Itriago A, Carrión N, Fernández A, Puig M, Dini E
Centro de Química Analítica, Escuela de Química, Facultad de Ciencias, Universidad Central de Venezuela, Caracas.
Arch Latinoam Nutr. 1997 Mar;47(1):14-22.
Zinc, Copper, Iron. Calcium Phosphorous and Magnesium contents were determined in early milk samples in 72 mothers from Caracas city. The samples were collected during three different lactation stages: calostro (3 days), transitional (7 days) and mature milk (21 days). The more significant changes in the concentration of the studied elements were observed during the first two weeks, them they stabilize during the third week. The Zn, Cu, Fe, Ca, P and Mg average concentration found in calostro samples were 7.1 +/- 2.5 micrograms/ml; 0.52 +/- 0.15 microgram/ml; 0.49 +/- 0.14 microgram/ml; 214 +/- 62 micrograms/ml, 107 +/- 27 micrograms/ml and 33.3 +/- 7.5 micrograms/ml. respectively. For the transitional milk samples the average concentration found for the studied elements were: 4.0 +/- 1.0 micrograms/ml; 0.50 +/- 0.10 microgram/ml; 0.38 +/- 0.08 microgram/ml, 292 +/- 62 micrograms/ml; 213 +/- 36 micrograms/ml and 30.4 +/- 5.2 micrograms/ml. For the mature milk samples the results were: 2.8 +/- 2.7 micrograms/ml; 0.47 +/- 0.08 microgram/ml; 0.36 +/- 0.09 microgram/ml; 244 +/- 49 micrograms/ml; 175 +/-35 micrograms/ml and 25.2 +/- 3.3 micrograms/ml. The concentration range for all trace elements studied (Cu, Fe and Zn) can be considered normal. For the major elements (Ca, P and Mg) the results obtained in our work are similar to those reported for other countries. These facts allows to conclude that the nutritional state of this mother population is adequate to satisfy the lactate's requirements during their first live stage.
对来自加拉加斯市的72位母亲的早期乳汁样本中的锌、铜、铁、钙、磷和镁含量进行了测定。样本在三个不同的泌乳阶段采集：初乳期（3天）、过渡乳期（7天）和成熟乳期（21天）。在前两周观察到所研究元素浓度的更显著变化，然后在第三周趋于稳定。初乳样本中锌、铜、铁、钙、磷和镁的平均浓度分别为7.1±2.5微克/毫升、0.52±0.15微克/毫升、0.49±0.14微克/毫升、214±62微克/毫升、107±27微克/毫升和33.3±7.5微克/毫升。过渡乳样本中所研究元素的平均浓度为：4.0±1.0微克/毫升、0.50±0.10微克/毫升、0.38±0.08微克/毫升、292±62微克/毫升、213±36微克/毫升和30.4±5.2微克/毫升。成熟乳样本的结果为：2.8±2.7微克/毫升、0.47±0.08微克/毫升、0.36±0.09微克/毫升、244±49微克/毫升、175±35微克/毫升和25.2±3.3微克/毫升。所研究的所有微量元素（铜、铁和锌）的浓度范围可被视为正常。对于主要元素（钙、磷和镁），我们工作中获得的结果与其他国家报道的结果相似。这些事实可以得出结论，该母亲群体的营养状况足以满足哺乳期第一阶段婴儿的需求。
