南海鸢乌贼墨汁营养成分分析与评价

Nutritional component analysis and quality evaluation of Sthenoteuthis oualaniensis ink in the South China Sea

采用原子吸收仪、气相、液相色谱及一些常规的化学方法对南海鸢乌贼(Sthenoteuthis oualaniensis)墨汁的基本营养成分及氨基酸、脂肪酸、常量及微量矿物元素和维生素的质量分数进行了测定,结果显示,墨汁中水分65%,粗蛋白30.6%,粗脂肪0.7%,灰分2.08%。检测出16种氨基酸,其中7种为必需氨基酸,1种为半必需氨基酸(比例为39.8%),鲜味氨基酸为46.9%。墨汁中含有13种脂肪酸,不饱和脂肪酸相对质量分数为64%,同时富含钾(K)、钠(Na)、钙(Ca)、镁(Mg)等常量矿物元素和锌(Zn)、铁(Fe)等微量元素以及维生素B1(VB 1)、维生素B2(VB 2)、维生素E(VE)等水溶性、脂溶性维生素。

We analyzed the composition of the basic nutrients and amino acids,fatty acids and some trace elements as well as vitamins of ink from Sthenoteuthis oualaniensis in the South China Sea with an atom absorptiometry,gas and liquid phase chromatography as well as some general chemical methods. The results show that the contents of water,crude protein,fat and ash in the ink were 65%,30. 6%,0. 7% and 2. 08%,respectively. Sixteen kinds of amino acids were found which contained seven kinds of essential and one kind of half-essential amino acids. Essential amino acid was about 39. 8% of total amino acid in the ink and 46. 9% of umami amino acid. The ink contained 13 kinds of fatty acids and the relative content of unsaturated fatty acid（ UFA） was 64%,rich in vitamins and mineral elements such as K,Na,Ca,Mg,Fe,VB 1,VB 2and VE,which had significant effects on the operation of normal physiology function in human body.