Microbiological reprocessing of degumming residue formed during biodiesel production

A process of producing biomass from degumming residue, comprising culturing a yeast culture of the species Yarrowia lipolytica on a medium comprising an aqueous solution containing, as a carbon source, from 20.0 to 70.0 g of degumming residue per liter of the aqueous solution, at a temperature below 34° C., with medium oxygenation in excess of 20% of O2 saturation, maintained at a pH of 2.5 to 7.5, essentially until the exhaustion of the carbon source contained in the medium, to obtain a cultured broth containing biomass, so as to thereby produce biomass from degumming residue;

• wherein degumming residue comprises phosphoric acid residues and contains water, 0-10% fats, 0-10% protein, 0-5% ash and 0-1% glycerol.