Saito Hiroaki
National Research Institute of Fisheries Science, Fisheries Research Agency.
J Oleo Sci. 2014;63(5):471-84. doi: 10.5650/jos.ess13232. Epub 2014 Apr 9.
The lipid and fatty acid compositions of the muscle and liver of five Epinephelinae fishes (Epinephelus fasciatus, Epinephelus retouti, Cephalopholis aurantia, Cephalopholis miniatus, and Variola louti) in the coral reef were investigated. The major polyunsaturated fatty acid (PUFA) in the Epinephelinae fish triacylglycerols was 22:6n-3 (docosahexaenoic acid; DHA), which was similar to high levels of DHA in the depot triacylglycerols of highly migratory fishes. In the phospholipids of all specimens, unusually high levels of 20:4n-6 (arachidonic acid; ARA), 22:5n-6 (docosapentaenoic acid; n-6 DPA), and 20:5n-3 (icosapentaenoic acid; EPA) were found with markedly high levels of DHA. Noticeable levels of n-6 long-chain PUFA, such as ARA and n-6 DPA, were found in the muscle and liver polar lipids and suggested a typical profile of the fatty acid composition of coral demersal fishes. The five Epinephelinae fishes were healthful marine foods containing markedly high levels of DHA with noticeable levels of various n-3 and n-6 PUFA.
对珊瑚礁中5种石斑鱼(横纹九棘鲈、勒氏笛鲷、橘点石斑鱼、褐带石斑鱼和波纹唇鱼)的肌肉和肝脏的脂质及脂肪酸组成进行了研究。石斑鱼甘油三酯中的主要多不饱和脂肪酸(PUFA)为22:6n-3(二十二碳六烯酸;DHA),这与高度洄游鱼类储存甘油三酯中高水平的DHA相似。在所有样本的磷脂中,发现20:4n-6(花生四烯酸;ARA)、22:5n-6(二十二碳五烯酸;n-6 DPA)和20:5n-3(二十碳五烯酸;EPA)的含量异常高,同时DHA的含量也显著高。在肌肉和肝脏极性脂质中发现了显著水平的n-6长链PUFA,如ARA和n-6 DPA,这表明了珊瑚底栖鱼类脂肪酸组成的典型特征。这5种石斑鱼是健康的海洋食物,含有显著高水平的DHA以及各种显著水平的n-3和n-6 PUFA。