Effect of carbon sources on lipid accumulation in Rhodococcus cells

被引:35
作者
Cortes, Maria Ana L. R. M. [1 ]
de Carvalho, Carla C. C. R. [1 ]
机构
[1] Univ Lisbon, Inst Super Tecn, Dept Bioengn, Inst Biotechnol & Bioengn,Ctr Biol & Chem Engn, P-1049001 Lisbon, Portugal
关键词
Microbial growth; Biosynthesis; Fermentation; Biofuel; Specialized lipid; Triacylglycerol; BIODIESEL PRODUCTION; ERYTHROPOLIS CELLS; STORAGE LIPIDS; OPACUS PD630; FATTY-ACIDS; TRIACYLGLYCEROLS; ADAPTATION; MICROALGAE; GROWTH; FUEL;
D O I
10.1016/j.bej.2014.11.017
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
New regenerative and ecologically friendly processes to produce energy are required to replace petroleum-based derived combustibles. The objective of this work was to assess the usefulness Of Rhodococcus erythropolis DCL14 and Rhodococcus opacus PWD4 cells to produce lipids for biodiesel blends. These cells accumulated triacylglycerols (TAGs), the most relevant lipids for biodiesel production, in addition to other lipids, including apolar lipids and phospholipids, which contained fatty acids that could be esterified. The proportion between phospholipids and storage lipids was dependent on carbon source and culture age. The estimated cetane number of the fatty acid blends produced ranged between 60.5 and 61.7 for R. erythropolis and 50.5 and 69.8 for R. opacus. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码:100 / 105
页数:6
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