(374f) Impact of Nutrients On the Cost of Lipid Production by the Oleaginous Yeast Conference: AIChE Annual MeetingYear: 2010Proceeding: 2010 AIChE Annual MeetingGroup: Sustainable Engineering ForumSession: Poster Session: Sustainability and Sustainable Biorefineries Time: Tuesday, November 9, 2010 - 6:00pm-8:00pm Authors: Patil, S., University of Louisiana at Lafayette Subramaniam, R., University of Louisiana at Lafayette Wang, C., University of Louisiana at Lafayette Zappi, M., University of Louisiana at Lafayette Bajpai, R. K., University of Louisiana Dufreche, S., University of Louisiana at Lafayette The yeast extract plays a vital role in the production cost of lipids. In this work an attempt was made to optimize the yeast extract requirements in the media composition for lipid production by the oleaginous yeast with soluble sweet potato starch. In this approach response surface methodology was utilized for experimental design and optimization of variables. A mathematical model with the high R2 value was developed to show the medium composition and their interactions on the lipid production. The results shows that cost of lipid production can be reduced significantly by optimization.