Synthesis of lipids by certain yeast strains grown on whey permeate

Four yeast strains, Apiotrichum curvatum ATCC 10567, Cryptococcus albidus A TCC 56297 Lipomyces starkeyi ATCC 12659, and Rhodosporidium toruloides ATCC 10788, were grown on whey permeate in order to synthesize lipid Lipomyces starkeyii ATCC 12659 was identified as a high producer of lipid It synthesi zed 36.9% lipid; based on dry cell mass at a carbon:nitrogen ratio of 30:1 in shake-flask experiments. The significant (p<0.05) effect of both carbon: nitrogen ratio and yeast strain was observed an dry cell mass yield and lip id biosynthesis. All yeast strains except Rhodosporidium toruloides ATCC 10 788 produced more triacylglycerols than phospholipids.