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野生中国对虾(Penaeus chinensis)脂肪酸的组成类似于其他的海洋动物,即雌、雄虾的肝胰脏和肌肉中,棕榈酸(16:0)和n-3族高不饱和脂肪酸(如20:5n-3和22:6n-3)占优势。野生虾体内含有的脂肪酸种类,尤其是高不饱和脂肪酸的种类多于养殖虾。野生虾肝胰脏中主要脂肪酸为16:0(20.0～22.5%),18:0(2.5～2.9%),18:1 n-9(12.3～14.0%),18:2 n-6(2.4～2.6%),20:5 n-3(6.1～6.6%)和22:6 n-3(7.1～7.5%)。肌肉中的主要脂肪酸种类大致与肝胰脏中相同。养殖虾中除了18:2 n-6(6.3～13.0%)高于和16:l(3.6～4.2%)低于野生虾外,其余的基本类似。野生虾比养殖虾有较高水平的n-3族和较低水平的n-6族不饱和脂肪酸,且野生虾n-3/n-6族脂肪酸的比率同样大于养殖虾。
The composition of fatty acids in wild Chinese shrimp Penaeus chinensis is similar to that of other marine animals, namely palmitic acid (16: 0) and n-3 polyunsaturated fatty acids (eg, 20: 5n-3 and 22: 6n-3). Wild shrimp body contains fatty acids, especially the type of high unsaturated fatty acids than cultured shrimp. The main fatty acids in the liver and pancreas of wild shrimp were 16: 0 (20.0-22.5%), 18: 0 (2.5-2.9%), 18: 1 n-9 ~ 2.6%), 20: 5 n-3 (6.1-6.6%) and 22: 6 n-3 (7.1-7.5%). The main types of fatty acids in muscle are roughly the same as in hepatopancreas. In cultured shrimp, except 18: 2 n-6 (6.3-13.0%) higher than 16: 1 (3.6-4.2%) lower than the wild shrimp, the rest of the similar. Wild shrimp have higher levels of n-3 and lower levels of n-6 unsaturated fatty acids than cultured shrimp, and the proportion of n-3 / n-6 fatty acids in wild shrimp is also greater than that of farmed shrimp.