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运用ＧＣ和ＧＣ／ＭＳ分析了鱼油、多烯脂肪酸（ＰＵＦＡ）和ＤＨＡ奶粉中脂肪酸组成．结果表明以鱿鱼油制备的ＰＵＦＡ中主要脂肪酸是十六碳烯酸、十六碳酸、十八碳三烯酸、十八碳一烯酸、二十碳五烯酸、二十碳四烯酸、二十二碳六烯酸和二十二碳五烯酸；采用ＳＮＳ法制备的ＰＵＦＡ，（ＤＨＡ＋ＥＰＡ）含量可达９７．８０％，采用不同试剂组合处理，可使ＰＵＦＡ中ＤＨＡ，ＥＰＡ含量分别达到７７．７６％，７６．７１％；ＤＨＡ奶粉比全脂奶粉含有更多的不饱和脂肪酸，特别是ＤＨＡ和ＥＰＡ丰富，营养价值高，质量上乘
The fatty acid composition of fish oil, polyene fatty acid (PUFA) and DHA milk powder was analyzed by GC and GC / MS. The results showed that the main fatty acids in PUFA prepared from squid oil were hexadecanoic acid, palmitic acid, stearidonic acid, octadecadienoic acid, eicosapentaenoic acid, arachidonic acid, Docosahexaenoic acid and docosapentaenoic acid. The contents of DHA and EPA in the PUFA were 97.80% for the PUFA prepared by the SNS method, and the contents of DHA and EPA in the PUFA were achieved by different combinations of reagents 77.76%, 76.71%; DHA milk powder contains more unsaturated fatty acids than whole milk powder, especially rich DHA and EPA, high nutritional value, high quality