Oil production by the yeast Trichosporon dermatis cultured in enzymatic hydrolysates of corncobs

Corncob was hydrolyzed with Trichoderma reesei cellulase and used as substrate for growth by the oleaginous yeast Trichosporon dermatis without detoxification or addition of a nitrogen source or trace elements. A total biomass of 24.4 g/L with a lipid content of 40.1% (corresponding to a lipid yield of 9.8 g/L), and a high lipid coefficient (lipid yield per mass of sugar, % g/g) of 16.7 could be achieved after cultivation for 7 days. Therefore, T. dermatis is a promising strain for microbial oil production from lignocellulosic biomass. (C) 2012 Elsevier Ltd. All rights reserved.