Study on the Fermentation Conditions of the Microbial Oils

T-5 strains of Mortierella were screened from soil sample, which had a high lipid contents. Through the orthogonal experiment, the optimization conditions of lipid were that temperature was 28°C, pH was 6.0, glucose concentration was 100g/L and inorganic nitrogen source concentration was 1g/L. The results of Gas chromatography analysis showed that the fatty acid was composed of 25.10% of Palm Acid, 25.17% of oleic acid, 20.99% of linoleic acid and 4.78% of stearic acid, which were similar to the composition of plant fatty acid, so it can be used as a feedstock for biodiesel production.