Carbon Dioxide Bioconversion Into Single Cell Oils (Lipids) In Two Reactors Inoculated With Acetobacterium Woodii and Rhodosporidium Toruloides
![Thumbnail](/dspace/bitstream/handle/2183/28815/Kennes_Christian_2021_Carbon_dioxide_bioconversion_single_cell_oils.pdf.jpg?sequence=5&isAllowed=y)
Use this link to cite
http://hdl.handle.net/2183/28815
Except where otherwise noted, this item's license is described as Atribución-NoComercial-SinDerivadas 4.0 Internacional
Collections
- GI-BIOENGIN- Artigos [91]
Metadata
Show full item recordTitle
Carbon Dioxide Bioconversion Into Single Cell Oils (Lipids) In Two Reactors Inoculated With Acetobacterium Woodii and Rhodosporidium ToruloidesDate
2021-08-12Citation
R. Robles-Iglesias, M.C. Veiga, C. Kennes, Carbon dioxide bioconversion into single cell oils (lipids) in two reactors inoculated with Acetobacterium woodii and Rhodosporidium toruloides, 52 (2021) 101668. https://doi.org/10.1016/j.jcou.2021.101668.
Abstract
[Abstract] Acetobacterium woodii was able to produce high concentrations of acetic acid, i.e., > 20 g/L, from CO2, in the presence of H2 as an energy source, which was favoured by maintaining a near-optimal pH of 7.8 in an automated bioreactor. This allows the mitigation of CO2 emissions for their conversion to acetic acid, which was then further used to produce lipids (single cell oils) by Rhodosporidium toruloides in the next assay. The yeast, grown on acetic acid, efficiently accumulated lipids in A. woodii’s medium, and further improved bioconversion would result in a highly promising process. Acetic acid inhibitory studies performed with R. toruloides, at different initial concentrations of the acid, using the fermented broth of A. woodii grown on CO2, showed that the yeast maintained a constant growth rate and substrate consumption rate up to acid concentrations of 15 g/L. Both rates remained roughly constant at higher initial acetic acid concentrations; except for a more extended lag phase observed in batch assays before the yeast entered in its exponential growth phase.
Keywords
Acetogenesis
Biodiesel
Fatty acid methyl ester
Greenhouse gas
Yeast
Biodiesel
Fatty acid methyl ester
Greenhouse gas
Yeast
Description
Financiado para publicación en acceso aberto: Universidade da Coruña/CISUG
Editor version
Rights
Atribución-NoComercial-SinDerivadas 4.0 Internacional
ISSN
2212-9820