Effect of mustard meal on the production of arachidonic acid by Mortierella elongata SC‐208

A strain of Mortierella elongata SC‐208 that was isolated from soil of a mustardseed extraction plant can produce arachidonic acid in significant amounts, and it was grown in three different media, one of which contained 0.5% deoiled mustard meal. The arachidonic acid content in the lipid part of dry mycelium (23.2 g/L) was as high as 33% w/w from the medium that contained mustard meal, and the overall yield of arachidonic acid was 0.49 g/L. The arachidonic acid contents in the phospholipid fraction and the triglyceride fraction were 39.5 and 30.2%, respectively.