籽用南瓜种子发育过程中脂肪酸积累模式

Accumulation pattern of fatty acids during pumpkin(Cucurbita maxima Duch) seed development

以籽用南瓜品种银辉一号为材料对南瓜种子发育过程中脂肪酸的累积过程进行了分析。结果表明,成熟的南瓜种子中可检测到8种脂肪酸,按含量高低依次为:油酸、亚油酸、棕榈酸、硬脂酸、花生酸、豆蔻酸、棕榈油酸、亚麻酸。南瓜种子粗脂肪含量的积累模式呈现升-降-升的Z字型变化模式。在累积过程中除了C18∶1和C18∶2有负相关性外,其它脂肪酸相互之间显示了高度的正相关性。

Accumulation pattern of fatty acids during seed development of seed pumpkin（Cucurbita maxima cv Yinhui 1） was investigated using GC-MS method.Results showed eight fatty acids in mature pumpkin seeds.They were oleic acid,linoleic acid,cetylic acid,stearic acid,arachic acid,myristic acid,palmitoleic acid and linolenic acid.The quantity of crude fat changed during seed development in Z curve.During accumulation,there were negative correlation between oleic acid（C18∶ 1） and linolenic acid（C18∶ 2）,and positive correlation among other fatty acids.