摘要：Lipid and fatty acid composition of skeletal muscle of antarctic giant fish (Dissostichus mawsoni NORMAN) were examined. Thin-layer and column chromatography showed that the neutral lipids made up 98% of the total lipids, while phospholipids only 2% or less. The direct gas chromatographic analysis of triglycerides revealed that the major molecular species were C_<44>, C_<46>, C_<48>, C_<50>, C_<52> and C_<54>, that their fatty acid composition resembled the other edible oil of marine fishes, and that the major components were C_<16 : 0>, C_<18 : 0>, C_<16 : 1>, C_<18 : 1>, C_<18 : 2>, C_<20 : 5> and C_<22 : 6> with smaller amounts of C_<20 : 1>, C_<22 : 1> and C_<24 : 1>. The positional distributions of fatty acid on glycerides was also determined by lipase and phospholipase A_2 treatment and it showed that saturated and monoenoic fatty acids occurred in 1 position, while polyunsaturated fatty acids in 2 position, exclusively.
