Summary Antarctic krill meal as well as mixed krill meal and starches were extruded through a twin‐screw extruder. The extrudates were hard and porous agglomerates. The pellets still showed intact structure without obvious disintegration in response to hexane extraction. The oil recovery rates for raw krill meal and the extrudate of single krill meal were 55.08% and 59.08%, respectively. For extrudates, oil recovery rate increased along with the increasing additive amount of starches, with a maximum of 83.13%. Oil extracted from raw krill meal contained 49.30% of triglycerides (TG), 44.16% of phospholipids (PL), 1.45% of free fatty acids (FFA) and 4.69% of cholesterols (CHO). Meanwhile, polyunsaturated fatty acids (PUFA), monounsaturated fatty acids (MUFA) and saturated fatty acids (SFA) account for 20.89%, 37.84% and 41.27% of the total fatty acids, respectively. By contrast, oils extracted from extrudates contained more TG but less PL and more SFA but less PUFA.

Costume pattern carries massive traditional culture and national spirit. It has important significance on people’s life and records the historical process of a nation. The topic of the paper starts from Chinese traditional auspicious pattern, summarizes the combination, layout and implied meaning of pattern through the analysis on the special shape and formal beauty; analyzes and research the cultural spirit and plastic art of traditional auspicious pattern. It makes analysis on the graphic language of traditional pattern and formal language under modern design thinking, finds new graphic language in reconstruction and innovation, this new form may have no direct relation with traditional pattern, but it could invisibly convey traditional spirit, which could better reflect the aesthetic taste of modern design to make Chinese traditional essence possess times spirit and reach the internal spirit unity between people and costume.