Department of Food Science and Technology, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
Department of Food Science and Technology, Faculty of Agriculture, Forestry and Natural Environment, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece.
Food Chem. 2015 Apr 15;173:80-5. doi: 10.1016/j.foodchem.2014.09.168. Epub 2014 Oct 8.
The objective of this study was to monitor the post-partum variation of polyamine content, in ovine and caprine milk, from indigenous Greek breeds. Twenty samples of ewe and 20 samples of goat colostrum and milk were collected at the 1st, 2nd, 3rd, 4th, 5th and 15th day post-partum. Putrescine, spermidine and spermine were measured as dansylated derivatives by high-performance liquid chromatography. Putrescine was the least concentrated of these substances in both milk types. Spermidine was the prevailing polyamine in caprine samples, reaching levels up to 4.41 μmol/l on the 3rd day post-partum. In ovine milk, the profile of the mean concentrations showed greater levels of spermine than spermidine, except for the 5th day post-partum. These data suggest that goat colostrum and ewe milk (15th day) could be considered as good natural sources for these bioactive growth factors, and may become useful raw materials for designing tailored dairy products for specific population groups.
本研究旨在监测来自希腊本土品种的绵羊和山羊乳中多胺含量的产后变化。在产后第 1、2、3、4、5 和 15 天采集了 20 份母羊奶样和 20 份山羊初乳和奶样。采用高效液相色谱法将腐胺、精胺和精脒衍生化为丹磺酰衍生物进行测量。在这两种乳中，腐胺的浓度最低。在山羊样本中，精胺是主要的多胺，产后第 3 天达到 4.41 μmol/l。在绵羊乳中，除了产后第 5 天外，精脒的平均浓度水平高于精胺。这些数据表明，山羊初乳和绵羊乳（产后第 15 天）可以被认为是这些生物活性生长因子的良好天然来源，并且可能成为设计针对特定人群的定制乳制品的有用原料。
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