Process for producing poly-unsaturated fatty acids by oleaginous yeasts

摘要

The present invention is directed to a process of producing novel fatty acids in oleaginous yeast by producing oleaginous yeast by introducing into the yeast genes coding for enzymes selected from the group consisting of D5-desaturase, D6-desaturase, D12-desaturase, D15-desaturase and elongase; and culturing the yeast in the medium containing high levels of carbon sources. The present invention is further directed to a residue or fatty acid that is obtained from pressing the oleaginous yeast produced by the process of the invention.