BioChem - DOS

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

Scientific reports

Tanimura, Ayumi; Takashima, Masako; Sugita, Takashi; Endoh, Rikiya; Kikukawa, Minako; Yamaguchi, Shino; Sakuradani, Eiji; Ogawa, Jun; Ohkuma, Moriya; Shima, Jun

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

2014

Nature Publishing Group

cc-by-nc-sa

2045-2322

4

pp.4776

10.1038/srep04776

http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=05787966&target=NART&cn=NART80060487

https://www.nature.com/articles/srep04776.pdf