NOVELTY - Composition (C1) comprises (a) crude glycerol, corn steep liquor, yeast autolysate, and oleaginous yeast or (b) crude glycerol, corn steep liquor, previously fermented and de-oiled yeast cells, and oleaginous yeast, where the pH of the composition is 5.5.    USE - The compositions (C1-C3) are useful for extracting oil from fermented oleaginous yeast, preferably C.curvatus and producing biodiesel from oleaginous yeast, preferably C.curvatus (all claimed).    ADVANTAGE - The composition isolates oil and produces biodiesel from oleaginous yeast in high density using inexpensive raw materials including crude glycerol and corn steep liquor. The extracted oil comprises 40% and 50% of dry weight of the fermented yeast.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) method (M1) for extracting oil from fermented oleaginous yeast, involves (a) (i) fermenting oleaginous yeast in a fermentation medium comprising crude glycerol, corn steep liquor and yeast autolysate, where the pH of the fermentation medium is 5.5, and (ii) extracting the oil from the fermented oleaginous yeast or (b) (i) fermenting Cryptococcus curvatus in a fermentation medium comprising crude glycerol, corn steep liquor, and previously de-oiled yeast cells, (ii) extracting the oil from the fermented C.curvatus, where the method does not comprise fermenting the C.curvatus in fermentation medium comprising malt extract or peptone or bakers yeast autolysate, and yeast cell biomass after fermenting is at least 40 g/l on a dry weight basis; (2) method (M2) for producing biodiesel, involves (a) fermenting oleaginous yeast in a fermentation medium comprising crude glycerol, corn steep liquor, and yeast autolyaste, where the pH of the fermentation medium is 5.5, (b) extracting the oil from the fermented oleaginous yeast, and (c) transesterifying the extracted oil; (3) composition (C2) comprising the oil extracted by the above-mentioned method (M1), where the oil comprises at least 0.2% myristic acid, at least 25% palmitic acid, at least 0.5% palmitoleic acid, at least 9% stearic acid, at least 45% oleic acid and at least 5% linoleic acid; and (4) composition (C3) comprising biodiesel produced by the method (M2), where the biodiesel has the following parameters: acid value (EN14104) of 0.47, soap (parts per million (ppm)) of 50, moisture content (ppm) of 500, density g/ml (ENIS03675) of 878.6, viscosity cm2/sec (EN ISO3104) of 6.061, cloud point (ASTM-D2500) of plus minus 8 degrees C, flash point (ASTM D93) of greater than 120 plus minus degrees C, copper strip corrosion (ASTM D130) of la, carbon residue% (ASTM D524) of 0.01, and sulfated ash % (ISI448P:04) 0.02.