气候变化领域集成服务门户(CCPortal): Photovoltaic-driven microbial protein production can use land and sunlight more efficiently than conventional crops

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DOI	10.1073/pnas.2015025118
	Photovoltaic-driven microbial protein production can use land and sunlight more efficiently than conventional crops
	Leger D.; Matassa S.; Noor E.; Shepon A.; Milo R.; Bar-Even A.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:26
英文摘要	Population growth and changes in dietary patterns place an evergrowing pressure on the environment. Feeding the world within sustainable boundaries therefore requires revolutionizing the way we harness natural resources. Microbial biomass can be cultivated to yield protein-rich feed and food supplements, collectively termed single-cell protein (SCP). Yet, we still lack a quantitative comparison between traditional agriculture and photovoltaic-driven SCP systems in terms of land use and energetic efficiency. Here, we analyze the energetic efficiency of harnessing solar energy to produce SCP from air and water. Ourmodel includes photovoltaic electricity generation, direct air capture of carbon dioxide, electrosynthesis of an electron donor and/or carbon source for microbial growth (hydrogen, formate, or methanol), microbial cultivation, and the processing of biomass and proteins. We show that, per unit of land, SCP production can reach an over 10-fold higher protein yield and at least twice the caloric yield compared with any staple crop. Altogether, this quantitative analysis offers an assessment of the future potential of photovoltaic-driven microbial foods to supplement conventional agricultural production and support resource-efficient protein supply on a global scale. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Electrochemistry; Food security; Microbial protein; Photovoltaics; Single-cell protein
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238503
作者单位	Systems and Synthetic Metabolism, Max Planck Institute of Molecular Plant Physiology, Potsdam, 14476, Germany; Department of Civil Architectural and Environmental Engineering, University of Naples Federico II, Naples, 80125, Italy; Department of Plant and Environmental Sciences, Weizmann Institute of Science, Rehovot, 7610001, Israel; Department of Environmental Studies, The Porter School of the Environment and Earth Sciences, Tel Aviv University, Tel Aviv, 6997801, Israel; The Steinhardt Museum of Natural History, Israel National Center for Biodiversity Studies, Tel Aviv University, Tel Aviv, 6997801, Israel
推荐引用方式 GB/T 7714	Leger D.,Matassa S.,Noor E.,et al. Photovoltaic-driven microbial protein production can use land and sunlight more efficiently than conventional crops[J],2021,118(26).
APA	Leger D.,Matassa S.,Noor E.,Shepon A.,Milo R.,&Bar-Even A..(2021).Photovoltaic-driven microbial protein production can use land and sunlight more efficiently than conventional crops.Proceedings of the National Academy of Sciences of the United States of America,118(26).
MLA	Leger D.,et al."Photovoltaic-driven microbial protein production can use land and sunlight more efficiently than conventional crops".Proceedings of the National Academy of Sciences of the United States of America 118.26(2021).