Screening of Oleaginous Microorganisms from Filamentous Fungi for Microbial Lipids Production

Some filamentous fungi were screened as potential oleaginous microorganisms for production of microbial lipid. The results showed that filamentous fungus Strain SCIM04 displayed the most potential ability in producing microbial lipid, the lipid content of cells reached 50.93%, and the lipid yield was 8.4±0.42 g /L. Furthermore, the components profile of the lipid were analyzed. The results revealed that the lipid was abundant in saturated long chain fatty acids (C16: 0) and low degree unsaturated long chain fatty acid (C18: 1), suggesting the lipid could be used for biodiesel production. The optimum media for the biomass and lipid production by the strain were maltose as carbon source with initial concentration 60 g/L, NaNO3 as nitrogen source at 3.0 g/L. The lipid content of cells highly reached 59.9%, and the lipid yield was 10.9±0.38 g/L, in the optimized media.