Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
11032750 | Algal Research | 2018 | 10 Pages |
Abstract
We developed a metabolic network describing the primary metabolism of Tetradesmus obliquus aimed to get a better understanding of metabolism to improve industrial production. The network includes 351 reactions with 183 metabolites distributed over 4 compartments: cytosol, chloroplast, mitochondria, and extracellular space. The energy requirements for biomass assembly and maintenance (Kx and mATP, respectively) were experimentally determined from batch cultures and included in the model. The determined values were 121.02â¯mmolATP·gDWâ1 for Kx and 0.66â¯mmolATP·gDWâ1·hâ1 for the mATP. The maintenance value found for T. obliquus is, to our knowledge, one of the lowest reported in literature for microalgae. This low value is also in agreement with the photon maintenance requirement found experimentally for T. obliquus (1.18â¯mmolph·gDWâ1·hâ1). Finally, the theoretical maximum yields based on the model for biomass, triacylglycerides (TAG), and starch yield on light were calculated to be 1.15â¯g·molphâ1, 1.05â¯gTAG·molphâ1, and 2.69â¯gstarch·molphâ1.
Keywords
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
G. Mitsue León-Saiki, NarcÃs Ferrer Ledo, David Lao-Martil, Douwe van der Veen, René H. Wijffels, Dirk E. Martens,