A simple method for production of arachidonic acid byMortierella alpina

Summary A filamentous fungus,Mortierella alpina was incubated aerobically on a medium made from potato paste and dextrose at 20 °C for 20 days. The yield of arachidonic acid reached 11.8 g/kg medium, which is more than 10 times higher than that by any other method reported previously. The highest content of the acid was 67.4% of the total fatty acids.