Cryptococcus terricola is a promising oleaginous yeast for biodiesel production from starch through consolidated bioprocessing

• DOI: 10.1038/srep04776
• Publication Date: 2014-04-24T10:00:03Z
• Authors: Ayumi Tanimura; Masako Takashima; Takashi Sugita; Rikiya Endoh; Minako Kikukawa; Shino Yamaguchi; Eiji Sakuradani; Jun Ogawa; Moriya Ohkuma; Jun Shima
• Keywords: 0106 biological sciences; Fatty Acids; Starch; Lipid Metabolism; 01 natural sciences; Article; Culture Media; Cryptococcus; Industrial Microbiology; Kinetics; Biofuels; Environmental Microbiology

Starch is considered a potential feedstock for biofuel production, particularly in light of the large-scale landfilling food waste and other starchy materials worldwide. Lipid accumulation by oleaginous yeast promising method biodiesel production from starch. However, most yeasts are grown on monosaccharides or oligosaccharides because they cannot directly utilize We therefore investigated starch-assimilation ability 1,200 yeasts. found that Cryptococcus terricola could be used fuel through consolidated bioprocessing. C. JCM 24523 exhibited highest lipid content 61.96% medium with 5% starch at 10 days. Fatty acid methyl ester analysis showed this strain produced high proportions C16:0 C18 fatty acids when starch, which ideal use biodiesel. Considering yield cost, lipids derived using would alternative source production.