Journal
BIOMASS & BIOENERGY
Volume 49, Issue -, Pages 273-278Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2012.12.023
Keywords
Trichosporon coremiiforme; Microbial oil; Corncob acid hydrolysate; Detoxification; Biodiesel
Funding
- Support Plan Project of National Science and Technology [2012BAD32B07]
- Natural Science Foundation of Guangdong Province [S2012040007546]
- National Natural Science Foundation of China [U1261116]
- Foundation of Director of Guangzhou Institute of Energy Conversion
- Chinese Academy of Sciences [y107rf1001]
- industrialization project of high-new technology of Guangdong province [2009B011200008]
- important project of knowledge innovation engineering of Chinese Academy of Sciences [KSCX2-YW-G-063]
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In this work, corncob acid hydrolysate was used for microbial oil production by oleaginous yeast Trichosporon coremiiforme for the first time. Hydrolysed by dilute sulphuric acid, corncob could turn into an acid hydrolysate with high sugar concentration (45.7 g L-1) and this hydrolysate could be utilized for microbial oil production without concentration process. After detoxified by overliming and absorption with activated carbon, the corncob hydrolysate could be used by T. coremiiforme efficiently that a total cell mass of 20.4 g L-1 with a lipid content of 37.8% (corresponding to a lipid yield of 7.7 g L-1), and a lipid coefficient of 17.2 could be obtained after cultivation of T. coremiiforme on the corncob hydrolysate for 8 days. Therefore, T. coremiiforme is a promising strain for microbial oil production from lignocellulosic biomass. (C) 2012 Elsevier Ltd. All rights reserved.
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