尖鳍鲤的肌肉基本营养成分和脂肪酸组成

Study on basic nutrition and fatty acid composition of muscle in Cyprinus acutidorsalis Wang

使用常规营养测试方法,测定尖鳍鲤的肌肉营养成分。结果表明,其水分含量为79.29(±1.54)%,粗蛋白含量为16.77(±0.31)%,粗脂肪含量为2.48(±0.11)%,粗灰分含量为1.54(±0.11)%。使用GC-MS(气相色谱-质谱联合)技术,对尖鳍鲤的肌肉脂肪酸成分进行分析,研究各组分脂肪酸占总脂肪酸的比重。结果表明,尖鳍鲤肌肉中共分离和鉴定出18种脂肪酸,其中饱和脂肪酸(SAF)8种,分别是2-己基-环丙烷辛酸、月桂酸、12-甲基十三烷酸、肉豆蔻酸、十五烷酸、棕榈酸、珠光脂酸和硬脂酸;单不饱和脂肪酸(MUFA)4种,占总脂肪酸的40.4%,分别是9-十六烯酸、9-十八烯酸、11-十八烯酸和11-二十碳烯酸;多不饱和脂肪酸(PUFA)6种,分别为9,12-十八碳二烯酸、11,14-二十碳二烯酸、α-亚麻酸、11,14,17-二十碳三烯酸、花生四烯酸和DHA,占总脂肪酸比重的17.0%。

The nutritional components of muscle in Cyprinus acutidorsalis Wang were analyzed using ordinary standard methods. The results showed that contents of moisture, crude protein, crude fat, crude ash were 79.29（±1.54）%,16.77（±0.31）%, 2.48（±0.11）% and 1.54（±0.11）% in fresh muscle, respectively. The fatty acid composition of muscle in C.acutidorsalis Wang were analyzed through gravimetric method and tested by gas chromatogrphy-mass spectrometry（GC-MS）technology. The results showed that, 18 kinds of fatty acids were separated and determined. Among them, there were 8kinds of saturated fatty acids（SAF） including cyclopropaneoctanoic acid, 2-hexyl, dodecanoic acid, tetradecanoic acid-12-methyl, etradecanoic acid, pentadecanoic acid, hexadecanoic acid, heptadecanoic acid and octadecanoic acid; there were 4kinds of monounsaturated fatty acid（MUFA） including 9-hexadecenoic acid, 9-octadecenoic acid, 11-octadecenoic acid,11-eicosenoic acid, accounting for 40.4% of the total fatty acids; there were 6 kinds of polyunsaturated fatty acids（PUFA）including 9,12-octadecadienoic acid, 11,14-eicosadienoic acid, 9,12,15-octadecatrienoic acid, 11,14,17-eicosatrienoate,eicosatetraenoic acid and docosahexaenoic acid, accounting for 17.0% of the total fatty acids.