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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Fu, Pengcheng Dexter, Jason |
| Copyright Year | 2009 |
| Abstract | Development of renewable energy is rapidly being embraced by our society and industry to achieve the nation's economic growth goals and to help address the world's energy and global warming crises. Currently most of the bioethanol production is from the fermentation of agricultural crops and residues. There is much debate concerning the cost effectiveness and energy efficiency of such biomass based ethanol production processes. Here, we report the creation of a Synechocystis sp. PCC 6803 strain that can photoautotrophically convert CO2 to bioethanol. Transformation was performed using a double homologous recombination system to integrate the pyruvate decarboxylase (pdc) and alcohol dehydrogenase II (adh) genes from obligately ethanol producing Zymomonas mobilis into the Synechocystis PCC 6803 chromosome under the control of the strong, light driven psbAII promoter. PCR based assay and ethanol production assay were used to screen for stable transformants. A computerized photobioreactor system was established for the experimental design and data acquisition for the analysis of the cyanobacterial cell cultures and ethanol production. The system described here shows an average yield of 5.2 mmol OD730 unit−1 litre−1 day−1 with no required antibiotic/selective agent. |
| Starting Page | 857 |
| Ending Page | 864 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 17545692 |
| Volume Number | 2 |
| Issue Number | 8 |
| Journal | Energy & Environmental Science |
| DOI | 10.1039/b811937f |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Renewable resource Global warming Ethanol Fermentation Efficient energy use Biofuel Synechocystis Homologous recombination Pyruvic acid Alcohol dehydrogenase Zymomonas mobilis Chromosome Polymerase chain reaction Photobioreactor Antibiotics |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering |
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