, 145 +/- 135 mu g/100 mL; and selenium, 1.7 +/- 0.6 mu g/100 mL. The content of each component varied greatly as the duration of lactation increased. In conclusion, it appears to be necessary to evaluate individual differences of human milk in order to perform valid research regarding infant formula. (c) 2005 Elsevier GmbH. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据