Scale-up of Microbial Lipid and Bioethanol Production from Oilcane

Themes: Conversion

Keywords: Bioproducts, Feedstock Bioprocessing, Hydrolysate


Deshavath, N.N., Woodruff, W., Eller, F., Susanto, V., Yang, C., Rao, C.V., Singh, V. March 15, 2024. “Scale-up of Microbial Lipid and Bioethanol Production from Oilcane.” Bioresource Technology. DOI: 10.1016/j.biortech.2024.130594.


Graphical abstract of oilcane processing.

Microbial oils are a sustainable biomass-derived substitute for liquid fuels and vegetable oils. Oilcane, an engineered sugarcane with superior feedstock characteristics for biodiesel production, is a promising candidate for bioconversion. This study describes the processing of oilcane stems into juice and hydrothermally pretreated lignocellulosic hydrolysate and their valorization to ethanol and microbial oil using Saccharomyces cerevisiae and engineered Rhodosporidium toruloides strains, respectively. A bioethanol titer of 106 g/L was obtained from S. cerevisiae grown on oilcane juice in a 3 L fermenter, and a lipid titer of 8.8 g/L was obtained from R. toruloides grown on oilcane hydrolysate in a 75 L fermenter. Oil was extracted from the R. toruloides cells using supercritical CO2, and the observed fatty acid profile was consistent with previous studies on this strain. These results demonstrate the feasibility of pilot-scale lipid production from oilcane hydrolysate as part of an integrated bioconversion strategy.


Download (8.6 KB) includes:

  • Enzymatic hydrolysis data
  • Sugar and lipid yields
  • Strain growth curves

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