胡杨、灰叶胡杨种子营养化学成分的研究

A study on the chemical composition of Populus euphratica and Populus pruinosa seeds

对不同居群的胡杨、灰叶胡杨种子营养化学成分进行分析,结果表明,胡杨种子中可溶性糖、粗蛋白质、脂肪、淀粉的含量分别为9～12g·kg-1、38～44g·kg-1、21～62g·kg-1、1.9～2.3g·kg-1;灰叶胡杨种子中可溶性糖、粗蛋白质、脂肪、淀粉的含量分别为9～10g·kg-1、38～48g·kg-1、14～41g·kg-1、2.3～2.5g·kg-1.胡杨、灰叶胡杨不同居群种子中大量元素含量均以N最高,分别为6.0～6.9g·kg-1、6.3～7.6g·kg-1;微量元素含量排序一致,依次为Fe>Zn>Cu>Mn>Pb>Ni>Cd.统计分析表明,不同居群种子中可溶性糖、粗蛋白、粗脂肪、N、P、K、Ca、Mg的含量均呈现极显著差异;而淀粉与微量元素含量除一些差异不显著外,其余均达显著或极显著水平.

The chemical composition of Populus euphratica and Populus pruinosa seeds from different inhabited environment was studied.The result showed that the content of soluble carbohydrate,crude protein,fat and starch in Populus euphratica seeds 9~12 g·kg-1,38~44 g·kg-1,21~62 g·kg-1,1.9~2.3 g·kg-1,and in Populus pruinosa seeds was 9~10 g·kg-1,38~48 g·kg-1,14~41 g·kg-1,2.3~2.5 g·kg-1.Respectively,the content of N was the highest among the macroelements,which was 6.0~6.9 g·kg-1 in Populus euphratica seeds and 6.3~7.6 g·kg-1 in Populus pruinosa seeds.The order of the microelement contents in two seeds was Fe>Zn>Cu>Mn>Pb>Ni>Cd.The stastics showed that difference of the content of crude protein,fat,starch,N,P,K,Ca and Mg in Populus euphratica seeds or Populus pruinosa seeds from different population was extremely significant,and the content of starch was significant of extreme significant except for some of them.