PROCESS FOR PRODUCING ARACHIDONIC ACID-CONTAINING LIPID AND DIHOMO- gamma -LINOLENIC ACID-CONTAINING LIPID

摘要

A process for producing an arachidonic acid-containing lipid characterized by culturing a mutant having been depressed or inactivated in the activity of omega 3-unsaturation, which is obtained by mutating a microorganism belonging to the genus Mortierella, etc. and being capable of producing arachidonic acid, in a medium at a temperature lower than the optimum temperature thereof, either from the initiation of the culture or after culturing at the optimum temperature for a while, and them taking up the arachidonic acid-containing lipid from the culture medium.