A hybrid inorganic–biological artificial photosynthesis system for energy-efficient food production
| Author(s) | Hann, Elizabeth C. | |
| Author(s) | Overa, Sean | |
| Author(s) | Harland-Dunaway, Marcus | |
| Author(s) | Narvaez, Andrés F. | |
| Author(s) | Le, Dang N. | |
| Author(s) | Orozco-Cárdenas, Martha L. | |
| Author(s) | Jiao, Feng | |
| Author(s) | Jinkerson, Robert E. | |
| Date Accessioned | 2022-07-11T14:15:24Z | |
| Date Available | 2022-07-11T14:15:24Z | |
| Publication Date | 2022-06-23 | |
| Description | This article was originally published in Nature Food. The version of record is available at: https://doi.org/10.1038/s43016-022-00530-x | en_US |
| Abstract | Artificial photosynthesis systems are proposed as an efficient alternative route to capture CO2 to produce additional food for growing global demand. Here a two-step CO2 electrolyser system was developed to produce a highly concentrated acetate stream with a 57% carbon selectivity (CO2 to acetate), allowing its direct use for the heterotrophic cultivation of yeast, mushroom-producing fungus and a photosynthetic green alga, in the dark without inputs from biological photosynthesis. An evaluation of nine crop plants found that carbon from exogenously supplied acetate incorporates into biomass through major metabolic pathways. Coupling this approach to existing photovoltaic systems could increase solar-to-food energy conversion efficiency by about fourfold over biological photosynthesis, reducing the solar footprint required. This technology allows for a reimagination of how food can be produced in controlled environments. | en_US |
| Sponsor | We thank J. Kirkwood (University of California, Riverside (UCR)) and the Institute of Integrative Genome Biology Metabolomics Core Facility at UCR for help with metabolomics analysis; the UCR Plant Transformation Research Center, where all plant experiments were conducted; H. Blanch (UCR) for advice on the efficiency calculations; Y. Li (UCR), S. Xu (UCR) and S. Wu (UCR) for advice and reagents for the yeast experiments; J. Hoover (UCR) for his early efforts towards acetate isolation; C. Mendoza (UCR) for help early on with the algae experiments; and M. Jouny (University of Delaware) for his efforts in developing the early concept of the two-step process. We thank T. Xiang (University of North Carolina, Charlotte), B. Velazquez Benitez (UCR), S. Frey (UCR) and J. Russo (UCR) for providing feedback on the manuscript. The following funding supported this work: Translational Research Institute for Space Health (TRISH) through NASA grant no. NNX16AO69A (R.E.J., E.H., M.H.-D., M.L.O.-C. and A.N.), Foundation for Food & Agriculture Research grant no. FF-NIA20–000000009 (R.E.J.), National Science Foundation grant no. DBI-1922642 (M.H.-D.), a Link Foundation Energy Fellowship (E.H.), Department of Energy grant no. DE-FE0029868 (F.J. and S.O.) and National Science Foundation grant no. CBET-1803200 (F.J. and S.O.). The content of this publication is solely the responsibility of the authors and does not necessarily represent the official views of the Foundation for Food & Agriculture Research (FFAR). | en_US |
| Citation | Hann, E.C., Overa, S., Harland-Dunaway, M. et al. A hybrid inorganic–biological artificial photosynthesis system for energy-efficient food production. Nat Food 3, 461–471 (2022). https://doi.org/10.1038/s43016-022-00530-x | en_US |
| ISSN | 2662-1355 | |
| URL | https://udspace.udel.edu/handle/19716/31096 | |
| Language | en_US | en_US |
| Publisher | Nature Food | en_US |
| Title | A hybrid inorganic–biological artificial photosynthesis system for energy-efficient food production | en_US |
| Type | Article | en_US |
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