Journal
BIORESOURCE TECHNOLOGY
Volume 153, Issue -, Pages 230-235Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.11.086
Keywords
Oleaginous yeast; Fatty acids; Lipid productivity; Cryptococcus musci; Cryptococcus podzolicus
Funding
- Institute for Fermentation, Osaka (IFO)
- Advanced Low Carbon Technology Research and Development Program of Japan (ALCA)
- Grants-in-Aid for Scientific Research [24880034] Funding Source: KAKEN
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The lipid-accumulating ability of 500 yeast strains isolated in Japan was evaluated. Primary screening revealed that 31 strains were identified as potential lipid producers, from which 12 strains were cultivated in a medium containing 3% glucose. It was found that JCM 24511 accumulated the highest lipid content, up to 61.53%, while JCM 24512 grew the fastest. They were tentatively identified as Cryptococcus sp. and Cryptococcus musci, respectively. The maximum lipid concentration of 1.49 g/L was achieved by JCM 24512. Similarly, JCM 24511 also achieved a high lipid production of 1.37 g/L. High lipid productivity is the most important characteristic of oleaginous yeasts from the viewpoint of practical production. Among the strains tested here, JCM 24512 had the best lipid productivity, 0.37 g/L/day. The results show that the isolated yeasts could be promising candidates for biodiesel production. (C) 2013 Elsevier Ltd. All rights reserved.
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